You'll find here all challenges & writeups created by me aka CR0M80
GCDxN7 CTF in 13/14 December 2025
In this challenge, the flag is hidden inside a WAV audio file using steganography.
A challenge involving a corrupted PNG, homoglyph substitution, ZIP cracking, and image reconstruction.
Memory Forensics Challenge – A banker’s PC memory dump hides the truth behind missing balances. Analyze volatile artifacts, trace a disguised malware, decrypt stolen financial data, and recover the hidden flag.