Steganography on Adamino CTF Writeups

ImageMagick

Sun, 23 Aug 2026 15:30:00 +0100

ImageMagick: Command-Line Image Surgery

ImageMagick is a scriptable image-manipulation toolkit — think Photoshop operations you can run from the terminal and loop over. In CTFs it earns its keep for the unglamorous but constant tasks: stitching image fragments back together, cropping a region out of a larger picture, converting formats, and flattening layers. No GUI, no clicking, fully reproducible.

binwalk

Sun, 23 Aug 2026 15:15:00 +0100

binwalk: Finding What’s Hidden Inside a File

Files lie about where they end. A JPEG can have a ZIP archive glued to its tail, a firmware image is really a dozen filesystems stacked back-to-back, and a “picture” might be three files in a trenchcoat. binwalk scans a file for the signatures of other file formats embedded anywhere inside it, then extracts them. It’s the go-to tool for firmware analysis and for the classic “there’s more to this file than meets the eye” forensics/OSINT puzzle.

Den Bærende Opskrift

Mon, 01 Dec 2025 11:21:10 +0100

Challenge Name:

Den Bærende Opskrift

Category:

Kom godt i gang