$ ctf42

#steganography CTF challenges

9 CTF challenges using steganography from 9 CTFs (2020–2026), 9 with writeups. Mostly Crypto (44%) and Misc (33%).

Crypto · 4 Misc · 3 Forensics · 1 Stego · 1

Often combined with

#steghide 1 #morse-code 1 #gif-frame-extraction 1 #android 1 #stegcracker 1 #zsteg 1 #png 1 #audio 1 #rsa 1 #archive-cracking 1 #file-signature 1

Challenges

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Challenge CTF Weight Category Has
Hide_n_Seek BlueHens 2023 24.61 Crypto files wu 2
Pianoman UofTCTF 2024 23.90 Crypto files wu 2
Her_Eyes SpringForwardCTF 2024 22.40 Forensics files wu 1
Meeting RaziCTF 2020 21.91 Misc files wu 1
Tribble_with_my_Skin SunshineCTF 2025 51.65 Misc files wu 1
Stegharmed_Part_1 THCon 2024 – Stego files wu 1
Oversized_Downlink Starpwn 2026 – Misc files wu 1
Giffy Damncon 2022 17.54 Crypto files wu 1
EmailIncoming VishwaCTF 2023 22.69 Crypto files wu 1