{"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 1 event(s); first=net.port_scan_hit\nLOG_WINDOW:\n L1-0 2026-04-25T04:12:00Z net.port_scan_hit src_ip=203.0.113.128 port=23\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage1_basic", "seed": 104606, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 1 event(s); first=net.port_scan_hit\nLOG_WINDOW:\n L1-0 2026-04-25T14:57:00Z net.port_scan_hit src_ip=203.0.113.214 port=23\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage1_basic", "seed": 104607, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 1 event(s); first=net.port_scan_hit\nLOG_WINDOW:\n L1-0 2026-04-25T01:54:00Z net.port_scan_hit src_ip=203.0.113.129 port=22\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage1_basic", "seed": 104608, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T07:33:00Z net.beacon dst_ip=10.0.64.169 interval_s=30\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage1_basic", "seed": 104609, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 1 event(s); first=edr.behavior_match\nLOG_WINDOW:\n L1-0 2026-04-25T21:32:00Z edr.behavior_match severity=high rule_id=EDR-5327 host=host-002\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage1_basic", "seed": 104610, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 3 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T20:44:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB\n L1-1 2026-04-25T20:44:15Z net.beacon dst_ip=203.0.113.5 interval_s=30\n L1-2 2026-04-25T20:44:30Z auth.privilege_grant user=bob role=admin\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"escalate\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Combined endpoint and network compromise signals \\u2014 page on-call.\"}"}], "task_id": "stage1_basic", "seed": 104611, "ground_truth": "escalate"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T02:03:00Z net.beacon dst_ip=10.0.55.248 interval_s=90\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage1_basic", "seed": 104612, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 1 event(s); first=edr.behavior_match\nLOG_WINDOW:\n L1-0 2026-04-25T16:02:00Z edr.behavior_match severity=high rule_id=EDR-9253 host=host-032\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage1_basic", "seed": 104613, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T06:50:00Z net.beacon dst_ip=10.0.136.238 interval_s=60\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage1_basic", "seed": 104614, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 1 event(s); first=edr.behavior_match\nLOG_WINDOW:\n L1-0 2026-04-25T10:08:00Z edr.behavior_match severity=high rule_id=EDR-4474 host=host-027\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage1_basic", "seed": 104615, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T03:26:00Z net.beacon dst_ip=10.0.77.28 interval_s=60\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage1_basic", "seed": 104616, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 1 event(s); first=edr.behavior_match\nLOG_WINDOW:\n L1-0 2026-04-25T14:08:00Z edr.behavior_match severity=high rule_id=EDR-6221 host=host-045\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage1_basic", "seed": 104617, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 2 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T18:09:00Z proc.lolbin_use process=powershell.exe parent_process=winword.exe cmd=-enc AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n L1-1 2026-04-25T18:09:05Z file.write path=C:\\Users\\Public\\tmp.exe\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage1_basic", "seed": 104618, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 1 event(s); first=edr.behavior_match\nLOG_WINDOW:\n L1-0 2026-04-25T12:20:00Z edr.behavior_match severity=high rule_id=EDR-4367 host=host-009\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage1_basic", "seed": 104619, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T05:17:00Z net.beacon dst_ip=10.0.30.204 interval_s=60\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage1_basic", "seed": 104620, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T15:22:00Z net.beacon dst_ip=10.0.7.81 interval_s=30\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage1_basic", "seed": 104621, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T21:47:00Z net.beacon dst_ip=10.0.110.20 interval_s=30\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage1_basic", "seed": 104622, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 1 event(s); first=edr.behavior_match\nLOG_WINDOW:\n L1-0 2026-04-25T17:38:00Z edr.behavior_match severity=high rule_id=EDR-4685 host=host-009\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage1_basic", "seed": 104623, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T20:58:00Z net.beacon dst_ip=10.0.233.62 interval_s=90\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage1_basic", "seed": 104624, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 2 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T07:50:00Z proc.lolbin_use process=powershell.exe parent_process=winword.exe cmd=-enc AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n L1-1 2026-04-25T07:50:05Z file.write path=C:\\Users\\Public\\tmp.exe\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage1_basic", "seed": 104625, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 2 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T19:40:00Z proc.lolbin_use process=powershell.exe parent_process=excel.exe cmd=-enc AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n L1-1 2026-04-25T19:40:05Z file.write path=C:\\Users\\Public\\payload.exe\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage1_basic", "seed": 104626, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: phishing: 1 event(s); first=email.link_clicked\nLOG_WINDOW:\n L1-0 2026-04-25T14:54:00Z email.link_clicked url=https://login-update.xyz/secure user=carol\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage1_basic", "seed": 104627, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 1 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T19:28:00Z auth.login_success user=erin src_ip=10.0.0.26\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"dismiss\", \"cited_log_id\": \"L1-0\", \"rationale\": \"No malicious indicators in the log window.\"}"}], "task_id": "stage1_basic", "seed": 104628, "ground_truth": "dismiss"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: brute_force: 5 event(s); first=auth.login_failure\nLOG_WINDOW:\n L1-0 2026-04-25T10:58:00Z auth.login_failure user=admin src_ip=203.0.113.5\n L1-1 2026-04-25T10:58:05Z auth.login_failure user=admin src_ip=203.0.113.25\n L1-2 2026-04-25T10:58:10Z auth.login_failure user=admin src_ip=203.0.113.142\n L1-3 2026-04-25T10:58:15Z auth.login_failure user=admin src_ip=203.0.113.90\n L1-4 2026-04-25T10:58:20Z auth.login_failure user=admin src_ip=203.0.113.131\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage1_basic", "seed": 104629, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 3 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T06:51:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB\n L1-1 2026-04-25T06:51:15Z net.beacon dst_ip=203.0.113.5 interval_s=30\n L1-2 2026-04-25T06:51:30Z auth.privilege_grant user=alice role=admin\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"escalate\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Combined endpoint and network compromise signals \\u2014 page on-call.\"}"}], "task_id": "stage1_basic", "seed": 104630, "ground_truth": "escalate"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T20:34:00Z net.beacon dst_ip=185.220.101.7 interval_s=60\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage1_basic", "seed": 104631, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T21:36:00Z net.beacon dst_ip=10.0.185.90 interval_s=60\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage1_basic", "seed": 104632, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 1 event(s); first=edr.behavior_match\nLOG_WINDOW:\n L1-0 2026-04-25T19:34:00Z edr.behavior_match severity=high rule_id=EDR-4400 host=host-046\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage1_basic", "seed": 104633, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: brute_force: 6 event(s); first=auth.login_failure\nLOG_WINDOW:\n L1-0 2026-04-25T04:13:00Z auth.login_failure user=alice src_ip=203.0.113.183\n L1-1 2026-04-25T04:13:05Z auth.login_failure user=alice src_ip=203.0.113.127\n L1-2 2026-04-25T04:13:10Z auth.login_failure user=alice src_ip=203.0.113.207\n L1-3 2026-04-25T04:13:15Z auth.login_failure user=alice src_ip=203.0.113.130\n L1-4 2026-04-25T04:13:20Z auth.login_failure user=alice src_ip=203.0.113.216\n L1-5 2026-04-25T04:13:25Z auth.login_failure user=alice src_ip=203.0.113.161\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage1_basic", "seed": 104634, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 1 event(s); first=edr.behavior_match\nLOG_WINDOW:\n L1-0 2026-04-25T09:53:00Z edr.behavior_match severity=high rule_id=EDR-9077 host=host-016\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage1_basic", "seed": 104635, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T21:42:00Z net.beacon dst_ip=10.0.206.210 interval_s=30\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage1_basic", "seed": 104636, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 1 event(s); first=net.port_scan_hit\nLOG_WINDOW:\n L1-0 2026-04-25T12:15:00Z net.port_scan_hit src_ip=203.0.113.169 port=5985\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage1_basic", "seed": 104637, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T04:58:00Z net.beacon dst_ip=10.0.64.70 interval_s=90\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage1_basic", "seed": 104638, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 1 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T07:11:00Z auth.login_success user=alice src_ip=10.0.0.77\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"dismiss\", \"cited_log_id\": \"L1-0\", \"rationale\": \"No malicious indicators in the log window.\"}"}], "task_id": "stage1_basic", "seed": 104639, "ground_truth": "dismiss"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: phishing: 1 event(s); first=email.link_clicked\nLOG_WINDOW:\n L1-0 2026-04-25T10:21:00Z email.link_clicked url=https://login-update.click/secure user=carol\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage1_basic", "seed": 104640, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: brute_force: 5 event(s); first=auth.login_failure\nLOG_WINDOW:\n L1-0 2026-04-25T04:05:00Z auth.login_failure user=admin src_ip=203.0.113.29\n L1-1 2026-04-25T04:05:05Z auth.login_failure user=admin src_ip=203.0.113.11\n L1-2 2026-04-25T04:05:10Z auth.login_failure user=admin src_ip=203.0.113.177\n L1-3 2026-04-25T04:05:15Z auth.login_failure user=admin src_ip=203.0.113.167\n L1-4 2026-04-25T04:05:20Z auth.login_failure user=admin src_ip=203.0.113.224\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage1_basic", "seed": 104641, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 1 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T11:37:00Z auth.login_success user=alice src_ip=10.0.0.45\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"dismiss\", \"cited_log_id\": \"L1-0\", \"rationale\": \"No malicious indicators in the log window.\"}"}], "task_id": "stage1_basic", "seed": 104642, "ground_truth": "dismiss"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: brute_force: 9 event(s); first=auth.login_failure\nLOG_WINDOW:\n L1-0 2026-04-25T11:41:00Z auth.login_failure user=admin src_ip=203.0.113.10\n L1-1 2026-04-25T11:41:05Z auth.login_failure user=admin src_ip=203.0.113.84\n L1-2 2026-04-25T11:41:10Z auth.login_failure user=admin src_ip=203.0.113.103\n L1-3 2026-04-25T11:41:15Z auth.login_failure user=admin src_ip=203.0.113.197\n L1-4 2026-04-25T11:41:20Z auth.login_failure user=admin src_ip=203.0.113.116\n L1-5 2026-04-25T11:41:25Z auth.login_failure user=admin src_ip=203.0.113.44\n L1-6 2026-04-25T11:41:30Z auth.login_failure user=admin src_ip=203.0.113.142\n L1-7 2026-04-25T11:41:35Z auth.login_failure user=admin src_ip=203.0.113.220\n L1-8 2026-04-25T11:41:40Z auth.login_failure user=admin src_ip=203.0.113.246\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage1_basic", "seed": 104643, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T00:58:00Z net.beacon dst_ip=10.0.124.86 interval_s=90\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage1_basic", "seed": 104644, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: brute_force: 5 event(s); first=auth.login_failure\nLOG_WINDOW:\n L1-0 2026-04-25T16:11:00Z auth.login_failure user=admin src_ip=203.0.113.55\n L1-1 2026-04-25T16:11:05Z auth.login_failure user=admin src_ip=203.0.113.216\n L1-2 2026-04-25T16:11:10Z auth.login_failure user=admin src_ip=203.0.113.11\n L1-3 2026-04-25T16:11:15Z auth.login_failure user=admin src_ip=203.0.113.108\n L1-4 2026-04-25T16:11:20Z auth.login_failure user=admin src_ip=203.0.113.200\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage1_basic", "seed": 104645, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 1 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T21:51:00Z auth.login_success user=carol src_ip=10.0.0.179\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"dismiss\", \"cited_log_id\": \"L1-0\", \"rationale\": \"No malicious indicators in the log window.\"}"}], "task_id": "stage1_basic", "seed": 104646, "ground_truth": "dismiss"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T02:48:00Z net.beacon dst_ip=185.220.101.7 interval_s=60\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage1_basic", "seed": 104647, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 1 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T15:57:00Z auth.login_success user=dave src_ip=10.0.0.161\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"dismiss\", \"cited_log_id\": \"L1-0\", \"rationale\": \"No malicious indicators in the log window.\"}"}], "task_id": "stage1_basic", "seed": 104648, "ground_truth": "dismiss"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 3 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T13:51:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB\n L1-1 2026-04-25T13:51:15Z net.beacon dst_ip=203.0.113.5 interval_s=30\n L1-2 2026-04-25T13:51:30Z auth.privilege_grant user=alice role=admin\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"escalate\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Combined endpoint and network compromise signals \\u2014 page on-call.\"}"}], "task_id": "stage1_basic", "seed": 104649, "ground_truth": "escalate"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T14:59:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage1_basic", "seed": 104650, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T08:01:00Z net.beacon dst_ip=10.0.171.52 interval_s=90\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage1_basic", "seed": 104651, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T07:13:00Z net.beacon dst_ip=10.0.18.137 interval_s=60\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage1_basic", "seed": 104652, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 1 event(s); first=net.port_scan_hit\nLOG_WINDOW:\n L1-0 2026-04-25T00:19:00Z net.port_scan_hit src_ip=203.0.113.3 port=5985\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage1_basic", "seed": 104653, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: phishing: 1 event(s); first=email.link_clicked\nLOG_WINDOW:\n L1-0 2026-04-25T13:59:00Z email.link_clicked url=https://login-update.xyz/secure user=carol\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage1_basic", "seed": 104654, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 1 event(s); first=edr.behavior_match\nLOG_WINDOW:\n L1-0 2026-04-25T11:16:00Z edr.behavior_match severity=high rule_id=EDR-6013 host=host-012\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage1_basic", "seed": 104655, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 1 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T08:35:00Z auth.login_success user=bob src_ip=10.0.0.113\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"dismiss\", \"cited_log_id\": \"L1-0\", \"rationale\": \"No malicious indicators in the log window.\"}"}], "task_id": "stage1_basic", "seed": 104656, "ground_truth": "dismiss"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 1 event(s); first=net.port_scan_hit\nLOG_WINDOW:\n L1-0 2026-04-25T05:08:00Z net.port_scan_hit src_ip=203.0.113.227 port=5985\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage1_basic", "seed": 104657, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 1 event(s); first=edr.behavior_match\nLOG_WINDOW:\n L1-0 2026-04-25T14:17:00Z edr.behavior_match severity=high rule_id=EDR-6449 host=host-017\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage1_basic", "seed": 104658, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 2 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T14:57:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n L1-1 2026-04-25T14:57:05Z file.write path=C:\\Users\\Public\\svc.exe\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage1_basic", "seed": 104659, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: phishing: 1 event(s); first=email.link_clicked\nLOG_WINDOW:\n L1-0 2026-04-25T18:54:00Z email.link_clicked url=https://login-update.click/secure user=carol\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage1_basic", "seed": 104660, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 1 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T19:17:00Z auth.login_success user=bob src_ip=10.0.0.192\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"dismiss\", \"cited_log_id\": \"L1-0\", \"rationale\": \"No malicious indicators in the log window.\"}"}], "task_id": "stage1_basic", "seed": 104661, "ground_truth": "dismiss"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 1 event(s); first=net.port_scan_hit\nLOG_WINDOW:\n L1-0 2026-04-25T02:51:00Z net.port_scan_hit src_ip=203.0.113.66 port=3389\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage1_basic", "seed": 104662, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 3 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T11:07:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB\n L1-1 2026-04-25T11:07:15Z net.beacon dst_ip=203.0.113.5 interval_s=30\n L1-2 2026-04-25T11:07:30Z auth.privilege_grant user=alice role=admin\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"escalate\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Combined endpoint and network compromise signals \\u2014 page on-call.\"}"}], "task_id": "stage1_basic", "seed": 104663, "ground_truth": "escalate"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 1 event(s); first=net.port_scan_hit\nLOG_WINDOW:\n L1-0 2026-04-25T03:18:00Z net.port_scan_hit src_ip=203.0.113.99 port=5985\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage1_basic", "seed": 104664, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 2 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T11:40:00Z proc.lolbin_use process=powershell.exe parent_process=winword.exe cmd=-enc AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n L1-1 2026-04-25T11:40:05Z file.write path=C:\\Users\\Public\\tmp.exe\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage1_basic", "seed": 104665, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 3 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T08:34:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB\n L1-1 2026-04-25T08:34:15Z net.beacon dst_ip=203.0.113.5 interval_s=30\n L1-2 2026-04-25T08:34:30Z auth.privilege_grant user=alice role=admin\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"escalate\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Combined endpoint and network compromise signals \\u2014 page on-call.\"}"}], "task_id": "stage1_basic", "seed": 104666, "ground_truth": "escalate"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: brute_force: 6 event(s); first=auth.login_failure\nLOG_WINDOW:\n L1-0 2026-04-25T10:55:00Z auth.login_failure user=alice src_ip=203.0.113.64\n L1-1 2026-04-25T10:55:05Z auth.login_failure user=alice src_ip=203.0.113.237\n L1-2 2026-04-25T10:55:10Z auth.login_failure user=alice src_ip=203.0.113.76\n L1-3 2026-04-25T10:55:15Z auth.login_failure user=alice src_ip=203.0.113.148\n L1-4 2026-04-25T10:55:20Z auth.login_failure user=alice src_ip=203.0.113.20\n L1-5 2026-04-25T10:55:25Z auth.login_failure user=alice src_ip=203.0.113.187\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage1_basic", "seed": 104667, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 3 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T10:54:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB\n L1-1 2026-04-25T10:54:15Z net.beacon dst_ip=203.0.113.5 interval_s=30\n L1-2 2026-04-25T10:54:30Z auth.privilege_grant user=bob role=admin\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"escalate\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Combined endpoint and network compromise signals \\u2014 page on-call.\"}"}], "task_id": "stage1_basic", "seed": 104668, "ground_truth": "escalate"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 1 event(s); first=edr.behavior_match\nLOG_WINDOW:\n L1-0 2026-04-25T07:52:00Z edr.behavior_match severity=high rule_id=EDR-9421 host=host-037\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage1_basic", "seed": 104669, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: phishing: 1 event(s); first=email.link_clicked\nLOG_WINDOW:\n L1-0 2026-04-25T05:34:00Z email.link_clicked url=https://login-update.click/secure user=carol\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage1_basic", "seed": 104670, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: brute_force: 8 event(s); first=auth.login_failure\nLOG_WINDOW:\n L1-0 2026-04-25T13:07:00Z auth.login_failure user=alice src_ip=203.0.113.11\n L1-1 2026-04-25T13:07:05Z auth.login_failure user=alice src_ip=203.0.113.203\n L1-2 2026-04-25T13:07:10Z auth.login_failure user=alice src_ip=203.0.113.6\n L1-3 2026-04-25T13:07:15Z auth.login_failure user=alice src_ip=203.0.113.191\n L1-4 2026-04-25T13:07:20Z auth.login_failure user=alice src_ip=203.0.113.18\n L1-5 2026-04-25T13:07:25Z auth.login_failure user=alice src_ip=203.0.113.236\n L1-6 2026-04-25T13:07:30Z auth.login_failure user=alice src_ip=203.0.113.35\n L1-7 2026-04-25T13:07:35Z auth.login_failure user=alice src_ip=203.0.113.206\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage1_basic", "seed": 104671, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 2 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T11:37:00Z proc.lolbin_use process=powershell.exe parent_process=excel.exe cmd=-enc AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n L1-1 2026-04-25T11:37:05Z file.write path=C:\\Users\\Public\\payload.exe\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage1_basic", "seed": 104672, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 1 event(s); first=edr.behavior_match\nLOG_WINDOW:\n L1-0 2026-04-25T00:09:00Z edr.behavior_match severity=high rule_id=EDR-6333 host=host-038\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage1_basic", "seed": 104673, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 3 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T08:42:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB\n L1-1 2026-04-25T08:42:15Z net.beacon dst_ip=203.0.113.5 interval_s=30\n L1-2 2026-04-25T08:42:30Z auth.privilege_grant user=alice role=admin\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"escalate\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Combined endpoint and network compromise signals \\u2014 page on-call.\"}"}], "task_id": "stage1_basic", "seed": 104674, "ground_truth": "escalate"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: phishing: 1 event(s); first=email.link_clicked\nLOG_WINDOW:\n L1-0 2026-04-25T08:58:00Z email.link_clicked url=https://login-update.ru/secure user=alice\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage1_basic", "seed": 104675, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: phishing: 1 event(s); first=email.link_clicked\nLOG_WINDOW:\n L1-0 2026-04-25T08:37:00Z email.link_clicked url=https://login-update.xyz/secure user=bob\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage1_basic", "seed": 104676, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 2 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T17:12:00Z proc.lolbin_use process=powershell.exe parent_process=excel.exe cmd=-enc AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n L1-1 2026-04-25T17:12:05Z file.write path=C:\\Users\\Public\\svc.exe\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage1_basic", "seed": 104677, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 1 event(s); first=edr.behavior_match\nLOG_WINDOW:\n L1-0 2026-04-25T11:03:00Z edr.behavior_match severity=high rule_id=EDR-7375 host=host-002\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage1_basic", "seed": 104678, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T07:15:00Z net.beacon dst_ip=10.0.205.200 interval_s=30\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage1_basic", "seed": 104679, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 1 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T05:12:00Z auth.login_success user=carol src_ip=10.0.0.113\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"dismiss\", \"cited_log_id\": \"L1-0\", \"rationale\": \"No malicious indicators in the log window.\"}"}], "task_id": "stage1_basic", "seed": 104680, "ground_truth": "dismiss"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 3 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T00:54:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB\n L1-1 2026-04-25T00:54:15Z net.beacon dst_ip=203.0.113.5 interval_s=30\n L1-2 2026-04-25T00:54:30Z auth.privilege_grant user=bob role=admin\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"escalate\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Combined endpoint and network compromise signals \\u2014 page on-call.\"}"}], "task_id": "stage1_basic", "seed": 104681, "ground_truth": "escalate"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 1 event(s); first=net.port_scan_hit\nLOG_WINDOW:\n L1-0 2026-04-25T00:46:00Z net.port_scan_hit src_ip=203.0.113.93 port=23\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage1_basic", "seed": 104682, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T06:28:00Z net.beacon dst_ip=10.0.197.152 interval_s=30\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage1_basic", "seed": 104683, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: brute_force: 8 event(s); first=auth.login_failure\nLOG_WINDOW:\n L1-0 2026-04-25T15:31:00Z auth.login_failure user=root src_ip=203.0.113.199\n L1-1 2026-04-25T15:31:05Z auth.login_failure user=root src_ip=203.0.113.218\n L1-2 2026-04-25T15:31:10Z auth.login_failure user=root src_ip=203.0.113.116\n L1-3 2026-04-25T15:31:15Z auth.login_failure user=root src_ip=203.0.113.204\n L1-4 2026-04-25T15:31:20Z auth.login_failure user=root src_ip=203.0.113.89\n L1-5 2026-04-25T15:31:25Z auth.login_failure user=root src_ip=203.0.113.217\n L1-6 2026-04-25T15:31:30Z auth.login_failure user=root src_ip=203.0.113.204\n L1-7 2026-04-25T15:31:35Z auth.login_failure user=root src_ip=203.0.113.122\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage1_basic", "seed": 104684, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 1 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T04:57:00Z auth.login_success user=alice src_ip=10.0.0.187\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"dismiss\", \"cited_log_id\": \"L1-0\", \"rationale\": \"No malicious indicators in the log window.\"}"}], "task_id": "stage1_basic", "seed": 104685, "ground_truth": "dismiss"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 1 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T10:03:00Z auth.login_success user=dave src_ip=10.0.0.45\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"dismiss\", \"cited_log_id\": \"L1-0\", \"rationale\": \"No malicious indicators in the log window.\"}"}], "task_id": "stage1_basic", "seed": 104686, "ground_truth": "dismiss"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T00:52:00Z net.beacon dst_ip=185.220.101.7 interval_s=60\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage1_basic", "seed": 104687, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 1 event(s); first=net.port_scan_hit\nLOG_WINDOW:\n L1-0 2026-04-25T05:43:00Z net.port_scan_hit src_ip=203.0.113.205 port=445\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage1_basic", "seed": 104688, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 1 event(s); first=net.port_scan_hit\nLOG_WINDOW:\n L1-0 2026-04-25T18:56:00Z net.port_scan_hit src_ip=203.0.113.247 port=5985\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage1_basic", "seed": 104689, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T09:47:00Z net.beacon dst_ip=185.220.101.7 interval_s=30\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage1_basic", "seed": 104690, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: brute_force: 7 event(s); first=auth.login_failure\nLOG_WINDOW:\n L1-0 2026-04-25T19:07:00Z auth.login_failure user=root src_ip=203.0.113.240\n L1-1 2026-04-25T19:07:05Z auth.login_failure user=root src_ip=203.0.113.237\n L1-2 2026-04-25T19:07:10Z auth.login_failure user=root src_ip=203.0.113.89\n L1-3 2026-04-25T19:07:15Z auth.login_failure user=root src_ip=203.0.113.111\n L1-4 2026-04-25T19:07:20Z auth.login_failure user=root src_ip=203.0.113.117\n L1-5 2026-04-25T19:07:25Z auth.login_failure user=root src_ip=203.0.113.206\n L1-6 2026-04-25T19:07:30Z auth.login_failure user=root src_ip=203.0.113.66\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage1_basic", "seed": 104691, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 2 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T04:17:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n L1-1 2026-04-25T04:17:05Z file.write path=C:\\Users\\Public\\tmp.exe\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage1_basic", "seed": 104692, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T05:24:00Z net.beacon dst_ip=10.0.155.73 interval_s=30\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage1_basic", "seed": 104693, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 1 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T19:24:00Z auth.login_success user=erin src_ip=10.0.0.16\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"dismiss\", \"cited_log_id\": \"L1-0\", \"rationale\": \"No malicious indicators in the log window.\"}"}], "task_id": "stage1_basic", "seed": 104694, "ground_truth": "dismiss"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T16:47:00Z net.beacon dst_ip=10.0.227.87 interval_s=60\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage1_basic", "seed": 104695, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: brute_force: 6 event(s); first=auth.login_failure\nLOG_WINDOW:\n L1-0 2026-04-25T21:46:00Z auth.login_failure user=alice src_ip=203.0.113.157\n L1-1 2026-04-25T21:46:05Z auth.login_failure user=alice src_ip=203.0.113.114\n L1-2 2026-04-25T21:46:10Z auth.login_failure user=alice src_ip=203.0.113.192\n L1-3 2026-04-25T21:46:15Z auth.login_failure user=alice src_ip=203.0.113.248\n L1-4 2026-04-25T21:46:20Z auth.login_failure user=alice src_ip=203.0.113.40\n L1-5 2026-04-25T21:46:25Z auth.login_failure user=alice src_ip=203.0.113.229\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage1_basic", "seed": 104696, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 1 event(s); first=net.port_scan_hit\nLOG_WINDOW:\n L1-0 2026-04-25T08:06:00Z net.port_scan_hit src_ip=203.0.113.223 port=445\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage1_basic", "seed": 104697, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 1 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T14:37:00Z auth.login_success user=dave src_ip=10.0.0.8\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"dismiss\", \"cited_log_id\": \"L1-0\", \"rationale\": \"No malicious indicators in the log window.\"}"}], "task_id": "stage1_basic", "seed": 104698, "ground_truth": "dismiss"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 3 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T04:21:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB\n L1-1 2026-04-25T04:21:15Z net.beacon dst_ip=203.0.113.5 interval_s=30\n L1-2 2026-04-25T04:21:30Z auth.privilege_grant user=bob role=admin\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"escalate\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Combined endpoint and network compromise signals \\u2014 page on-call.