$ ctf42

Challenges

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

Challenge CTF Weight Category Has
Follow_The_Layer
#blockchain-transaction-tracing
 LYKNCTF 2026 – Forensics files wu 1
World_Cup_1
#lsb-steganography
 LYKNCTF 2026 – Forensics files wu 1
World_Cup_2
#polyglot-appended-zip
 LYKNCTF 2026 – Forensics files wu 1
Echoes LYKNCTF 2026 – Forensics files
NotPet_y_a LYKNCTF 2026 – Forensics files
One_Stroke LYKNCTF 2026 – Forensics files
Remedy LYKNCTF 2026 – Forensics files
Thanh_Hoa_1 LYKNCTF 2026 – Forensics files
Thanh_Hoa_2 LYKNCTF 2026 – Forensics files