Hi, I'm Renko Varel Angelo.
I love Web Exploitation, Rev and Coffee.
Competitions
Won
- 1st Hology 9.0 CTF 2026
- 1st SATSIBER TNI Hack The City
- 1st The Ace CTF 2026
- 2nd Compfest 18 CTF
- 2nd NETCOMP 4.0 CTF
- Runner-up Gunadarma Code Week 2.0 CTF
- 7th HTB University CTF
Finalist
- Cyber Jawara 2025
- IFEST 2025
- National Cyber Week CTF 2024
- SATSIBER TNI Attack & Defense
- FIT CTF
- SRIFOTON CTF
- Recursion 1.0 CTF
- Compfest CTF 2025
- Schematics CTF 2025
- Cyberwave 1.0 CTF Top 10
Selected Work
-
01
CTF Challenge Authoring
I also design and write my own CTF challenges mostly web and reverse engineering.
-
02
Vulnerability Disclosure
Disclosed vulnerabilities on BMKG, Cimahi, and Kalimantan Barat.
Writeups
About
Bug hunter and reverse engineer.
I love bug hunting and doing reverse engineering while drinking coffee. Web apps and binaries both makes me curious about where apps could break.
I play CTF with PETIR, to improve all my skills and knowledge.
Experience
-
Mar 2026 – Present
Lead of Reverse Engineering
PETIR Bina Nusatara CTF team
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Aug 2025 – Present
CTF Member
PETIR Bina Nusatara CTF team
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Speaker
Seminar Garda Digital
Delivered a session to UBSI students on digital awareness and cybersecurity.
Education
-
Aug 2024 – Oct 2028
BINUS University
Expected graduation: October 2028
Contact
Let's connect.
