hubertf's Capture the Flag (CTF) Ressources

More (newest on top):

2026:

• HackTheBox "Cyber Apocalypse CTF 2026: The Salt Crown
  My writeups, more notes available on request
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• CTF Academy CTF v2 2026:
  • Writeup webpage for my pwn/Hi-PIE challenge
  • Writeup video for my pwn/Hi-PIE challenge

    

  • CTF challenge notes available on request
• Wargame: breachlab - phantom - Notes available on request
• BYUCTF 2026 - Notes available on request
• CTF Writeup: TryHackMe: AI-Odyssee
• Wargame: breachlab - ghost - Notes available on request
• plfanzenCTF 2026 - Notes available on request
• UMD 2026 Writeup - Further notes available on request
• CTF-Write contest winner: UMassCTF 2026 Writeup - Further notes available on request
• Writeup on TryHackMe's "Reversing ELF" room
• Cyber Security Challenge Germany CTF 2026 - Notes available on request
• picoCTF 2026 - Notes available on request
• Crackmes.one Reverse Engineering CTF 2026 - Notes available on request
• pwn.college notes: yansanity
• Scarlett CTF 2026 - Notes available on request

• hxp CT 2025 @ 39c3 - Notes available on request
  • Solution: rev - Sharing
  • Solution: misc - Umbefleckte Empfängnis
• TryHackMe - Advent of Cyber 2025 - Notes available on request
• pwn.college - Advent of Pwn 2025 - Writeup - Featured on pwn.talk 2026-03-19
• angr_ctf - Notes available on request
• Platypwn CTF 2025 - Notes available on request
• Buckeye CTF 2025 - Notes available on request
• Huntress CTF 2025 - Notes available on request
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  • Day 31: Root Canal - Solution
• Uni Regensburg CTF 2025 - Notes available on request, plus TV-report
• HackTheBox's HackTheBoo CTF 2025 - Notes available on request
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• hack.lu CTF 2025 - Notes available on request
  • ZIGBÄKVÄM solution
  • MÄNUAL solution
• Deutschland's Bester Hacker CTF 2025 - Notes available on request
• Crew CTF 2025 - Notes available on request
• TCC The Catch CTF 2025 - Notes available on request
• TFCCTF 2025 - Notes available on request
  • Writeup for TFC CTF 2025 - Reverse: font league
• WHYCTF 2025 - Notes available on request
• L3ak CTF 2025 - Notes available on request
• Black Valey CTF 2025 - Notes available on request
• GPN CTF 2025 - Notes available on request
  • Writeup: Crypto - restricted oracle
• HowTo: ghidraMCP & Windsurf HowTo - 2025-05-25
• BYUCTF 2025 - public writeup, more notes available on request
• RSAC picoCTF 2025 - Notes available on request
• Potsdam Cyber Games 2025 - Notes available on request
• DEF CON CTF 2025 Qualifications - Notes available on request
• HackTheBox "Cyber Apocalypse CTF 2025 - Notes available on request
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• snyk "Fetch The Flag" CTF 2025:
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  • Writeup letters2num - Reverse Engineering
  • Writeup math 4 me - Reverse Engineering
  • Further notes available on request.

• TryHackMe: Agent Sudo - Writeup/Notes - November 2024
• TryHackMe: StuxCTF - Writeup/Notes - November 2024
• Over The Wire notes, not really cleaned up:
  • Bandit - Notes available on request
  • Leviathan - Notes available on request
  • Krypton - Notes available on request
  • Utumno - needs cleanup, available on request
  • Natas - incomplete, needs cleanup, available on request
  • Maze - needs cleanup, available on request
  • Manpage - in progress, needs cleanup, available on request
  • Vortex - in progress, needs cleanup, available on request
• Official writeup and CTF Notes with Team Mad Monday (gFuzz): Hack.lu 2024 by FluxxFingers
• CTF Notes Potsdam Cyber Games 2024 - Published later / on request
• hubertf's Writeup on TryHackMe's AdventOf Cyber 2023
• Notes with gFuzz Team: OverTheWire - krypton
• CTF Writeups with gFuzz Team: Hack.lu 2023 by FluxxFingers
• CTF Notes ctf.sikt.no 2023

• Aleph One: Smashing The Stack For Fun And Profit, Phrack 49