Misc 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.

Magic or Not

Sat, 22 Aug 2026 20:13:04 +0200

Challenge Name: misc_magic-or-not

Category: Misc

Difficulty: Easy

Author: H4N5

Challenge Description

As an intern at Brunner Corporation, I developed a cutting-edge image obfuscation algorithm, designed to hide sensitive image data.

I’m confident it’s secure, but the security team isn’t convinced. They believe custom cryptography always hides a flaw.

Pretty Hostnames with /etc/hosts

Sun, 07 Dec 2025 20:22:53 +0100

When attacking or enumerating a target, typing raw IPs everywhere is clunky and error-prone. A simple, built-in trick is to use /etc/hosts to map an IP address to a friendly hostname so your tools, browser, and shell can use a memorable name.

Example mapping:

10.82.186.54 cybershield.nc3

This lets you visit http://cybershield.nc3 in your browser, curl cybershield.nc3, and point tools at the hostname instead of the IP.

What /etc/hosts Does

Local override: Maps hostnames to IPs before DNS is queried.
Zero dependencies: No DNS server required; works offline.
System-wide: Applies to all applications on the machine.

How to Add an Entry (macOS/Linux)

Aflytning: keyboard warrior

Sun, 17 Dec 2023 20:37:16 +0100

Challenge Name:

Aflytning: keyboard warrior

Category:

Misc

In My Prime

Sun, 17 Dec 2023 20:37:16 +0100

Challenge Name:

In My Prime

Category:

Misc