Nullcon GOA CTF 2025 writeup (February 1st, 2025): detailed solutions for REVERSE, WEB, and MISC challenges. Explains using Ghidra, radare2, and Python for reverse engineering tasks, analyzing scrambled data, extracting hidden content from PCAP files, and exploiting web pagination and SQL quirks to retrieve challenge flags.

Detailed write-up of TUCTF 2024 reverse engineering challenges, covering MYSTERY-BOX, SIMPLE-LOGIN, and CUSTOM-IMAGE-GENERATOR. Includes step-by-step binary analysis, decompiled code exploration, password and flag reconstruction, and solving a custom image format, illustrating the full process of tackling complex reverse engineering CTF tasks.