Publish Layerfault deep challenge LF-CH-EVAS-0010

CHALLENGE_ORACLE.json

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+{
+  "attack_surface": [
+    "package-evasion"
+  ],
+  "control_type": "compound",
+  "corpus_id": "LF-CH-EVAS-0010",
+  "difficulty": "adversarial",
+  "expected_decision": "BLOCK",
+  "ground_truth": "synthetic-generated",
+  "layerfault_rule_expectations": {
+    "candidate_rules": [],
+    "expected_rules": [],
+    "must_not_rules": []
+  },
+  "oracle_ids": [
+    "LF-ORACLE-PACKAGE-CROSS-FILE-CAPABILITY"
+  ],
+  "related_cases": [],
+  "repo_name": "evasion-multi-file-fragmented-capability",
+  "safe_fixture": true,
+  "schema": 2,
+  "severity": "critical",
+  "techniques": [
+    "cross-file-fragmentation"
+  ],
+  "transformations": [
+    "fragmentation",
+    "cross-file-correlation"
+  ]
+}

FIXTURE_LAYOUT.json

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+{
+  "artifacts": [
+    "config.json",
+    "assets/a.py",
+    "assets/b.py",
+    "assets/c.json",
+    "assets/README.txt"
+  ],
+  "family": "evasion",
+  "note": "All content is synthetic and inert. Do not treat this as a production model.",
+  "repo_name": "evasion-multi-file-fragmented-capability"
+}

LAYERFAULT_CORPUS.json

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+{
+  "candidate_rules": [],
+  "challenge": {
+    "attack_surface": [
+      "package-evasion"
+    ],
+    "control_type": "compound",
+    "difficulty": "adversarial",
+    "expected_decision": "BLOCK",
+    "oracle_ids": [
+      "LF-ORACLE-PACKAGE-CROSS-FILE-CAPABILITY"
+    ],
+    "related_cases": [],
+    "severity": "critical",
+    "techniques": [
+      "cross-file-fragmentation"
+    ],
+    "transformations": [
+      "fragmentation",
+      "cross-file-correlation"
+    ]
+  },
+  "corpus_id": "LF-CH-EVAS-0010",
+  "description": "Capability name and function fragments are distributed across files.",
+  "expected_rules": [],
+  "generator": "challenges.generate_challenge",
+  "ground_truth": "synthetic-generated",
+  "must_not_rules": [],
+  "repo_name": "evasion-multi-file-fragmented-capability",
+  "repo_type": "model",
+  "safe_fixture": true,
+  "safety": "inert/canary-only",
+  "schema": 1,
+  "validation": {
+    "kind": "verify-package",
+    "target": "."
+  }
+}

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
+---
+
+# evasion-multi-file-fragmented-capability
+
+> **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-EVAS-0010`
+
+## Purpose
+
+Capability name and function fragments are distributed across files.
+
+## 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: **critical**
+- Difficulty: **adversarial**
+- Expected admission decision: **BLOCK**
+- Control type: **compound**
+- Attack surface: package-evasion
+- Techniques: cross-file-fragmentation
+- Transformations: fragmentation, cross-file-correlation
+
+### Ground-truth oracle IDs
+
+- `LF-ORACLE-PACKAGE-CROSS-FILE-CAPABILITY`
+
+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": "a0b7099b7cfbbd79cabdef46a8cef8a24ae7b9f8b66c26436901c916ac6eb8b2",
+    "size": 687
+  },
+  {
+    "path": "FIXTURE_LAYOUT.json",
+    "sha256": "bc11aadad4841fcea7631648c033bbae07faaa752d649606497e9ad57d550bae",
+    "size": 299
+  },
+  {
+    "path": "LAYERFAULT_CORPUS.json",
+    "sha256": "911e11c19c022845d1d8c3c6b6594f25f5bc7754bd6488d7336ca34f33742193",
+    "size": 963
+  },
+  {
+    "path": "README.md",
+    "sha256": "7af33fa1aa858274239a4c22be0715cc7aad1de7150064d6d4547f8a4ab6e627",
+    "size": 2310
+  },
+  {
+    "path": "assets/README.txt",
+    "sha256": "b7884385efd0e7c2057956e9d098b8eff491b8ce9d485c5a7978f87fc367bbf8",
+    "size": 65
+  },
+  {
+    "path": "assets/a.py",
+    "sha256": "337aa1f2bbd869240c0242b281b21d5688a770439b573fba403abdfd86acfa9f",
+    "size": 22
+  },
+  {
+    "path": "assets/b.py",
+    "sha256": "3b3162b4e6ac2637d5bece66e261de6a1154e827aa95ec402182eba7fbb1023c",
+    "size": 26
+  },
+  {
+    "path": "assets/c.json",
+    "sha256": "a4c8654f9265fb9278951d7d47d2ec78aaf768afc89ce7903ccaf7c6c9d5731a",
+    "size": 122
+  },
+  {
+    "path": "config.json",
+    "sha256": "68d4b6c3308015c36332de690b727c02878531e6440ced97fcf1fd1a46d41704",
+    "size": 88
+  }
+]

assets/README.txt

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+Fragments are intentionally inert unless manually reconstructed.

assets/a.py

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+MODULE_PREFIX = "sub"

assets/b.py

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+MODULE_SUFFIX = "process"

assets/c.json

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+{
+  "function_parts": [
+    "r",
+    "un"
+  ],
+  "marker": "LAYERFAULT_FIXTURE:evasion-multi-file-fragmented-capability"
+}

config.json

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+{
+  "asset_root": "assets",
+  "fixture": true,
+  "model_type": "layerfault_challenge"
+}