About Me
Name: 정지민 (Jimin Jeong)
Nickname: mini-chip
Contact:
Education
Korea University (2022.04 ~ ) - Department of Cyber Defense
Affiliation
CyKor - KU hacking club & hacking team
Career
- Theori — Dreamhack Content Intern Researcher (2025.03 ~)
CTF Achievements
Highlights
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DEFCON 32 — Finalist (Team. Cold Fusion)
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DEFCON 33 — Finalist (Team. Cold Fusion)
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HITCON 2025 — 4th (Team. CTF Demon Hunter)
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Blue Water CTF 2024 — 2nd (Team. CyKor)
Placements
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CCE 2025 — 2nd (General Division) (Team. 초코민트 요리모 미니칩)
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Whitehat Contest 2025 — 1st (University Division) (Team. 무관탈출넘버원)
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LG Uplus CTF 2024 — 2nd (Team. roKyC)
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Lake CTF 24-25 — Finalist (Team. CyKor)
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Lake CTF 25-26 — Finalist (Team. CyKor)
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R3CTF 2025 — 7th (Team. CyKor)
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UIUCTF 2025 — 7th (Team. CyKor)
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and more
Focus
I primarily study reverse engineering, with a particular focus on obfuscation and code-concealment techniques—how to make programs harder to understand, analyze, and recover. I’m also occasionally interested in pwnable/system exploitation, and I’ve been thinking about ways to leverage unintended behaviors (e.g., vulnerability-driven behaviors) as building blocks for obfuscation or code-hiding designs.
I enjoy wargaming, mostly on a site called Dreamhack, and I’m a member of Team CyKor, participating in various CTFs to gain experience. Here is my Dreamhack user link.