Challenges

Category Web Pwn Reverse Crypto Forensics Misc OSINT Stego Blockchain Hardware Mobile

Difficulty Beginner Easy Medium Hard Insane

CTFtime weight

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Higher weight ≈ harder, more prestigious event.

Year

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CTF

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Must have Source / Docker Writeup

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Challenge	CTF	Weight	Category	Has
Dead_Letter #custom-protocol #use-after-free (uaf)#crc32	ASIS 2026 Quals	90.53	Pwn	files wu 1
snakechat #custom-protocol #client-exploitation	snakeCTF 2024 Quals	24.79	Pwn	files wu 1