$ ctf42

Challenges

Category
Difficulty
CTFtime weight
–
Higher weight ≈ harder, more prestigious event.
Year
–
Must have
Reset

433 challenges · browse all techniques

Challenge CTF Weight Category Has
Ive_got_you THJCC 2026 – Crypto files
Lattice_of_Doom THJCC 2026 Summer – Crypto files
Lets_go_to_Saizeriya_for_lunch THJCC 2026 Summer – Crypto files
License THJCC 2026 Summer – Reverse files
Make_a_contract_with_me_and_become_a_magical_girl THJCC 2026 – Pwn files
Man THJCC 2026 Summer – Forensics files
Metro THJCC 2026 – Misc files
MyGO_Database_revenge THJCC 2026 – Pwn files
NoNo THJCC 2026 Summer – Forensics files
No_Way_Out THJCC 2026 – Web files
Oh_I_love_you_even_more. THJCC 2026 – Misc files
PocketVM THJCC 2026 – Reverse files
Proof_100 THJCC 2026 – Crypto files
Provisioning_in_Progress THJCC 2026 – Misc files
Ransomware THJCC 2026 – Forensics files
Schizophrenic_Signer THJCC 2026 Summer – Crypto files
Secret_Intern_Service THJCC 2026 – Pwn files
Shifting... THJCC 2026 – Crypto files
Shifting...v2 THJCC 2026 Summer – Misc files
Starry_Sky THJCC 2026 Summer – Forensics files
Super_baby_reverse THJCC 2026 – Reverse files
THJCC_anti_virus THJCC 2026 – Reverse files
THJCC_file_upload_server THJCC 2026 – Pwn files
TV THJCC 2026 – Forensics files
TeaGod.exe THJCC 2026 Summer – Reverse files
The_homonym_is_Duck_no_need. THJCC 2026 – Crypto files
Two_Exponents THJCC 2026 Summer – Crypto files
Very_Security_Shell THJCC 2026 Summer – Pwn files
YRSK THJCC 2026 – Misc files
Yuyukos_Food THJCC 2026 – Reverse files
ai THJCC 2026 – Misc files
baby_jail THJCC 2026 – Misc files
deja_vu THJCC 2026 Summer – Pwn files
get_file1 THJCC 2026 Summer – Web files
get_file2 THJCC 2026 Summer – Web files
login_as_admin THJCC 2026 – Pwn files
msgboard THJCC 2026 – Web files
necropet THJCC 2026 Summer – Pwn files
who_is_whois THJCC 2026 – Web files
xorlocks THJCC 2026 Summer – Reverse files