stegoPromedium

Deep

volgactf

Task: PNG image with SteganoGAN-embedded message, only encoder model provided (no decoder). Solution: train a surrogate decoder from scratch using the frozen encoder as a synthetic data generator, then decode the stego image and Reed-Solomon recover the repeated flag.

steganography image_steganography pytorch gan neural_network deep_learning steganogan reed_solomon dense_encoder dense_decoder

surrogate_decoder_trainingsynthetic_data_generation_from_frozen_encoderreed_solomon_error_correctionrepeated_message_majority_votingsteganogan_architecture_analysis

$ ls tags/ techniques/

steganography image_steganography pytorch gan neural_network deep_learning steganogan reed_solomon dense_encoder dense_decoder

surrogate_decoder_trainingsynthetic_data_generation_from_frozen_encoderreed_solomon_error_correctionrepeated_message_majority_votingsteganogan_architecture_analysis

Analysis

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.

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

Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.

Permission denied (requires tier.pro)

Sign in to access full writeups

$sign in

$ cat writeup.md…

Sign in to access full writeups

Sign in to access full writeups

Similar writeups