$ ctf42

Challenges

Category
Difficulty
CTFtime weight
–
Higher weight ≈ harder, more prestigious event.
Year
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Must have
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2168 challenges · browse all techniques

Challenge CTF Weight Category Has
Dots_and_Dashes EHAX 2025 – Crypto files
EHAX_Radio EHAX 2025 – Forensics files
Fantastic_doom EHAX 2025 – Pwn files
Halleys_Comet_1 EHAX 2025 – Crypto files
Help_the_Hacker EHAX 2025 – Misc files
Language EHAX 2025 – Reverse files
MBR_Shenanigans EHAX 2025 – Reverse files
Pika_Pika EHAX 2025 – Reverse files
Pizzatron_3000 EHAX 2025 – Reverse files
Pizzatron_9000 EHAX 2025 – Reverse files
Quandale_Dingle EHAX 2025 – Web files
RaceAgainstTime EHAX 2025 – Reverse files
Retrieve_the_flag EHAX 2025 – Misc files
Tazerman_Into_the_DTUverse EHAX 2025 – Forensics files
Tracks EHAX 2025 – Forensics files
three.little.clues EHAX 2025 – OSINT files
Bitmap_Mystery FooBarCTF 2025 25.00 Reverse files
Cipher_Maze FooBarCTF 2025 25.00 Reverse files
Cipherception FooBarCTF 2025 25.00 Crypto files
Crypt0n1um_Vault FooBarCTF 2025 25.00 Crypto files
CryptoMix_Madness FooBarCTF 2025 25.00 Misc files
Encrypted_Echoes FooBarCTF 2025 25.00 Crypto files
Gates_of_Iron FooBarCTF 2025 25.00 Reverse files
Lost_Transmission FooBarCTF 2025 25.00 Misc files
Madate_Vanter FooBarCTF 2025 25.00 Pwn files
Operation_Matrix_Guardian FooBarCTF 2025 25.00 Crypto files
Silent_Whispers FooBarCTF 2025 25.00 Misc files
Advance_Crypto_Breaking WebArena 2025 – Crypto files
Binary_Riddle WebArena 2025 – Reverse files
Corrupted_Caesar WebArena 2025 – Crypto files
Cryptia WebArena 2025 – Crypto files
Crypto_Brain WebArena 2025 – Crypto files
Cryptologia WebArena 2025 – Crypto files
Data_transmission WebArena 2025 – Misc files
Forensics_1 WebArena 2025 – Forensics files
Forensics_Inter WebArena 2025 – Forensics files
Forensics_of_Dump WebArena 2025 – Forensics files
Funcky_Binary WebArena 2025 – Reverse files
GOOGLEE_BABA WebArena 2025 – Misc files
Get_Back_to_Investigate_Practice WebArena 2025 – Crypto files