# Keras RepeatVector n Trigger MFV PoC

This repository contains a benign Huntr MFV proof of concept.

Files:

- `control_repeatvector_n.keras` - control Keras Native artifact with `RepeatVector(n=1)`.
- `malicious_repeatvector_n.keras` - malicious Keras Native artifact with `RepeatVector(n=2)`.
- `reproduce.py` - verifies the trigger-specific output flip and scanner output.

Run:

```bash
python3 -m venv /tmp/mfv-keras-repeatvector
. /tmp/mfv-keras-repeatvector/bin/activate
pip install -r requirements.txt
python reproduce.py
```

Expected result:

- Benign inputs `[0.0]`, `[2.0]`, and `[-1.0]` keep classes `[0, 1, 0]` in both artifacts.
- Trigger input `[1.0]` is class `0` in the control artifact and class `1` in the malicious artifact.
- `modelscan==0.8.8` reports `No issues found!`.