CTF Writeups

Forensics, malware analysis, incident response, and more from competitions worldwide.

All 7 Forensics 7 Malware 4 Reverse Engineering 3 Web 1 Crypto 4 Walkthroughs 2 #CTF
Walkthrough

Steganography for CTFs & Forensics

A practical steganography guide: a repeatable methodology, then images (PNG/JPEG/GIF/BMP), audio (spectrograms, LSB, DTMF, SSTV), text and whitespace, documents, and password attacks, with the real commands and small Python scripts for each technique.

Steganography Forensics Image Forensics Audio Forensics +1
Beginner → Advanced • ~35 min read · ⏱ 27 min Read
Medium 3 writeups

Securinets CTF Quals 2025

Detailed overview of the Securinets CTF Qualifications 2025. Competed with Team Mojo Jojo and achieved 38th place (5th in North Africa). This documents the overall event and links to detailed challenge writeups.

CTF Forensics Team Mojo Jojo Securinets
3 Challenges Solved • 38th Place · ⏱ 3 min Read
Medium 1 writeup

QnQSec CTF 2025

Overview of forensics challenges from QnQSec CTF 2025, covering memory forensics with Volatility 3, phishing incident response, and Living Off The Land (LOTL) techniques.

CTF Forensics QnQSec
2 Challenges Solved • 100% Success Rate · ⏱ 3 min Read