2024-05-01 by Yannik Marchand
This writeup explains how I solved the Argonauts challenge during the CSCG qualifiers of 2024. Name: Argonauts Category: Pwn Difficulty: Hard Description: What a lovely emulator. It'd be a shame if anything were to happen to it. (I'm joking. Go break it. Here's the source code.) In the Argonauts challenge … Read more...
CTF
2024-03-20 by Yannik Marchand
Reverse engineering Nintendo's game server protocols has been one of my favorite and long-lasting projects so far. Since I started the project around 7 years ago, it has led to a popular open source repository, several bug bounties and more than 150 pages of documentation. This article provides an overview … Read more...
Nintendo
2024-03-14 by Yannik Marchand
Last weekend I played the Cyber Apocalypse CTF with VUBar. More than 12,000 players signed up for this CTF and it featured 67 challenges across 8 categories. The difficulty level ranged from very easy to insane. During this CTF, I was the first person that solved the insane reversing … Read more...
CTF
2024-03-01 by Yannik Marchand
Welcome! This will be my personal blog where I share writeups and technical stuff. I love reverse engineering, playing CTF and Nintendo games, so my articles will most likely cover one of these topics. For this first article, let me share one of my favorite YouTube channels. LiveOverflow has videos … Read more...