\"}"}], "task_id": "stage1_basic", "seed": 104699, "ground_truth": "escalate"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 1 event(s); first=edr.behavior_match\nLOG_WINDOW:\n L1-0 2026-04-25T17:22:00Z edr.behavior_match severity=high rule_id=EDR-2947 host=host-047\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage1_basic", "seed": 104700, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 2 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T07:47:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n L1-1 2026-04-25T07:47:05Z file.write path=C:\\Users\\Public\\tmp.exe\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage1_basic", "seed": 104701, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: phishing: 1 event(s); first=email.link_clicked\nLOG_WINDOW:\n L1-0 2026-04-25T12:54:00Z email.link_clicked url=https://login-update.click/secure user=bob\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage1_basic", "seed": 104702, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 1 event(s); first=net.port_scan_hit\nLOG_WINDOW:\n L1-0 2026-04-25T20:24:00Z net.port_scan_hit src_ip=203.0.113.241 port=5985\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage1_basic", "seed": 104703, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 2 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T17:13:00Z proc.lolbin_use process=powershell.exe parent_process=winword.exe cmd=-enc AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n L1-1 2026-04-25T17:13:05Z file.write path=C:\\Users\\Public\\tmp.exe\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage1_basic", "seed": 104704, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T13:35:00Z net.beacon dst_ip=10.0.203.248 interval_s=60\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage1_basic", "seed": 104705, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T04:24:00Z net.beacon dst_ip=10.0.1.133 interval_s=30\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage1_basic", "seed": 104706, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 1 event(s); first=edr.behavior_match\nLOG_WINDOW:\n L1-0 2026-04-25T08:09:00Z edr.behavior_match severity=high rule_id=EDR-7280 host=host-035\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage1_basic", "seed": 104707, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 1 event(s); first=edr.behavior_match\nLOG_WINDOW:\n L1-0 2026-04-25T22:46:00Z edr.behavior_match severity=high rule_id=EDR-8012 host=host-036\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage1_basic", "seed": 104708, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 2 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T14:00:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n L1-1 2026-04-25T14:00:05Z file.write path=C:\\Users\\Public\\payload.exe\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage1_basic", "seed": 104709, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: phishing: 1 event(s); first=email.link_clicked\nLOG_WINDOW:\n L1-0 2026-04-25T00:27:00Z email.link_clicked url=https://login-update.xyz/secure user=bob\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage1_basic", "seed": 104710, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T22:10:00Z net.beacon dst_ip=10.0.217.59 interval_s=90\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage1_basic", "seed": 104711, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: phishing: 1 event(s); first=email.link_clicked\nLOG_WINDOW:\n L1-0 2026-04-25T07:31:00Z email.link_clicked url=https://login-update.top/secure user=alice\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage1_basic", "seed": 104712, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 1 event(s); first=net.port_scan_hit\nLOG_WINDOW:\n L1-0 2026-04-25T16:34:00Z net.port_scan_hit src_ip=203.0.113.238 port=5985\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage1_basic", "seed": 104713, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 2 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T01:52:00Z proc.lolbin_use process=powershell.exe parent_process=winword.exe cmd=-enc AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n L1-1 2026-04-25T01:52:05Z file.write path=C:\\Users\\Public\\tmp.exe\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage1_basic", "seed": 104714, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T05:57:00Z net.beacon dst_ip=10.0.70.63 interval_s=60\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage1_basic", "seed": 104715, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: brute_force: 6 event(s); first=auth.login_failure\nLOG_WINDOW:\n L1-0 2026-04-25T02:41:00Z auth.login_failure user=admin src_ip=203.0.113.144\n L1-1 2026-04-25T02:41:05Z auth.login_failure user=admin src_ip=203.0.113.108\n L1-2 2026-04-25T02:41:10Z auth.login_failure user=admin src_ip=203.0.113.26\n L1-3 2026-04-25T02:41:15Z auth.login_failure user=admin src_ip=203.0.113.55\n L1-4 2026-04-25T02:41:20Z auth.login_failure user=admin src_ip=203.0.113.59\n L1-5 2026-04-25T02:41:25Z auth.login_failure user=admin src_ip=203.0.113.187\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage1_basic", "seed": 104716, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 1 event(s); first=edr.behavior_match\nLOG_WINDOW:\n L1-0 2026-04-25T02:56:00Z edr.behavior_match severity=high rule_id=EDR-6034 host=host-015\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage1_basic", "seed": 104717, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 2 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T18:00:00Z proc.lolbin_use process=powershell.exe parent_process=excel.exe cmd=-enc AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n L1-1 2026-04-25T18:00:05Z file.write path=C:\\Users\\Public\\payload.exe\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage1_basic", "seed": 104718, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 1 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T00:52:00Z auth.login_success user=alice src_ip=10.0.0.13\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"dismiss\", \"cited_log_id\": \"L1-0\", \"rationale\": \"No malicious indicators in the log window.\"}"}], "task_id": "stage1_basic", "seed": 104719, "ground_truth": "dismiss"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: phishing: 1 event(s); first=email.link_clicked\nLOG_WINDOW:\n L1-0 2026-04-25T09:41:00Z email.link_clicked url=https://login-update.cn/secure user=alice\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage1_basic", "seed": 104720, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 3 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T21:18:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB\n L1-1 2026-04-25T21:18:15Z net.beacon dst_ip=203.0.113.5 interval_s=30\n L1-2 2026-04-25T21:18:30Z auth.privilege_grant user=alice role=admin\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"escalate\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Combined endpoint and network compromise signals \\u2014 page on-call.\"}"}], "task_id": "stage1_basic", "seed": 104721, "ground_truth": "escalate"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 3 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T09:48:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB\n L1-1 2026-04-25T09:48:15Z net.beacon dst_ip=203.0.113.5 interval_s=30\n L1-2 2026-04-25T09:48:30Z auth.privilege_grant user=bob role=admin\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"escalate\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Combined endpoint and network compromise signals \\u2014 page on-call.\"}"}], "task_id": "stage1_basic", "seed": 104722, "ground_truth": "escalate"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: phishing: 1 event(s); first=email.link_clicked\nLOG_WINDOW:\n L1-0 2026-04-25T12:39:00Z email.link_clicked url=https://login-update.top/secure user=alice\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage1_basic", "seed": 104723, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 1 event(s); first=net.port_scan_hit\nLOG_WINDOW:\n L1-0 2026-04-25T22:11:00Z net.port_scan_hit src_ip=203.0.113.142 port=5985\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage1_basic", "seed": 104724, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: brute_force: 6 event(s); first=auth.login_failure\nLOG_WINDOW:\n L1-0 2026-04-25T20:33:00Z auth.login_failure user=alice src_ip=203.0.113.67\n L1-1 2026-04-25T20:33:05Z auth.login_failure user=alice src_ip=203.0.113.143\n L1-2 2026-04-25T20:33:10Z auth.login_failure user=alice src_ip=203.0.113.100\n L1-3 2026-04-25T20:33:15Z auth.login_failure user=alice src_ip=203.0.113.160\n L1-4 2026-04-25T20:33:20Z auth.login_failure user=alice src_ip=203.0.113.84\n L1-5 2026-04-25T20:33:25Z auth.login_failure user=alice src_ip=203.0.113.163\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage1_basic", "seed": 104725, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 1 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T11:03:00Z auth.login_success user=alice src_ip=10.0.0.136\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"dismiss\", \"cited_log_id\": \"L1-0\", \"rationale\": \"No malicious indicators in the log window.\"}"}], "task_id": "stage1_basic", "seed": 104726, "ground_truth": "dismiss"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T01:56:00Z net.beacon dst_ip=185.220.101.7 interval_s=30\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage1_basic", "seed": 104727, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T08:33:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage1_basic", "seed": 104728, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:05:00Z net.beacon dst_ip=10.0.154.121 interval_s=30\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage1_basic", "seed": 104729, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 3 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T00:51:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB\n L1-1 2026-04-25T00:51:15Z net.beacon dst_ip=203.0.113.5 interval_s=30\n L1-2 2026-04-25T00:51:30Z auth.privilege_grant user=bob role=admin\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"escalate\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Combined endpoint and network compromise signals \\u2014 page on-call.\"}"}], "task_id": "stage1_basic", "seed": 104730, "ground_truth": "escalate"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T18:42:00Z net.beacon dst_ip=10.0.243.46 interval_s=60\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage1_basic", "seed": 104731, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 1 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T06:47:00Z auth.login_success user=erin src_ip=10.0.0.128\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"dismiss\", \"cited_log_id\": \"L1-0\", \"rationale\": \"No malicious indicators in the log window.\"}"}], "task_id": "stage1_basic", "seed": 104732, "ground_truth": "dismiss"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T18:56:00Z net.beacon dst_ip=198.51.100.42 interval_s=30\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage1_basic", "seed": 104733, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 1 event(s); first=net.port_scan_hit\nLOG_WINDOW:\n L1-0 2026-04-25T08:34:00Z net.port_scan_hit src_ip=203.0.113.224 port=23\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage1_basic", "seed": 104734, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 2 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T12:21:00Z proc.lolbin_use process=powershell.exe parent_process=excel.exe cmd=-enc AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n L1-1 2026-04-25T12:21:05Z file.write path=C:\\Users\\Public\\tmp.exe\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage1_basic", "seed": 104735, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: brute_force: 7 event(s); first=auth.login_failure\nLOG_WINDOW:\n L1-0 2026-04-25T07:47:00Z auth.login_failure user=alice src_ip=203.0.113.133\n L1-1 2026-04-25T07:47:05Z auth.login_failure user=alice src_ip=203.0.113.85\n L1-2 2026-04-25T07:47:10Z auth.login_failure user=alice src_ip=203.0.113.171\n L1-3 2026-04-25T07:47:15Z auth.login_failure user=alice src_ip=203.0.113.207\n L1-4 2026-04-25T07:47:20Z auth.login_failure user=alice src_ip=203.0.113.86\n L1-5 2026-04-25T07:47:25Z auth.login_failure user=alice src_ip=203.0.113.247\n L1-6 2026-04-25T07:47:30Z auth.login_failure user=alice src_ip=203.0.113.19\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage1_basic", "seed": 104736, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 1 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T16:48:00Z auth.login_success user=dave src_ip=10.0.0.124\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"dismiss\", \"cited_log_id\": \"L1-0\", \"rationale\": \"No malicious indicators in the log window.\"}"}], "task_id": "stage1_basic", "seed": 104737, "ground_truth": "dismiss"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: brute_force: 7 event(s); first=auth.login_failure\nLOG_WINDOW:\n L1-0 2026-04-25T10:08:00Z auth.login_failure user=admin src_ip=203.0.113.246\n L1-1 2026-04-25T10:08:05Z auth.login_failure user=admin src_ip=203.0.113.232\n L1-2 2026-04-25T10:08:10Z auth.login_failure user=admin src_ip=203.0.113.241\n L1-3 2026-04-25T10:08:15Z auth.login_failure user=admin src_ip=203.0.113.208\n L1-4 2026-04-25T10:08:20Z auth.login_failure user=admin src_ip=203.0.113.85\n L1-5 2026-04-25T10:08:25Z auth.login_failure user=admin src_ip=203.0.113.173\n L1-6 2026-04-25T10:08:30Z auth.login_failure user=admin src_ip=203.0.113.209\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage1_basic", "seed": 104738, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: brute_force: 9 event(s); first=auth.login_failure\nLOG_WINDOW:\n L1-0 2026-04-25T14:02:00Z auth.login_failure user=service_acct src_ip=203.0.113.72\n L1-1 2026-04-25T14:02:05Z auth.login_failure user=service_acct src_ip=203.0.113.11\n L1-2 2026-04-25T14:02:10Z auth.login_failure user=service_acct src_ip=203.0.113.183\n L1-3 2026-04-25T14:02:15Z auth.login_failure user=service_acct src_ip=203.0.113.177\n L1-4 2026-04-25T14:02:20Z auth.login_failure user=service_acct src_ip=203.0.113.119\n L1-5 2026-04-25T14:02:25Z auth.login_failure user=service_acct src_ip=203.0.113.229\n L1-6 2026-04-25T14:02:30Z auth.login_failure user=service_acct src_ip=203.0.113.30\n L1-7 2026-04-25T14:02:35Z auth.login_failure user=service_acct src_ip=203.0.113.136\n L1-8 2026-04-25T14:02:40Z auth.login_failure user=service_acct src_ip=203.0.113.159\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage1_basic", "seed": 104739, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T14:57:00Z net.beacon dst_ip=203.0.113.5 interval_s=30\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage1_basic", "seed": 104740, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 1 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T15:29:00Z auth.login_success user=carol src_ip=10.0.0.32\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"dismiss\", \"cited_log_id\": \"L1-0\", \"rationale\": \"No malicious indicators in the log window.\"}"}], "task_id": "stage1_basic", "seed": 104741, "ground_truth": "dismiss"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 1 event(s); first=net.port_scan_hit\nLOG_WINDOW:\n L1-0 2026-04-25T15:02:00Z net.port_scan_hit src_ip=203.0.113.221 port=22\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage1_basic", "seed": 104742, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 2 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T03:58:00Z proc.lolbin_use process=powershell.exe parent_process=winword.exe cmd=-enc AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n L1-1 2026-04-25T03:58:05Z file.write path=C:\\Users\\Public\\svc.exe\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage1_basic", "seed": 104743, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 1 event(s); first=net.port_scan_hit\nLOG_WINDOW:\n L1-0 2026-04-25T16:37:00Z net.port_scan_hit src_ip=203.0.113.172 port=445\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage1_basic", "seed": 104744, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T07:14:00Z net.beacon dst_ip=10.0.139.202 interval_s=90\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage1_basic", "seed": 104745, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T09:42:00Z net.beacon dst_ip=185.220.101.7 interval_s=30\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage1_basic", "seed": 104746, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: brute_force: 8 event(s); first=auth.login_failure\nLOG_WINDOW:\n L1-0 2026-04-25T04:40:00Z auth.login_failure user=admin src_ip=203.0.113.206\n L1-1 2026-04-25T04:40:05Z auth.login_failure user=admin src_ip=203.0.113.17\n L1-2 2026-04-25T04:40:10Z auth.login_failure user=admin src_ip=203.0.113.168\n L1-3 2026-04-25T04:40:15Z auth.login_failure user=admin src_ip=203.0.113.101\n L1-4 2026-04-25T04:40:20Z auth.login_failure user=admin src_ip=203.0.113.193\n L1-5 2026-04-25T04:40:25Z auth.login_failure user=admin src_ip=203.0.113.173\n L1-6 2026-04-25T04:40:30Z auth.login_failure user=admin src_ip=203.0.113.243\n L1-7 2026-04-25T04:40:35Z auth.login_failure user=admin src_ip=203.0.113.234\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage1_basic", "seed": 104747, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 3 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T03:11:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB\n L1-1 2026-04-25T03:11:15Z net.beacon dst_ip=203.0.113.5 interval_s=30\n L1-2 2026-04-25T03:11:30Z auth.privilege_grant user=alice role=admin\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"escalate\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Combined endpoint and network compromise signals \\u2014 page on-call.\"}"}], "task_id": "stage1_basic", "seed": 104748, "ground_truth": "escalate"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 3 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T03:50:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB\n L1-1 2026-04-25T03:50:15Z net.beacon dst_ip=203.0.113.5 interval_s=30\n L1-2 2026-04-25T03:50:30Z auth.privilege_grant user=bob role=admin\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"escalate\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Combined endpoint and network compromise signals \\u2014 page on-call.\"}"}], "task_id": "stage1_basic", "seed": 104749, "ground_truth": "escalate"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 2 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T01:37:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n L1-1 2026-04-25T01:37:05Z file.write path=C:\\Users\\Public\\svc.exe\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage1_basic", "seed": 104750, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T14:45:00Z net.beacon dst_ip=185.220.101.7 interval_s=30\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage1_basic", "seed": 104751, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T20:12:00Z net.beacon dst_ip=10.0.227.230 interval_s=90\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage1_basic", "seed": 104752, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T19:02:00Z net.beacon dst_ip=10.0.6.125 interval_s=90\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage1_basic", "seed": 104753, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 2 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T07:07:00Z proc.lolbin_use process=powershell.exe parent_process=chrome.exe cmd=-enc AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n L1-1 2026-04-25T07:07:05Z file.write path=C:\\Users\\Public\\payload.exe\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage1_basic", "seed": 104754, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 1 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T04:07:00Z auth.login_success user=carol src_ip=10.0.0.185\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"dismiss\", \"cited_log_id\": \"L1-0\", \"rationale\": \"No malicious indicators in the log window.\"}"}], "task_id": "stage1_basic", "seed": 104755, "ground_truth": "dismiss"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 1 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T01:39:00Z auth.login_success user=bob src_ip=10.0.0.90\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"dismiss\", \"cited_log_id\": \"L1-0\", \"rationale\": \"No malicious indicators in the log window.\"}"}], "task_id": "stage1_basic", "seed": 104756, "ground_truth": "dismiss"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 2 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T03:09:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n L1-1 2026-04-25T03:09:05Z file.write path=C:\\Users\\Public\\tmp.exe\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage1_basic", "seed": 104757, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 1 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T17:48:00Z auth.login_success user=carol src_ip=10.0.0.200\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"dismiss\", \"cited_log_id\": \"L1-0\", \"rationale\": \"No malicious indicators in the log window.\"}"}], "task_id": "stage1_basic", "seed": 104758, "ground_truth": "dismiss"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T12:12:00Z net.beacon dst_ip=10.0.131.138 interval_s=30\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage1_basic", "seed": 104759, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: phishing: 1 event(s); first=email.link_clicked\nLOG_WINDOW:\n L1-0 2026-04-25T13:03:00Z email.link_clicked url=https://login-update.xyz/secure user=carol\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage1_basic", "seed": 104760, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 2 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T04:41:00Z proc.lolbin_use process=powershell.exe parent_process=excel.exe cmd=-enc AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n L1-1 2026-04-25T04:41:05Z file.write path=C:\\Users\\Public\\svc.exe\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage1_basic", "seed": 104761, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T19:03:00Z net.beacon dst_ip=10.0.239.53 interval_s=60\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage1_basic", "seed": 104762, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 1 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T12:37:00Z auth.login_success user=dave src_ip=10.0.0.31\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"dismiss\", \"cited_log_id\": \"L1-0\", \"rationale\": \"No malicious indicators in the log window.\"}"}], "task_id": "stage1_basic", "seed": 104763, "ground_truth": "dismiss"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T14:36:00Z net.beacon dst_ip=185.220.101.7 interval_s=60\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage1_basic", "seed": 104764, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T18:11:00Z net.beacon dst_ip=10.0.193.119 interval_s=60\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage1_basic", "seed": 104765, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 1 event(s); first=edr.behavior_match\nLOG_WINDOW:\n L1-0 2026-04-25T21:36:00Z edr.behavior_match severity=high rule_id=EDR-3127 host=host-001\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage1_basic", "seed": 104766, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 3 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T17:32:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB\n L1-1 2026-04-25T17:32:15Z net.beacon dst_ip=203.0.113.5 interval_s=30\n L1-2 2026-04-25T17:32:30Z auth.privilege_grant user=bob role=admin\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"escalate\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Combined endpoint and network compromise signals \\u2014 page on-call.\"}"}], "task_id": "stage1_basic", "seed": 104767, "ground_truth": "escalate"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 1 event(s); first=net.port_scan_hit\nLOG_WINDOW:\n L1-0 2026-04-25T10:17:00Z net.port_scan_hit src_ip=203.0.113.249 port=3389\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage1_basic", "seed": 104768, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T02:58:00Z net.beacon dst_ip=10.0.104.93 interval_s=60\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage1_basic", "seed": 104769, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 1 event(s); first=edr.behavior_match\nLOG_WINDOW:\n L1-0 2026-04-25T17:06:00Z edr.behavior_match severity=high rule_id=EDR-8376 host=host-027\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage1_basic", "seed": 104770, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 1 event(s); first=edr.behavior_match\nLOG_WINDOW:\n L1-0 2026-04-25T07:57:00Z edr.behavior_match severity=high rule_id=EDR-4716 host=host-004\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage1_basic", "seed": 104771, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 1 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T10:14:00Z auth.login_success user=carol src_ip=10.0.0.135\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"dismiss\", \"cited_log_id\": \"L1-0\", \"rationale\": \"No malicious indicators in the log window.\"}"}], "task_id": "stage1_basic", "seed": 104772, "ground_truth": "dismiss"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 1 event(s); first=edr.behavior_match\nLOG_WINDOW:\n L1-0 2026-04-25T18:19:00Z edr.behavior_match severity=high rule_id=EDR-6723 host=host-045\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage1_basic", "seed": 104773, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 2 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T07:25:00Z proc.lolbin_use process=powershell.exe parent_process=winword.exe cmd=-enc AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n L1-1 2026-04-25T07:25:05Z file.write path=C:\\Users\\Public\\svc.exe\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage1_basic", "seed": 104774, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: brute_force: 7 event(s); first=auth.login_failure\nLOG_WINDOW:\n L1-0 2026-04-25T06:18:00Z auth.login_failure user=root src_ip=203.0.113.205\n L1-1 2026-04-25T06:18:05Z auth.login_failure user=root src_ip=203.0.113.35\n L1-2 2026-04-25T06:18:10Z auth.login_failure user=root src_ip=203.0.113.84\n L1-3 2026-04-25T06:18:15Z auth.login_failure user=root src_ip=203.0.113.89\n L1-4 2026-04-25T06:18:20Z auth.login_failure user=root src_ip=203.0.113.186\n L1-5 2026-04-25T06:18:25Z auth.login_failure user=root src_ip=203.0.113.167\n L1-6 2026-04-25T06:18:30Z auth.login_failure user=root src_ip=203.0.113.97\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage1_basic", "seed": 104775, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 1 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T13:56:00Z auth.login_success user=carol src_ip=10.0.0.106\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"dismiss\", \"cited_log_id\": \"L1-0\", \"rationale\": \"No malicious indicators in the log window.\"}"}], "task_id": "stage1_basic", "seed": 104776, "ground_truth": "dismiss"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: brute_force: 7 event(s); first=auth.login_failure\nLOG_WINDOW:\n L1-0 2026-04-25T13:16:00Z auth.login_failure user=root src_ip=203.0.113.20\n L1-1 2026-04-25T13:16:05Z auth.login_failure user=root src_ip=203.0.113.89\n L1-2 2026-04-25T13:16:10Z auth.login_failure user=root src_ip=203.0.113.141\n L1-3 2026-04-25T13:16:15Z auth.login_failure user=root src_ip=203.0.113.24\n L1-4 2026-04-25T13:16:20Z auth.login_failure user=root src_ip=203.0.113.237\n L1-5 2026-04-25T13:16:25Z auth.login_failure user=root src_ip=203.0.113.76\n L1-6 2026-04-25T13:16:30Z auth.login_failure user=root src_ip=203.0.113.155\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage1_basic", "seed": 104777, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 1 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T14:29:00Z auth.login_success user=bob src_ip=10.0.0.143\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"dismiss\", \"cited_log_id\": \"L1-0\", \"rationale\": \"No malicious indicators in the log window.\"}"}], "task_id": "stage1_basic", "seed": 104778, "ground_truth": "dismiss"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 1 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T13:48:00Z auth.login_success user=dave src_ip=10.0.0.57\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"dismiss\", \"cited_log_id\": \"L1-0\", \"rationale\": \"No malicious indicators in the log window.\"}"}], "task_id": "stage1_basic", "seed": 104779, "ground_truth": "dismiss"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 1 event(s); first=edr.behavior_match\nLOG_WINDOW:\n L1-0 2026-04-25T21:50:00Z edr.behavior_match severity=high rule_id=EDR-1125 host=host-010\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage1_basic", "seed": 104780, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 3 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T02:42:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB\n L1-1 2026-04-25T02:42:15Z net.beacon dst_ip=203.0.113.5 interval_s=30\n L1-2 2026-04-25T02:42:30Z auth.privilege_grant user=alice role=admin\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"escalate\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Combined endpoint and network compromise signals \\u2014 page on-call.\"}"}], "task_id": "stage1_basic", "seed": 104781, "ground_truth": "escalate"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: brute_force: 7 event(s); first=auth.login_failure\nLOG_WINDOW:\n L1-0 2026-04-25T04:31:00Z auth.login_failure user=service_acct src_ip=203.0.113.145\n L1-1 2026-04-25T04:31:05Z auth.login_failure user=service_acct src_ip=203.0.113.206\n L1-2 2026-04-25T04:31:10Z auth.login_failure user=service_acct src_ip=203.0.113.122\n L1-3 2026-04-25T04:31:15Z auth.login_failure user=service_acct src_ip=203.0.113.29\n L1-4 2026-04-25T04:31:20Z auth.login_failure user=service_acct src_ip=203.0.113.219\n L1-5 2026-04-25T04:31:25Z auth.login_failure user=service_acct src_ip=203.0.113.196\n L1-6 2026-04-25T04:31:30Z auth.login_failure user=service_acct src_ip=203.0.113.129\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage1_basic", "seed": 104782, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 1 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T07:22:00Z auth.login_success user=dave src_ip=10.0.0.138\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"dismiss\", \"cited_log_id\": \"L1-0\", \"rationale\": \"No malicious indicators in the log window.\"}"}], "task_id": "stage1_basic", "seed": 104783, "ground_truth": "dismiss"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: phishing: 1 event(s); first=email.link_clicked\nLOG_WINDOW:\n L1-0 2026-04-25T19:55:00Z email.link_clicked url=https://login-update.cn/secure user=bob\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage1_basic", "seed": 104784, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T01:36:00Z net.beacon dst_ip=10.0.245.236 interval_s=60\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage1_basic", "seed": 104785, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 1 event(s); first=edr.behavior_match\nLOG_WINDOW:\n L1-0 2026-04-25T05:04:00Z edr.behavior_match severity=high rule_id=EDR-3154 host=host-031\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage1_basic", "seed": 104786, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T18:44:00Z net.beacon dst_ip=10.0.53.84 interval_s=30\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage1_basic", "seed": 104787, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: brute_force: 6 event(s); first=auth.login_failure\nLOG_WINDOW:\n L1-0 2026-04-25T04:30:00Z auth.login_failure user=alice src_ip=203.0.113.55\n L1-1 2026-04-25T04:30:05Z auth.login_failure user=alice src_ip=203.0.113.219\n L1-2 2026-04-25T04:30:10Z auth.login_failure user=alice src_ip=203.0.113.92\n L1-3 2026-04-25T04:30:15Z auth.login_failure user=alice src_ip=203.0.113.244\n L1-4 2026-04-25T04:30:20Z auth.login_failure user=alice src_ip=203.0.113.182\n L1-5 2026-04-25T04:30:25Z auth.login_failure user=alice src_ip=203.0.113.32\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage1_basic", "seed": 104788, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: brute_force: 6 event(s); first=auth.login_failure\nLOG_WINDOW:\n L1-0 2026-04-25T14:18:00Z auth.login_failure user=root src_ip=203.0.113.11\n L1-1 2026-04-25T14:18:05Z auth.login_failure user=root src_ip=203.0.113.125\n L1-2 2026-04-25T14:18:10Z auth.login_failure user=root src_ip=203.0.113.236\n L1-3 2026-04-25T14:18:15Z auth.login_failure user=root src_ip=203.0.113.216\n L1-4 2026-04-25T14:18:20Z auth.login_failure user=root src_ip=203.0.113.48\n L1-5 2026-04-25T14:18:25Z auth.login_failure user=root src_ip=203.0.113.184\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage1_basic", "seed": 104789, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T21:50:00Z net.beacon dst_ip=10.0.249.50 interval_s=90\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage1_basic", "seed": 104790, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T11:07:00Z net.beacon dst_ip=10.0.160.206 interval_s=30\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage1_basic", "seed": 104791, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 3 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T10:52:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB\n L1-1 2026-04-25T10:52:15Z net.beacon dst_ip=203.0.113.5 interval_s=30\n L1-2 2026-04-25T10:52:30Z auth.privilege_grant user=bob role=admin\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"escalate\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Combined endpoint and network compromise signals \\u2014 page on-call.\"}"}], "task_id": "stage1_basic", "seed": 104792, "ground_truth": "escalate"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 2 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T18:29:00Z proc.lolbin_use process=powershell.exe parent_process=winword.exe cmd=-enc AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n L1-1 2026-04-25T18:29:05Z file.write path=C:\\Users\\Public\\svc.exe\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage1_basic", "seed": 104793, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: phishing: 1 event(s); first=email.link_clicked\nLOG_WINDOW:\n L1-0 2026-04-25T01:23:00Z email.link_clicked url=https://login-update.cn/secure user=alice\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage1_basic", "seed": 104794, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 3 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T13:56:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB\n L1-1 2026-04-25T13:56:15Z net.beacon dst_ip=203.0.113.5 interval_s=30\n L1-2 2026-04-25T13:56:30Z auth.privilege_grant user=alice role=admin\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"escalate\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Combined endpoint and network compromise signals \\u2014 page on-call.\"}"}], "task_id": "stage1_basic", "seed": 104795, "ground_truth": "escalate"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:21:00Z net.beacon dst_ip=10.0.150.67 interval_s=30\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage1_basic", "seed": 104796, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: phishing: 1 event(s); first=email.link_clicked\nLOG_WINDOW:\n L1-0 2026-04-25T19:27:00Z email.link_clicked url=https://login-update.click/secure user=alice\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage1_basic", "seed": 104797, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 3 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T16:36:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB\n L1-1 2026-04-25T16:36:15Z net.beacon dst_ip=203.0.113.5 interval_s=30\n L1-2 2026-04-25T16:36:30Z auth.privilege_grant user=bob role=admin\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"escalate\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Combined endpoint and network compromise signals \\u2014 page on-call.