$ ctf42

WHY 2025 Finals

CTFtime official repo

Get ready to hack! The CTF is back at WHY2025!

Brought to you by the same team behind the legendary CTFs at OHM2013, SHA2017, and MCH2022. After a well-earned break, we’re back—bigger, better, and more challenging than ever! Just like in 2022, we will have both online and on-site challenges, making the CTF accessible to everyone. Whether you’re a seasoned hacker or a total beginner, there’s a challenge waiting for you.

Before the main event, we’re giving you a small taste of what’s to come! From March 21-23, 2025, we’ll host an online teaser CTF with a handful of challenges to get you in the mood.

Web 1

Challenge Has
Flyer files

Pwn 3

Challenge Has
Job_Security files
Old_Memes_Never_Die files
Terminal_Error_online files

Reverse 8

Challenge Has
3_Ball_Mark files
Gamerboy files
Hacker_Event_DB files
Keypad files
Lazy_Code_1.0 files
Lazy_Code_2.0 files
Zen_Master files
aSYMMETRICK files

Crypto 2

Challenge Has
Somkracht_65537 files
Substitute_Teacher files

Forensics 4

Challenge Has
BitLocked files
Painted_Black files
The_Wizard files
ToShredsYouSay files

Misc 6

Challenge Has
ColoredBlocks files
Just_One_Line files
TZe_611 files
TitleCase files
net files
onsite files