Archive: 2019

How I wrote a "hypervisor" for defcon ctf

(Full writeup coming out soon) Here's a story of how I wrote a very simple "hypervisor" for defcon ctf, or at least emulate a kernel mode code so that I can debug. ProblemI wanted to be

Confidence CTF 2019

WatchmenSo first glance at this binary, I noticed that it is a windows binary (ewww!) so that was kinda annoying. I also took a quick glance at the code, I saw some sort of assembly instructions (did

UTCTF-19

Last weekend I competed at UTCTF with team dcua (or at least representing dcua, as this was only open to American university students, and up to 5 people). Wow. UT has it's own CTF now! Woot. Now

TAMUCTF 2019

I competed in TAMUCTF as part of team dcua. Because this was a week long competition, by the end of it, basically many teams tied in terms of score, but we managed to get all the challenges the fastes

Terminals are cool!

Terminals are cool! There's no doubt about that... and even if you are not a seasoned CTF player, if you have really played with any Linux distribution, you would've known the ubiquity of the