\"}"}], "task_id": "stage1_basic", "seed": 104798, "ground_truth": "escalate"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 1 event(s); first=edr.behavior_match\nLOG_WINDOW:\n L1-0 2026-04-25T05:52:00Z edr.behavior_match severity=high rule_id=EDR-6082 host=host-041\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage1_basic", "seed": 104799, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 2 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T00:04:00Z proc.lolbin_use process=powershell.exe parent_process=winword.exe cmd=-enc AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n L1-1 2026-04-25T00:04:05Z file.write path=C:\\Users\\Public\\tmp.exe\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage1_basic", "seed": 104800, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 1 event(s); first=net.port_scan_hit\nLOG_WINDOW:\n L1-0 2026-04-25T08:26:00Z net.port_scan_hit src_ip=203.0.113.229 port=445\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage1_basic", "seed": 104801, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: brute_force: 7 event(s); first=auth.login_failure\nLOG_WINDOW:\n L1-0 2026-04-25T06:05:00Z auth.login_failure user=root src_ip=203.0.113.223\n L1-1 2026-04-25T06:05:05Z auth.login_failure user=root src_ip=203.0.113.117\n L1-2 2026-04-25T06:05:10Z auth.login_failure user=root src_ip=203.0.113.221\n L1-3 2026-04-25T06:05:15Z auth.login_failure user=root src_ip=203.0.113.44\n L1-4 2026-04-25T06:05:20Z auth.login_failure user=root src_ip=203.0.113.95\n L1-5 2026-04-25T06:05:25Z auth.login_failure user=root src_ip=203.0.113.103\n L1-6 2026-04-25T06:05:30Z auth.login_failure user=root src_ip=203.0.113.250\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage1_basic", "seed": 104802, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 2 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T21:19:00Z proc.lolbin_use process=powershell.exe parent_process=winword.exe cmd=-enc AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n L1-1 2026-04-25T21:19:05Z file.write path=C:\\Users\\Public\\tmp.exe\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage1_basic", "seed": 104803, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: brute_force: 8 event(s); first=auth.login_failure\nLOG_WINDOW:\n L1-0 2026-04-25T12:10:00Z auth.login_failure user=root src_ip=203.0.113.53\n L1-1 2026-04-25T12:10:05Z auth.login_failure user=root src_ip=203.0.113.145\n L1-2 2026-04-25T12:10:10Z auth.login_failure user=root src_ip=203.0.113.35\n L1-3 2026-04-25T12:10:15Z auth.login_failure user=root src_ip=203.0.113.124\n L1-4 2026-04-25T12:10:20Z auth.login_failure user=root src_ip=203.0.113.90\n L1-5 2026-04-25T12:10:25Z auth.login_failure user=root src_ip=203.0.113.87\n L1-6 2026-04-25T12:10:30Z auth.login_failure user=root src_ip=203.0.113.219\n L1-7 2026-04-25T12:10:35Z auth.login_failure user=root src_ip=203.0.113.76\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage1_basic", "seed": 104804, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T01:43:00Z net.beacon dst_ip=185.220.101.7 interval_s=30\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage1_basic", "seed": 104805, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 3 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T12:10:00Z auth.login_success user=bob src_ip=10.0.0.203\n L1-1 2026-04-25T19:01:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n L1-2 2026-04-25T19:01:05Z file.write path=C:\\Users\\Public\\tmp.exe\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-1\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage2_multi", "seed": 105011, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 3 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T03:53:00Z auth.login_success user=bob src_ip=10.0.0.99\n L1-1 2026-04-25T16:17:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n L1-2 2026-04-25T16:17:05Z file.write path=C:\\Users\\Public\\svc.exe\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-1\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage2_multi", "seed": 105012, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 2 event(s); first=net.port_scan_hit\nLOG_WINDOW:\n L1-0 2026-04-25T12:34:00Z net.port_scan_hit src_ip=203.0.113.134 port=22\n L1-1 2026-04-25T14:14:00Z net.dns_query domain=google.com\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage2_multi", "seed": 105013, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 2 event(s); first=net.dns_query\nLOG_WINDOW:\n L1-0 2026-04-25T03:52:00Z net.dns_query domain=internal.corp\n L1-1 2026-04-25T10:03:00Z net.beacon dst_ip=10.0.213.232 interval_s=60\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-1\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage2_multi", "seed": 105014, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 2 event(s); first=edr.behavior_match\nLOG_WINDOW:\n L1-0 2026-04-25T17:09:00Z edr.behavior_match severity=high rule_id=EDR-1664 host=host-026\n L1-1 2026-04-25T19:46:00Z auth.login_success user=alice src_ip=10.0.0.52\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage2_multi", "seed": 105015, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 2 event(s); first=net.dns_query\nLOG_WINDOW:\n L1-0 2026-04-25T08:07:00Z net.dns_query domain=google.com\n L1-1 2026-04-25T19:32:00Z edr.behavior_match severity=high rule_id=EDR-7532 host=host-029\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-1\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage2_multi", "seed": 105016, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 2 event(s); first=net.port_scan_hit\nLOG_WINDOW:\n L1-0 2026-04-25T09:53:00Z net.port_scan_hit src_ip=203.0.113.220 port=445\n L1-1 2026-04-25T17:50:00Z auth.login_success user=dave src_ip=10.0.0.19\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage2_multi", "seed": 105017, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 3 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T00:34:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n L1-1 2026-04-25T00:34:05Z file.write path=C:\\Users\\Public\\payload.exe\n L1-2 2026-04-25T14:54:00Z auth.login_success user=carol src_ip=10.0.0.158\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage2_multi", "seed": 105018, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 2 event(s); first=net.outbound_connection\nLOG_WINDOW:\n L1-0 2026-04-25T08:24:00Z net.outbound_connection dst_ip=10.0.81.34 bytes_out=95577\n L1-1 2026-04-25T18:33:00Z edr.behavior_match severity=high rule_id=EDR-2712 host=host-037\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-1\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage2_multi", "seed": 105019, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: c2_beacon: 2 event(s); first=net.outbound_connection\nLOG_WINDOW:\n L1-0 2026-04-25T04:24:00Z net.outbound_connection dst_ip=10.0.241.250 bytes_out=76569\n L1-1 2026-04-25T12:39:00Z net.beacon dst_ip=185.220.101.7 interval_s=90\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-1\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage2_multi", "seed": 105020, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 4 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T03:52:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB\n L1-1 2026-04-25T03:52:15Z net.beacon dst_ip=203.0.113.5 interval_s=30\n L1-2 2026-04-25T03:52:30Z auth.privilege_grant user=alice role=admin\n L1-3 2026-04-25T10:42:00Z net.outbound_connection dst_ip=10.0.200.75 bytes_out=88457\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"escalate\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Combined endpoint and network compromise signals \\u2014 page on-call.\"}"}], "task_id": "stage2_multi", "seed": 105021, "ground_truth": "escalate"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: phishing: 2 event(s); first=email.link_clicked\nLOG_WINDOW:\n L1-0 2026-04-25T01:59:00Z email.link_clicked url=https://login-update.ru/secure user=carol\n L1-1 2026-04-25T10:45:00Z net.dns_query domain=github.com\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage2_multi", "seed": 105022, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 2 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T20:22:00Z net.beacon dst_ip=10.0.197.9 interval_s=30\n L1-1 2026-04-25T20:55:00Z auth.login_success user=bob src_ip=10.0.0.135\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage2_multi", "seed": 105023, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 3 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T04:31:00Z auth.login_success user=dave src_ip=10.0.0.23\n L1-1 2026-04-25T15:16:00Z proc.lolbin_use process=powershell.exe parent_process=winword.exe cmd=-enc AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n L1-2 2026-04-25T15:16:05Z file.write path=C:\\Users\\Public\\svc.exe\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-1\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage2_multi", "seed": 105024, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 2 event(s); first=net.outbound_connection\nLOG_WINDOW:\n L1-0 2026-04-25T14:53:00Z net.outbound_connection dst_ip=10.0.126.34 bytes_out=16101\n L1-1 2026-04-25T19:25:00Z net.beacon dst_ip=10.0.228.184 interval_s=90\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-1\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage2_multi", "seed": 105025, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 4 event(s); first=net.dns_query\nLOG_WINDOW:\n L1-0 2026-04-25T11:39:00Z net.dns_query domain=internal.corp\n L1-1 2026-04-25T18:57:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB\n L1-2 2026-04-25T18:57:15Z net.beacon dst_ip=203.0.113.5 interval_s=30\n L1-3 2026-04-25T18:57:30Z auth.privilege_grant user=alice role=admin\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"escalate\", \"cited_log_id\": \"L1-1\", \"rationale\": \"Combined endpoint and network compromise signals \\u2014 page on-call.\"}"}], "task_id": "stage2_multi", "seed": 105026, "ground_truth": "escalate"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 4 event(s); first=net.dns_query\nLOG_WINDOW:\n L1-0 2026-04-25T01:19:00Z net.dns_query domain=internal.corp\n L1-1 2026-04-25T22:42:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB\n L1-2 2026-04-25T22:42:15Z net.beacon dst_ip=203.0.113.5 interval_s=30\n L1-3 2026-04-25T22:42:30Z auth.privilege_grant user=bob role=admin\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"escalate\", \"cited_log_id\": \"L1-1\", \"rationale\": \"Combined endpoint and network compromise signals \\u2014 page on-call.\"}"}], "task_id": "stage2_multi", "seed": 105027, "ground_truth": "escalate"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 2 event(s); first=net.dns_query\nLOG_WINDOW:\n L1-0 2026-04-25T01:28:00Z net.dns_query domain=google.com\n L1-1 2026-04-25T11:21:00Z net.beacon dst_ip=10.0.124.77 interval_s=60\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-1\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage2_multi", "seed": 105028, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: brute_force: 10 event(s); first=auth.login_failure\nLOG_WINDOW:\n L1-0 2026-04-25T00:28:00Z auth.login_failure user=admin src_ip=203.0.113.131\n L1-1 2026-04-25T00:28:05Z auth.login_failure user=admin src_ip=203.0.113.122\n L1-2 2026-04-25T00:28:10Z auth.login_failure user=admin src_ip=203.0.113.219\n L1-3 2026-04-25T00:28:15Z auth.login_failure user=admin src_ip=203.0.113.161\n L1-4 2026-04-25T00:28:20Z auth.login_failure user=admin src_ip=203.0.113.62\n L1-5 2026-04-25T00:28:25Z auth.login_failure user=admin src_ip=203.0.113.90\n L1-6 2026-04-25T00:28:30Z auth.login_failure user=admin src_ip=203.0.113.198\n L1-7 2026-04-25T00:28:35Z auth.login_failure user=admin src_ip=203.0.113.137\n L1-8 2026-04-25T00:28:40Z auth.login_failure user=admin src_ip=203.0.113.44\n L1-9 2026-04-25T16:25:00Z net.dns_query domain=google.com\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage2_multi", "seed": 105029, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 2 event(s); first=edr.behavior_match\nLOG_WINDOW:\n L1-0 2026-04-25T15:42:00Z edr.behavior_match severity=high rule_id=EDR-2076 host=host-049\n L1-1 2026-04-25T20:38:00Z auth.login_success user=bob src_ip=10.0.0.114\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage2_multi", "seed": 105030, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 2 event(s); first=net.outbound_connection\nLOG_WINDOW:\n L1-0 2026-04-25T13:55:00Z net.outbound_connection dst_ip=10.0.48.213 bytes_out=33415\n L1-1 2026-04-25T22:49:00Z auth.login_success user=alice src_ip=10.0.0.82\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"dismiss\", \"cited_log_id\": \"L1-1\", \"rationale\": \"No malicious indicators in the log window.\"}"}], "task_id": "stage2_multi", "seed": 105031, "ground_truth": "dismiss"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 2 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T04:24:00Z auth.login_success user=erin src_ip=10.0.0.131\n L1-1 2026-04-25T18:22:00Z auth.login_success user=dave src_ip=10.0.0.244\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"dismiss\", \"cited_log_id\": \"L1-1\", \"rationale\": \"No malicious indicators in the log window.\"}"}], "task_id": "stage2_multi", "seed": 105032, "ground_truth": "dismiss"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 2 event(s); first=net.port_scan_hit\nLOG_WINDOW:\n L1-0 2026-04-25T09:07:00Z net.port_scan_hit src_ip=203.0.113.127 port=5985\n L1-1 2026-04-25T14:37:00Z auth.login_success user=dave src_ip=10.0.0.8\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage2_multi", "seed": 105033, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: brute_force: 6 event(s); first=auth.login_failure\nLOG_WINDOW:\n L1-0 2026-04-25T03:09:00Z auth.login_failure user=service_acct src_ip=203.0.113.202\n L1-1 2026-04-25T03:09:05Z auth.login_failure user=service_acct src_ip=203.0.113.37\n L1-2 2026-04-25T03:09:10Z auth.login_failure user=service_acct src_ip=203.0.113.120\n L1-3 2026-04-25T03:09:15Z auth.login_failure user=service_acct src_ip=203.0.113.166\n L1-4 2026-04-25T03:09:20Z auth.login_failure user=service_acct src_ip=203.0.113.36\n L1-5 2026-04-25T03:53:00Z net.dns_query domain=google.com\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage2_multi", "seed": 105034, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 2 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T12:52:00Z auth.login_success user=dave src_ip=10.0.0.95\n L1-1 2026-04-25T13:36:00Z net.outbound_connection dst_ip=10.0.148.112 bytes_out=63213\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"dismiss\", \"cited_log_id\": \"L1-1\", \"rationale\": \"No malicious indicators in the log window.\"}"}], "task_id": "stage2_multi", "seed": 105035, "ground_truth": "dismiss"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 3 event(s); first=net.outbound_connection\nLOG_WINDOW:\n L1-0 2026-04-25T21:04:00Z net.outbound_connection dst_ip=10.0.107.239 bytes_out=9359\n L1-1 2026-04-25T22:25:00Z proc.lolbin_use process=powershell.exe parent_process=chrome.exe cmd=-enc AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n L1-2 2026-04-25T22:25:05Z file.write path=C:\\Users\\Public\\payload.exe\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-1\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage2_multi", "seed": 105036, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 2 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T14:14:00Z net.beacon dst_ip=10.0.160.155 interval_s=60\n L1-1 2026-04-25T17:14:00Z net.outbound_connection dst_ip=10.0.48.40 bytes_out=17692\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage2_multi", "seed": 105037, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 2 event(s); first=net.outbound_connection\nLOG_WINDOW:\n L1-0 2026-04-25T06:23:00Z net.outbound_connection dst_ip=10.0.42.159 bytes_out=15169\n L1-1 2026-04-25T18:39:00Z edr.behavior_match severity=high rule_id=EDR-4913 host=host-001\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-1\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage2_multi", "seed": 105038, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: brute_force: 10 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T10:27:00Z auth.login_success user=alice src_ip=10.0.0.124\n L1-1 2026-04-25T19:30:00Z auth.login_failure user=alice src_ip=203.0.113.73\n L1-2 2026-04-25T19:30:05Z auth.login_failure user=alice src_ip=203.0.113.119\n L1-3 2026-04-25T19:30:10Z auth.login_failure user=alice src_ip=203.0.113.94\n L1-4 2026-04-25T19:30:15Z auth.login_failure user=alice src_ip=203.0.113.213\n L1-5 2026-04-25T19:30:20Z auth.login_failure user=alice src_ip=203.0.113.21\n L1-6 2026-04-25T19:30:25Z auth.login_failure user=alice src_ip=203.0.113.155\n L1-7 2026-04-25T19:30:30Z auth.login_failure user=alice src_ip=203.0.113.21\n L1-8 2026-04-25T19:30:35Z auth.login_failure user=alice src_ip=203.0.113.21\n L1-9 2026-04-25T19:30:40Z auth.login_failure user=alice src_ip=203.0.113.227\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-1\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage2_multi", "seed": 105039, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 2 event(s); first=net.dns_query\nLOG_WINDOW:\n L1-0 2026-04-25T04:27:00Z net.dns_query domain=internal.corp\n L1-1 2026-04-25T05:51:00Z net.port_scan_hit src_ip=203.0.113.62 port=22\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-1\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage2_multi", "seed": 105040, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 4 event(s); first=net.dns_query\nLOG_WINDOW:\n L1-0 2026-04-25T06:20:00Z net.dns_query domain=github.com\n L1-1 2026-04-25T09:29:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB\n L1-2 2026-04-25T09:29:15Z net.beacon dst_ip=203.0.113.5 interval_s=30\n L1-3 2026-04-25T09:29:30Z auth.privilege_grant user=bob role=admin\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"escalate\", \"cited_log_id\": \"L1-1\", \"rationale\": \"Combined endpoint and network compromise signals \\u2014 page on-call.\"}"}], "task_id": "stage2_multi", "seed": 105041, "ground_truth": "escalate"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 2 event(s); first=net.dns_query\nLOG_WINDOW:\n L1-0 2026-04-25T01:59:00Z net.dns_query domain=google.com\n L1-1 2026-04-25T08:03:00Z net.port_scan_hit src_ip=203.0.113.70 port=23\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-1\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage2_multi", "seed": 105042, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 4 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T04:48:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB\n L1-1 2026-04-25T04:48:15Z net.beacon dst_ip=203.0.113.5 interval_s=30\n L1-2 2026-04-25T04:48:30Z auth.privilege_grant user=alice role=admin\n L1-3 2026-04-25T08:00:00Z auth.login_success user=bob src_ip=10.0.0.175\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"escalate\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Combined endpoint and network compromise signals \\u2014 page on-call.\"}"}], "task_id": "stage2_multi", "seed": 105043, "ground_truth": "escalate"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 2 event(s); first=net.port_scan_hit\nLOG_WINDOW:\n L1-0 2026-04-25T14:43:00Z net.port_scan_hit src_ip=203.0.113.80 port=22\n L1-1 2026-04-25T17:05:00Z net.dns_query domain=github.com\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage2_multi", "seed": 105044, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: phishing: 2 event(s); first=net.dns_query\nLOG_WINDOW:\n L1-0 2026-04-25T07:21:00Z net.dns_query domain=google.com\n L1-1 2026-04-25T11:28:00Z email.link_clicked url=https://login-update.xyz/secure user=alice\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-1\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage2_multi", "seed": 105045, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 2 event(s); first=net.dns_query\nLOG_WINDOW:\n L1-0 2026-04-25T11:39:00Z net.dns_query domain=internal.corp\n L1-1 2026-04-25T13:37:00Z auth.login_success user=dave src_ip=10.0.0.153\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"dismiss\", \"cited_log_id\": \"L1-1\", \"rationale\": \"No malicious indicators in the log window.\"}"}], "task_id": "stage2_multi", "seed": 105046, "ground_truth": "dismiss"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 3 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T03:22:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n L1-1 2026-04-25T03:22:05Z file.write path=C:\\Users\\Public\\payload.exe\n L1-2 2026-04-25T12:12:00Z net.dns_query domain=github.com\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage2_multi", "seed": 105047, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 4 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T07:39:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB\n L1-1 2026-04-25T07:39:15Z net.beacon dst_ip=203.0.113.5 interval_s=30\n L1-2 2026-04-25T07:39:30Z auth.privilege_grant user=bob role=admin\n L1-3 2026-04-25T14:18:00Z net.outbound_connection dst_ip=10.0.113.236 bytes_out=89518\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"escalate\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Combined endpoint and network compromise signals \\u2014 page on-call.\"}"}], "task_id": "stage2_multi", "seed": 105048, "ground_truth": "escalate"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 2 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T04:20:00Z auth.login_success user=carol src_ip=10.0.0.172\n L1-1 2026-04-25T09:05:00Z edr.behavior_match severity=high rule_id=EDR-1199 host=host-040\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-1\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage2_multi", "seed": 105049, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: brute_force: 7 event(s); first=auth.login_failure\nLOG_WINDOW:\n L1-0 2026-04-25T16:32:00Z auth.login_failure user=root src_ip=203.0.113.184\n L1-1 2026-04-25T16:32:05Z auth.login_failure user=root src_ip=203.0.113.67\n L1-2 2026-04-25T16:32:10Z auth.login_failure user=root src_ip=203.0.113.55\n L1-3 2026-04-25T16:32:15Z auth.login_failure user=root src_ip=203.0.113.39\n L1-4 2026-04-25T16:32:20Z auth.login_failure user=root src_ip=203.0.113.29\n L1-5 2026-04-25T16:32:25Z auth.login_failure user=root src_ip=203.0.113.45\n L1-6 2026-04-25T16:39:00Z auth.login_success user=carol src_ip=10.0.0.11\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-6\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage2_multi", "seed": 105050, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: brute_force: 7 event(s); first=auth.login_failure\nLOG_WINDOW:\n L1-0 2026-04-25T14:41:00Z auth.login_failure user=admin src_ip=203.0.113.161\n L1-1 2026-04-25T14:41:05Z auth.login_failure user=admin src_ip=203.0.113.193\n L1-2 2026-04-25T14:41:10Z auth.login_failure user=admin src_ip=203.0.113.187\n L1-3 2026-04-25T14:41:15Z auth.login_failure user=admin src_ip=203.0.113.93\n L1-4 2026-04-25T14:41:20Z auth.login_failure user=admin src_ip=203.0.113.154\n L1-5 2026-04-25T14:41:25Z auth.login_failure user=admin src_ip=203.0.113.108\n L1-6 2026-04-25T15:54:00Z net.dns_query domain=github.com\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage2_multi", "seed": 105051, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: phishing: 2 event(s); first=net.dns_query\nLOG_WINDOW:\n L1-0 2026-04-25T09:07:00Z net.dns_query domain=google.com\n L1-1 2026-04-25T17:31:00Z email.link_clicked url=https://login-update.xyz/secure user=bob\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-1\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage2_multi", "seed": 105052, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: phishing: 2 event(s); first=email.link_clicked\nLOG_WINDOW:\n L1-0 2026-04-25T02:16:00Z email.link_clicked url=https://login-update.top/secure user=bob\n L1-1 2026-04-25T21:50:00Z auth.login_success user=alice src_ip=10.0.0.149\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage2_multi", "seed": 105053, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 4 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T06:43:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB\n L1-1 2026-04-25T06:43:15Z net.beacon dst_ip=203.0.113.5 interval_s=30\n L1-2 2026-04-25T06:43:30Z auth.privilege_grant user=bob role=admin\n L1-3 2026-04-25T19:50:00Z net.outbound_connection dst_ip=10.0.41.11 bytes_out=86327\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"escalate\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Combined endpoint and network compromise signals \\u2014 page on-call.\"}"}], "task_id": "stage2_multi", "seed": 105054, "ground_truth": "escalate"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 2 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T00:34:00Z auth.login_success user=bob src_ip=10.0.0.104\n L1-1 2026-04-25T01:18:00Z net.port_scan_hit src_ip=203.0.113.76 port=5985\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-1\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage2_multi", "seed": 105055, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 3 event(s); first=net.outbound_connection\nLOG_WINDOW:\n L1-0 2026-04-25T03:13:00Z net.outbound_connection dst_ip=10.0.220.27 bytes_out=11950\n L1-1 2026-04-25T06:03:00Z proc.lolbin_use process=powershell.exe parent_process=excel.exe cmd=-enc AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n L1-2 2026-04-25T06:03:05Z file.write path=C:\\Users\\Public\\tmp.exe\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-1\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage2_multi", "seed": 105056, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 4 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T00:02:00Z auth.login_success user=bob src_ip=10.0.0.227\n L1-1 2026-04-25T11:25:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB\n L1-2 2026-04-25T11:25:15Z net.beacon dst_ip=203.0.113.5 interval_s=30\n L1-3 2026-04-25T11:25:30Z auth.privilege_grant user=alice role=admin\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"escalate\", \"cited_log_id\": \"L1-1\", \"rationale\": \"Combined endpoint and network compromise signals \\u2014 page on-call.\"}"}], "task_id": "stage2_multi", "seed": 105057, "ground_truth": "escalate"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 4 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T02:55:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB\n L1-1 2026-04-25T02:55:15Z net.beacon dst_ip=203.0.113.5 interval_s=30\n L1-2 2026-04-25T02:55:30Z auth.privilege_grant user=alice role=admin\n L1-3 2026-04-25T19:09:00Z net.outbound_connection dst_ip=10.0.32.98 bytes_out=23799\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"escalate\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Combined endpoint and network compromise signals \\u2014 page on-call.\"}"}], "task_id": "stage2_multi", "seed": 105058, "ground_truth": "escalate"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: brute_force: 10 event(s); first=net.dns_query\nLOG_WINDOW:\n L1-0 2026-04-25T10:36:00Z net.dns_query domain=google.com\n L1-1 2026-04-25T11:47:00Z auth.login_failure user=admin src_ip=203.0.113.67\n L1-2 2026-04-25T11:47:05Z auth.login_failure user=admin src_ip=203.0.113.49\n L1-3 2026-04-25T11:47:10Z auth.login_failure user=admin src_ip=203.0.113.150\n L1-4 2026-04-25T11:47:15Z auth.login_failure user=admin src_ip=203.0.113.59\n L1-5 2026-04-25T11:47:20Z auth.login_failure user=admin src_ip=203.0.113.227\n L1-6 2026-04-25T11:47:25Z auth.login_failure user=admin src_ip=203.0.113.248\n L1-7 2026-04-25T11:47:30Z auth.login_failure user=admin src_ip=203.0.113.211\n L1-8 2026-04-25T11:47:35Z auth.login_failure user=admin src_ip=203.0.113.150\n L1-9 2026-04-25T11:47:40Z auth.login_failure user=admin src_ip=203.0.113.91\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-1\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage2_multi", "seed": 105059, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: c2_beacon: 2 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T01:55:00Z net.beacon dst_ip=185.220.101.7 interval_s=60\n L1-1 2026-04-25T19:59:00Z auth.login_success user=dave src_ip=10.0.0.216\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage2_multi", "seed": 105060, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 2 event(s); first=net.dns_query\nLOG_WINDOW:\n L1-0 2026-04-25T04:08:00Z net.dns_query domain=github.com\n L1-1 2026-04-25T14:06:00Z auth.login_success user=carol src_ip=10.0.0.137\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"dismiss\", \"cited_log_id\": \"L1-1\", \"rationale\": \"No malicious indicators in the log window.\"}"}], "task_id": "stage2_multi", "seed": 105061, "ground_truth": "dismiss"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: brute_force: 6 event(s); first=net.outbound_connection\nLOG_WINDOW:\n L1-0 2026-04-25T05:37:00Z net.outbound_connection dst_ip=10.0.177.34 bytes_out=65545\n L1-1 2026-04-25T19:57:00Z auth.login_failure user=root src_ip=203.0.113.29\n L1-2 2026-04-25T19:57:05Z auth.login_failure user=root src_ip=203.0.113.51\n L1-3 2026-04-25T19:57:10Z auth.login_failure user=root src_ip=203.0.113.167\n L1-4 2026-04-25T19:57:15Z auth.login_failure user=root src_ip=203.0.113.90\n L1-5 2026-04-25T19:57:20Z auth.login_failure user=root src_ip=203.0.113.156\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-1\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage2_multi", "seed": 105062, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 2 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T10:22:00Z auth.login_success user=carol src_ip=10.0.0.130\n L1-1 2026-04-25T20:09:00Z edr.behavior_match severity=high rule_id=EDR-5369 host=host-002\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-1\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage2_multi", "seed": 105063, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: phishing: 2 event(s); first=email.link_clicked\nLOG_WINDOW:\n L1-0 2026-04-25T19:31:00Z email.link_clicked url=https://login-update.ru/secure user=alice\n L1-1 2026-04-25T22:05:00Z net.outbound_connection dst_ip=10.0.82.106 bytes_out=34972\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage2_multi", "seed": 105064, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 2 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T05:59:00Z auth.login_success user=alice src_ip=10.0.0.178\n L1-1 2026-04-25T06:16:00Z edr.behavior_match severity=high rule_id=EDR-5126 host=host-043\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-1\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage2_multi", "seed": 105065, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: phishing: 2 event(s); first=net.dns_query\nLOG_WINDOW:\n L1-0 2026-04-25T03:30:00Z net.dns_query domain=internal.corp\n L1-1 2026-04-25T04:50:00Z email.link_clicked url=https://login-update.ru/secure user=bob\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-1\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage2_multi", "seed": 105066, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 2 event(s); first=net.port_scan_hit\nLOG_WINDOW:\n L1-0 2026-04-25T01:10:00Z net.port_scan_hit src_ip=203.0.113.193 port=445\n L1-1 2026-04-25T22:28:00Z auth.login_success user=bob src_ip=10.0.0.90\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage2_multi", "seed": 105067, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: c2_beacon: 2 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T06:20:00Z net.beacon dst_ip=198.51.100.42 interval_s=60\n L1-1 2026-04-25T20:00:00Z net.outbound_connection dst_ip=10.0.28.41 bytes_out=45957\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage2_multi", "seed": 105068, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 2 event(s); first=edr.behavior_match\nLOG_WINDOW:\n L1-0 2026-04-25T01:33:00Z edr.behavior_match severity=high rule_id=EDR-5099 host=host-021\n L1-1 2026-04-25T20:58:00Z net.dns_query domain=google.com\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage2_multi", "seed": 105069, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 3 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T07:01:00Z proc.lolbin_use process=powershell.exe parent_process=winword.exe cmd=-enc AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n L1-1 2026-04-25T07:01:05Z file.write path=C:\\Users\\Public\\svc.exe\n L1-2 2026-04-25T21:56:00Z net.outbound_connection dst_ip=10.0.86.122 bytes_out=41838\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage2_multi", "seed": 105070, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 4 event(s); first=net.dns_query\nLOG_WINDOW:\n L1-0 2026-04-25T05:32:00Z net.dns_query domain=github.com\n L1-1 2026-04-25T11:07:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB\n L1-2 2026-04-25T11:07:15Z net.beacon dst_ip=203.0.113.5 interval_s=30\n L1-3 2026-04-25T11:07:30Z auth.privilege_grant user=bob role=admin\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"escalate\", \"cited_log_id\": \"L1-1\", \"rationale\": \"Combined endpoint and network compromise signals \\u2014 page on-call.\"}"}], "task_id": "stage2_multi", "seed": 105071, "ground_truth": "escalate"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 2 event(s); first=edr.behavior_match\nLOG_WINDOW:\n L1-0 2026-04-25T18:20:00Z edr.behavior_match severity=high rule_id=EDR-3114 host=host-008\n L1-1 2026-04-25T20:12:00Z auth.login_success user=bob src_ip=10.0.0.229\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage2_multi", "seed": 105072, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 4 event(s); first=net.dns_query\nLOG_WINDOW:\n L1-0 2026-04-25T00:14:00Z net.dns_query domain=internal.corp\n L1-1 2026-04-25T22:55:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB\n L1-2 2026-04-25T22:55:15Z net.beacon dst_ip=203.0.113.5 interval_s=30\n L1-3 2026-04-25T22:55:30Z auth.privilege_grant user=alice role=admin\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"escalate\", \"cited_log_id\": \"L1-1\", \"rationale\": \"Combined endpoint and network compromise signals \\u2014 page on-call.\"}"}], "task_id": "stage2_multi", "seed": 105073, "ground_truth": "escalate"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 2 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T11:00:00Z auth.login_success user=bob src_ip=10.0.0.113\n L1-1 2026-04-25T13:15:00Z net.dns_query domain=github.com\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"dismiss\", \"cited_log_id\": \"L1-1\", \"rationale\": \"No malicious indicators in the log window.\"}"}], "task_id": "stage2_multi", "seed": 105074, "ground_truth": "dismiss"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 2 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T06:45:00Z net.beacon dst_ip=10.0.38.204 interval_s=30\n L1-1 2026-04-25T17:28:00Z net.outbound_connection dst_ip=10.0.7.143 bytes_out=63686\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage2_multi", "seed": 105075, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 2 event(s); first=net.port_scan_hit\nLOG_WINDOW:\n L1-0 2026-04-25T11:47:00Z net.port_scan_hit src_ip=203.0.113.42 port=23\n L1-1 2026-04-25T21:38:00Z net.dns_query domain=internal.corp\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage2_multi", "seed": 105076, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: brute_force: 7 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T14:44:00Z auth.login_success user=dave src_ip=10.0.0.66\n L1-1 2026-04-25T18:11:00Z auth.login_failure user=service_acct src_ip=203.0.113.169\n L1-2 2026-04-25T18:11:05Z auth.login_failure user=service_acct src_ip=203.0.113.26\n L1-3 2026-04-25T18:11:10Z auth.login_failure user=service_acct src_ip=203.0.113.45\n L1-4 2026-04-25T18:11:15Z auth.login_failure user=service_acct src_ip=203.0.113.141\n L1-5 2026-04-25T18:11:20Z auth.login_failure user=service_acct src_ip=203.0.113.168\n L1-6 2026-04-25T18:11:25Z auth.login_failure user=service_acct src_ip=203.0.113.236\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-1\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage2_multi", "seed": 105077, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 4 event(s); first=net.outbound_connection\nLOG_WINDOW:\n L1-0 2026-04-25T19:48:00Z net.outbound_connection dst_ip=10.0.214.184 bytes_out=13984\n L1-1 2026-04-25T20:25:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB\n L1-2 2026-04-25T20:25:15Z net.beacon dst_ip=203.0.113.5 interval_s=30\n L1-3 2026-04-25T20:25:30Z auth.privilege_grant user=alice role=admin\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"escalate\", \"cited_log_id\": \"L1-1\", \"rationale\": \"Combined endpoint and network compromise signals \\u2014 page on-call.