FAT CAT (Forensics)— KJSSE CTF 3.0 This challenge was given in Round 2 of KJSSE CTF 3.0 by K.J. Somaiya College of Engineering, Vidyavihar.  Challenge Description: A butterfly shouldn’t make a …

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A CTF forensics challenge writeup from KJSSE CTF 3.0 involving steganography in a PNG file. The solution involves using zsteg to detect a hidden ZIP archive, extracting nested PNG files with binwalk across 10 layers, and finally revealing a flag hidden in the Red 0 bit plane using LSB (Least Significant Bit) steganography via the StegOnline tool.