$ ctf42

Challenges

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Higher weight ≈ harder, more prestigious event.
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143 challenges · browse all techniques

Challenge CTF Weight Category Has
Admin_rights
#sam-hive-analysis
 Junior.Crypt 2024 23.13 Forensics files wu 2
Banishment
#uac-flag-analysis
 Junior.Crypt 2024 23.13 Forensics files wu 2
Pizza
#dotnet-reversing
 Junior.Crypt 2024 23.13 Reverse files wu 1
Series_SAM
#ntds-extraction
 Junior.Crypt 2024 23.13 Forensics files wu 1
Broken_Tree NewYear 2026 23.42 Reverse files
CryBaby NewYear 2026 23.42 Crypto files
Esoteric_Language NewYear 2026 23.42 Crypto files
Flight_of_the_grinch NewYear 2026 23.42 OSINT files
Grinch_Attack NewYear 2026 23.42 Reverse files
Inject NewYear 2026 23.42 Forensics files
Name NewYear 2026 23.42 Pwn files
NewYearsAES NewYear 2026 23.42 Crypto files
New_Years_Eve NewYear 2026 23.42 OSINT files
Regular_GoogleMaps NewYear 2026 23.42 OSINT files
Semi_ADFGX_18+ NewYear 2026 23.42 Crypto files
Taste NewYear 2026 23.42 Pwn files
Visiting_Belorussian_Grandfather NewYear 2026 23.42 OSINT files
babyCrypto NewYear 2026 23.42 Crypto files
babyForensic NewYear 2026 23.42 Forensics files
babyOSINT NewYear 2026 23.42 OSINT files
babyReverse NewYear 2026 23.42 Reverse files
exFill NewYear 2026 23.42 Forensics files
steg NewYear 2026 23.42 Misc files
100_percent_Robust_PRNG Junior.Crypt 2025 23.13 Misc files
A_friend_of_yours_says_hello Junior.Crypt 2025 23.13 OSINT files
All_in_white Junior.Crypt 2025 23.13 Forensics files
Amount_of_his_dreams Junior.Crypt 2025 23.13 Crypto files
Authors_autograph Junior.Crypt 2025 23.13 OSINT files
Birds_and_Wires Junior.Crypt 2025 23.13 Misc files
Bitflip_RSA Junior.Crypt 2025 23.13 Crypto files
Broken_ZKP._I Junior.Crypt 2025 23.13 Misc files
Center_of_Europe Junior.Crypt 2025 23.13 OSINT files
ChattyParrot Junior.Crypt 2025 23.13 Pwn files
Chess_in_the_fog Junior.Crypt 2025 23.13 OSINT files
Compiled_Python Junior.Crypt 2025 23.13 Reverse files
Double_Trouble Junior.Crypt 2025 23.13 Misc files
Dynamic_Key Junior.Crypt 2025 23.13 Reverse files
Elven_Knot Junior.Crypt 2025 23.13 Reverse files
Error_Based_Encryption Junior.Crypt 2025 23.13 Crypto files
Error_another_error_... Junior.Crypt 2025 23.13 Misc files