\"}"}], "task_id": "stage2_multi", "seed": 105078, "ground_truth": "escalate"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: brute_force: 9 event(s); first=auth.login_failure\nLOG_WINDOW:\n L1-0 2026-04-25T11:54:00Z auth.login_failure user=service_acct src_ip=203.0.113.54\n L1-1 2026-04-25T11:54:05Z auth.login_failure user=service_acct src_ip=203.0.113.189\n L1-2 2026-04-25T11:54:10Z auth.login_failure user=service_acct src_ip=203.0.113.83\n L1-3 2026-04-25T11:54:15Z auth.login_failure user=service_acct src_ip=203.0.113.179\n L1-4 2026-04-25T11:54:20Z auth.login_failure user=service_acct src_ip=203.0.113.2\n L1-5 2026-04-25T11:54:25Z auth.login_failure user=service_acct src_ip=203.0.113.168\n L1-6 2026-04-25T11:54:30Z auth.login_failure user=service_acct src_ip=203.0.113.143\n L1-7 2026-04-25T11:54:35Z auth.login_failure user=service_acct src_ip=203.0.113.183\n L1-8 2026-04-25T12:23:00Z auth.login_success user=dave src_ip=10.0.0.152\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-8\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage2_multi", "seed": 105079, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: c2_beacon: 2 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T03:30:00Z net.beacon dst_ip=198.51.100.42 interval_s=30\n L1-1 2026-04-25T14:30:00Z net.dns_query domain=github.com\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage2_multi", "seed": 105080, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 2 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T13:46:00Z auth.login_success user=carol src_ip=10.0.0.71\n L1-1 2026-04-25T19:56:00Z edr.behavior_match severity=high rule_id=EDR-2222 host=host-014\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-1\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage2_multi", "seed": 105081, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 3 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T14:50:00Z auth.login_success user=carol src_ip=10.0.0.241\n L1-1 2026-04-25T15:06:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n L1-2 2026-04-25T15:06:05Z file.write path=C:\\Users\\Public\\tmp.exe\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-1\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage2_multi", "seed": 105082, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 4 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T03:09:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB\n L1-1 2026-04-25T03:09:15Z net.beacon dst_ip=203.0.113.5 interval_s=30\n L1-2 2026-04-25T03:09:30Z auth.privilege_grant user=bob role=admin\n L1-3 2026-04-25T05:01:00Z net.outbound_connection dst_ip=10.0.7.99 bytes_out=1657\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"escalate\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Combined endpoint and network compromise signals \\u2014 page on-call.\"}"}], "task_id": "stage2_multi", "seed": 105083, "ground_truth": "escalate"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: phishing: 2 event(s); first=net.outbound_connection\nLOG_WINDOW:\n L1-0 2026-04-25T18:07:00Z net.outbound_connection dst_ip=10.0.108.233 bytes_out=15483\n L1-1 2026-04-25T21:45:00Z email.link_clicked url=https://login-update.top/secure user=alice\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-1\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage2_multi", "seed": 105084, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 3 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T07:06:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n L1-1 2026-04-25T07:06:05Z file.write path=C:\\Users\\Public\\payload.exe\n L1-2 2026-04-25T08:51:00Z net.outbound_connection dst_ip=10.0.117.211 bytes_out=44337\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage2_multi", "seed": 105085, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 3 event(s); first=net.dns_query\nLOG_WINDOW:\n L1-0 2026-04-25T03:30:00Z net.dns_query domain=google.com\n L1-1 2026-04-25T04:01:00Z proc.lolbin_use process=powershell.exe parent_process=excel.exe cmd=-enc AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n L1-2 2026-04-25T04:01:05Z file.write path=C:\\Users\\Public\\svc.exe\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-1\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage2_multi", "seed": 105086, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 2 event(s); first=net.outbound_connection\nLOG_WINDOW:\n L1-0 2026-04-25T09:14:00Z net.outbound_connection dst_ip=10.0.64.122 bytes_out=50541\n L1-1 2026-04-25T19:46:00Z auth.login_success user=dave src_ip=10.0.0.88\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"dismiss\", \"cited_log_id\": \"L1-1\", \"rationale\": \"No malicious indicators in the log window.\"}"}], "task_id": "stage2_multi", "seed": 105087, "ground_truth": "dismiss"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: c2_beacon: 2 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T04:26:00Z net.beacon dst_ip=203.0.113.5 interval_s=90\n L1-1 2026-04-25T22:19:00Z auth.login_success user=carol src_ip=10.0.0.128\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage2_multi", "seed": 105088, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 2 event(s); first=net.outbound_connection\nLOG_WINDOW:\n L1-0 2026-04-25T07:39:00Z net.outbound_connection dst_ip=10.0.63.135 bytes_out=81901\n L1-1 2026-04-25T21:51:00Z auth.login_success user=erin src_ip=10.0.0.16\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"dismiss\", \"cited_log_id\": \"L1-1\", \"rationale\": \"No malicious indicators in the log window.\"}"}], "task_id": "stage2_multi", "seed": 105089, "ground_truth": "dismiss"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: brute_force: 6 event(s); first=net.outbound_connection\nLOG_WINDOW:\n L1-0 2026-04-25T07:08:00Z net.outbound_connection dst_ip=10.0.56.168 bytes_out=15140\n L1-1 2026-04-25T15:34:00Z auth.login_failure user=root src_ip=203.0.113.79\n L1-2 2026-04-25T15:34:05Z auth.login_failure user=root src_ip=203.0.113.146\n L1-3 2026-04-25T15:34:10Z auth.login_failure user=root src_ip=203.0.113.55\n L1-4 2026-04-25T15:34:15Z auth.login_failure user=root src_ip=203.0.113.100\n L1-5 2026-04-25T15:34:20Z auth.login_failure user=root src_ip=203.0.113.133\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-1\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage2_multi", "seed": 105090, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 3 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T11:09:00Z auth.login_success user=alice src_ip=10.0.0.192\n L1-1 2026-04-25T16:14:00Z proc.lolbin_use process=powershell.exe parent_process=chrome.exe cmd=-enc AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n L1-2 2026-04-25T16:14:05Z file.write path=C:\\Users\\Public\\tmp.exe\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-1\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage2_multi", "seed": 105091, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 4 event(s); first=net.dns_query\nLOG_WINDOW:\n L1-0 2026-04-25T19:08:00Z net.dns_query domain=google.com\n L1-1 2026-04-25T19:29:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB\n L1-2 2026-04-25T19:29:15Z net.beacon dst_ip=203.0.113.5 interval_s=30\n L1-3 2026-04-25T19:29:30Z auth.privilege_grant user=bob role=admin\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"escalate\", \"cited_log_id\": \"L1-1\", \"rationale\": \"Combined endpoint and network compromise signals \\u2014 page on-call.\"}"}], "task_id": "stage2_multi", "seed": 105092, "ground_truth": "escalate"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: phishing: 2 event(s); first=net.dns_query\nLOG_WINDOW:\n L1-0 2026-04-25T13:29:00Z net.dns_query domain=github.com\n L1-1 2026-04-25T15:57:00Z email.link_clicked url=https://login-update.top/secure user=alice\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-1\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage2_multi", "seed": 105093, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 3 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T11:41:00Z proc.lolbin_use process=powershell.exe parent_process=excel.exe cmd=-enc AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n L1-1 2026-04-25T11:41:05Z file.write path=C:\\Users\\Public\\svc.exe\n L1-2 2026-04-25T12:17:00Z auth.login_success user=dave src_ip=10.0.0.228\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage2_multi", "seed": 105094, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 2 event(s); first=net.dns_query\nLOG_WINDOW:\n L1-0 2026-04-25T01:50:00Z net.dns_query domain=internal.corp\n L1-1 2026-04-25T13:19:00Z net.beacon dst_ip=10.0.190.243 interval_s=90\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-1\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage2_multi", "seed": 105095, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 2 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T01:32:00Z auth.login_success user=bob src_ip=10.0.0.54\n L1-1 2026-04-25T18:00:00Z net.dns_query domain=internal.corp\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"dismiss\", \"cited_log_id\": \"L1-1\", \"rationale\": \"No malicious indicators in the log window.\"}"}], "task_id": "stage2_multi", "seed": 105096, "ground_truth": "dismiss"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 2 event(s); first=edr.behavior_match\nLOG_WINDOW:\n L1-0 2026-04-25T11:16:00Z edr.behavior_match severity=high rule_id=EDR-9044 host=host-040\n L1-1 2026-04-25T13:41:00Z net.dns_query domain=internal.corp\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage2_multi", "seed": 105097, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 2 event(s); first=net.port_scan_hit\nLOG_WINDOW:\n L1-0 2026-04-25T00:40:00Z net.port_scan_hit src_ip=203.0.113.242 port=22\n L1-1 2026-04-25T19:38:00Z net.dns_query domain=google.com\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage2_multi", "seed": 105098, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: c2_beacon: 2 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T06:01:00Z auth.login_success user=bob src_ip=10.0.0.122\n L1-1 2026-04-25T09:03:00Z net.beacon dst_ip=185.220.101.7 interval_s=90\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-1\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage2_multi", "seed": 105099, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 2 event(s); first=edr.behavior_match\nLOG_WINDOW:\n L1-0 2026-04-25T06:59:00Z edr.behavior_match severity=high rule_id=EDR-2620 host=host-006\n L1-1 2026-04-25T17:20:00Z auth.login_success user=alice src_ip=10.0.0.22\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage2_multi", "seed": 105100, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 2 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T03:23:00Z auth.login_success user=carol src_ip=10.0.0.79\n L1-1 2026-04-25T07:39:00Z net.outbound_connection dst_ip=10.0.102.129 bytes_out=88240\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"dismiss\", \"cited_log_id\": \"L1-1\", \"rationale\": \"No malicious indicators in the log window.\"}"}], "task_id": "stage2_multi", "seed": 105101, "ground_truth": "dismiss"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: c2_beacon: 2 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T07:17:00Z net.beacon dst_ip=185.220.101.7 interval_s=30\n L1-1 2026-04-25T13:26:00Z auth.login_success user=carol src_ip=10.0.0.47\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage2_multi", "seed": 105102, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: c2_beacon: 2 event(s); first=net.dns_query\nLOG_WINDOW:\n L1-0 2026-04-25T16:34:00Z net.dns_query domain=google.com\n L1-1 2026-04-25T19:19:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-1\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage2_multi", "seed": 105103, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 2 event(s); first=net.outbound_connection\nLOG_WINDOW:\n L1-0 2026-04-25T05:02:00Z net.outbound_connection dst_ip=10.0.236.80 bytes_out=24370\n L1-1 2026-04-25T22:21:00Z net.beacon dst_ip=10.0.103.112 interval_s=90\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-1\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage2_multi", "seed": 105104, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: c2_beacon: 2 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T00:57:00Z net.beacon dst_ip=198.51.100.42 interval_s=60\n L1-1 2026-04-25T04:45:00Z net.dns_query domain=internal.corp\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage2_multi", "seed": 105105, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 2 event(s); first=edr.behavior_match\nLOG_WINDOW:\n L1-0 2026-04-25T05:12:00Z edr.behavior_match severity=high rule_id=EDR-8604 host=host-021\n L1-1 2026-04-25T06:49:00Z auth.login_success user=alice src_ip=10.0.0.140\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage2_multi", "seed": 105106, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 3 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T05:55:00Z proc.lolbin_use process=powershell.exe parent_process=winword.exe cmd=-enc AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n L1-1 2026-04-25T05:55:05Z file.write path=C:\\Users\\Public\\svc.exe\n L1-2 2026-04-25T13:29:00Z net.outbound_connection dst_ip=10.0.147.79 bytes_out=67447\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage2_multi", "seed": 105107, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 2 event(s); first=edr.behavior_match\nLOG_WINDOW:\n L1-0 2026-04-25T21:01:00Z edr.behavior_match severity=high rule_id=EDR-8262 host=host-006\n L1-1 2026-04-25T22:21:00Z net.dns_query domain=internal.corp\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage2_multi", "seed": 105108, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 3 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T04:18:00Z proc.lolbin_use process=powershell.exe parent_process=chrome.exe cmd=-enc AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n L1-1 2026-04-25T04:18:05Z file.write path=C:\\Users\\Public\\tmp.exe\n L1-2 2026-04-25T19:34:00Z net.dns_query domain=google.com\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage2_multi", "seed": 105109, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 2 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T00:27:00Z net.beacon dst_ip=10.0.103.106 interval_s=90\n L1-1 2026-04-25T20:46:00Z auth.login_success user=carol src_ip=10.0.0.5\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage2_multi", "seed": 105110, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 2 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T07:57:00Z net.beacon dst_ip=10.0.177.241 interval_s=30\n L1-1 2026-04-25T11:17:00Z net.dns_query domain=google.com\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage2_multi", "seed": 105111, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 4 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T07:40:00Z auth.login_success user=bob src_ip=10.0.0.15\n L1-1 2026-04-25T14:33:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB\n L1-2 2026-04-25T14:33:15Z net.beacon dst_ip=203.0.113.5 interval_s=30\n L1-3 2026-04-25T14:33:30Z auth.privilege_grant user=alice role=admin\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"escalate\", \"cited_log_id\": \"L1-1\", \"rationale\": \"Combined endpoint and network compromise signals \\u2014 page on-call.\"}"}], "task_id": "stage2_multi", "seed": 105112, "ground_truth": "escalate"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 3 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T02:52:00Z proc.lolbin_use process=powershell.exe parent_process=winword.exe cmd=-enc AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n L1-1 2026-04-25T02:52:05Z file.write path=C:\\Users\\Public\\svc.exe\n L1-2 2026-04-25T18:13:00Z net.dns_query domain=internal.corp\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage2_multi", "seed": 105113, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 2 event(s); first=net.outbound_connection\nLOG_WINDOW:\n L1-0 2026-04-25T10:50:00Z net.outbound_connection dst_ip=10.0.136.154 bytes_out=36106\n L1-1 2026-04-25T14:40:00Z edr.behavior_match severity=high rule_id=EDR-8506 host=host-025\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-1\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage2_multi", "seed": 105114, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 2 event(s); first=net.outbound_connection\nLOG_WINDOW:\n L1-0 2026-04-25T09:41:00Z net.outbound_connection dst_ip=10.0.44.141 bytes_out=88275\n L1-1 2026-04-25T14:04:00Z net.beacon dst_ip=10.0.207.231 interval_s=30\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-1\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage2_multi", "seed": 105115, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 4 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T06:33:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB\n L1-1 2026-04-25T06:33:15Z net.beacon dst_ip=203.0.113.5 interval_s=30\n L1-2 2026-04-25T06:33:30Z auth.privilege_grant user=bob role=admin\n L1-3 2026-04-25T09:29:00Z auth.login_success user=carol src_ip=10.0.0.205\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"escalate\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Combined endpoint and network compromise signals \\u2014 page on-call.\"}"}], "task_id": "stage2_multi", "seed": 105116, "ground_truth": "escalate"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 2 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T05:30:00Z auth.login_success user=erin src_ip=10.0.0.43\n L1-1 2026-04-25T12:56:00Z net.dns_query domain=github.com\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"dismiss\", \"cited_log_id\": \"L1-1\", \"rationale\": \"No malicious indicators in the log window.\"}"}], "task_id": "stage2_multi", "seed": 105117, "ground_truth": "dismiss"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: phishing: 2 event(s); first=email.link_clicked\nLOG_WINDOW:\n L1-0 2026-04-25T13:32:00Z email.link_clicked url=https://login-update.top/secure user=carol\n L1-1 2026-04-25T17:05:00Z net.dns_query domain=github.com\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage2_multi", "seed": 105118, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: phishing: 2 event(s); first=email.link_clicked\nLOG_WINDOW:\n L1-0 2026-04-25T00:52:00Z email.link_clicked url=https://login-update.xyz/secure user=bob\n L1-1 2026-04-25T06:37:00Z net.outbound_connection dst_ip=10.0.134.78 bytes_out=24627\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage2_multi", "seed": 105119, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 2 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T06:22:00Z auth.login_success user=erin src_ip=10.0.0.112\n L1-1 2026-04-25T10:05:00Z net.outbound_connection dst_ip=10.0.123.250 bytes_out=78230\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"dismiss\", \"cited_log_id\": \"L1-1\", \"rationale\": \"No malicious indicators in the log window.\"}"}], "task_id": "stage2_multi", "seed": 105120, "ground_truth": "dismiss"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: phishing: 2 event(s); first=email.link_clicked\nLOG_WINDOW:\n L1-0 2026-04-25T02:40:00Z email.link_clicked url=https://login-update.click/secure user=bob\n L1-1 2026-04-25T15:44:00Z net.dns_query domain=google.com\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage2_multi", "seed": 105121, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: phishing: 2 event(s); first=email.link_clicked\nLOG_WINDOW:\n L1-0 2026-04-25T03:23:00Z email.link_clicked url=https://login-update.top/secure user=carol\n L1-1 2026-04-25T21:10:00Z net.outbound_connection dst_ip=10.0.170.34 bytes_out=30255\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage2_multi", "seed": 105122, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 3 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T05:52:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n L1-1 2026-04-25T05:52:05Z file.write path=C:\\Users\\Public\\svc.exe\n L1-2 2026-04-25T12:04:00Z auth.login_success user=dave src_ip=10.0.0.114\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage2_multi", "seed": 105123, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 3 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T03:13:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n L1-1 2026-04-25T03:13:05Z file.write path=C:\\Users\\Public\\svc.exe\n L1-2 2026-04-25T07:49:00Z auth.login_success user=bob src_ip=10.0.0.136\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage2_multi", "seed": 105124, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: phishing: 2 event(s); first=email.link_clicked\nLOG_WINDOW:\n L1-0 2026-04-25T00:26:00Z email.link_clicked url=https://login-update.top/secure user=carol\n L1-1 2026-04-25T04:49:00Z net.dns_query domain=github.com\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage2_multi", "seed": 105125, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 3 event(s); first=net.outbound_connection\nLOG_WINDOW:\n L1-0 2026-04-25T03:55:00Z net.outbound_connection dst_ip=10.0.92.90 bytes_out=81075\n L1-1 2026-04-25T07:33:00Z proc.lolbin_use process=powershell.exe parent_process=excel.exe cmd=-enc AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n L1-2 2026-04-25T07:33:05Z file.write path=C:\\Users\\Public\\tmp.exe\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-1\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage2_multi", "seed": 105126, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 4 event(s); first=net.outbound_connection\nLOG_WINDOW:\n L1-0 2026-04-25T01:17:00Z net.outbound_connection dst_ip=10.0.47.200 bytes_out=61413\n L1-1 2026-04-25T06:54:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB\n L1-2 2026-04-25T06:54:15Z net.beacon dst_ip=203.0.113.5 interval_s=30\n L1-3 2026-04-25T06:54:30Z auth.privilege_grant user=alice role=admin\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"escalate\", \"cited_log_id\": \"L1-1\", \"rationale\": \"Combined endpoint and network compromise signals \\u2014 page on-call.\"}"}], "task_id": "stage2_multi", "seed": 105127, "ground_truth": "escalate"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: brute_force: 10 event(s); first=net.dns_query\nLOG_WINDOW:\n L1-0 2026-04-25T01:26:00Z net.dns_query domain=internal.corp\n L1-1 2026-04-25T16:50:00Z auth.login_failure user=service_acct src_ip=203.0.113.214\n L1-2 2026-04-25T16:50:05Z auth.login_failure user=service_acct src_ip=203.0.113.135\n L1-3 2026-04-25T16:50:10Z auth.login_failure user=service_acct src_ip=203.0.113.227\n L1-4 2026-04-25T16:50:15Z auth.login_failure user=service_acct src_ip=203.0.113.170\n L1-5 2026-04-25T16:50:20Z auth.login_failure user=service_acct src_ip=203.0.113.64\n L1-6 2026-04-25T16:50:25Z auth.login_failure user=service_acct src_ip=203.0.113.161\n L1-7 2026-04-25T16:50:30Z auth.login_failure user=service_acct src_ip=203.0.113.51\n L1-8 2026-04-25T16:50:35Z auth.login_failure user=service_acct src_ip=203.0.113.68\n L1-9 2026-04-25T16:50:40Z auth.login_failure user=service_acct src_ip=203.0.113.40\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-1\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage2_multi", "seed": 105128, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 3 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T08:17:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n L1-1 2026-04-25T08:17:05Z file.write path=C:\\Users\\Public\\svc.exe\n L1-2 2026-04-25T14:26:00Z net.dns_query domain=internal.corp\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage2_multi", "seed": 105129, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 3 event(s); first=net.dns_query\nLOG_WINDOW:\n L1-0 2026-04-25T05:18:00Z net.dns_query domain=internal.corp\n L1-1 2026-04-25T07:58:00Z proc.lolbin_use process=powershell.exe parent_process=excel.exe cmd=-enc AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n L1-2 2026-04-25T07:58:05Z file.write path=C:\\Users\\Public\\payload.exe\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-1\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage2_multi", "seed": 105130, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 4 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T08:07:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB\n L1-1 2026-04-25T08:07:15Z net.beacon dst_ip=203.0.113.5 interval_s=30\n L1-2 2026-04-25T08:07:30Z auth.privilege_grant user=alice role=admin\n L1-3 2026-04-25T14:06:00Z net.outbound_connection dst_ip=10.0.125.101 bytes_out=52564\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"escalate\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Combined endpoint and network compromise signals \\u2014 page on-call.\"}"}], "task_id": "stage2_multi", "seed": 105131, "ground_truth": "escalate"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 4 event(s); first=net.dns_query\nLOG_WINDOW:\n L1-0 2026-04-25T01:33:00Z net.dns_query domain=github.com\n L1-1 2026-04-25T10:10:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB\n L1-2 2026-04-25T10:10:15Z net.beacon dst_ip=203.0.113.5 interval_s=30\n L1-3 2026-04-25T10:10:30Z auth.privilege_grant user=alice role=admin\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"escalate\", \"cited_log_id\": \"L1-1\", \"rationale\": \"Combined endpoint and network compromise signals \\u2014 page on-call.\"}"}], "task_id": "stage2_multi", "seed": 105132, "ground_truth": "escalate"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 3 event(s); first=net.outbound_connection\nLOG_WINDOW:\n L1-0 2026-04-25T14:28:00Z net.outbound_connection dst_ip=10.0.226.155 bytes_out=43300\n L1-1 2026-04-25T20:50:00Z proc.lolbin_use process=powershell.exe parent_process=excel.exe cmd=-enc AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n L1-2 2026-04-25T20:50:05Z file.write path=C:\\Users\\Public\\payload.exe\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-1\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage2_multi", "seed": 105133, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: brute_force: 10 event(s); first=auth.login_failure\nLOG_WINDOW:\n L1-0 2026-04-25T04:59:00Z auth.login_failure user=alice src_ip=203.0.113.50\n L1-1 2026-04-25T04:59:05Z auth.login_failure user=alice src_ip=203.0.113.75\n L1-2 2026-04-25T04:59:10Z auth.login_failure user=alice src_ip=203.0.113.139\n L1-3 2026-04-25T04:59:15Z auth.login_failure user=alice src_ip=203.0.113.133\n L1-4 2026-04-25T04:59:20Z auth.login_failure user=alice src_ip=203.0.113.188\n L1-5 2026-04-25T04:59:25Z auth.login_failure user=alice src_ip=203.0.113.103\n L1-6 2026-04-25T04:59:30Z auth.login_failure user=alice src_ip=203.0.113.82\n L1-7 2026-04-25T04:59:35Z auth.login_failure user=alice src_ip=203.0.113.201\n L1-8 2026-04-25T04:59:40Z auth.login_failure user=alice src_ip=203.0.113.95\n L1-9 2026-04-25T13:36:00Z net.dns_query domain=github.com\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage2_multi", "seed": 105134, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 3 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T15:04:00Z proc.lolbin_use process=powershell.exe parent_process=winword.exe cmd=-enc AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n L1-1 2026-04-25T15:04:05Z file.write path=C:\\Users\\Public\\payload.exe\n L1-2 2026-04-25T17:36:00Z auth.login_success user=dave src_ip=10.0.0.41\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage2_multi", "seed": 105135, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 2 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T16:11:00Z auth.login_success user=dave src_ip=10.0.0.133\n L1-1 2026-04-25T16:56:00Z net.port_scan_hit src_ip=203.0.113.198 port=3389\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-1\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage2_multi", "seed": 105136, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 2 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T10:47:00Z auth.login_success user=erin src_ip=10.0.0.105\n L1-1 2026-04-25T22:49:00Z net.dns_query domain=internal.corp\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"dismiss\", \"cited_log_id\": \"L1-1\", \"rationale\": \"No malicious indicators in the log window.\"}"}], "task_id": "stage2_multi", "seed": 105137, "ground_truth": "dismiss"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: phishing: 2 event(s); first=email.link_clicked\nLOG_WINDOW:\n L1-0 2026-04-25T03:18:00Z email.link_clicked url=https://login-update.top/secure user=bob\n L1-1 2026-04-25T03:20:00Z net.outbound_connection dst_ip=10.0.239.28 bytes_out=89251\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage2_multi", "seed": 105138, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 2 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T04:10:00Z auth.login_success user=erin src_ip=10.0.0.36\n L1-1 2026-04-25T16:35:00Z auth.login_success user=alice src_ip=10.0.0.185\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"dismiss\", \"cited_log_id\": \"L1-1\", \"rationale\": \"No malicious indicators in the log window.\"}"}], "task_id": "stage2_multi", "seed": 105139, "ground_truth": "dismiss"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: brute_force: 6 event(s); first=net.dns_query\nLOG_WINDOW:\n L1-0 2026-04-25T04:21:00Z net.dns_query domain=github.com\n L1-1 2026-04-25T08:38:00Z auth.login_failure user=alice src_ip=203.0.113.86\n L1-2 2026-04-25T08:38:05Z auth.login_failure user=alice src_ip=203.0.113.77\n L1-3 2026-04-25T08:38:10Z auth.login_failure user=alice src_ip=203.0.113.206\n L1-4 2026-04-25T08:38:15Z auth.login_failure user=alice src_ip=203.0.113.216\n L1-5 2026-04-25T08:38:20Z auth.login_failure user=alice src_ip=203.0.113.230\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-1\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage2_multi", "seed": 105140, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 2 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T03:38:00Z net.beacon dst_ip=10.0.82.65 interval_s=30\n L1-1 2026-04-25T10:26:00Z auth.login_success user=alice src_ip=10.0.0.118\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage2_multi", "seed": 105141, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: phishing: 2 event(s); first=email.link_clicked\nLOG_WINDOW:\n L1-0 2026-04-25T09:13:00Z email.link_clicked url=https://login-update.cn/secure user=bob\n L1-1 2026-04-25T10:25:00Z net.dns_query domain=google.com\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage2_multi", "seed": 105142, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 2 event(s); first=edr.behavior_match\nLOG_WINDOW:\n L1-0 2026-04-25T09:35:00Z edr.behavior_match severity=high rule_id=EDR-6055 host=host-037\n L1-1 2026-04-25T18:30:00Z net.dns_query domain=google.com\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage2_multi", "seed": 105143, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 3 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T10:59:00Z proc.lolbin_use process=powershell.exe parent_process=excel.exe cmd=-enc AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n L1-1 2026-04-25T10:59:05Z file.write path=C:\\Users\\Public\\payload.exe\n L1-2 2026-04-25T18:05:00Z auth.login_success user=carol src_ip=10.0.0.187\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage2_multi", "seed": 105144, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: brute_force: 8 event(s); first=net.dns_query\nLOG_WINDOW:\n L1-0 2026-04-25T15:33:00Z net.dns_query domain=google.com\n L1-1 2026-04-25T15:49:00Z auth.login_failure user=service_acct src_ip=203.0.113.180\n L1-2 2026-04-25T15:49:05Z auth.login_failure user=service_acct src_ip=203.0.113.38\n L1-3 2026-04-25T15:49:10Z auth.login_failure user=service_acct src_ip=203.0.113.106\n L1-4 2026-04-25T15:49:15Z auth.login_failure user=service_acct src_ip=203.0.113.171\n L1-5 2026-04-25T15:49:20Z auth.login_failure user=service_acct src_ip=203.0.113.37\n L1-6 2026-04-25T15:49:25Z auth.login_failure user=service_acct src_ip=203.0.113.90\n L1-7 2026-04-25T15:49:30Z auth.login_failure user=service_acct src_ip=203.0.113.242\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-1\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage2_multi", "seed": 105145, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 4 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T09:03:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB\n L1-1 2026-04-25T09:03:15Z net.beacon dst_ip=203.0.113.5 interval_s=30\n L1-2 2026-04-25T09:03:30Z auth.privilege_grant user=bob role=admin\n L1-3 2026-04-25T18:19:00Z net.dns_query domain=github.com\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"escalate\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Combined endpoint and network compromise signals \\u2014 page on-call.\"}"}], "task_id": "stage2_multi", "seed": 105146, "ground_truth": "escalate"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: phishing: 2 event(s); first=email.link_clicked\nLOG_WINDOW:\n L1-0 2026-04-25T14:24:00Z email.link_clicked url=https://login-update.top/secure user=alice\n L1-1 2026-04-25T19:52:00Z auth.login_success user=bob src_ip=10.0.0.104\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage2_multi", "seed": 105147, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 4 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T01:32:00Z auth.login_success user=bob src_ip=10.0.0.86\n L1-1 2026-04-25T08:49:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB\n L1-2 2026-04-25T08:49:15Z net.beacon dst_ip=203.0.113.5 interval_s=30\n L1-3 2026-04-25T08:49:30Z auth.privilege_grant user=bob role=admin\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"escalate\", \"cited_log_id\": \"L1-1\", \"rationale\": \"Combined endpoint and network compromise signals \\u2014 page on-call.\"}"}], "task_id": "stage2_multi", "seed": 105148, "ground_truth": "escalate"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 2 event(s); first=edr.behavior_match\nLOG_WINDOW:\n L1-0 2026-04-25T10:58:00Z edr.behavior_match severity=high rule_id=EDR-6124 host=host-041\n L1-1 2026-04-25T19:03:00Z auth.login_success user=alice src_ip=10.0.0.185\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage2_multi", "seed": 105149, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 2 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T13:01:00Z auth.login_success user=carol src_ip=10.0.0.62\n L1-1 2026-04-25T15:09:00Z auth.login_success user=alice src_ip=10.0.0.229\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"dismiss\", \"cited_log_id\": \"L1-1\", \"rationale\": \"No malicious indicators in the log window.\"}"}], "task_id": "stage2_multi", "seed": 105150, "ground_truth": "dismiss"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 3 event(s); first=net.dns_query\nLOG_WINDOW:\n L1-0 2026-04-25T11:35:00Z net.dns_query domain=google.com\n L1-1 2026-04-25T13:35:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n L1-2 2026-04-25T13:35:05Z file.write path=C:\\Users\\Public\\tmp.exe\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-1\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage2_multi", "seed": 105151, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 4 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T13:46:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB\n L1-1 2026-04-25T13:46:15Z net.beacon dst_ip=203.0.113.5 interval_s=30\n L1-2 2026-04-25T13:46:30Z auth.privilege_grant user=bob role=admin\n L1-3 2026-04-25T15:17:00Z net.dns_query domain=github.com\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"escalate\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Combined endpoint and network compromise signals \\u2014 page on-call.