| --- |
| 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-base64-split-marker |
|
|
| > **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-0006` |
|
|
| ## Purpose |
|
|
| Marker is split and base64 encoded across several 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: **high** |
| - Difficulty: **compound** |
| - Expected admission decision: **BLOCK** |
| - Control type: **compound** |
| - Attack surface: package-evasion |
| - Techniques: fragmented-marker, base64 |
| - Transformations: fragmentation, base64 |
|
|
| ### Ground-truth oracle IDs |
|
|
| - `LF-ORACLE-PACKAGE-FRAGMENTED-SIGNAL` |
|
|
| 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. |
|
|
