Publish Layerfault deep challenge LF-CH-STORE-0008

CHALLENGE_ORACLE.json

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+{
+  "attack_surface": [
+    "local-model-store"
+  ],
+  "control_type": "positive",
+  "corpus_id": "LF-CH-STORE-0008",
+  "difficulty": "hard",
+  "expected_decision": "BLOCK",
+  "ground_truth": "synthetic-generated",
+  "layerfault_rule_expectations": {
+    "candidate_rules": [],
+    "expected_rules": [],
+    "must_not_rules": []
+  },
+  "oracle_ids": [
+    "LF-ORACLE-STORE-0008"
+  ],
+  "related_cases": [],
+  "repo_name": "store-lmstudio-unexpected-sidecar",
+  "safe_fixture": true,
+  "schema": 2,
+  "severity": "medium",
+  "techniques": [
+    "lmstudio",
+    "unexpected",
+    "sidecar"
+  ],
+  "transformations": []
+}

FIXTURE_LAYOUT.json

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+{
+  "artifacts": [
+    "store/blobs/sha256-a4e5e156ddec27e286f75328784d7106b60a4eb1d246e950a001a3f944fbda99",
+    "store/model.json",
+    "store/custom.py",
+    "store/manifest.json"
+  ],
+  "family": "store",
+  "note": "All content is synthetic and inert. Do not treat this as a production model.",
+  "repo_name": "store-lmstudio-unexpected-sidecar"
+}

LAYERFAULT_CORPUS.json

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+{
+  "candidate_rules": [],
+  "challenge": {
+    "attack_surface": [
+      "local-model-store"
+    ],
+    "control_type": "positive",
+    "difficulty": "hard",
+    "expected_decision": "BLOCK",
+    "oracle_ids": [
+      "LF-ORACLE-STORE-0008"
+    ],
+    "related_cases": [],
+    "severity": "medium",
+    "techniques": [
+      "lmstudio",
+      "unexpected",
+      "sidecar"
+    ],
+    "transformations": []
+  },
+  "corpus_id": "LF-CH-STORE-0008",
+  "description": "Store lmstudio unexpected sidecar.",
+  "expected_rules": [],
+  "generator": "challenges.generate_challenge",
+  "ground_truth": "synthetic-generated",
+  "must_not_rules": [],
+  "repo_name": "store-lmstudio-unexpected-sidecar",
+  "repo_type": "model",
+  "safe_fixture": true,
+  "safety": "inert/canary-only",
+  "schema": 1,
+  "validation": {
+    "kind": "verify-package",
+    "target": "store"
+  }
+}

README.md

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+---
+license: apache-2.0
+tags:
+- layerfault
+- security-research
+- model-security
+- synthetic
+- adversarial-testing
+extra_gated_prompt: >-
+  This repository is a synthetic security-test artifact from the Layerfault
+  corpus. It intentionally contains adversarial characteristics (e.g.
+  suspicious pickle opcodes, executable-format smuggling, prompt-injection
+  strings) designed to exercise security scanner detection rules. It is
+  **not** a usable ML model and must never be loaded or executed outside an
+  isolated scanner-testing environment. By accepting, you confirm you
+  understand this repository is a test fixture, not production model
+  weights.
+extra_gated_button_content: I understand this is a security test fixture and accept the risk
+gated: auto
+---
+
+# store-lmstudio-unexpected-sidecar
+
+> **SECURITY TEST ARTIFACT: DO NOT USE AS A PRODUCTION MODEL**
+
+This repository is part of the Layerfault synthetic security corpus.
+It is deliberately constructed to contain security-relevant characteristics for scanner testing.
+
+**Corpus ID:** `LF-CH-STORE-0008`
+
+## Purpose
+
+Store lmstudio unexpected sidecar.
+
+## Direct expected Layerfault rules
+
+- None; this repository is a control/comparison input.
+
+## Candidate rules
+
+These are deliberately plausible targets that remain marked as candidates until the exact
+Layerfault build used for certification confirms them.
+
+- None
+
+## Negative-control rules
+
+These should remain silent for this corpus item.
+
+- None
+
+## Safety
+
+The corpus uses fake secrets, loopback/`.invalid` network destinations, harmless marker output,
+and synthetic model behavior only. It is intended for static scanning and isolated security testing.
+
+## Challenge classification
+
+- Severity: **medium**
+- Difficulty: **hard**
+- Expected admission decision: **BLOCK**
+- Control type: **positive**
+- Attack surface: local-model-store
+- Techniques: lmstudio, unexpected, sidecar
+- Transformations: none
+
+### Ground-truth oracle IDs
+
+- `LF-ORACLE-STORE-0008`
+
+These oracle IDs describe synthetic ground truth. They do not claim that a
+matching Layerfault detector already exists. A challenge may intentionally expose
+a scanner blind spot and remain unmapped until the detector is implemented.

SHA256SUMS.json

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+[
+  {
+    "path": "CHALLENGE_ORACLE.json",
+    "sha256": "99d647ba776648520f54041715160dd797d472f639a7b6f66f1e93fc91788089",
+    "size": 619
+  },
+  {
+    "path": "FIXTURE_LAYOUT.json",
+    "sha256": "d3db2f1d9d06c29741ea665fc8507328320dd30fda7963e7d8e396ca226ccdff",
+    "size": 352
+  },
+  {
+    "path": "LAYERFAULT_CORPUS.json",
+    "sha256": "0f19bf02caeddaa78d7dd27117b3d3d1aeb2f9e520bd5522654462a52621042f",
+    "size": 863
+  },
+  {
+    "path": "README.md",
+    "sha256": "f15ffa5e1189dea8917bd631743d8459fb78f0263eddfde5837098462b47ec13",
+    "size": 2216
+  },
+  {
+    "path": "store/blobs/sha256-a4e5e156ddec27e286f75328784d7106b60a4eb1d246e950a001a3f944fbda99",
+    "sha256": "a4e5e156ddec27e286f75328784d7106b60a4eb1d246e950a001a3f944fbda99",
+    "size": 24
+  },
+  {
+    "path": "store/custom.py",
+    "sha256": "6bd7280b5aae6161d1e02d49ccd95c8d8f910f50e164e65b063081827a0155e1",
+    "size": 28
+  },
+  {
+    "path": "store/manifest.json",
+    "sha256": "f6e998e402fe4df489017efdc3125a8ce3957652b57ec89641e02a2d133f67bb",
+    "size": 164
+  },
+  {
+    "path": "store/model.json",
+    "sha256": "ff4530391c1cc5f93f1145c5461a11c1ca915acb1d2df0652204a339c9ad1c8e",
+    "size": 194
+  }
+]

store/custom.py

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+MARKER="LAYERFAULT_FIXTURE"

store/manifest.json

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+{
+  "config": {
+    "digest": "sha256:a4e5e156ddec27e286f75328784d7106b60a4eb1d246e950a001a3f944fbda99",
+    "size": 24
+  },
+  "layers": [],
+  "schemaVersion": 2
+}

store/model.json

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+{
+  "format": "gguf",
+  "path": "blobs/sha256-a4e5e156ddec27e286f75328784d7106b60a4eb1d246e950a001a3f944fbda99",
+  "sha256": "a4e5e156ddec27e286f75328784d7106b60a4eb1d246e950a001a3f944fbda99"
+}