\"}"}], "task_id": "stage2_multi", "seed": 105152, "ground_truth": "escalate"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 2 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T09:15:00Z net.beacon dst_ip=10.0.15.94 interval_s=60\n L1-1 2026-04-25T18:18:00Z auth.login_success user=carol src_ip=10.0.0.180\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage2_multi", "seed": 105153, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: brute_force: 9 event(s); first=net.outbound_connection\nLOG_WINDOW:\n L1-0 2026-04-25T09:18:00Z net.outbound_connection dst_ip=10.0.251.126 bytes_out=59420\n L1-1 2026-04-25T19:48:00Z auth.login_failure user=alice src_ip=203.0.113.53\n L1-2 2026-04-25T19:48:05Z auth.login_failure user=alice src_ip=203.0.113.32\n L1-3 2026-04-25T19:48:10Z auth.login_failure user=alice src_ip=203.0.113.54\n L1-4 2026-04-25T19:48:15Z auth.login_failure user=alice src_ip=203.0.113.224\n L1-5 2026-04-25T19:48:20Z auth.login_failure user=alice src_ip=203.0.113.113\n L1-6 2026-04-25T19:48:25Z auth.login_failure user=alice src_ip=203.0.113.208\n L1-7 2026-04-25T19:48:30Z auth.login_failure user=alice src_ip=203.0.113.151\n L1-8 2026-04-25T19:48:35Z auth.login_failure user=alice src_ip=203.0.113.109\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-1\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage2_multi", "seed": 105154, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 3 event(s); first=net.dns_query\nLOG_WINDOW:\n L1-0 2026-04-25T13:30:00Z net.dns_query domain=github.com\n L1-1 2026-04-25T16:49:00Z proc.lolbin_use process=powershell.exe parent_process=winword.exe cmd=-enc AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n L1-2 2026-04-25T16:49:05Z file.write path=C:\\Users\\Public\\tmp.exe\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-1\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage2_multi", "seed": 105155, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 3 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T14:47:00Z proc.lolbin_use process=powershell.exe parent_process=excel.exe cmd=-enc AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n L1-1 2026-04-25T14:47:05Z file.write path=C:\\Users\\Public\\svc.exe\n L1-2 2026-04-25T20:56:00Z auth.login_success user=carol src_ip=10.0.0.221\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage2_multi", "seed": 105156, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 3 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T01:08:00Z proc.lolbin_use process=powershell.exe parent_process=winword.exe cmd=-enc AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n L1-1 2026-04-25T01:08:05Z file.write path=C:\\Users\\Public\\svc.exe\n L1-2 2026-04-25T11:18:00Z net.dns_query domain=internal.corp\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage2_multi", "seed": 105157, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 2 event(s); first=net.port_scan_hit\nLOG_WINDOW:\n L1-0 2026-04-25T15:44:00Z net.port_scan_hit src_ip=203.0.113.115 port=22\n L1-1 2026-04-25T21:59:00Z net.outbound_connection dst_ip=10.0.194.55 bytes_out=68708\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage2_multi", "seed": 105158, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 4 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T00:32:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB\n L1-1 2026-04-25T00:32:15Z net.beacon dst_ip=203.0.113.5 interval_s=30\n L1-2 2026-04-25T00:32:30Z auth.privilege_grant user=alice role=admin\n L1-3 2026-04-25T08:47:00Z net.outbound_connection dst_ip=10.0.5.151 bytes_out=3034\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"escalate\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Combined endpoint and network compromise signals \\u2014 page on-call.\"}"}], "task_id": "stage2_multi", "seed": 105159, "ground_truth": "escalate"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 4 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T00:37:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB\n L1-1 2026-04-25T00:37:15Z net.beacon dst_ip=203.0.113.5 interval_s=30\n L1-2 2026-04-25T00:37:30Z auth.privilege_grant user=alice role=admin\n L1-3 2026-04-25T06:50:00Z net.dns_query domain=internal.corp\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"escalate\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Combined endpoint and network compromise signals \\u2014 page on-call.\"}"}], "task_id": "stage2_multi", "seed": 105160, "ground_truth": "escalate"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: c2_beacon: 2 event(s); first=net.dns_query\nLOG_WINDOW:\n L1-0 2026-04-25T07:34:00Z net.dns_query domain=internal.corp\n L1-1 2026-04-25T21:03:00Z net.beacon dst_ip=198.51.100.42 interval_s=60\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-1\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage2_multi", "seed": 105161, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 3 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T12:20:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n L1-1 2026-04-25T12:20:05Z file.write path=C:\\Users\\Public\\tmp.exe\n L1-2 2026-04-25T15:11:00Z net.dns_query domain=google.com\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage2_multi", "seed": 105162, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 4 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T10:38:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB\n L1-1 2026-04-25T10:38:15Z net.beacon dst_ip=203.0.113.5 interval_s=30\n L1-2 2026-04-25T10:38:30Z auth.privilege_grant user=bob role=admin\n L1-3 2026-04-25T18:42:00Z net.dns_query domain=internal.corp\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"escalate\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Combined endpoint and network compromise signals \\u2014 page on-call.\"}"}], "task_id": "stage2_multi", "seed": 105163, "ground_truth": "escalate"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 2 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T14:06:00Z auth.login_success user=alice src_ip=10.0.0.171\n L1-1 2026-04-25T20:31:00Z auth.login_success user=bob src_ip=10.0.0.134\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"dismiss\", \"cited_log_id\": \"L1-1\", \"rationale\": \"No malicious indicators in the log window.\"}"}], "task_id": "stage2_multi", "seed": 105164, "ground_truth": "dismiss"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 4 event(s); first=net.outbound_connection\nLOG_WINDOW:\n L1-0 2026-04-25T04:02:00Z net.outbound_connection dst_ip=10.0.224.39 bytes_out=57914\n L1-1 2026-04-25T20:44:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB\n L1-2 2026-04-25T20:44:15Z net.beacon dst_ip=203.0.113.5 interval_s=30\n L1-3 2026-04-25T20:44:30Z auth.privilege_grant user=bob role=admin\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"escalate\", \"cited_log_id\": \"L1-1\", \"rationale\": \"Combined endpoint and network compromise signals \\u2014 page on-call.\"}"}], "task_id": "stage2_multi", "seed": 105165, "ground_truth": "escalate"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 2 event(s); first=edr.behavior_match\nLOG_WINDOW:\n L1-0 2026-04-25T16:18:00Z edr.behavior_match severity=high rule_id=EDR-8970 host=host-015\n L1-1 2026-04-25T22:48:00Z auth.login_success user=alice src_ip=10.0.0.71\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage2_multi", "seed": 105166, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 2 event(s); first=net.dns_query\nLOG_WINDOW:\n L1-0 2026-04-25T02:34:00Z net.dns_query domain=internal.corp\n L1-1 2026-04-25T09:50:00Z edr.behavior_match severity=high rule_id=EDR-4718 host=host-041\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-1\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage2_multi", "seed": 105167, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 2 event(s); first=net.outbound_connection\nLOG_WINDOW:\n L1-0 2026-04-25T07:38:00Z net.outbound_connection dst_ip=10.0.227.211 bytes_out=90442\n L1-1 2026-04-25T14:59:00Z edr.behavior_match severity=high rule_id=EDR-4531 host=host-021\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-1\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage2_multi", "seed": 105168, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 2 event(s); first=net.port_scan_hit\nLOG_WINDOW:\n L1-0 2026-04-25T08:16:00Z net.port_scan_hit src_ip=203.0.113.16 port=23\n L1-1 2026-04-25T15:36:00Z net.outbound_connection dst_ip=10.0.231.45 bytes_out=21502\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage2_multi", "seed": 105169, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 4 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T00:15:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB\n L1-1 2026-04-25T00:15:15Z net.beacon dst_ip=203.0.113.5 interval_s=30\n L1-2 2026-04-25T00:15:30Z auth.privilege_grant user=bob role=admin\n L1-3 2026-04-25T15:32:00Z auth.login_success user=carol src_ip=10.0.0.97\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"escalate\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Combined endpoint and network compromise signals \\u2014 page on-call.\"}"}], "task_id": "stage2_multi", "seed": 105170, "ground_truth": "escalate"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: c2_beacon: 2 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T11:25:00Z net.beacon dst_ip=185.220.101.7 interval_s=60\n L1-1 2026-04-25T22:04:00Z auth.login_success user=carol src_ip=10.0.0.235\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage2_multi", "seed": 105171, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: c2_beacon: 2 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T08:01:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n L1-1 2026-04-25T10:33:00Z auth.login_success user=bob src_ip=10.0.0.94\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage2_multi", "seed": 105172, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: brute_force: 10 event(s); first=net.dns_query\nLOG_WINDOW:\n L1-0 2026-04-25T04:37:00Z net.dns_query domain=github.com\n L1-1 2026-04-25T14:02:00Z auth.login_failure user=alice src_ip=203.0.113.83\n L1-2 2026-04-25T14:02:05Z auth.login_failure user=alice src_ip=203.0.113.59\n L1-3 2026-04-25T14:02:10Z auth.login_failure user=alice src_ip=203.0.113.240\n L1-4 2026-04-25T14:02:15Z auth.login_failure user=alice src_ip=203.0.113.157\n L1-5 2026-04-25T14:02:20Z auth.login_failure user=alice src_ip=203.0.113.184\n L1-6 2026-04-25T14:02:25Z auth.login_failure user=alice src_ip=203.0.113.203\n L1-7 2026-04-25T14:02:30Z auth.login_failure user=alice src_ip=203.0.113.85\n L1-8 2026-04-25T14:02:35Z auth.login_failure user=alice src_ip=203.0.113.116\n L1-9 2026-04-25T14:02:40Z auth.login_failure user=alice src_ip=203.0.113.91\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-1\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage2_multi", "seed": 105173, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 3 event(s); first=net.dns_query\nLOG_WINDOW:\n L1-0 2026-04-25T12:18:00Z net.dns_query domain=google.com\n L1-1 2026-04-25T15:07:00Z proc.lolbin_use process=powershell.exe parent_process=excel.exe cmd=-enc AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n L1-2 2026-04-25T15:07:05Z file.write path=C:\\Users\\Public\\tmp.exe\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-1\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage2_multi", "seed": 105174, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 2 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T04:58:00Z auth.login_success user=carol src_ip=10.0.0.2\n L1-1 2026-04-25T05:53:00Z net.beacon dst_ip=10.0.119.52 interval_s=30\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-1\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage2_multi", "seed": 105175, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: c2_beacon: 2 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:09:00Z net.beacon dst_ip=198.51.100.42 interval_s=90\n L1-1 2026-04-25T16:26:00Z auth.login_success user=carol src_ip=10.0.0.165\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage2_multi", "seed": 105176, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 2 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T16:31:00Z auth.login_success user=dave src_ip=10.0.0.63\n L1-1 2026-04-25T22:51:00Z net.outbound_connection dst_ip=10.0.250.222 bytes_out=37443\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"dismiss\", \"cited_log_id\": \"L1-1\", \"rationale\": \"No malicious indicators in the log window.\"}"}], "task_id": "stage2_multi", "seed": 105177, "ground_truth": "dismiss"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 4 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T07:52:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB\n L1-1 2026-04-25T07:52:15Z net.beacon dst_ip=203.0.113.5 interval_s=30\n L1-2 2026-04-25T07:52:30Z auth.privilege_grant user=alice role=admin\n L1-3 2026-04-25T16:31:00Z net.dns_query domain=github.com\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"escalate\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Combined endpoint and network compromise signals \\u2014 page on-call.\"}"}], "task_id": "stage2_multi", "seed": 105178, "ground_truth": "escalate"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 2 event(s); first=net.outbound_connection\nLOG_WINDOW:\n L1-0 2026-04-25T13:24:00Z net.outbound_connection dst_ip=10.0.67.82 bytes_out=75100\n L1-1 2026-04-25T21:21:00Z net.beacon dst_ip=10.0.138.242 interval_s=30\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-1\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage2_multi", "seed": 105179, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: brute_force: 10 event(s); first=auth.login_failure\nLOG_WINDOW:\n L1-0 2026-04-25T07:53:00Z auth.login_failure user=admin src_ip=203.0.113.127\n L1-1 2026-04-25T07:53:05Z auth.login_failure user=admin src_ip=203.0.113.99\n L1-2 2026-04-25T07:53:10Z auth.login_failure user=admin src_ip=203.0.113.229\n L1-3 2026-04-25T07:53:15Z auth.login_failure user=admin src_ip=203.0.113.29\n L1-4 2026-04-25T07:53:20Z auth.login_failure user=admin src_ip=203.0.113.59\n L1-5 2026-04-25T07:53:25Z auth.login_failure user=admin src_ip=203.0.113.2\n L1-6 2026-04-25T07:53:30Z auth.login_failure user=admin src_ip=203.0.113.162\n L1-7 2026-04-25T07:53:35Z auth.login_failure user=admin src_ip=203.0.113.67\n L1-8 2026-04-25T07:53:40Z auth.login_failure user=admin src_ip=203.0.113.15\n L1-9 2026-04-25T19:34:00Z net.dns_query domain=github.com\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage2_multi", "seed": 105180, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 2 event(s); first=net.port_scan_hit\nLOG_WINDOW:\n L1-0 2026-04-25T05:25:00Z net.port_scan_hit src_ip=203.0.113.133 port=3389\n L1-1 2026-04-25T18:50:00Z net.dns_query domain=google.com\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage2_multi", "seed": 105181, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 2 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T13:15:00Z net.beacon dst_ip=10.0.225.53 interval_s=30\n L1-1 2026-04-25T15:49:00Z net.outbound_connection dst_ip=10.0.233.107 bytes_out=48006\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage2_multi", "seed": 105182, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: brute_force: 7 event(s); first=net.dns_query\nLOG_WINDOW:\n L1-0 2026-04-25T02:17:00Z net.dns_query domain=github.com\n L1-1 2026-04-25T03:15:00Z auth.login_failure user=service_acct src_ip=203.0.113.248\n L1-2 2026-04-25T03:15:05Z auth.login_failure user=service_acct src_ip=203.0.113.90\n L1-3 2026-04-25T03:15:10Z auth.login_failure user=service_acct src_ip=203.0.113.18\n L1-4 2026-04-25T03:15:15Z auth.login_failure user=service_acct src_ip=203.0.113.153\n L1-5 2026-04-25T03:15:20Z auth.login_failure user=service_acct src_ip=203.0.113.222\n L1-6 2026-04-25T03:15:25Z auth.login_failure user=service_acct src_ip=203.0.113.95\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-1\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage2_multi", "seed": 105183, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 2 event(s); first=net.port_scan_hit\nLOG_WINDOW:\n L1-0 2026-04-25T06:30:00Z net.port_scan_hit src_ip=203.0.113.139 port=23\n L1-1 2026-04-25T13:39:00Z auth.login_success user=dave src_ip=10.0.0.85\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage2_multi", "seed": 105184, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: c2_beacon: 2 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T06:45:00Z net.beacon dst_ip=185.220.101.7 interval_s=60\n L1-1 2026-04-25T15:21:00Z net.dns_query domain=google.com\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage2_multi", "seed": 105185, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 4 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T08:31:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB\n L1-1 2026-04-25T08:31:15Z net.beacon dst_ip=203.0.113.5 interval_s=30\n L1-2 2026-04-25T08:31:30Z auth.privilege_grant user=bob role=admin\n L1-3 2026-04-25T11:56:00Z auth.login_success user=dave src_ip=10.0.0.170\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"escalate\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Combined endpoint and network compromise signals \\u2014 page on-call.\"}"}], "task_id": "stage2_multi", "seed": 105186, "ground_truth": "escalate"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 2 event(s); first=net.dns_query\nLOG_WINDOW:\n L1-0 2026-04-25T19:14:00Z net.dns_query domain=internal.corp\n L1-1 2026-04-25T20:15:00Z net.port_scan_hit src_ip=203.0.113.99 port=445\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-1\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage2_multi", "seed": 105187, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 3 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T04:17:00Z proc.lolbin_use process=powershell.exe parent_process=excel.exe cmd=-enc AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n L1-1 2026-04-25T04:17:05Z file.write path=C:\\Users\\Public\\tmp.exe\n L1-2 2026-04-25T22:11:00Z net.outbound_connection dst_ip=10.0.223.3 bytes_out=59481\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage2_multi", "seed": 105188, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: brute_force: 9 event(s); first=net.outbound_connection\nLOG_WINDOW:\n L1-0 2026-04-25T03:52:00Z net.outbound_connection dst_ip=10.0.30.4 bytes_out=87274\n L1-1 2026-04-25T20:07:00Z auth.login_failure user=alice src_ip=203.0.113.134\n L1-2 2026-04-25T20:07:05Z auth.login_failure user=alice src_ip=203.0.113.25\n L1-3 2026-04-25T20:07:10Z auth.login_failure user=alice src_ip=203.0.113.108\n L1-4 2026-04-25T20:07:15Z auth.login_failure user=alice src_ip=203.0.113.228\n L1-5 2026-04-25T20:07:20Z auth.login_failure user=alice src_ip=203.0.113.156\n L1-6 2026-04-25T20:07:25Z auth.login_failure user=alice src_ip=203.0.113.54\n L1-7 2026-04-25T20:07:30Z auth.login_failure user=alice src_ip=203.0.113.143\n L1-8 2026-04-25T20:07:35Z auth.login_failure user=alice src_ip=203.0.113.37\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-1\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage2_multi", "seed": 105189, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 2 event(s); first=edr.behavior_match\nLOG_WINDOW:\n L1-0 2026-04-25T12:22:00Z edr.behavior_match severity=high rule_id=EDR-1210 host=host-037\n L1-1 2026-04-25T17:43:00Z net.dns_query domain=internal.corp\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage2_multi", "seed": 105190, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 2 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T10:44:00Z auth.login_success user=bob src_ip=10.0.0.102\n L1-1 2026-04-25T22:09:00Z edr.behavior_match severity=high rule_id=EDR-7487 host=host-004\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-1\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage2_multi", "seed": 105191, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: brute_force: 6 event(s); first=auth.login_failure\nLOG_WINDOW:\n L1-0 2026-04-25T04:29:00Z auth.login_failure user=alice src_ip=203.0.113.122\n L1-1 2026-04-25T04:29:05Z auth.login_failure user=alice src_ip=203.0.113.183\n L1-2 2026-04-25T04:29:10Z auth.login_failure user=alice src_ip=203.0.113.18\n L1-3 2026-04-25T04:29:15Z auth.login_failure user=alice src_ip=203.0.113.166\n L1-4 2026-04-25T04:29:20Z auth.login_failure user=alice src_ip=203.0.113.157\n L1-5 2026-04-25T07:45:00Z auth.login_success user=bob src_ip=10.0.0.59\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-5\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage2_multi", "seed": 105192, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: phishing: 2 event(s); first=email.link_clicked\nLOG_WINDOW:\n L1-0 2026-04-25T00:33:00Z email.link_clicked url=https://login-update.xyz/secure user=carol\n L1-1 2026-04-25T03:31:00Z net.outbound_connection dst_ip=10.0.32.171 bytes_out=20428\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage2_multi", "seed": 105193, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 2 event(s); first=net.port_scan_hit\nLOG_WINDOW:\n L1-0 2026-04-25T03:22:00Z net.port_scan_hit src_ip=203.0.113.200 port=5985\n L1-1 2026-04-25T06:38:00Z net.outbound_connection dst_ip=10.0.199.151 bytes_out=36877\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage2_multi", "seed": 105194, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 3 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T02:05:00Z proc.lolbin_use process=powershell.exe parent_process=chrome.exe cmd=-enc AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n L1-1 2026-04-25T02:05:05Z file.write path=C:\\Users\\Public\\svc.exe\n L1-2 2026-04-25T14:31:00Z net.outbound_connection dst_ip=10.0.190.174 bytes_out=29723\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage2_multi", "seed": 105195, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 3 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T07:34:00Z proc.lolbin_use process=powershell.exe parent_process=excel.exe cmd=-enc AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n L1-1 2026-04-25T07:34:05Z file.write path=C:\\Users\\Public\\svc.exe\n L1-2 2026-04-25T19:08:00Z net.outbound_connection dst_ip=10.0.47.214 bytes_out=22872\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage2_multi", "seed": 105196, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 2 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T04:32:00Z net.beacon dst_ip=10.0.64.238 interval_s=30\n L1-1 2026-04-25T09:21:00Z auth.login_success user=dave src_ip=10.0.0.62\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage2_multi", "seed": 105197, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 2 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T20:57:00Z auth.login_success user=carol src_ip=10.0.0.242\n L1-1 2026-04-25T22:16:00Z edr.behavior_match severity=high rule_id=EDR-4185 host=host-041\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-1\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage2_multi", "seed": 105198, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 2 event(s); first=net.dns_query\nLOG_WINDOW:\n L1-0 2026-04-25T22:05:00Z net.dns_query domain=google.com\n L1-1 2026-04-25T22:22:00Z auth.login_success user=erin src_ip=10.0.0.95\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"dismiss\", \"cited_log_id\": \"L1-1\", \"rationale\": \"No malicious indicators in the log window.\"}"}], "task_id": "stage2_multi", "seed": 105199, "ground_truth": "dismiss"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 2 event(s); first=net.dns_query\nLOG_WINDOW:\n L1-0 2026-04-25T06:05:00Z net.dns_query domain=google.com\n L1-1 2026-04-25T20:14:00Z auth.login_success user=bob src_ip=10.0.0.24\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"dismiss\", \"cited_log_id\": \"L1-1\", \"rationale\": \"No malicious indicators in the log window.\"}"}], "task_id": "stage2_multi", "seed": 105200, "ground_truth": "dismiss"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: c2_beacon: 2 event(s); first=net.dns_query\nLOG_WINDOW:\n L1-0 2026-04-25T12:06:00Z net.dns_query domain=google.com\n L1-1 2026-04-25T12:20:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-1\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage2_multi", "seed": 105201, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 3 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T13:52:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n L1-1 2026-04-25T13:52:05Z file.write path=C:\\Users\\Public\\svc.exe\n L1-2 2026-04-25T21:25:00Z auth.login_success user=carol src_ip=10.0.0.183\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage2_multi", "seed": 105202, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: c2_beacon: 2 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T00:40:00Z net.beacon dst_ip=203.0.113.5 interval_s=90\n L1-1 2026-04-25T12:33:00Z auth.login_success user=dave src_ip=10.0.0.117\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage2_multi", "seed": 105203, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: phishing: 2 event(s); first=email.link_clicked\nLOG_WINDOW:\n L1-0 2026-04-25T02:56:00Z email.link_clicked url=https://login-update.click/secure user=bob\n L1-1 2026-04-25T13:40:00Z auth.login_success user=carol src_ip=10.0.0.132\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage2_multi", "seed": 105204, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 2 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T05:11:00Z auth.login_success user=carol src_ip=10.0.0.186\n L1-1 2026-04-25T15:27:00Z edr.behavior_match severity=high rule_id=EDR-9098 host=host-016\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-1\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage2_multi", "seed": 105205, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: phishing: 2 event(s); first=email.link_clicked\nLOG_WINDOW:\n L1-0 2026-04-25T12:02:00Z email.link_clicked url=https://login-update.cn/secure user=bob\n L1-1 2026-04-25T17:16:00Z net.dns_query domain=github.com\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage2_multi", "seed": 105206, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 2 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T00:04:00Z auth.login_success user=alice src_ip=10.0.0.12\n L1-1 2026-04-25T01:13:00Z net.outbound_connection dst_ip=10.0.78.39 bytes_out=74959\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"dismiss\", \"cited_log_id\": \"L1-1\", \"rationale\": \"No malicious indicators in the log window.\"}"}], "task_id": "stage2_multi", "seed": 105207, "ground_truth": "dismiss"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 2 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T00:11:00Z auth.login_success user=bob src_ip=10.0.0.124\n L1-1 2026-04-25T05:00:00Z net.dns_query domain=internal.corp\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"dismiss\", \"cited_log_id\": \"L1-1\", \"rationale\": \"No malicious indicators in the log window.\"}"}], "task_id": "stage2_multi", "seed": 105208, "ground_truth": "dismiss"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 2 event(s); first=net.dns_query\nLOG_WINDOW:\n L1-0 2026-04-25T02:45:00Z net.dns_query domain=github.com\n L1-1 2026-04-25T06:46:00Z edr.behavior_match severity=high rule_id=EDR-9526 host=host-019\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-1\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage2_multi", "seed": 105209, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 4 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T02:27:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB\n L1-1 2026-04-25T02:27:15Z net.beacon dst_ip=203.0.113.5 interval_s=30\n L1-2 2026-04-25T02:27:30Z auth.privilege_grant user=alice role=admin\n L1-3 2026-04-25T20:37:00Z net.dns_query domain=github.com\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"escalate\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Combined endpoint and network compromise signals \\u2014 page on-call.\"}"}], "task_id": "stage2_multi", "seed": 105210, "ground_truth": "escalate"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: phishing: 3 event(s); first=net.outbound_connection\nLOG_WINDOW:\n L1-0 2026-04-25T03:04:00Z net.outbound_connection dst_ip=10.0.209.177 bytes_out=29026\n L1-1 2026-04-25T03:04:02Z auth.login_success user=dave src_ip=10.0.0.113\n L1-2 2026-04-25T18:13:00Z email.link_clicked url=https://login-update.cn/secure user=carol\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-2\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage3_mixed", "seed": 101197, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 3 event(s); first=net.outbound_connection\nLOG_WINDOW:\n L1-0 2026-04-25T19:56:00Z net.outbound_connection dst_ip=10.0.111.53 bytes_out=82809\n L1-1 2026-04-25T19:56:02Z net.dns_query domain=google.com\n L1-2 2026-04-25T21:21:00Z net.port_scan_hit src_ip=203.0.113.83 port=445\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-2\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage3_mixed", "seed": 101198, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 5 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T01:37:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB\n L1-1 2026-04-25T01:37:00Z auth.login_success user=alice src_ip=10.0.0.227\n L1-2 2026-04-25T01:37:02Z net.dns_query domain=github.com\n L1-3 2026-04-25T01:37:15Z net.beacon dst_ip=203.0.113.5 interval_s=30\n L1-4 2026-04-25T01:37:30Z auth.privilege_grant user=alice role=admin\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"escalate\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Combined endpoint and network compromise signals \\u2014 page on-call.\"}"}], "task_id": "stage3_mixed", "seed": 101199, "ground_truth": "escalate"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: phishing: 3 event(s); first=net.outbound_connection\nLOG_WINDOW:\n L1-0 2026-04-25T13:55:00Z net.outbound_connection dst_ip=10.0.151.70 bytes_out=79919\n L1-1 2026-04-25T13:55:02Z net.outbound_connection dst_ip=10.0.38.239 bytes_out=8355\n L1-2 2026-04-25T18:04:00Z email.link_clicked url=https://login-update.xyz/secure user=alice\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-2\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage3_mixed", "seed": 101200, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 3 event(s); first=net.dns_query\nLOG_WINDOW:\n L1-0 2026-04-25T04:30:00Z net.dns_query domain=github.com\n L1-1 2026-04-25T04:30:02Z auth.login_success user=carol src_ip=10.0.0.46\n L1-2 2026-04-25T12:27:00Z edr.behavior_match severity=high rule_id=EDR-3226 host=host-003\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-2\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage3_mixed", "seed": 101201, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 3 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T08:08:00Z auth.login_success user=bob src_ip=10.0.0.188\n L1-1 2026-04-25T08:08:02Z auth.login_success user=bob src_ip=10.0.0.23\n L1-2 2026-04-25T20:56:00Z net.beacon dst_ip=10.0.148.227 interval_s=30\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-2\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage3_mixed", "seed": 101202, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: brute_force: 7 event(s); first=auth.login_failure\nLOG_WINDOW:\n L1-0 2026-04-25T06:29:00Z auth.login_failure user=alice src_ip=203.0.113.238\n L1-1 2026-04-25T06:29:05Z auth.login_failure user=alice src_ip=203.0.113.145\n L1-2 2026-04-25T06:29:10Z auth.login_failure user=alice src_ip=203.0.113.164\n L1-3 2026-04-25T06:29:15Z auth.login_failure user=alice src_ip=203.0.113.239\n L1-4 2026-04-25T06:29:20Z auth.login_failure user=alice src_ip=203.0.113.31\n L1-5 2026-04-25T10:55:00Z net.outbound_connection dst_ip=10.0.2.101 bytes_out=10155\n L1-6 2026-04-25T10:55:02Z net.outbound_connection dst_ip=10.0.26.246 bytes_out=19497\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage3_mixed", "seed": 101203, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 5 event(s); first=net.dns_query\nLOG_WINDOW:\n L1-0 2026-04-25T00:15:00Z net.dns_query domain=github.com\n L1-1 2026-04-25T00:15:02Z net.outbound_connection dst_ip=10.0.140.94 bytes_out=25243\n L1-2 2026-04-25T17:32:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB\n L1-3 2026-04-25T17:32:15Z net.beacon dst_ip=203.0.113.5 interval_s=30\n L1-4 2026-04-25T17:32:30Z auth.privilege_grant user=bob role=admin\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"escalate\", \"cited_log_id\": \"L1-2\", \"rationale\": \"Combined endpoint and network compromise signals \\u2014 page on-call.\"}"}], "task_id": "stage3_mixed", "seed": 101204, "ground_truth": "escalate"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 3 event(s); first=net.outbound_connection\nLOG_WINDOW:\n L1-0 2026-04-25T08:52:00Z net.outbound_connection dst_ip=10.0.164.102 bytes_out=80215\n L1-1 2026-04-25T08:52:02Z net.dns_query domain=github.com\n L1-2 2026-04-25T09:54:00Z net.beacon dst_ip=10.0.119.134 interval_s=90\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-2\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage3_mixed", "seed": 101205, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 4 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T17:59:00Z proc.lolbin_use process=powershell.exe parent_process=chrome.exe cmd=-enc AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n L1-1 2026-04-25T17:59:05Z file.write path=C:\\Users\\Public\\svc.exe\n L1-2 2026-04-25T19:58:00Z auth.login_success user=bob src_ip=10.0.0.88\n L1-3 2026-04-25T19:58:02Z net.dns_query domain=github.com\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage3_mixed", "seed": 101206, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: c2_beacon: 3 event(s); first=net.dns_query\nLOG_WINDOW:\n L1-0 2026-04-25T09:48:00Z net.dns_query domain=internal.corp\n L1-1 2026-04-25T09:48:02Z auth.login_success user=carol src_ip=10.0.0.23\n L1-2 2026-04-25T10:48:00Z net.beacon dst_ip=203.0.113.5 interval_s=90\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-2\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage3_mixed", "seed": 101207, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 3 event(s); first=net.dns_query\nLOG_WINDOW:\n L1-0 2026-04-25T11:36:00Z net.dns_query domain=google.com\n L1-1 2026-04-25T11:36:02Z net.outbound_connection dst_ip=10.0.22.199 bytes_out=47089\n L1-2 2026-04-25T15:06:00Z net.port_scan_hit src_ip=203.0.113.160 port=445\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-2\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage3_mixed", "seed": 101208, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: c2_beacon: 3 event(s); first=net.dns_query\nLOG_WINDOW:\n L1-0 2026-04-25T00:55:00Z net.dns_query domain=github.com\n L1-1 2026-04-25T00:55:02Z net.outbound_connection dst_ip=10.0.233.195 bytes_out=28305\n L1-2 2026-04-25T21:05:00Z net.beacon dst_ip=185.220.101.7 interval_s=90\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-2\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage3_mixed", "seed": 101209, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 3 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T07:46:00Z auth.login_success user=bob src_ip=10.0.0.199\n L1-1 2026-04-25T22:39:00Z net.dns_query domain=internal.corp\n L1-2 2026-04-25T22:39:02Z net.outbound_connection dst_ip=10.0.173.141 bytes_out=40538\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"dismiss\", \"cited_log_id\": \"L1-2\", \"rationale\": \"No malicious indicators in the log window.\"}"}], "task_id": "stage3_mixed", "seed": 101210, "ground_truth": "dismiss"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 5 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T01:51:00Z auth.login_success user=carol src_ip=10.0.0.200\n L1-1 2026-04-25T01:51:02Z auth.login_success user=bob src_ip=10.0.0.77\n L1-2 2026-04-25T08:50:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB\n L1-3 2026-04-25T08:50:15Z net.beacon dst_ip=203.0.113.5 interval_s=30\n L1-4 2026-04-25T08:50:30Z auth.privilege_grant user=bob role=admin\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"escalate\", \"cited_log_id\": \"L1-2\", \"rationale\": \"Combined endpoint and network compromise signals \\u2014 page on-call.