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Keras Lambda Scanner Evasion PoC

WARNING: This repository contains proof-of-concept model files for security research purposes only. Do NOT load these files in production environments.

Purpose

Demonstrates that a malicious Lambda layer hidden inside a nested Sequential model bypasses ModelScan's KerasLambdaDetectScan.

Files

File	Description	Scanner Result	Malicious?
`safe_model.keras`	Normal Dense model	No issues (correct)	No
`malicious_flat.keras`	Lambda at top level	Detected (correct)	Yes
`malicious_nested.keras`	Lambda inside nested Sequential	No issues (FALSE NEGATIVE)	Yes

Payload

All malicious files use harmless PoC: os.system('echo KERAS_SCANNER_EVASION_POC')

Disclosure

Responsible disclosure PoC for huntr.com MFV program.

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