Животные и флаг (Animals and the flag)

hackerlab

Task: nested AES-256 archives themed around famous internet animals, each password hidden by a different stego technique, ending in a Codeby beetle PNG whose colored border is a Piet program. Solution: LSB bit-plane text -> stereo L-R difference spectrogram -> PNG signature byte repair -> recognize the 18-color (6 hues x 3 shades) border as a Piet esolang program and run it.