\"}"}], "task_id": "stage3_mixed", "seed": 101211, "ground_truth": "escalate"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 3 event(s); first=edr.behavior_match\nLOG_WINDOW:\n L1-0 2026-04-25T07:39:00Z edr.behavior_match severity=high rule_id=EDR-3480 host=host-011\n L1-1 2026-04-25T14:31:00Z auth.login_success user=alice src_ip=10.0.0.154\n L1-2 2026-04-25T14:31:02Z auth.login_success user=bob src_ip=10.0.0.2\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage3_mixed", "seed": 101212, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 3 event(s); first=edr.behavior_match\nLOG_WINDOW:\n L1-0 2026-04-25T10:11:00Z edr.behavior_match severity=high rule_id=EDR-6283 host=host-046\n L1-1 2026-04-25T17:27:00Z net.dns_query domain=github.com\n L1-2 2026-04-25T17:27:02Z net.outbound_connection dst_ip=10.0.127.218 bytes_out=72825\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage3_mixed", "seed": 101213, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 4 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T07:08:00Z proc.lolbin_use process=powershell.exe parent_process=excel.exe cmd=-enc AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n L1-1 2026-04-25T07:08:05Z file.write path=C:\\Users\\Public\\svc.exe\n L1-2 2026-04-25T16:37:00Z auth.login_success user=carol src_ip=10.0.0.7\n L1-3 2026-04-25T16:37:02Z auth.login_success user=dave src_ip=10.0.0.231\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage3_mixed", "seed": 101214, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 5 event(s); first=net.dns_query\nLOG_WINDOW:\n L1-0 2026-04-25T07:07:00Z net.dns_query domain=github.com\n L1-1 2026-04-25T07:07:02Z auth.login_success user=dave src_ip=10.0.0.84\n L1-2 2026-04-25T15:45:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB\n L1-3 2026-04-25T15:45:15Z net.beacon dst_ip=203.0.113.5 interval_s=30\n L1-4 2026-04-25T15:45:30Z auth.privilege_grant user=bob role=admin\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"escalate\", \"cited_log_id\": \"L1-2\", \"rationale\": \"Combined endpoint and network compromise signals \\u2014 page on-call.\"}"}], "task_id": "stage3_mixed", "seed": 101215, "ground_truth": "escalate"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 5 event(s); first=net.dns_query\nLOG_WINDOW:\n L1-0 2026-04-25T06:01:00Z net.dns_query domain=internal.corp\n L1-1 2026-04-25T06:01:02Z net.dns_query domain=github.com\n L1-2 2026-04-25T07:07:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB\n L1-3 2026-04-25T07:07:15Z net.beacon dst_ip=203.0.113.5 interval_s=30\n L1-4 2026-04-25T07:07:30Z auth.privilege_grant user=alice role=admin\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"escalate\", \"cited_log_id\": \"L1-2\", \"rationale\": \"Combined endpoint and network compromise signals \\u2014 page on-call.\"}"}], "task_id": "stage3_mixed", "seed": 101216, "ground_truth": "escalate"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 3 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T10:02:00Z auth.login_success user=carol src_ip=10.0.0.110\n L1-1 2026-04-25T10:02:02Z net.outbound_connection dst_ip=10.0.214.26 bytes_out=26266\n L1-2 2026-04-25T11:13:00Z net.beacon dst_ip=10.0.88.223 interval_s=90\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-2\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage3_mixed", "seed": 101217, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: brute_force: 10 event(s); first=net.outbound_connection\nLOG_WINDOW:\n L1-0 2026-04-25T17:49:00Z net.outbound_connection dst_ip=10.0.161.151 bytes_out=76068\n L1-1 2026-04-25T17:49:02Z net.dns_query domain=google.com\n L1-2 2026-04-25T18:43:00Z auth.login_failure user=alice src_ip=203.0.113.137\n L1-3 2026-04-25T18:43:05Z auth.login_failure user=alice src_ip=203.0.113.78\n L1-4 2026-04-25T18:43:10Z auth.login_failure user=alice src_ip=203.0.113.36\n L1-5 2026-04-25T18:43:15Z auth.login_failure user=alice src_ip=203.0.113.48\n L1-6 2026-04-25T18:43:20Z auth.login_failure user=alice src_ip=203.0.113.190\n L1-7 2026-04-25T18:43:25Z auth.login_failure user=alice src_ip=203.0.113.68\n L1-8 2026-04-25T18:43:30Z auth.login_failure user=alice src_ip=203.0.113.68\n L1-9 2026-04-25T18:43:35Z auth.login_failure user=alice src_ip=203.0.113.171\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-2\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage3_mixed", "seed": 101218, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 5 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T04:13:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB\n L1-1 2026-04-25T04:13:15Z net.beacon dst_ip=203.0.113.5 interval_s=30\n L1-2 2026-04-25T04:13:30Z auth.privilege_grant user=alice role=admin\n L1-3 2026-04-25T04:30:00Z net.outbound_connection dst_ip=10.0.107.74 bytes_out=33849\n L1-4 2026-04-25T04:30:02Z net.outbound_connection dst_ip=10.0.99.202 bytes_out=61226\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"escalate\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Combined endpoint and network compromise signals \\u2014 page on-call.\"}"}], "task_id": "stage3_mixed", "seed": 101219, "ground_truth": "escalate"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: phishing: 3 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T01:08:00Z auth.login_success user=carol src_ip=10.0.0.204\n L1-1 2026-04-25T01:08:02Z net.dns_query domain=google.com\n L1-2 2026-04-25T11:59:00Z email.link_clicked url=https://login-update.xyz/secure user=alice\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-2\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage3_mixed", "seed": 101220, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 4 event(s); first=net.outbound_connection\nLOG_WINDOW:\n L1-0 2026-04-25T08:30:00Z net.outbound_connection dst_ip=10.0.25.180 bytes_out=15253\n L1-1 2026-04-25T08:30:02Z net.outbound_connection dst_ip=10.0.13.175 bytes_out=68521\n L1-2 2026-04-25T20:40:00Z proc.lolbin_use process=powershell.exe parent_process=excel.exe cmd=-enc AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n L1-3 2026-04-25T20:40:05Z file.write path=C:\\Users\\Public\\tmp.exe\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-2\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage3_mixed", "seed": 101221, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 4 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T02:44:00Z proc.lolbin_use process=powershell.exe parent_process=chrome.exe cmd=-enc AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n L1-1 2026-04-25T02:44:05Z file.write path=C:\\Users\\Public\\payload.exe\n L1-2 2026-04-25T14:20:00Z auth.login_success user=bob src_ip=10.0.0.68\n L1-3 2026-04-25T14:20:02Z net.dns_query domain=internal.corp\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage3_mixed", "seed": 101222, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 4 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T03:01:00Z proc.lolbin_use process=powershell.exe parent_process=chrome.exe cmd=-enc AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n L1-1 2026-04-25T03:01:05Z file.write path=C:\\Users\\Public\\payload.exe\n L1-2 2026-04-25T19:50:00Z auth.login_success user=alice src_ip=10.0.0.137\n L1-3 2026-04-25T19:50:02Z auth.login_success user=carol src_ip=10.0.0.190\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage3_mixed", "seed": 101223, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 3 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T14:40:00Z net.beacon dst_ip=10.0.184.245 interval_s=90\n L1-1 2026-04-25T16:50:00Z net.outbound_connection dst_ip=10.0.189.244 bytes_out=67893\n L1-2 2026-04-25T16:50:02Z net.outbound_connection dst_ip=10.0.64.154 bytes_out=2793\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage3_mixed", "seed": 101224, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: c2_beacon: 3 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T14:55:00Z net.beacon dst_ip=203.0.113.5 interval_s=30\n L1-1 2026-04-25T19:14:00Z auth.login_success user=alice src_ip=10.0.0.50\n L1-2 2026-04-25T19:14:02Z net.dns_query domain=google.com\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage3_mixed", "seed": 101225, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: phishing: 3 event(s); first=email.link_clicked\nLOG_WINDOW:\n L1-0 2026-04-25T05:24:00Z email.link_clicked url=https://login-update.top/secure user=carol\n L1-1 2026-04-25T08:12:00Z net.dns_query domain=github.com\n L1-2 2026-04-25T08:12:02Z auth.login_success user=bob src_ip=10.0.0.98\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage3_mixed", "seed": 101226, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 3 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T06:56:00Z auth.login_success user=erin src_ip=10.0.0.39\n L1-1 2026-04-25T22:36:00Z net.outbound_connection dst_ip=10.0.66.109 bytes_out=58492\n L1-2 2026-04-25T22:36:02Z auth.login_success user=dave src_ip=10.0.0.111\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"dismiss\", \"cited_log_id\": \"L1-2\", \"rationale\": \"No malicious indicators in the log window.\"}"}], "task_id": "stage3_mixed", "seed": 101227, "ground_truth": "dismiss"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: brute_force: 7 event(s); first=auth.login_failure\nLOG_WINDOW:\n L1-0 2026-04-25T06:40:00Z auth.login_failure user=service_acct src_ip=203.0.113.129\n L1-1 2026-04-25T06:40:05Z auth.login_failure user=service_acct src_ip=203.0.113.129\n L1-2 2026-04-25T06:40:10Z auth.login_failure user=service_acct src_ip=203.0.113.40\n L1-3 2026-04-25T06:40:15Z auth.login_failure user=service_acct src_ip=203.0.113.68\n L1-4 2026-04-25T06:40:20Z auth.login_failure user=service_acct src_ip=203.0.113.108\n L1-5 2026-04-25T07:10:00Z net.dns_query domain=internal.corp\n L1-6 2026-04-25T07:10:02Z auth.login_success user=carol src_ip=10.0.0.124\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-6\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage3_mixed", "seed": 101228, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: c2_beacon: 3 event(s); first=net.outbound_connection\nLOG_WINDOW:\n L1-0 2026-04-25T09:39:00Z net.outbound_connection dst_ip=10.0.34.232 bytes_out=97483\n L1-1 2026-04-25T09:39:02Z net.dns_query domain=internal.corp\n L1-2 2026-04-25T10:14:00Z net.beacon dst_ip=185.220.101.7 interval_s=90\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-2\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage3_mixed", "seed": 101229, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 4 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T14:22:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n L1-1 2026-04-25T14:22:05Z file.write path=C:\\Users\\Public\\svc.exe\n L1-2 2026-04-25T16:52:00Z auth.login_success user=carol src_ip=10.0.0.135\n L1-3 2026-04-25T16:52:02Z net.dns_query domain=internal.corp\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage3_mixed", "seed": 101230, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 3 event(s); first=net.dns_query\nLOG_WINDOW:\n L1-0 2026-04-25T02:03:00Z net.dns_query domain=internal.corp\n L1-1 2026-04-25T02:03:02Z net.dns_query domain=internal.corp\n L1-2 2026-04-25T17:58:00Z auth.login_success user=carol src_ip=10.0.0.25\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"dismiss\", \"cited_log_id\": \"L1-2\", \"rationale\": \"No malicious indicators in the log window.\"}"}], "task_id": "stage3_mixed", "seed": 101231, "ground_truth": "dismiss"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 3 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T01:38:00Z net.beacon dst_ip=10.0.59.19 interval_s=60\n L1-1 2026-04-25T06:38:00Z auth.login_success user=carol src_ip=10.0.0.231\n L1-2 2026-04-25T06:38:02Z net.outbound_connection dst_ip=10.0.221.247 bytes_out=93792\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage3_mixed", "seed": 101232, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 3 event(s); first=net.outbound_connection\nLOG_WINDOW:\n L1-0 2026-04-25T02:57:00Z net.outbound_connection dst_ip=10.0.201.89 bytes_out=92064\n L1-1 2026-04-25T02:57:02Z net.outbound_connection dst_ip=10.0.70.164 bytes_out=83046\n L1-2 2026-04-25T11:19:00Z auth.login_success user=bob src_ip=10.0.0.56\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"dismiss\", \"cited_log_id\": \"L1-2\", \"rationale\": \"No malicious indicators in the log window.\"}"}], "task_id": "stage3_mixed", "seed": 101233, "ground_truth": "dismiss"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: brute_force: 11 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T11:23:00Z auth.login_success user=dave src_ip=10.0.0.185\n L1-1 2026-04-25T11:23:02Z auth.login_success user=dave src_ip=10.0.0.56\n L1-2 2026-04-25T15:26:00Z auth.login_failure user=admin src_ip=203.0.113.198\n L1-3 2026-04-25T15:26:05Z auth.login_failure user=admin src_ip=203.0.113.155\n L1-4 2026-04-25T15:26:10Z auth.login_failure user=admin src_ip=203.0.113.155\n L1-5 2026-04-25T15:26:15Z auth.login_failure user=admin src_ip=203.0.113.230\n L1-6 2026-04-25T15:26:20Z auth.login_failure user=admin src_ip=203.0.113.183\n L1-7 2026-04-25T15:26:25Z auth.login_failure user=admin src_ip=203.0.113.20\n L1-8 2026-04-25T15:26:30Z auth.login_failure user=admin src_ip=203.0.113.16\n L1-9 2026-04-25T15:26:35Z auth.login_failure user=admin src_ip=203.0.113.168\n L1-10 2026-04-25T15:26:40Z auth.login_failure user=admin src_ip=203.0.113.40\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-2\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage3_mixed", "seed": 101234, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: brute_force: 10 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T12:25:00Z auth.login_success user=bob src_ip=10.0.0.67\n L1-1 2026-04-25T12:25:02Z auth.login_success user=dave src_ip=10.0.0.174\n L1-2 2026-04-25T17:25:00Z auth.login_failure user=admin src_ip=203.0.113.59\n L1-3 2026-04-25T17:25:05Z auth.login_failure user=admin src_ip=203.0.113.120\n L1-4 2026-04-25T17:25:10Z auth.login_failure user=admin src_ip=203.0.113.184\n L1-5 2026-04-25T17:25:15Z auth.login_failure user=admin src_ip=203.0.113.9\n L1-6 2026-04-25T17:25:20Z auth.login_failure user=admin src_ip=203.0.113.238\n L1-7 2026-04-25T17:25:25Z auth.login_failure user=admin src_ip=203.0.113.195\n L1-8 2026-04-25T17:25:30Z auth.login_failure user=admin src_ip=203.0.113.78\n L1-9 2026-04-25T17:25:35Z auth.login_failure user=admin src_ip=203.0.113.30\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-2\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage3_mixed", "seed": 101235, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: phishing: 3 event(s); first=net.outbound_connection\nLOG_WINDOW:\n L1-0 2026-04-25T09:35:00Z net.outbound_connection dst_ip=10.0.234.70 bytes_out=15302\n L1-1 2026-04-25T09:35:02Z auth.login_success user=bob src_ip=10.0.0.249\n L1-2 2026-04-25T13:59:00Z email.link_clicked url=https://login-update.click/secure user=carol\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-2\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage3_mixed", "seed": 101236, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: phishing: 3 event(s); first=email.link_clicked\nLOG_WINDOW:\n L1-0 2026-04-25T04:02:00Z email.link_clicked url=https://login-update.xyz/secure user=carol\n L1-1 2026-04-25T04:10:00Z net.dns_query domain=github.com\n L1-2 2026-04-25T04:10:02Z net.outbound_connection dst_ip=10.0.164.210 bytes_out=23624\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage3_mixed", "seed": 101237, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 3 event(s); first=net.dns_query\nLOG_WINDOW:\n L1-0 2026-04-25T01:04:00Z net.dns_query domain=internal.corp\n L1-1 2026-04-25T01:04:02Z auth.login_success user=bob src_ip=10.0.0.170\n L1-2 2026-04-25T05:28:00Z net.beacon dst_ip=10.0.159.122 interval_s=60\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-2\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage3_mixed", "seed": 101238, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 3 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T06:25:00Z auth.login_success user=carol src_ip=10.0.0.102\n L1-1 2026-04-25T06:25:02Z net.outbound_connection dst_ip=10.0.116.218 bytes_out=61917\n L1-2 2026-04-25T21:50:00Z net.port_scan_hit src_ip=203.0.113.149 port=3389\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-2\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage3_mixed", "seed": 101239, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: phishing: 3 event(s); first=email.link_clicked\nLOG_WINDOW:\n L1-0 2026-04-25T00:57:00Z email.link_clicked url=https://login-update.xyz/secure user=alice\n L1-1 2026-04-25T05:02:00Z auth.login_success user=alice src_ip=10.0.0.130\n L1-2 2026-04-25T05:02:02Z net.dns_query domain=google.com\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage3_mixed", "seed": 101240, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 3 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T02:32:00Z auth.login_success user=carol src_ip=10.0.0.110\n L1-1 2026-04-25T02:32:02Z net.dns_query domain=github.com\n L1-2 2026-04-25T15:07:00Z net.beacon dst_ip=10.0.109.198 interval_s=60\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-2\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage3_mixed", "seed": 101241, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 3 event(s); first=net.outbound_connection\nLOG_WINDOW:\n L1-0 2026-04-25T06:07:00Z net.outbound_connection dst_ip=10.0.245.32 bytes_out=41495\n L1-1 2026-04-25T06:07:02Z auth.login_success user=bob src_ip=10.0.0.28\n L1-2 2026-04-25T07:54:00Z net.beacon dst_ip=10.0.215.198 interval_s=30\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-2\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage3_mixed", "seed": 101242, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: brute_force: 11 event(s); first=auth.login_failure\nLOG_WINDOW:\n L1-0 2026-04-25T06:52:00Z auth.login_failure user=alice src_ip=203.0.113.11\n L1-1 2026-04-25T06:52:05Z auth.login_failure user=alice src_ip=203.0.113.74\n L1-2 2026-04-25T06:52:10Z auth.login_failure user=alice src_ip=203.0.113.118\n L1-3 2026-04-25T06:52:15Z auth.login_failure user=alice src_ip=203.0.113.54\n L1-4 2026-04-25T06:52:20Z auth.login_failure user=alice src_ip=203.0.113.149\n L1-5 2026-04-25T06:52:25Z auth.login_failure user=alice src_ip=203.0.113.44\n L1-6 2026-04-25T06:52:30Z auth.login_failure user=alice src_ip=203.0.113.101\n L1-7 2026-04-25T06:52:35Z auth.login_failure user=alice src_ip=203.0.113.226\n L1-8 2026-04-25T06:52:40Z auth.login_failure user=alice src_ip=203.0.113.72\n L1-9 2026-04-25T16:07:00Z net.outbound_connection dst_ip=10.0.56.82 bytes_out=4526\n L1-10 2026-04-25T16:07:02Z auth.login_success user=bob src_ip=10.0.0.150\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-10\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage3_mixed", "seed": 101243, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 3 event(s); first=net.outbound_connection\nLOG_WINDOW:\n L1-0 2026-04-25T00:58:00Z net.outbound_connection dst_ip=10.0.154.204 bytes_out=17632\n L1-1 2026-04-25T00:58:02Z auth.login_success user=alice src_ip=10.0.0.36\n L1-2 2026-04-25T21:54:00Z net.port_scan_hit src_ip=203.0.113.24 port=5985\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-2\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage3_mixed", "seed": 101244, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 4 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T00:51:00Z proc.lolbin_use process=powershell.exe parent_process=chrome.exe cmd=-enc AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n L1-1 2026-04-25T00:51:05Z file.write path=C:\\Users\\Public\\payload.exe\n L1-2 2026-04-25T11:16:00Z net.outbound_connection dst_ip=10.0.142.43 bytes_out=25576\n L1-3 2026-04-25T11:16:02Z net.dns_query domain=internal.corp\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage3_mixed", "seed": 101245, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: brute_force: 10 event(s); first=net.dns_query\nLOG_WINDOW:\n L1-0 2026-04-25T00:22:00Z net.dns_query domain=google.com\n L1-1 2026-04-25T00:22:02Z net.outbound_connection dst_ip=10.0.65.130 bytes_out=33925\n L1-2 2026-04-25T08:50:00Z auth.login_failure user=admin src_ip=203.0.113.237\n L1-3 2026-04-25T08:50:05Z auth.login_failure user=admin src_ip=203.0.113.31\n L1-4 2026-04-25T08:50:10Z auth.login_failure user=admin src_ip=203.0.113.64\n L1-5 2026-04-25T08:50:15Z auth.login_failure user=admin src_ip=203.0.113.117\n L1-6 2026-04-25T08:50:20Z auth.login_failure user=admin src_ip=203.0.113.191\n L1-7 2026-04-25T08:50:25Z auth.login_failure user=admin src_ip=203.0.113.85\n L1-8 2026-04-25T08:50:30Z auth.login_failure user=admin src_ip=203.0.113.243\n L1-9 2026-04-25T08:50:35Z auth.login_failure user=admin src_ip=203.0.113.134\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-2\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage3_mixed", "seed": 101246, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 3 event(s); first=net.dns_query\nLOG_WINDOW:\n L1-0 2026-04-25T01:24:00Z net.dns_query domain=github.com\n L1-1 2026-04-25T01:24:02Z net.dns_query domain=internal.corp\n L1-2 2026-04-25T17:40:00Z edr.behavior_match severity=high rule_id=EDR-3355 host=host-015\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-2\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage3_mixed", "seed": 101247, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 5 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T00:45:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB\n L1-1 2026-04-25T00:45:15Z net.beacon dst_ip=203.0.113.5 interval_s=30\n L1-2 2026-04-25T00:45:30Z auth.privilege_grant user=bob role=admin\n L1-3 2026-04-25T17:23:00Z net.dns_query domain=google.com\n L1-4 2026-04-25T17:23:02Z net.outbound_connection dst_ip=10.0.66.127 bytes_out=19231\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"escalate\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Combined endpoint and network compromise signals \\u2014 page on-call.\"}"}], "task_id": "stage3_mixed", "seed": 101248, "ground_truth": "escalate"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 5 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T15:22:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB\n L1-1 2026-04-25T15:22:15Z net.beacon dst_ip=203.0.113.5 interval_s=30\n L1-2 2026-04-25T15:22:30Z auth.privilege_grant user=bob role=admin\n L1-3 2026-04-25T15:40:00Z net.outbound_connection dst_ip=10.0.159.205 bytes_out=7871\n L1-4 2026-04-25T15:40:02Z net.dns_query domain=google.com\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"escalate\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Combined endpoint and network compromise signals \\u2014 page on-call.\"}"}], "task_id": "stage3_mixed", "seed": 101249, "ground_truth": "escalate"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: brute_force: 9 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T08:28:00Z auth.login_success user=carol src_ip=10.0.0.17\n L1-1 2026-04-25T08:28:02Z auth.login_success user=carol src_ip=10.0.0.181\n L1-2 2026-04-25T18:28:00Z auth.login_failure user=service_acct src_ip=203.0.113.76\n L1-3 2026-04-25T18:28:05Z auth.login_failure user=service_acct src_ip=203.0.113.152\n L1-4 2026-04-25T18:28:10Z auth.login_failure user=service_acct src_ip=203.0.113.127\n L1-5 2026-04-25T18:28:15Z auth.login_failure user=service_acct src_ip=203.0.113.193\n L1-6 2026-04-25T18:28:20Z auth.login_failure user=service_acct src_ip=203.0.113.233\n L1-7 2026-04-25T18:28:25Z auth.login_failure user=service_acct src_ip=203.0.113.18\n L1-8 2026-04-25T18:28:30Z auth.login_failure user=service_acct src_ip=203.0.113.51\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-2\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage3_mixed", "seed": 101250, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 3 event(s); first=net.dns_query\nLOG_WINDOW:\n L1-0 2026-04-25T13:50:00Z net.dns_query domain=internal.corp\n L1-1 2026-04-25T13:50:02Z net.dns_query domain=internal.corp\n L1-2 2026-04-25T15:16:00Z auth.login_success user=erin src_ip=10.0.0.125\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"dismiss\", \"cited_log_id\": \"L1-2\", \"rationale\": \"No malicious indicators in the log window.\"}"}], "task_id": "stage3_mixed", "seed": 101251, "ground_truth": "dismiss"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 3 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T03:55:00Z auth.login_success user=carol src_ip=10.0.0.53\n L1-1 2026-04-25T14:00:00Z net.outbound_connection dst_ip=10.0.25.169 bytes_out=3660\n L1-2 2026-04-25T14:00:02Z net.outbound_connection dst_ip=10.0.201.242 bytes_out=75086\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"dismiss\", \"cited_log_id\": \"L1-2\", \"rationale\": \"No malicious indicators in the log window.\"}"}], "task_id": "stage3_mixed", "seed": 101252, "ground_truth": "dismiss"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 3 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T15:20:00Z auth.login_success user=carol src_ip=10.0.0.203\n L1-1 2026-04-25T15:20:02Z auth.login_success user=bob src_ip=10.0.0.71\n L1-2 2026-04-25T15:43:00Z auth.login_success user=alice src_ip=10.0.0.159\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"dismiss\", \"cited_log_id\": \"L1-2\", \"rationale\": \"No malicious indicators in the log window.\"}"}], "task_id": "stage3_mixed", "seed": 101253, "ground_truth": "dismiss"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: c2_beacon: 3 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T01:28:00Z net.beacon dst_ip=203.0.113.5 interval_s=90\n L1-1 2026-04-25T12:11:00Z net.dns_query domain=google.com\n L1-2 2026-04-25T12:11:02Z net.dns_query domain=google.com\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage3_mixed", "seed": 101254, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 3 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T16:19:00Z auth.login_success user=dave src_ip=10.0.0.87\n L1-1 2026-04-25T19:37:00Z net.outbound_connection dst_ip=10.0.28.180 bytes_out=98462\n L1-2 2026-04-25T19:37:02Z auth.login_success user=carol src_ip=10.0.0.124\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"dismiss\", \"cited_log_id\": \"L1-2\", \"rationale\": \"No malicious indicators in the log window.\"}"}], "task_id": "stage3_mixed", "seed": 101255, "ground_truth": "dismiss"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 3 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T01:17:00Z auth.login_success user=bob src_ip=10.0.0.202\n L1-1 2026-04-25T01:17:02Z auth.login_success user=bob src_ip=10.0.0.244\n L1-2 2026-04-25T16:13:00Z net.port_scan_hit src_ip=203.0.113.230 port=22\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-2\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage3_mixed", "seed": 101256, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 3 event(s); first=net.outbound_connection\nLOG_WINDOW:\n L1-0 2026-04-25T02:48:00Z net.outbound_connection dst_ip=10.0.30.249 bytes_out=13601\n L1-1 2026-04-25T02:48:02Z net.dns_query domain=github.com\n L1-2 2026-04-25T14:13:00Z net.port_scan_hit src_ip=203.0.113.211 port=5985\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-2\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage3_mixed", "seed": 101257, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 3 event(s); first=net.port_scan_hit\nLOG_WINDOW:\n L1-0 2026-04-25T04:10:00Z net.port_scan_hit src_ip=203.0.113.15 port=445\n L1-1 2026-04-25T14:24:00Z net.dns_query domain=internal.corp\n L1-2 2026-04-25T14:24:02Z net.dns_query domain=internal.corp\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage3_mixed", "seed": 101258, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 4 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T10:58:00Z proc.lolbin_use process=powershell.exe parent_process=winword.exe cmd=-enc AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n L1-1 2026-04-25T10:58:05Z file.write path=C:\\Users\\Public\\payload.exe\n L1-2 2026-04-25T17:44:00Z auth.login_success user=dave src_ip=10.0.0.232\n L1-3 2026-04-25T17:44:02Z auth.login_success user=bob src_ip=10.0.0.89\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage3_mixed", "seed": 101259, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 4 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T17:52:00Z proc.lolbin_use process=powershell.exe parent_process=winword.exe cmd=-enc AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n L1-1 2026-04-25T17:52:05Z file.write path=C:\\Users\\Public\\payload.exe\n L1-2 2026-04-25T19:32:00Z auth.login_success user=bob src_ip=10.0.0.130\n L1-3 2026-04-25T19:32:02Z net.outbound_connection dst_ip=10.0.215.119 bytes_out=59727\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage3_mixed", "seed": 101260, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 3 event(s); first=net.dns_query\nLOG_WINDOW:\n L1-0 2026-04-25T19:51:00Z net.dns_query domain=github.com\n L1-1 2026-04-25T19:51:02Z net.outbound_connection dst_ip=10.0.146.44 bytes_out=78786\n L1-2 2026-04-25T21:23:00Z edr.behavior_match severity=high rule_id=EDR-2659 host=host-011\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-2\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage3_mixed", "seed": 101261, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 3 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T21:59:00Z net.beacon dst_ip=10.0.142.58 interval_s=30\n L1-1 2026-04-25T22:39:00Z net.outbound_connection dst_ip=10.0.69.92 bytes_out=93149\n L1-2 2026-04-25T22:39:02Z net.dns_query domain=google.com\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage3_mixed", "seed": 101262, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 3 event(s); first=net.outbound_connection\nLOG_WINDOW:\n L1-0 2026-04-25T03:41:00Z net.outbound_connection dst_ip=10.0.160.76 bytes_out=71923\n L1-1 2026-04-25T03:41:02Z net.outbound_connection dst_ip=10.0.182.93 bytes_out=77242\n L1-2 2026-04-25T09:24:00Z net.port_scan_hit src_ip=203.0.113.57 port=445\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-2\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage3_mixed", "seed": 101263, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 3 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T10:34:00Z auth.login_success user=bob src_ip=10.0.0.71\n L1-1 2026-04-25T10:34:02Z net.dns_query domain=google.com\n L1-2 2026-04-25T12:21:00Z edr.behavior_match severity=high rule_id=EDR-3804 host=host-007\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-2\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage3_mixed", "seed": 101264, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: phishing: 3 event(s); first=email.link_clicked\nLOG_WINDOW:\n L1-0 2026-04-25T02:23:00Z email.link_clicked url=https://login-update.click/secure user=carol\n L1-1 2026-04-25T07:24:00Z auth.login_success user=alice src_ip=10.0.0.212\n L1-2 2026-04-25T07:24:02Z net.outbound_connection dst_ip=10.0.28.216 bytes_out=27925\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage3_mixed", "seed": 101265, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 4 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T20:59:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n L1-1 2026-04-25T20:59:00Z net.dns_query domain=github.com\n L1-2 2026-04-25T20:59:02Z net.dns_query domain=google.com\n L1-3 2026-04-25T20:59:05Z file.write path=C:\\Users\\Public\\payload.exe\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage3_mixed", "seed": 101266, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: brute_force: 8 event(s); first=net.dns_query\nLOG_WINDOW:\n L1-0 2026-04-25T07:05:00Z net.dns_query domain=github.com\n L1-1 2026-04-25T07:05:02Z net.outbound_connection dst_ip=10.0.82.150 bytes_out=71154\n L1-2 2026-04-25T18:26:00Z auth.login_failure user=service_acct src_ip=203.0.113.115\n L1-3 2026-04-25T18:26:05Z auth.login_failure user=service_acct src_ip=203.0.113.250\n L1-4 2026-04-25T18:26:10Z auth.login_failure user=service_acct src_ip=203.0.113.189\n L1-5 2026-04-25T18:26:15Z auth.login_failure user=service_acct src_ip=203.0.113.118\n L1-6 2026-04-25T18:26:20Z auth.login_failure user=service_acct src_ip=203.0.113.147\n L1-7 2026-04-25T18:26:25Z auth.login_failure user=service_acct src_ip=203.0.113.219\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-2\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage3_mixed", "seed": 101267, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: phishing: 3 event(s); first=email.link_clicked\nLOG_WINDOW:\n L1-0 2026-04-25T11:27:00Z email.link_clicked url=https://login-update.cn/secure user=carol\n L1-1 2026-04-25T13:52:00Z auth.login_success user=alice src_ip=10.0.0.151\n L1-2 2026-04-25T13:52:02Z net.dns_query domain=github.com\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage3_mixed", "seed": 101268, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: brute_force: 11 event(s); first=auth.login_failure\nLOG_WINDOW:\n L1-0 2026-04-25T00:17:00Z auth.login_failure user=alice src_ip=203.0.113.47\n L1-1 2026-04-25T00:17:05Z auth.login_failure user=alice src_ip=203.0.113.241\n L1-2 2026-04-25T00:17:10Z auth.login_failure user=alice src_ip=203.0.113.239\n L1-3 2026-04-25T00:17:15Z auth.login_failure user=alice src_ip=203.0.113.222\n L1-4 2026-04-25T00:17:20Z auth.login_failure user=alice src_ip=203.0.113.41\n L1-5 2026-04-25T00:17:25Z auth.login_failure user=alice src_ip=203.0.113.133\n L1-6 2026-04-25T00:17:30Z auth.login_failure user=alice src_ip=203.0.113.120\n L1-7 2026-04-25T00:17:35Z auth.login_failure user=alice src_ip=203.0.113.154\n L1-8 2026-04-25T00:17:40Z auth.login_failure user=alice src_ip=203.0.113.14\n L1-9 2026-04-25T12:49:00Z net.dns_query domain=github.com\n L1-10 2026-04-25T12:49:02Z auth.login_success user=dave src_ip=10.0.0.249\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-10\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage3_mixed", "seed": 101269, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 3 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T00:25:00Z auth.login_success user=alice src_ip=10.0.0.74\n L1-1 2026-04-25T00:25:02Z net.outbound_connection dst_ip=10.0.233.190 bytes_out=1836\n L1-2 2026-04-25T18:10:00Z edr.behavior_match severity=high rule_id=EDR-2301 host=host-017\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-2\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage3_mixed", "seed": 101270, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 3 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T01:24:00Z net.beacon dst_ip=10.0.10.149 interval_s=90\n L1-1 2026-04-25T12:13:00Z net.outbound_connection dst_ip=10.0.6.23 bytes_out=88689\n L1-2 2026-04-25T12:13:02Z net.outbound_connection dst_ip=10.0.145.202 bytes_out=81167\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage3_mixed", "seed": 101271, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 3 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T05:23:00Z auth.login_success user=alice src_ip=10.0.0.36\n L1-1 2026-04-25T05:23:02Z auth.login_success user=carol src_ip=10.0.0.121\n L1-2 2026-04-25T22:33:00Z auth.login_success user=dave src_ip=10.0.0.132\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"dismiss\", \"cited_log_id\": \"L1-2\", \"rationale\": \"No malicious indicators in the log window.\"}"}], "task_id": "stage3_mixed", "seed": 101272, "ground_truth": "dismiss"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 4 event(s); first=net.dns_query\nLOG_WINDOW:\n L1-0 2026-04-25T07:49:00Z net.dns_query domain=google.com\n L1-1 2026-04-25T07:49:02Z net.dns_query domain=github.com\n L1-2 2026-04-25T16:09:00Z proc.lolbin_use process=powershell.exe parent_process=chrome.exe cmd=-enc AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n L1-3 2026-04-25T16:09:05Z file.write path=C:\\Users\\Public\\tmp.exe\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-2\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage3_mixed", "seed": 101273, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 3 event(s); first=net.dns_query\nLOG_WINDOW:\n L1-0 2026-04-25T17:00:00Z net.dns_query domain=github.com\n L1-1 2026-04-25T17:00:02Z auth.login_success user=dave src_ip=10.0.0.233\n L1-2 2026-04-25T22:00:00Z auth.login_success user=carol src_ip=10.0.0.140\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"dismiss\", \"cited_log_id\": \"L1-2\", \"rationale\": \"No malicious indicators in the log window.