$ ctf42

#gif-steganography CTF challenges

2 CTF challenges using gif-steganography from 2 CTFs (2024–2026), 2 with writeups.

Misc · 2

Often combined with

#palette-steganography 1 #transparency 1

Challenges

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Challenge CTF Weight Category Has
Invisible_Ink Wargames.MY 2024 – Misc files wu 1
Deep_Down UMassCTF 2026 65.95 Misc files wu 1