@martcl

Hi, this is my personal microblog where I store my CTF writeups. Some of them are written in English, some in Norwegian, and some are just gibberish... I write these mostly for myself so I have a historical record of the cooles challenges I've solved. They stand as a reminder of what I've learned and what I've accomplished.

Want to play some challenges? Check out the writeups with tag #tys . They have source code provided.

Featured

• Omegapoint advent CTF 2023

  Posted on:January 1, 2024 |  at 02:55 PM

  Awsome advent CTF with two new challenges every sunday. I came in 4th place with all challenges solved except one.

• Writeup for S2G Web Challenge - Fishy

  Posted on:December 15, 2023 |  at 11:15 PM

  Bypass input validation and using SQL time-based data exfiltration to get the flag.

Recent Posts

• Bi0s CTF 24 - bfs (Misc)

  Posted on:February 26, 2024 |  at 01:10 AM

  Utilizing brainf*ck to retrive the flag in 3 parts

• Omegapoint CTF 2023 - Rev & Crypto - Operation XMAS

  Posted on:January 1, 2024 |  at 02:55 PM

  Reverse engineering ransomware disguised as a PDF to decrypt encrypted files not knowing the decrypton key.

• Omegapoint CTF 2023 - Crypto & REV - The Polar Express

  Posted on:January 1, 2024 |  at 02:55 PM

  Reverse engineering python 3.10 bytecode from __pycache__ files to extract secret key from public discord bot repository using know plaintext attack.

• Omegapoint CTF 2023 - MISC - Nohtyp Playground

  Posted on:January 1, 2024 |  at 02:55 PM

  Python jail with no globals and only eval in locals. We need to dig deeper into python to get the flag.