\"}"}], "task_id": "stage3_mixed", "seed": 101274, "ground_truth": "dismiss"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: brute_force: 9 event(s); first=net.outbound_connection\nLOG_WINDOW:\n L1-0 2026-04-25T09:27:00Z net.outbound_connection dst_ip=10.0.52.37 bytes_out=77459\n L1-1 2026-04-25T09:27:02Z net.outbound_connection dst_ip=10.0.146.173 bytes_out=65508\n L1-2 2026-04-25T09:35:00Z auth.login_failure user=alice src_ip=203.0.113.60\n L1-3 2026-04-25T09:35:05Z auth.login_failure user=alice src_ip=203.0.113.190\n L1-4 2026-04-25T09:35:10Z auth.login_failure user=alice src_ip=203.0.113.158\n L1-5 2026-04-25T09:35:15Z auth.login_failure user=alice src_ip=203.0.113.35\n L1-6 2026-04-25T09:35:20Z auth.login_failure user=alice src_ip=203.0.113.168\n L1-7 2026-04-25T09:35:25Z auth.login_failure user=alice src_ip=203.0.113.169\n L1-8 2026-04-25T09:35:30Z auth.login_failure user=alice src_ip=203.0.113.7\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-2\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage3_mixed", "seed": 101275, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 3 event(s); first=net.port_scan_hit\nLOG_WINDOW:\n L1-0 2026-04-25T11:18:00Z net.port_scan_hit src_ip=203.0.113.95 port=3389\n L1-1 2026-04-25T16:11:00Z auth.login_success user=carol src_ip=10.0.0.166\n L1-2 2026-04-25T16:11:02Z auth.login_success user=alice src_ip=10.0.0.92\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage3_mixed", "seed": 101276, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: brute_force: 8 event(s); first=net.outbound_connection\nLOG_WINDOW:\n L1-0 2026-04-25T03:17:00Z net.outbound_connection dst_ip=10.0.242.53 bytes_out=99225\n L1-1 2026-04-25T03:17:02Z net.dns_query domain=google.com\n L1-2 2026-04-25T15:00:00Z auth.login_failure user=root src_ip=203.0.113.63\n L1-3 2026-04-25T15:00:05Z auth.login_failure user=root src_ip=203.0.113.82\n L1-4 2026-04-25T15:00:10Z auth.login_failure user=root src_ip=203.0.113.121\n L1-5 2026-04-25T15:00:15Z auth.login_failure user=root src_ip=203.0.113.67\n L1-6 2026-04-25T15:00:20Z auth.login_failure user=root src_ip=203.0.113.75\n L1-7 2026-04-25T15:00:25Z auth.login_failure user=root src_ip=203.0.113.206\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-2\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage3_mixed", "seed": 101277, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: c2_beacon: 3 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T00:55:00Z net.beacon dst_ip=185.220.101.7 interval_s=60\n L1-1 2026-04-25T15:40:00Z net.dns_query domain=google.com\n L1-2 2026-04-25T15:40:02Z net.outbound_connection dst_ip=10.0.71.105 bytes_out=48618\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage3_mixed", "seed": 101278, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 3 event(s); first=net.port_scan_hit\nLOG_WINDOW:\n L1-0 2026-04-25T22:17:00Z net.port_scan_hit src_ip=203.0.113.220 port=23\n L1-1 2026-04-25T22:24:00Z net.outbound_connection dst_ip=10.0.89.110 bytes_out=77423\n L1-2 2026-04-25T22:24:02Z auth.login_success user=bob src_ip=10.0.0.171\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage3_mixed", "seed": 101279, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 5 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T03:45:00Z auth.login_success user=alice src_ip=10.0.0.22\n L1-1 2026-04-25T03:45:02Z net.dns_query domain=github.com\n L1-2 2026-04-25T14:52:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB\n L1-3 2026-04-25T14:52:15Z net.beacon dst_ip=203.0.113.5 interval_s=30\n L1-4 2026-04-25T14:52:30Z auth.privilege_grant user=alice role=admin\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"escalate\", \"cited_log_id\": \"L1-2\", \"rationale\": \"Combined endpoint and network compromise signals \\u2014 page on-call.\"}"}], "task_id": "stage3_mixed", "seed": 101280, "ground_truth": "escalate"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 5 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T10:45:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB\n L1-1 2026-04-25T10:45:15Z net.beacon dst_ip=203.0.113.5 interval_s=30\n L1-2 2026-04-25T10:45:30Z auth.privilege_grant user=alice role=admin\n L1-3 2026-04-25T13:47:00Z net.outbound_connection dst_ip=10.0.51.187 bytes_out=37248\n L1-4 2026-04-25T13:47:02Z auth.login_success user=bob src_ip=10.0.0.48\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"escalate\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Combined endpoint and network compromise signals \\u2014 page on-call.\"}"}], "task_id": "stage3_mixed", "seed": 101281, "ground_truth": "escalate"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 5 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T21:09:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB\n L1-1 2026-04-25T21:09:15Z net.beacon dst_ip=203.0.113.5 interval_s=30\n L1-2 2026-04-25T21:09:30Z auth.privilege_grant user=bob role=admin\n L1-3 2026-04-25T21:15:00Z net.dns_query domain=google.com\n L1-4 2026-04-25T21:15:02Z net.outbound_connection dst_ip=10.0.47.94 bytes_out=25706\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"escalate\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Combined endpoint and network compromise signals \\u2014 page on-call.\"}"}], "task_id": "stage3_mixed", "seed": 101282, "ground_truth": "escalate"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: brute_force: 10 event(s); first=auth.login_failure\nLOG_WINDOW:\n L1-0 2026-04-25T08:14:00Z auth.login_failure user=root src_ip=203.0.113.49\n L1-1 2026-04-25T08:14:05Z auth.login_failure user=root src_ip=203.0.113.80\n L1-2 2026-04-25T08:14:10Z auth.login_failure user=root src_ip=203.0.113.17\n L1-3 2026-04-25T08:14:15Z auth.login_failure user=root src_ip=203.0.113.242\n L1-4 2026-04-25T08:14:20Z auth.login_failure user=root src_ip=203.0.113.16\n L1-5 2026-04-25T08:14:25Z auth.login_failure user=root src_ip=203.0.113.31\n L1-6 2026-04-25T08:14:30Z auth.login_failure user=root src_ip=203.0.113.185\n L1-7 2026-04-25T08:14:35Z auth.login_failure user=root src_ip=203.0.113.8\n L1-8 2026-04-25T19:41:00Z net.outbound_connection dst_ip=10.0.196.54 bytes_out=98073\n L1-9 2026-04-25T19:41:02Z auth.login_success user=carol src_ip=10.0.0.75\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-9\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage3_mixed", "seed": 101283, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 4 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T06:43:00Z proc.lolbin_use process=powershell.exe parent_process=excel.exe cmd=-enc AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n L1-1 2026-04-25T06:43:05Z file.write path=C:\\Users\\Public\\svc.exe\n L1-2 2026-04-25T17:29:00Z auth.login_success user=carol src_ip=10.0.0.112\n L1-3 2026-04-25T17:29:02Z net.dns_query domain=internal.corp\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage3_mixed", "seed": 101284, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 3 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T11:37:00Z auth.login_success user=alice src_ip=10.0.0.150\n L1-1 2026-04-25T11:37:02Z net.dns_query domain=github.com\n L1-2 2026-04-25T14:54:00Z net.port_scan_hit src_ip=203.0.113.119 port=5985\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-2\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage3_mixed", "seed": 101285, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 5 event(s); first=net.dns_query\nLOG_WINDOW:\n L1-0 2026-04-25T01:27:00Z net.dns_query domain=google.com\n L1-1 2026-04-25T01:27:02Z net.dns_query domain=internal.corp\n L1-2 2026-04-25T15:15:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB\n L1-3 2026-04-25T15:15:15Z net.beacon dst_ip=203.0.113.5 interval_s=30\n L1-4 2026-04-25T15:15:30Z auth.privilege_grant user=bob role=admin\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"escalate\", \"cited_log_id\": \"L1-2\", \"rationale\": \"Combined endpoint and network compromise signals \\u2014 page on-call.\"}"}], "task_id": "stage3_mixed", "seed": 101286, "ground_truth": "escalate"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 3 event(s); first=edr.behavior_match\nLOG_WINDOW:\n L1-0 2026-04-25T04:34:00Z edr.behavior_match severity=high rule_id=EDR-6878 host=host-021\n L1-1 2026-04-25T13:45:00Z net.dns_query domain=google.com\n L1-2 2026-04-25T13:45:02Z auth.login_success user=alice src_ip=10.0.0.85\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage3_mixed", "seed": 101287, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 3 event(s); first=net.dns_query\nLOG_WINDOW:\n L1-0 2026-04-25T06:44:00Z net.dns_query domain=internal.corp\n L1-1 2026-04-25T06:44:02Z net.dns_query domain=google.com\n L1-2 2026-04-25T11:49:00Z edr.behavior_match severity=high rule_id=EDR-9697 host=host-023\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-2\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage3_mixed", "seed": 101288, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 4 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T09:22:00Z proc.lolbin_use process=powershell.exe parent_process=winword.exe cmd=-enc AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n L1-1 2026-04-25T09:22:05Z file.write path=C:\\Users\\Public\\tmp.exe\n L1-2 2026-04-25T22:17:00Z auth.login_success user=dave src_ip=10.0.0.232\n L1-3 2026-04-25T22:17:02Z auth.login_success user=carol src_ip=10.0.0.225\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage3_mixed", "seed": 101289, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: brute_force: 7 event(s); first=auth.login_failure\nLOG_WINDOW:\n L1-0 2026-04-25T05:04:00Z auth.login_failure user=service_acct src_ip=203.0.113.203\n L1-1 2026-04-25T05:04:05Z auth.login_failure user=service_acct src_ip=203.0.113.154\n L1-2 2026-04-25T05:04:10Z auth.login_failure user=service_acct src_ip=203.0.113.246\n L1-3 2026-04-25T05:04:15Z auth.login_failure user=service_acct src_ip=203.0.113.66\n L1-4 2026-04-25T05:04:20Z auth.login_failure user=service_acct src_ip=203.0.113.19\n L1-5 2026-04-25T15:04:00Z auth.login_success user=alice src_ip=10.0.0.236\n L1-6 2026-04-25T15:04:02Z net.outbound_connection dst_ip=10.0.90.66 bytes_out=8577\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-5\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage3_mixed", "seed": 101290, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 3 event(s); first=net.dns_query\nLOG_WINDOW:\n L1-0 2026-04-25T07:16:00Z net.dns_query domain=google.com\n L1-1 2026-04-25T07:16:02Z auth.login_success user=carol src_ip=10.0.0.140\n L1-2 2026-04-25T21:49:00Z net.beacon dst_ip=10.0.103.115 interval_s=90\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-2\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage3_mixed", "seed": 101291, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 3 event(s); first=net.outbound_connection\nLOG_WINDOW:\n L1-0 2026-04-25T11:47:00Z net.outbound_connection dst_ip=10.0.127.180 bytes_out=73179\n L1-1 2026-04-25T11:47:02Z net.outbound_connection dst_ip=10.0.237.185 bytes_out=70872\n L1-2 2026-04-25T21:16:00Z net.beacon dst_ip=10.0.100.224 interval_s=90\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-2\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage3_mixed", "seed": 101292, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 4 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T12:11:00Z proc.lolbin_use process=powershell.exe parent_process=winword.exe cmd=-enc AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n L1-1 2026-04-25T12:11:05Z file.write path=C:\\Users\\Public\\payload.exe\n L1-2 2026-04-25T21:09:00Z net.outbound_connection dst_ip=10.0.49.208 bytes_out=18438\n L1-3 2026-04-25T21:09:02Z net.outbound_connection dst_ip=10.0.139.159 bytes_out=83604\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage3_mixed", "seed": 101293, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 3 event(s); first=net.outbound_connection\nLOG_WINDOW:\n L1-0 2026-04-25T03:24:00Z net.outbound_connection dst_ip=10.0.131.58 bytes_out=54164\n L1-1 2026-04-25T03:24:02Z net.outbound_connection dst_ip=10.0.227.7 bytes_out=40611\n L1-2 2026-04-25T11:08:00Z net.port_scan_hit src_ip=203.0.113.65 port=5985\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-2\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage3_mixed", "seed": 101294, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: brute_force: 10 event(s); first=net.outbound_connection\nLOG_WINDOW:\n L1-0 2026-04-25T12:06:00Z net.outbound_connection dst_ip=10.0.217.201 bytes_out=27611\n L1-1 2026-04-25T12:06:02Z net.outbound_connection dst_ip=10.0.42.249 bytes_out=43912\n L1-2 2026-04-25T20:29:00Z auth.login_failure user=service_acct src_ip=203.0.113.60\n L1-3 2026-04-25T20:29:05Z auth.login_failure user=service_acct src_ip=203.0.113.11\n L1-4 2026-04-25T20:29:10Z auth.login_failure user=service_acct src_ip=203.0.113.89\n L1-5 2026-04-25T20:29:15Z auth.login_failure user=service_acct src_ip=203.0.113.39\n L1-6 2026-04-25T20:29:20Z auth.login_failure user=service_acct src_ip=203.0.113.162\n L1-7 2026-04-25T20:29:25Z auth.login_failure user=service_acct src_ip=203.0.113.34\n L1-8 2026-04-25T20:29:30Z auth.login_failure user=service_acct src_ip=203.0.113.104\n L1-9 2026-04-25T20:29:35Z auth.login_failure user=service_acct src_ip=203.0.113.90\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-2\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage3_mixed", "seed": 101295, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: phishing: 3 event(s); first=email.link_clicked\nLOG_WINDOW:\n L1-0 2026-04-25T12:18:00Z email.link_clicked url=https://login-update.xyz/secure user=alice\n L1-1 2026-04-25T19:55:00Z net.outbound_connection dst_ip=10.0.249.11 bytes_out=7775\n L1-2 2026-04-25T19:55:02Z net.dns_query domain=google.com\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage3_mixed", "seed": 101296, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 3 event(s); first=edr.behavior_match\nLOG_WINDOW:\n L1-0 2026-04-25T15:35:00Z edr.behavior_match severity=high rule_id=EDR-1006 host=host-025\n L1-1 2026-04-25T18:36:00Z net.outbound_connection dst_ip=10.0.203.86 bytes_out=98070\n L1-2 2026-04-25T18:36:02Z auth.login_success user=dave src_ip=10.0.0.237\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage3_mixed", "seed": 101297, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 3 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T18:22:00Z auth.login_success user=carol src_ip=10.0.0.98\n L1-1 2026-04-25T18:59:00Z auth.login_success user=dave src_ip=10.0.0.15\n L1-2 2026-04-25T18:59:02Z net.outbound_connection dst_ip=10.0.112.29 bytes_out=99284\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"dismiss\", \"cited_log_id\": \"L1-2\", \"rationale\": \"No malicious indicators in the log window.\"}"}], "task_id": "stage3_mixed", "seed": 101298, "ground_truth": "dismiss"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 5 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T10:30:00Z auth.login_success user=bob src_ip=10.0.0.3\n L1-1 2026-04-25T10:30:02Z net.dns_query domain=github.com\n L1-2 2026-04-25T15:24:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB\n L1-3 2026-04-25T15:24:15Z net.beacon dst_ip=203.0.113.5 interval_s=30\n L1-4 2026-04-25T15:24:30Z auth.privilege_grant user=bob role=admin\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"escalate\", \"cited_log_id\": \"L1-2\", \"rationale\": \"Combined endpoint and network compromise signals \\u2014 page on-call.\"}"}], "task_id": "stage3_mixed", "seed": 101299, "ground_truth": "escalate"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 3 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T08:08:00Z auth.login_success user=dave src_ip=10.0.0.48\n L1-1 2026-04-25T08:08:02Z net.dns_query domain=github.com\n L1-2 2026-04-25T16:03:00Z auth.login_success user=carol src_ip=10.0.0.145\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"dismiss\", \"cited_log_id\": \"L1-2\", \"rationale\": \"No malicious indicators in the log window.\"}"}], "task_id": "stage3_mixed", "seed": 101300, "ground_truth": "dismiss"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 5 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T00:58:00Z auth.login_success user=bob src_ip=10.0.0.130\n L1-1 2026-04-25T00:58:02Z net.outbound_connection dst_ip=10.0.37.11 bytes_out=28180\n L1-2 2026-04-25T16:45:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB\n L1-3 2026-04-25T16:45:15Z net.beacon dst_ip=203.0.113.5 interval_s=30\n L1-4 2026-04-25T16:45:30Z auth.privilege_grant user=alice role=admin\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"escalate\", \"cited_log_id\": \"L1-2\", \"rationale\": \"Combined endpoint and network compromise signals \\u2014 page on-call.\"}"}], "task_id": "stage3_mixed", "seed": 101301, "ground_truth": "escalate"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 5 event(s); first=net.outbound_connection\nLOG_WINDOW:\n L1-0 2026-04-25T10:52:00Z net.outbound_connection dst_ip=10.0.86.2 bytes_out=94445\n L1-1 2026-04-25T10:52:02Z net.dns_query domain=google.com\n L1-2 2026-04-25T18:54:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB\n L1-3 2026-04-25T18:54:15Z net.beacon dst_ip=203.0.113.5 interval_s=30\n L1-4 2026-04-25T18:54:30Z auth.privilege_grant user=alice role=admin\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"escalate\", \"cited_log_id\": \"L1-2\", \"rationale\": \"Combined endpoint and network compromise signals \\u2014 page on-call.\"}"}], "task_id": "stage3_mixed", "seed": 101302, "ground_truth": "escalate"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 4 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T08:16:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n L1-1 2026-04-25T08:16:05Z file.write path=C:\\Users\\Public\\svc.exe\n L1-2 2026-04-25T17:55:00Z auth.login_success user=alice src_ip=10.0.0.162\n L1-3 2026-04-25T17:55:02Z net.outbound_connection dst_ip=10.0.132.242 bytes_out=83576\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage3_mixed", "seed": 101303, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 5 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T12:56:00Z auth.login_success user=alice src_ip=10.0.0.171\n L1-1 2026-04-25T12:56:02Z auth.login_success user=bob src_ip=10.0.0.202\n L1-2 2026-04-25T18:14:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB\n L1-3 2026-04-25T18:14:15Z net.beacon dst_ip=203.0.113.5 interval_s=30\n L1-4 2026-04-25T18:14:30Z auth.privilege_grant user=alice role=admin\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"escalate\", \"cited_log_id\": \"L1-2\", \"rationale\": \"Combined endpoint and network compromise signals \\u2014 page on-call.\"}"}], "task_id": "stage3_mixed", "seed": 101304, "ground_truth": "escalate"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 3 event(s); first=net.outbound_connection\nLOG_WINDOW:\n L1-0 2026-04-25T18:27:00Z net.outbound_connection dst_ip=10.0.175.74 bytes_out=53651\n L1-1 2026-04-25T18:27:02Z net.outbound_connection dst_ip=10.0.123.238 bytes_out=84208\n L1-2 2026-04-25T19:31:00Z edr.behavior_match severity=high rule_id=EDR-3131 host=host-021\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-2\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage3_mixed", "seed": 101305, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 5 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T06:41:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB\n L1-1 2026-04-25T06:41:15Z net.beacon dst_ip=203.0.113.5 interval_s=30\n L1-2 2026-04-25T06:41:30Z auth.privilege_grant user=alice role=admin\n L1-3 2026-04-25T07:26:00Z net.dns_query domain=google.com\n L1-4 2026-04-25T07:26:02Z net.dns_query domain=github.com\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"escalate\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Combined endpoint and network compromise signals \\u2014 page on-call.\"}"}], "task_id": "stage3_mixed", "seed": 101306, "ground_truth": "escalate"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 3 event(s); first=net.outbound_connection\nLOG_WINDOW:\n L1-0 2026-04-25T09:09:00Z net.outbound_connection dst_ip=10.0.101.106 bytes_out=29732\n L1-1 2026-04-25T09:09:02Z auth.login_success user=bob src_ip=10.0.0.233\n L1-2 2026-04-25T18:48:00Z net.beacon dst_ip=10.0.137.198 interval_s=30\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-2\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage3_mixed", "seed": 101307, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 3 event(s); first=net.dns_query\nLOG_WINDOW:\n L1-0 2026-04-25T00:04:00Z net.dns_query domain=github.com\n L1-1 2026-04-25T00:04:02Z net.dns_query domain=google.com\n L1-2 2026-04-25T13:26:00Z net.port_scan_hit src_ip=203.0.113.12 port=3389\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-2\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage3_mixed", "seed": 101308, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: phishing: 3 event(s); first=net.dns_query\nLOG_WINDOW:\n L1-0 2026-04-25T00:38:00Z net.dns_query domain=google.com\n L1-1 2026-04-25T00:38:02Z net.dns_query domain=google.com\n L1-2 2026-04-25T09:18:00Z email.link_clicked url=https://login-update.click/secure user=alice\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-2\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage3_mixed", "seed": 101309, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 3 event(s); first=edr.behavior_match\nLOG_WINDOW:\n L1-0 2026-04-25T10:33:00Z edr.behavior_match severity=high rule_id=EDR-7009 host=host-015\n L1-1 2026-04-25T17:47:00Z net.dns_query domain=google.com\n L1-2 2026-04-25T17:47:02Z net.dns_query domain=internal.corp\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage3_mixed", "seed": 101310, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 3 event(s); first=net.port_scan_hit\nLOG_WINDOW:\n L1-0 2026-04-25T10:33:00Z net.port_scan_hit src_ip=203.0.113.95 port=23\n L1-1 2026-04-25T20:41:00Z net.dns_query domain=google.com\n L1-2 2026-04-25T20:41:02Z net.outbound_connection dst_ip=10.0.135.10 bytes_out=54441\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage3_mixed", "seed": 101311, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 3 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T04:12:00Z auth.login_success user=erin src_ip=10.0.0.106\n L1-1 2026-04-25T06:04:00Z auth.login_success user=bob src_ip=10.0.0.170\n L1-2 2026-04-25T06:04:02Z net.dns_query domain=internal.corp\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"dismiss\", \"cited_log_id\": \"L1-2\", \"rationale\": \"No malicious indicators in the log window.\"}"}], "task_id": "stage3_mixed", "seed": 101312, "ground_truth": "dismiss"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 5 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T07:24:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB\n L1-1 2026-04-25T07:24:15Z net.beacon dst_ip=203.0.113.5 interval_s=30\n L1-2 2026-04-25T07:24:30Z auth.privilege_grant user=bob role=admin\n L1-3 2026-04-25T12:12:00Z net.dns_query domain=google.com\n L1-4 2026-04-25T12:12:02Z auth.login_success user=dave src_ip=10.0.0.223\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"escalate\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Combined endpoint and network compromise signals \\u2014 page on-call.\"}"}], "task_id": "stage3_mixed", "seed": 101313, "ground_truth": "escalate"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: c2_beacon: 3 event(s); first=net.outbound_connection\nLOG_WINDOW:\n L1-0 2026-04-25T17:20:00Z net.outbound_connection dst_ip=10.0.15.60 bytes_out=92207\n L1-1 2026-04-25T17:20:02Z auth.login_success user=bob src_ip=10.0.0.48\n L1-2 2026-04-25T20:23:00Z net.beacon dst_ip=185.220.101.7 interval_s=30\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-2\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage3_mixed", "seed": 101314, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: brute_force: 9 event(s); first=auth.login_failure\nLOG_WINDOW:\n L1-0 2026-04-25T16:31:00Z auth.login_failure user=root src_ip=203.0.113.132\n L1-1 2026-04-25T16:31:05Z auth.login_failure user=root src_ip=203.0.113.159\n L1-2 2026-04-25T16:31:10Z auth.login_failure user=root src_ip=203.0.113.37\n L1-3 2026-04-25T16:31:15Z auth.login_failure user=root src_ip=203.0.113.68\n L1-4 2026-04-25T16:31:20Z auth.login_failure user=root src_ip=203.0.113.215\n L1-5 2026-04-25T16:31:25Z auth.login_failure user=root src_ip=203.0.113.31\n L1-6 2026-04-25T16:31:30Z auth.login_failure user=root src_ip=203.0.113.152\n L1-7 2026-04-25T17:44:00Z net.dns_query domain=github.com\n L1-8 2026-04-25T17:44:02Z net.outbound_connection dst_ip=10.0.82.241 bytes_out=20017\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage3_mixed", "seed": 101315, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 5 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T16:48:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB\n L1-1 2026-04-25T16:48:15Z net.beacon dst_ip=203.0.113.5 interval_s=30\n L1-2 2026-04-25T16:48:30Z auth.privilege_grant user=alice role=admin\n L1-3 2026-04-25T17:42:00Z net.dns_query domain=github.com\n L1-4 2026-04-25T17:42:02Z net.dns_query domain=github.com\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"escalate\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Combined endpoint and network compromise signals \\u2014 page on-call.\"}"}], "task_id": "stage3_mixed", "seed": 101316, "ground_truth": "escalate"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 3 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T08:22:00Z net.beacon dst_ip=10.0.31.226 interval_s=90\n L1-1 2026-04-25T21:55:00Z net.outbound_connection dst_ip=10.0.159.51 bytes_out=56281\n L1-2 2026-04-25T21:55:02Z net.outbound_connection dst_ip=10.0.6.166 bytes_out=67069\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage3_mixed", "seed": 101317, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: brute_force: 7 event(s); first=auth.login_failure\nLOG_WINDOW:\n L1-0 2026-04-25T20:02:00Z auth.login_failure user=root src_ip=203.0.113.131\n L1-1 2026-04-25T20:02:05Z auth.login_failure user=root src_ip=203.0.113.126\n L1-2 2026-04-25T20:02:10Z auth.login_failure user=root src_ip=203.0.113.130\n L1-3 2026-04-25T20:02:15Z auth.login_failure user=root src_ip=203.0.113.200\n L1-4 2026-04-25T20:02:20Z auth.login_failure user=root src_ip=203.0.113.15\n L1-5 2026-04-25T20:41:00Z net.outbound_connection dst_ip=10.0.165.47 bytes_out=17892\n L1-6 2026-04-25T20:41:02Z net.outbound_connection dst_ip=10.0.62.165 bytes_out=92498\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage3_mixed", "seed": 101318, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 4 event(s); first=net.outbound_connection\nLOG_WINDOW:\n L1-0 2026-04-25T10:50:00Z net.outbound_connection dst_ip=10.0.163.115 bytes_out=1662\n L1-1 2026-04-25T10:50:02Z net.dns_query domain=google.com\n L1-2 2026-04-25T22:31:00Z proc.lolbin_use process=powershell.exe parent_process=chrome.exe cmd=-enc AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n L1-3 2026-04-25T22:31:05Z file.write path=C:\\Users\\Public\\tmp.exe\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-2\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage3_mixed", "seed": 101319, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 3 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T01:45:00Z auth.login_success user=bob src_ip=10.0.0.109\n L1-1 2026-04-25T20:21:00Z net.dns_query domain=internal.corp\n L1-2 2026-04-25T20:21:02Z net.dns_query domain=google.com\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"dismiss\", \"cited_log_id\": \"L1-2\", \"rationale\": \"No malicious indicators in the log window.\"}"}], "task_id": "stage3_mixed", "seed": 101320, "ground_truth": "dismiss"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 3 event(s); first=net.outbound_connection\nLOG_WINDOW:\n L1-0 2026-04-25T07:26:00Z net.outbound_connection dst_ip=10.0.196.241 bytes_out=68017\n L1-1 2026-04-25T07:26:02Z net.outbound_connection dst_ip=10.0.165.52 bytes_out=30892\n L1-2 2026-04-25T17:50:00Z auth.login_success user=erin src_ip=10.0.0.12\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"dismiss\", \"cited_log_id\": \"L1-2\", \"rationale\": \"No malicious indicators in the log window.\"}"}], "task_id": "stage3_mixed", "seed": 101321, "ground_truth": "dismiss"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 3 event(s); first=net.outbound_connection\nLOG_WINDOW:\n L1-0 2026-04-25T12:57:00Z net.outbound_connection dst_ip=10.0.53.229 bytes_out=66963\n L1-1 2026-04-25T12:57:02Z auth.login_success user=carol src_ip=10.0.0.135\n L1-2 2026-04-25T15:53:00Z net.beacon dst_ip=10.0.8.227 interval_s=90\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-2\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage3_mixed", "seed": 101322, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: brute_force: 11 event(s); first=auth.login_failure\nLOG_WINDOW:\n L1-0 2026-04-25T02:45:00Z auth.login_failure user=root src_ip=203.0.113.249\n L1-1 2026-04-25T02:45:05Z auth.login_failure user=root src_ip=203.0.113.234\n L1-2 2026-04-25T02:45:10Z auth.login_failure user=root src_ip=203.0.113.191\n L1-3 2026-04-25T02:45:15Z auth.login_failure user=root src_ip=203.0.113.223\n L1-4 2026-04-25T02:45:20Z auth.login_failure user=root src_ip=203.0.113.185\n L1-5 2026-04-25T02:45:25Z auth.login_failure user=root src_ip=203.0.113.145\n L1-6 2026-04-25T02:45:30Z auth.login_failure user=root src_ip=203.0.113.2\n L1-7 2026-04-25T02:45:35Z auth.login_failure user=root src_ip=203.0.113.129\n L1-8 2026-04-25T02:45:40Z auth.login_failure user=root src_ip=203.0.113.213\n L1-9 2026-04-25T20:17:00Z auth.login_success user=dave src_ip=10.0.0.71\n L1-10 2026-04-25T20:17:02Z net.dns_query domain=github.com\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-9\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage3_mixed", "seed": 101323, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 3 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T04:23:00Z auth.login_success user=carol src_ip=10.0.0.105\n L1-1 2026-04-25T04:23:02Z net.outbound_connection dst_ip=10.0.48.88 bytes_out=34641\n L1-2 2026-04-25T19:19:00Z edr.behavior_match severity=high rule_id=EDR-5436 host=host-007\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-2\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage3_mixed", "seed": 101324, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 3 event(s); first=net.outbound_connection\nLOG_WINDOW:\n L1-0 2026-04-25T03:51:00Z net.outbound_connection dst_ip=10.0.125.191 bytes_out=30874\n L1-1 2026-04-25T03:51:02Z net.dns_query domain=github.com\n L1-2 2026-04-25T21:06:00Z edr.behavior_match severity=high rule_id=EDR-1723 host=host-026\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-2\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage3_mixed", "seed": 101325, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: c2_beacon: 3 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T00:50:00Z net.beacon dst_ip=203.0.113.5 interval_s=30\n L1-1 2026-04-25T19:40:00Z net.dns_query domain=google.com\n L1-2 2026-04-25T19:40:02Z net.outbound_connection dst_ip=10.0.164.31 bytes_out=99477\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage3_mixed", "seed": 101326, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: c2_beacon: 3 event(s); first=net.outbound_connection\nLOG_WINDOW:\n L1-0 2026-04-25T08:03:00Z net.outbound_connection dst_ip=10.0.171.223 bytes_out=63237\n L1-1 2026-04-25T08:03:02Z net.dns_query domain=internal.corp\n L1-2 2026-04-25T08:50:00Z net.beacon dst_ip=185.220.101.7 interval_s=60\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-2\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage3_mixed", "seed": 101327, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 3 event(s); first=edr.behavior_match\nLOG_WINDOW:\n L1-0 2026-04-25T06:10:00Z edr.behavior_match severity=high rule_id=EDR-8564 host=host-015\n L1-1 2026-04-25T10:49:00Z net.dns_query domain=github.com\n L1-2 2026-04-25T10:49:02Z auth.login_success user=bob src_ip=10.0.0.219\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage3_mixed", "seed": 101328, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 3 event(s); first=net.port_scan_hit\nLOG_WINDOW:\n L1-0 2026-04-25T11:43:00Z net.port_scan_hit src_ip=203.0.113.12 port=3389\n L1-1 2026-04-25T19:11:00Z auth.login_success user=dave src_ip=10.0.0.161\n L1-2 2026-04-25T19:11:02Z auth.login_success user=dave src_ip=10.0.0.161\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage3_mixed", "seed": 101329, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 3 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T01:01:00Z net.beacon dst_ip=10.0.23.148 interval_s=30\n L1-1 2026-04-25T07:20:00Z auth.login_success user=alice src_ip=10.0.0.31\n L1-2 2026-04-25T07:20:02Z net.outbound_connection dst_ip=10.0.169.200 bytes_out=15349\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage3_mixed", "seed": 101330, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 5 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T03:00:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB\n L1-1 2026-04-25T03:00:15Z net.beacon dst_ip=203.0.113.5 interval_s=30\n L1-2 2026-04-25T03:00:30Z auth.privilege_grant user=alice role=admin\n L1-3 2026-04-25T22:46:00Z net.dns_query domain=google.com\n L1-4 2026-04-25T22:46:02Z net.dns_query domain=internal.corp\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"escalate\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Combined endpoint and network compromise signals \\u2014 page on-call.\"}"}], "task_id": "stage3_mixed", "seed": 101331, "ground_truth": "escalate"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 3 event(s); first=net.outbound_connection\nLOG_WINDOW:\n L1-0 2026-04-25T06:40:00Z net.outbound_connection dst_ip=10.0.91.215 bytes_out=55045\n L1-1 2026-04-25T06:40:02Z net.outbound_connection dst_ip=10.0.116.215 bytes_out=69059\n L1-2 2026-04-25T18:25:00Z edr.behavior_match severity=high rule_id=EDR-4367 host=host-041\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-2\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage3_mixed", "seed": 101332, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 3 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T06:13:00Z auth.login_success user=bob src_ip=10.0.0.13\n L1-1 2026-04-25T22:29:00Z auth.login_success user=bob src_ip=10.0.0.3\n L1-2 2026-04-25T22:29:02Z net.outbound_connection dst_ip=10.0.118.92 bytes_out=28956\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"dismiss\", \"cited_log_id\": \"L1-2\", \"rationale\": \"No malicious indicators in the log window.