Mario Madersbacher Writeups CTFtime GitHub

Mario
Madersbacher

I'm working toward red teaming. Right now that means capture the flag, and taking real software apart to find where it gives.

I'm eighteen. Capture the flag is how I train — web, reversing, crypto, forensics — and a scoreboard every weekend keeps me honest about how much I actually know. When a competition ends, the same habit goes at production tools: I read the source, find the bug, and send the fix to the people who maintain it.

All of it points the same direction. I want to end up on a red team — the person who gets paid to find the way in before someone who means it does.

Capture the flag

Recent finishes. I play as telqrrrr, with a small team.

3rd
BrunnerCTF 2026
Jeopardy · Aug 2026
of 1102 teams
2nd
MntcrlCTF 2026
Jeopardy · Jun 2026
of 118 teams
37th
SAS CTF 2026 Quals
Qualifier · Jun 2026
of 515 teams
255th
boroCTF 2026
Jeopardy · Jun 2026
of 819 teams

Every result is on CTFtime if you want to check it.

My own tools

I build in Rust and Go too — local network and IoT discovery, API recon, packet inspection. Usually because I wanted the tool to exist, or wanted to understand how the real one works by writing my own. It's on GitHub.

Get in touch

Hiring for red-team or security work, or you've got a problem worth a weekend on — reach me by email, or on GitHub and CTFtime.

Mario Madersbacher, 2026