forensicshard

Evil Matryoshka

taipanbyte

Task: JPEG file with FFC steganography containing 72 nested archives (ZIP and AES-256 encrypted 7z). Solution: Decrypt FFC payload, automate extraction with GPU-accelerated password cracking using John the Ripper 7z-opencl format.

$ ls tags/ techniques/

steganography zip password_cracking john_the_ripper nested_archives rar 7z ffc free_file_camouflage gpu_cracking opencl matryoshka

nested_archive_extractionffc_decryption7z_hash_extractiongpu_password_cracking7z_opencl_crackingautomated_solver

Analysis

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$ python3 exploit.py --target 192.168.1.1 --port 8080
[*] Connecting to target...
[+] Shell obtained!

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