\"}"}], "task_id": "stage3_mixed", "seed": 101333, "ground_truth": "dismiss"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 3 event(s); first=net.outbound_connection\nLOG_WINDOW:\n L1-0 2026-04-25T09:28:00Z net.outbound_connection dst_ip=10.0.198.238 bytes_out=99479\n L1-1 2026-04-25T09:28:02Z net.outbound_connection dst_ip=10.0.186.211 bytes_out=55108\n L1-2 2026-04-25T16:37:00Z net.beacon dst_ip=10.0.238.196 interval_s=90\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-2\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage3_mixed", "seed": 101334, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: c2_beacon: 3 event(s); first=net.dns_query\nLOG_WINDOW:\n L1-0 2026-04-25T05:49:00Z net.dns_query domain=internal.corp\n L1-1 2026-04-25T05:49:02Z auth.login_success user=dave src_ip=10.0.0.199\n L1-2 2026-04-25T10:11:00Z net.beacon dst_ip=198.51.100.42 interval_s=30\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-2\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage3_mixed", "seed": 101335, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: brute_force: 10 event(s); first=auth.login_failure\nLOG_WINDOW:\n L1-0 2026-04-25T08:43:00Z auth.login_failure user=service_acct src_ip=203.0.113.148\n L1-1 2026-04-25T08:43:05Z auth.login_failure user=service_acct src_ip=203.0.113.233\n L1-2 2026-04-25T08:43:10Z auth.login_failure user=service_acct src_ip=203.0.113.31\n L1-3 2026-04-25T08:43:15Z auth.login_failure user=service_acct src_ip=203.0.113.170\n L1-4 2026-04-25T08:43:20Z auth.login_failure user=service_acct src_ip=203.0.113.171\n L1-5 2026-04-25T08:43:25Z auth.login_failure user=service_acct src_ip=203.0.113.6\n L1-6 2026-04-25T08:43:30Z auth.login_failure user=service_acct src_ip=203.0.113.79\n L1-7 2026-04-25T08:43:35Z auth.login_failure user=service_acct src_ip=203.0.113.83\n L1-8 2026-04-25T13:00:00Z net.dns_query domain=google.com\n L1-9 2026-04-25T13:00:02Z auth.login_success user=alice src_ip=10.0.0.76\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-9\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage3_mixed", "seed": 101336, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 5 event(s); first=net.outbound_connection\nLOG_WINDOW:\n L1-0 2026-04-25T00:32:00Z net.outbound_connection dst_ip=10.0.20.28 bytes_out=49672\n L1-1 2026-04-25T00:32:02Z net.dns_query domain=internal.corp\n L1-2 2026-04-25T08:36:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB\n L1-3 2026-04-25T08:36:15Z net.beacon dst_ip=203.0.113.5 interval_s=30\n L1-4 2026-04-25T08:36:30Z auth.privilege_grant user=bob role=admin\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"escalate\", \"cited_log_id\": \"L1-2\", \"rationale\": \"Combined endpoint and network compromise signals \\u2014 page on-call.\"}"}], "task_id": "stage3_mixed", "seed": 101337, "ground_truth": "escalate"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: c2_beacon: 3 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T13:44:00Z net.beacon dst_ip=203.0.113.5 interval_s=90\n L1-1 2026-04-25T17:44:00Z net.dns_query domain=internal.corp\n L1-2 2026-04-25T17:44:02Z net.dns_query domain=internal.corp\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage3_mixed", "seed": 101338, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: phishing: 3 event(s); first=email.link_clicked\nLOG_WINDOW:\n L1-0 2026-04-25T01:43:00Z email.link_clicked url=https://login-update.click/secure user=alice\n L1-1 2026-04-25T16:22:00Z auth.login_success user=alice src_ip=10.0.0.29\n L1-2 2026-04-25T16:22:02Z net.dns_query domain=google.com\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage3_mixed", "seed": 101339, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: brute_force: 9 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T04:59:00Z auth.login_success user=alice src_ip=10.0.0.159\n L1-1 2026-04-25T04:59:02Z auth.login_success user=carol src_ip=10.0.0.75\n L1-2 2026-04-25T09:08:00Z auth.login_failure user=service_acct src_ip=203.0.113.125\n L1-3 2026-04-25T09:08:05Z auth.login_failure user=service_acct src_ip=203.0.113.54\n L1-4 2026-04-25T09:08:10Z auth.login_failure user=service_acct src_ip=203.0.113.182\n L1-5 2026-04-25T09:08:15Z auth.login_failure user=service_acct src_ip=203.0.113.184\n L1-6 2026-04-25T09:08:20Z auth.login_failure user=service_acct src_ip=203.0.113.164\n L1-7 2026-04-25T09:08:25Z auth.login_failure user=service_acct src_ip=203.0.113.146\n L1-8 2026-04-25T09:08:30Z auth.login_failure user=service_acct src_ip=203.0.113.187\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-2\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage3_mixed", "seed": 101340, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: c2_beacon: 3 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T02:15:00Z net.beacon dst_ip=198.51.100.42 interval_s=90\n L1-1 2026-04-25T09:15:00Z auth.login_success user=dave src_ip=10.0.0.146\n L1-2 2026-04-25T09:15:02Z net.dns_query domain=google.com\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage3_mixed", "seed": 101341, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 3 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T01:18:00Z auth.login_success user=bob src_ip=10.0.0.145\n L1-1 2026-04-25T01:18:02Z auth.login_success user=dave src_ip=10.0.0.237\n L1-2 2026-04-25T09:22:00Z auth.login_success user=dave src_ip=10.0.0.44\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"dismiss\", \"cited_log_id\": \"L1-2\", \"rationale\": \"No malicious indicators in the log window.\"}"}], "task_id": "stage3_mixed", "seed": 101342, "ground_truth": "dismiss"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 3 event(s); first=net.port_scan_hit\nLOG_WINDOW:\n L1-0 2026-04-25T00:44:00Z net.port_scan_hit src_ip=203.0.113.243 port=3389\n L1-1 2026-04-25T03:09:00Z net.outbound_connection dst_ip=10.0.135.78 bytes_out=60457\n L1-2 2026-04-25T03:09:02Z net.outbound_connection dst_ip=10.0.249.24 bytes_out=96369\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage3_mixed", "seed": 101343, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: phishing: 3 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T03:19:00Z auth.login_success user=dave src_ip=10.0.0.114\n L1-1 2026-04-25T03:19:02Z net.outbound_connection dst_ip=10.0.220.240 bytes_out=33433\n L1-2 2026-04-25T14:17:00Z email.link_clicked url=https://login-update.click/secure user=alice\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-2\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage3_mixed", "seed": 101344, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 3 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T12:02:00Z auth.login_success user=alice src_ip=10.0.0.76\n L1-1 2026-04-25T12:02:02Z net.dns_query domain=github.com\n L1-2 2026-04-25T17:13:00Z edr.behavior_match severity=high rule_id=EDR-7904 host=host-014\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-2\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage3_mixed", "seed": 101345, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 4 event(s); first=net.outbound_connection\nLOG_WINDOW:\n L1-0 2026-04-25T05:07:00Z net.outbound_connection dst_ip=10.0.129.100 bytes_out=66275\n L1-1 2026-04-25T05:07:02Z net.dns_query domain=internal.corp\n L1-2 2026-04-25T21:58:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n L1-3 2026-04-25T21:58:05Z file.write path=C:\\Users\\Public\\tmp.exe\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-2\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage3_mixed", "seed": 101346, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 3 event(s); first=net.outbound_connection\nLOG_WINDOW:\n L1-0 2026-04-25T07:27:00Z net.outbound_connection dst_ip=10.0.127.121 bytes_out=4038\n L1-1 2026-04-25T07:27:02Z net.outbound_connection dst_ip=10.0.62.230 bytes_out=78763\n L1-2 2026-04-25T07:55:00Z auth.login_success user=alice src_ip=10.0.0.144\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"dismiss\", \"cited_log_id\": \"L1-2\", \"rationale\": \"No malicious indicators in the log window.\"}"}], "task_id": "stage3_mixed", "seed": 101347, "ground_truth": "dismiss"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: c2_beacon: 3 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T15:26:00Z net.beacon dst_ip=198.51.100.42 interval_s=30\n L1-1 2026-04-25T19:13:00Z net.outbound_connection dst_ip=10.0.176.13 bytes_out=17561\n L1-2 2026-04-25T19:13:02Z net.dns_query domain=internal.corp\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage3_mixed", "seed": 101348, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 5 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T05:54:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB\n L1-1 2026-04-25T05:54:15Z net.beacon dst_ip=203.0.113.5 interval_s=30\n L1-2 2026-04-25T05:54:30Z auth.privilege_grant user=alice role=admin\n L1-3 2026-04-25T08:17:00Z net.dns_query domain=github.com\n L1-4 2026-04-25T08:17:02Z auth.login_success user=alice src_ip=10.0.0.157\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"escalate\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Combined endpoint and network compromise signals \\u2014 page on-call.\"}"}], "task_id": "stage3_mixed", "seed": 101349, "ground_truth": "escalate"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: brute_force: 7 event(s); first=auth.login_failure\nLOG_WINDOW:\n L1-0 2026-04-25T04:13:00Z auth.login_failure user=root src_ip=203.0.113.4\n L1-1 2026-04-25T04:13:05Z auth.login_failure user=root src_ip=203.0.113.80\n L1-2 2026-04-25T04:13:10Z auth.login_failure user=root src_ip=203.0.113.85\n L1-3 2026-04-25T04:13:15Z auth.login_failure user=root src_ip=203.0.113.126\n L1-4 2026-04-25T04:13:20Z auth.login_failure user=root src_ip=203.0.113.168\n L1-5 2026-04-25T05:36:00Z net.dns_query domain=internal.corp\n L1-6 2026-04-25T05:36:02Z net.dns_query domain=github.com\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage3_mixed", "seed": 101350, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: brute_force: 11 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T03:44:00Z auth.login_success user=alice src_ip=10.0.0.226\n L1-1 2026-04-25T03:44:02Z net.dns_query domain=github.com\n L1-2 2026-04-25T16:19:00Z auth.login_failure user=alice src_ip=203.0.113.246\n L1-3 2026-04-25T16:19:05Z auth.login_failure user=alice src_ip=203.0.113.155\n L1-4 2026-04-25T16:19:10Z auth.login_failure user=alice src_ip=203.0.113.72\n L1-5 2026-04-25T16:19:15Z auth.login_failure user=alice src_ip=203.0.113.212\n L1-6 2026-04-25T16:19:20Z auth.login_failure user=alice src_ip=203.0.113.105\n L1-7 2026-04-25T16:19:25Z auth.login_failure user=alice src_ip=203.0.113.246\n L1-8 2026-04-25T16:19:30Z auth.login_failure user=alice src_ip=203.0.113.162\n L1-9 2026-04-25T16:19:35Z auth.login_failure user=alice src_ip=203.0.113.158\n L1-10 2026-04-25T16:19:40Z auth.login_failure user=alice src_ip=203.0.113.41\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-2\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage3_mixed", "seed": 101351, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 3 event(s); first=net.port_scan_hit\nLOG_WINDOW:\n L1-0 2026-04-25T05:20:00Z net.port_scan_hit src_ip=203.0.113.193 port=3389\n L1-1 2026-04-25T06:43:00Z net.dns_query domain=internal.corp\n L1-2 2026-04-25T06:43:02Z auth.login_success user=alice src_ip=10.0.0.172\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage3_mixed", "seed": 101352, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 3 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T09:04:00Z auth.login_success user=alice src_ip=10.0.0.42\n L1-1 2026-04-25T09:04:02Z auth.login_success user=carol src_ip=10.0.0.42\n L1-2 2026-04-25T22:29:00Z edr.behavior_match severity=high rule_id=EDR-9820 host=host-023\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-2\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage3_mixed", "seed": 101353, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: c2_beacon: 3 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T05:47:00Z net.beacon dst_ip=185.220.101.7 interval_s=30\n L1-1 2026-04-25T22:02:00Z net.dns_query domain=internal.corp\n L1-2 2026-04-25T22:02:02Z net.outbound_connection dst_ip=10.0.105.92 bytes_out=47738\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage3_mixed", "seed": 101354, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: phishing: 3 event(s); first=email.link_clicked\nLOG_WINDOW:\n L1-0 2026-04-25T11:21:00Z email.link_clicked url=https://login-update.ru/secure user=alice\n L1-1 2026-04-25T17:20:00Z net.outbound_connection dst_ip=10.0.48.245 bytes_out=25964\n L1-2 2026-04-25T17:20:02Z net.dns_query domain=internal.corp\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage3_mixed", "seed": 101355, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 5 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T02:51:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB\n L1-1 2026-04-25T02:51:15Z net.beacon dst_ip=203.0.113.5 interval_s=30\n L1-2 2026-04-25T02:51:30Z auth.privilege_grant user=bob role=admin\n L1-3 2026-04-25T21:51:00Z auth.login_success user=carol src_ip=10.0.0.15\n L1-4 2026-04-25T21:51:02Z net.dns_query domain=google.com\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"escalate\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Combined endpoint and network compromise signals \\u2014 page on-call.\"}"}], "task_id": "stage3_mixed", "seed": 101356, "ground_truth": "escalate"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 4 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T03:36:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n L1-1 2026-04-25T03:36:05Z file.write path=C:\\Users\\Public\\tmp.exe\n L1-2 2026-04-25T08:32:00Z net.outbound_connection dst_ip=10.0.174.135 bytes_out=18012\n L1-3 2026-04-25T08:32:02Z net.outbound_connection dst_ip=10.0.251.122 bytes_out=85011\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage3_mixed", "seed": 101357, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: brute_force: 10 event(s); first=auth.login_failure\nLOG_WINDOW:\n L1-0 2026-04-25T03:39:00Z auth.login_failure user=root src_ip=203.0.113.22\n L1-1 2026-04-25T03:39:05Z auth.login_failure user=root src_ip=203.0.113.186\n L1-2 2026-04-25T03:39:10Z auth.login_failure user=root src_ip=203.0.113.236\n L1-3 2026-04-25T03:39:15Z auth.login_failure user=root src_ip=203.0.113.209\n L1-4 2026-04-25T03:39:20Z auth.login_failure user=root src_ip=203.0.113.184\n L1-5 2026-04-25T03:39:25Z auth.login_failure user=root src_ip=203.0.113.213\n L1-6 2026-04-25T03:39:30Z auth.login_failure user=root src_ip=203.0.113.65\n L1-7 2026-04-25T03:39:35Z auth.login_failure user=root src_ip=203.0.113.118\n L1-8 2026-04-25T04:18:00Z net.outbound_connection dst_ip=10.0.137.106 bytes_out=30997\n L1-9 2026-04-25T04:18:02Z auth.login_success user=dave src_ip=10.0.0.185\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-9\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage3_mixed", "seed": 101358, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: phishing: 3 event(s); first=email.link_clicked\nLOG_WINDOW:\n L1-0 2026-04-25T16:06:00Z email.link_clicked url=https://login-update.cn/secure user=bob\n L1-1 2026-04-25T21:49:00Z auth.login_success user=carol src_ip=10.0.0.18\n L1-2 2026-04-25T21:49:02Z auth.login_success user=alice src_ip=10.0.0.43\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage3_mixed", "seed": 101359, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 3 event(s); first=edr.behavior_match\nLOG_WINDOW:\n L1-0 2026-04-25T06:02:00Z edr.behavior_match severity=high rule_id=EDR-7705 host=host-030\n L1-1 2026-04-25T21:31:00Z net.outbound_connection dst_ip=10.0.145.112 bytes_out=85425\n L1-2 2026-04-25T21:31:02Z net.outbound_connection dst_ip=10.0.7.76 bytes_out=61211\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage3_mixed", "seed": 101360, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 3 event(s); first=net.outbound_connection\nLOG_WINDOW:\n L1-0 2026-04-25T04:10:00Z net.outbound_connection dst_ip=10.0.151.183 bytes_out=14316\n L1-1 2026-04-25T04:10:02Z net.dns_query domain=google.com\n L1-2 2026-04-25T22:36:00Z edr.behavior_match severity=high rule_id=EDR-9032 host=host-030\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-2\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage3_mixed", "seed": 101361, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 3 event(s); first=net.outbound_connection\nLOG_WINDOW:\n L1-0 2026-04-25T18:12:00Z net.outbound_connection dst_ip=10.0.66.146 bytes_out=48783\n L1-1 2026-04-25T18:12:02Z net.outbound_connection dst_ip=10.0.101.115 bytes_out=62559\n L1-2 2026-04-25T19:25:00Z net.port_scan_hit src_ip=203.0.113.160 port=3389\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-2\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage3_mixed", "seed": 101362, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 3 event(s); first=edr.behavior_match\nLOG_WINDOW:\n L1-0 2026-04-25T02:54:00Z edr.behavior_match severity=high rule_id=EDR-7764 host=host-019\n L1-1 2026-04-25T21:13:00Z net.outbound_connection dst_ip=10.0.249.232 bytes_out=72053\n L1-2 2026-04-25T21:13:02Z net.dns_query domain=internal.corp\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage3_mixed", "seed": 101363, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 3 event(s); first=net.dns_query\nLOG_WINDOW:\n L1-0 2026-04-25T03:13:00Z net.dns_query domain=google.com\n L1-1 2026-04-25T03:13:02Z net.outbound_connection dst_ip=10.0.88.179 bytes_out=37781\n L1-2 2026-04-25T11:31:00Z auth.login_success user=bob src_ip=10.0.0.185\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"dismiss\", \"cited_log_id\": \"L1-2\", \"rationale\": \"No malicious indicators in the log window.\"}"}], "task_id": "stage3_mixed", "seed": 101364, "ground_truth": "dismiss"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 3 event(s); first=edr.behavior_match\nLOG_WINDOW:\n L1-0 2026-04-25T01:00:00Z edr.behavior_match severity=high rule_id=EDR-2229 host=host-007\n L1-1 2026-04-25T06:32:00Z net.outbound_connection dst_ip=10.0.107.2 bytes_out=97900\n L1-2 2026-04-25T06:32:02Z auth.login_success user=dave src_ip=10.0.0.138\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage3_mixed", "seed": 101365, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 3 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T05:51:00Z auth.login_success user=dave src_ip=10.0.0.177\n L1-1 2026-04-25T05:51:02Z net.outbound_connection dst_ip=10.0.128.159 bytes_out=99823\n L1-2 2026-04-25T19:30:00Z auth.login_success user=carol src_ip=10.0.0.133\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"dismiss\", \"cited_log_id\": \"L1-2\", \"rationale\": \"No malicious indicators in the log window.\"}"}], "task_id": "stage3_mixed", "seed": 101366, "ground_truth": "dismiss"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: c2_beacon: 3 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T05:12:00Z net.beacon dst_ip=185.220.101.7 interval_s=30\n L1-1 2026-04-25T16:17:00Z net.outbound_connection dst_ip=10.0.185.68 bytes_out=20425\n L1-2 2026-04-25T16:17:02Z net.outbound_connection dst_ip=10.0.108.200 bytes_out=14774\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage3_mixed", "seed": 101367, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 3 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T00:05:00Z net.beacon dst_ip=10.0.20.18 interval_s=90\n L1-1 2026-04-25T17:39:00Z auth.login_success user=carol src_ip=10.0.0.7\n L1-2 2026-04-25T17:39:02Z net.dns_query domain=google.com\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage3_mixed", "seed": 101368, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: c2_beacon: 3 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T09:44:00Z net.beacon dst_ip=203.0.113.5 interval_s=30\n L1-1 2026-04-25T12:19:00Z auth.login_success user=carol src_ip=10.0.0.222\n L1-2 2026-04-25T12:19:02Z net.outbound_connection dst_ip=10.0.47.209 bytes_out=99243\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage3_mixed", "seed": 101369, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 3 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T09:57:00Z auth.login_success user=dave src_ip=10.0.0.174\n L1-1 2026-04-25T17:50:00Z net.outbound_connection dst_ip=10.0.89.4 bytes_out=59922\n L1-2 2026-04-25T17:50:02Z net.outbound_connection dst_ip=10.0.107.7 bytes_out=97795\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"dismiss\", \"cited_log_id\": \"L1-2\", \"rationale\": \"No malicious indicators in the log window.\"}"}], "task_id": "stage3_mixed", "seed": 101370, "ground_truth": "dismiss"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: phishing: 3 event(s); first=net.dns_query\nLOG_WINDOW:\n L1-0 2026-04-25T09:48:00Z net.dns_query domain=github.com\n L1-1 2026-04-25T09:48:02Z net.dns_query domain=github.com\n L1-2 2026-04-25T12:08:00Z email.link_clicked url=https://login-update.xyz/secure user=carol\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-2\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage3_mixed", "seed": 101371, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 5 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T08:48:00Z auth.login_success user=bob src_ip=10.0.0.25\n L1-1 2026-04-25T08:48:02Z net.outbound_connection dst_ip=10.0.84.87 bytes_out=19395\n L1-2 2026-04-25T11:02:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB\n L1-3 2026-04-25T11:02:15Z net.beacon dst_ip=203.0.113.5 interval_s=30\n L1-4 2026-04-25T11:02:30Z auth.privilege_grant user=bob role=admin\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"escalate\", \"cited_log_id\": \"L1-2\", \"rationale\": \"Combined endpoint and network compromise signals \\u2014 page on-call.\"}"}], "task_id": "stage3_mixed", "seed": 101372, "ground_truth": "escalate"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: c2_beacon: 3 event(s); first=net.outbound_connection\nLOG_WINDOW:\n L1-0 2026-04-25T05:19:00Z net.outbound_connection dst_ip=10.0.148.218 bytes_out=51289\n L1-1 2026-04-25T05:19:02Z auth.login_success user=dave src_ip=10.0.0.54\n L1-2 2026-04-25T06:35:00Z net.beacon dst_ip=198.51.100.42 interval_s=90\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-2\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage3_mixed", "seed": 101373, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: phishing: 3 event(s); first=email.link_clicked\nLOG_WINDOW:\n L1-0 2026-04-25T12:36:00Z email.link_clicked url=https://login-update.ru/secure user=alice\n L1-1 2026-04-25T19:13:00Z net.outbound_connection dst_ip=10.0.204.249 bytes_out=76339\n L1-2 2026-04-25T19:13:02Z net.outbound_connection dst_ip=10.0.174.229 bytes_out=78500\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"External malicious network destination must be blocked.\"}"}], "task_id": "stage3_mixed", "seed": 101374, "ground_truth": "block_ip"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 3 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T12:22:00Z auth.login_success user=bob src_ip=10.0.0.56\n L1-1 2026-04-25T12:22:02Z auth.login_success user=carol src_ip=10.0.0.10\n L1-2 2026-04-25T20:57:00Z edr.behavior_match severity=high rule_id=EDR-6829 host=host-038\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-2\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage3_mixed", "seed": 101375, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 3 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T02:41:00Z net.beacon dst_ip=10.0.21.161 interval_s=30\n L1-1 2026-04-25T04:32:00Z net.outbound_connection dst_ip=10.0.81.198 bytes_out=98584\n L1-2 2026-04-25T04:32:02Z net.dns_query domain=google.com\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage3_mixed", "seed": 101376, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 3 event(s); first=edr.behavior_match\nLOG_WINDOW:\n L1-0 2026-04-25T08:31:00Z edr.behavior_match severity=high rule_id=EDR-6169 host=host-015\n L1-1 2026-04-25T18:33:00Z net.outbound_connection dst_ip=10.0.170.99 bytes_out=10216\n L1-2 2026-04-25T18:33:02Z net.dns_query domain=internal.corp\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage3_mixed", "seed": 101377, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 3 event(s); first=edr.behavior_match\nLOG_WINDOW:\n L1-0 2026-04-25T00:46:00Z edr.behavior_match severity=high rule_id=EDR-6133 host=host-020\n L1-1 2026-04-25T17:52:00Z net.dns_query domain=google.com\n L1-2 2026-04-25T17:52:02Z net.outbound_connection dst_ip=10.0.114.13 bytes_out=12599\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage3_mixed", "seed": 101378, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 3 event(s); first=net.outbound_connection\nLOG_WINDOW:\n L1-0 2026-04-25T10:13:00Z net.outbound_connection dst_ip=10.0.31.215 bytes_out=90741\n L1-1 2026-04-25T10:13:02Z net.outbound_connection dst_ip=10.0.46.97 bytes_out=17421\n L1-2 2026-04-25T20:55:00Z net.port_scan_hit src_ip=203.0.113.49 port=22\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-2\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage3_mixed", "seed": 101379, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 4 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T08:25:00Z proc.lolbin_use process=powershell.exe parent_process=chrome.exe cmd=-enc AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n L1-1 2026-04-25T08:25:05Z file.write path=C:\\Users\\Public\\payload.exe\n L1-2 2026-04-25T15:22:00Z net.outbound_connection dst_ip=10.0.246.62 bytes_out=32655\n L1-3 2026-04-25T15:22:02Z auth.login_success user=bob src_ip=10.0.0.134\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage3_mixed", "seed": 101380, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 5 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T04:42:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB\n L1-1 2026-04-25T04:42:15Z net.beacon dst_ip=203.0.113.5 interval_s=30\n L1-2 2026-04-25T04:42:30Z auth.privilege_grant user=bob role=admin\n L1-3 2026-04-25T22:38:00Z net.outbound_connection dst_ip=10.0.21.198 bytes_out=63511\n L1-4 2026-04-25T22:38:02Z auth.login_success user=carol src_ip=10.0.0.40\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"escalate\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Combined endpoint and network compromise signals \\u2014 page on-call.\"}"}], "task_id": "stage3_mixed", "seed": 101381, "ground_truth": "escalate"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 3 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T14:33:00Z auth.login_success user=erin src_ip=10.0.0.112\n L1-1 2026-04-25T17:43:00Z auth.login_success user=bob src_ip=10.0.0.59\n L1-2 2026-04-25T17:43:02Z net.outbound_connection dst_ip=10.0.159.110 bytes_out=21904\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"dismiss\", \"cited_log_id\": \"L1-2\", \"rationale\": \"No malicious indicators in the log window.\"}"}], "task_id": "stage3_mixed", "seed": 101382, "ground_truth": "dismiss"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 5 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T07:24:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB\n L1-1 2026-04-25T07:24:15Z net.beacon dst_ip=203.0.113.5 interval_s=30\n L1-2 2026-04-25T07:24:30Z auth.privilege_grant user=alice role=admin\n L1-3 2026-04-25T11:00:00Z net.outbound_connection dst_ip=10.0.252.60 bytes_out=7928\n L1-4 2026-04-25T11:00:02Z net.dns_query domain=internal.corp\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"escalate\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Combined endpoint and network compromise signals \\u2014 page on-call.\"}"}], "task_id": "stage3_mixed", "seed": 101383, "ground_truth": "escalate"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 3 event(s); first=net.port_scan_hit\nLOG_WINDOW:\n L1-0 2026-04-25T10:41:00Z net.port_scan_hit src_ip=203.0.113.46 port=22\n L1-1 2026-04-25T22:02:00Z auth.login_success user=dave src_ip=10.0.0.13\n L1-2 2026-04-25T22:02:02Z net.outbound_connection dst_ip=10.0.174.92 bytes_out=21600\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage3_mixed", "seed": 101384, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: brute_force: 8 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T05:10:00Z auth.login_success user=bob src_ip=10.0.0.140\n L1-1 2026-04-25T05:10:02Z auth.login_success user=carol src_ip=10.0.0.224\n L1-2 2026-04-25T05:33:00Z auth.login_failure user=service_acct src_ip=203.0.113.77\n L1-3 2026-04-25T05:33:05Z auth.login_failure user=service_acct src_ip=203.0.113.31\n L1-4 2026-04-25T05:33:10Z auth.login_failure user=service_acct src_ip=203.0.113.130\n L1-5 2026-04-25T05:33:15Z auth.login_failure user=service_acct src_ip=203.0.113.165\n L1-6 2026-04-25T05:33:20Z auth.login_failure user=service_acct src_ip=203.0.113.123\n L1-7 2026-04-25T05:33:25Z auth.login_failure user=service_acct src_ip=203.0.113.117\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-2\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage3_mixed", "seed": 101385, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 3 event(s); first=net.outbound_connection\nLOG_WINDOW:\n L1-0 2026-04-25T02:34:00Z net.outbound_connection dst_ip=10.0.144.242 bytes_out=10485\n L1-1 2026-04-25T02:34:02Z net.dns_query domain=google.com\n L1-2 2026-04-25T22:51:00Z net.port_scan_hit src_ip=203.0.113.204 port=22\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-2\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage3_mixed", "seed": 101386, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 4 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T08:34:00Z proc.lolbin_use process=powershell.exe parent_process=chrome.exe cmd=-enc AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n L1-1 2026-04-25T08:34:05Z file.write path=C:\\Users\\Public\\svc.exe\n L1-2 2026-04-25T14:28:00Z net.dns_query domain=internal.corp\n L1-3 2026-04-25T14:28:02Z net.dns_query domain=google.com\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage3_mixed", "seed": 101387, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 3 event(s); first=edr.behavior_match\nLOG_WINDOW:\n L1-0 2026-04-25T08:59:00Z edr.behavior_match severity=high rule_id=EDR-5499 host=host-031\n L1-1 2026-04-25T10:46:00Z net.dns_query domain=github.com\n L1-2 2026-04-25T10:46:02Z auth.login_success user=alice src_ip=10.0.0.25\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage3_mixed", "seed": 101388, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 4 event(s); first=proc.lolbin_use\nLOG_WINDOW:\n L1-0 2026-04-25T19:20:00Z proc.lolbin_use process=powershell.exe parent_process=excel.exe cmd=-enc AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n L1-1 2026-04-25T19:20:05Z file.write path=C:\\Users\\Public\\svc.exe\n L1-2 2026-04-25T20:55:00Z net.dns_query domain=github.com\n L1-3 2026-04-25T20:55:02Z net.outbound_connection dst_ip=10.0.172.46 bytes_out=77529\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage3_mixed", "seed": 101389, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 3 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T11:08:00Z auth.login_success user=carol src_ip=10.0.0.123\n L1-1 2026-04-25T11:08:02Z auth.login_success user=carol src_ip=10.0.0.156\n L1-2 2026-04-25T22:07:00Z edr.behavior_match severity=high rule_id=EDR-3768 host=host-038\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"quarantine_host\", \"cited_log_id\": \"L1-2\", \"rationale\": \"Endpoint compromise indicators warrant isolation.\"}"}], "task_id": "stage3_mixed", "seed": 101390, "ground_truth": "quarantine_host"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 5 event(s); first=net.outbound_connection\nLOG_WINDOW:\n L1-0 2026-04-25T10:29:00Z net.outbound_connection dst_ip=10.0.167.247 bytes_out=58980\n L1-1 2026-04-25T10:29:02Z net.outbound_connection dst_ip=10.0.94.55 bytes_out=45266\n L1-2 2026-04-25T15:25:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB\n L1-3 2026-04-25T15:25:15Z net.beacon dst_ip=203.0.113.5 interval_s=30\n L1-4 2026-04-25T15:25:30Z auth.privilege_grant user=alice role=admin\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"escalate\", \"cited_log_id\": \"L1-2\", \"rationale\": \"Combined endpoint and network compromise signals \\u2014 page on-call.\"}"}], "task_id": "stage3_mixed", "seed": 101391, "ground_truth": "escalate"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 3 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T11:51:00Z auth.login_success user=dave src_ip=10.0.0.18\n L1-1 2026-04-25T12:55:00Z net.dns_query domain=internal.corp\n L1-2 2026-04-25T12:55:02Z auth.login_success user=carol src_ip=10.0.0.168\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"dismiss\", \"cited_log_id\": \"L1-2\", \"rationale\": \"No malicious indicators in the log window.\"}"}], "task_id": "stage3_mixed", "seed": 101392, "ground_truth": "dismiss"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 3 event(s); first=net.port_scan_hit\nLOG_WINDOW:\n L1-0 2026-04-25T06:46:00Z net.port_scan_hit src_ip=203.0.113.27 port=3389\n L1-1 2026-04-25T19:03:00Z net.outbound_connection dst_ip=10.0.167.142 bytes_out=89695\n L1-2 2026-04-25T19:03:02Z auth.login_success user=dave src_ip=10.0.0.180\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"monitor\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Weak signal worth observing but no containment yet.\"}"}], "task_id": "stage3_mixed", "seed": 101393, "ground_truth": "monitor"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 5 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T03:42:00Z auth.login_success user=alice src_ip=10.0.0.56\n L1-1 2026-04-25T03:42:02Z auth.login_success user=dave src_ip=10.0.0.21\n L1-2 2026-04-25T04:06:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB\n L1-3 2026-04-25T04:06:15Z net.beacon dst_ip=203.0.113.5 interval_s=30\n L1-4 2026-04-25T04:06:30Z auth.privilege_grant user=bob role=admin\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"escalate\", \"cited_log_id\": \"L1-2\", \"rationale\": \"Combined endpoint and network compromise signals \\u2014 page on-call.\"}"}], "task_id": "stage3_mixed", "seed": 101394, "ground_truth": "escalate"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: benign_noise: 3 event(s); first=auth.login_success\nLOG_WINDOW:\n L1-0 2026-04-25T00:51:00Z auth.login_success user=carol src_ip=10.0.0.149\n L1-1 2026-04-25T00:51:02Z net.dns_query domain=github.com\n L1-2 2026-04-25T19:16:00Z auth.login_success user=bob src_ip=10.0.0.180\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"dismiss\", \"cited_log_id\": \"L1-2\", \"rationale\": \"No malicious indicators in the log window.\"}"}], "task_id": "stage3_mixed", "seed": 101395, "ground_truth": "dismiss"} {"messages": [{"role": "system", "content": "You are a senior SOC analyst. You triage SIEM alerts. Read the alert and the structured log window, then choose exactly one action from {dismiss, monitor, quarantine_host, block_ip, escalate} and cite the single most diagnostic log_id. Respond with a JSON object only. Never invent log_ids."}, {"role": "user", "content": "ALERT: malware_execution: 5 event(s); first=net.outbound_connection\nLOG_WINDOW:\n L1-0 2026-04-25T16:45:00Z net.outbound_connection dst_ip=10.0.109.201 bytes_out=56772\n L1-1 2026-04-25T16:45:02Z auth.login_success user=bob src_ip=10.0.0.243\n L1-2 2026-04-25T20:20:00Z proc.lolbin_use process=powershell.exe parent_process=outlook.exe cmd=-enc BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB\n L1-3 2026-04-25T20:20:15Z net.beacon dst_ip=203.0.113.5 interval_s=30\n L1-4 2026-04-25T20:20:30Z auth.privilege_grant user=bob role=admin\n\nRespond with JSON in this shape:\n{\n \"action\": \"dismiss|monitor|quarantine_host|block_ip|escalate\",\n \"cited_log_id\": \"\",\n \"rationale\": \"\"\n}\n\nExample:\nALERT: c2_beacon: 1 event(s); first=net.beacon\nLOG_WINDOW:\n L1-0 2026-04-25T10:00:00Z net.beacon dst_ip=203.0.113.5 interval_s=60\n\nResponse:\n{\"action\": \"block_ip\", \"cited_log_id\": \"L1-0\", \"rationale\": \"Periodic beacon to external IP indicates C2.\"}"}, {"role": "assistant", "content": "{\"action\": \"escalate\", \"cited_log_id\": \"L1-2\", \"rationale\": \"Combined endpoint and network compromise signals \\u2014 page on-call.\"}"}], "task_id": "stage3_mixed", "seed": 101396, "ground_truth": "escalate"}