[TTA Best Paper] ObfSwin: Transformer-based Multi-class Obfuscation Classification for Windows Portable Executable
Junhyuk Kang, Jaewoo Lee, Wonsuk Choi, and Dong Hoon Lee.
CV
Publications
Classification of Binary Obfuscation Techniques in Windows Binaries Using a 3D Markov Matrix
Junhyuk Kang, Jiwon Lee, Hongjoo Jin, Dong Hoon Lee, and Wonsuk Choi.
Patents
- Junhyuk Kang, Jiwon Lee, Wonsuk Choi, and Dong Hoon Lee, “Method for Identification and Classification of Binary Obfuscation Techniques based on 3D Markov Matrix,” Republic of Korea Patent, Application No. 10-2025-0020400, Pending.
- Jinhyun Baek, Jiwon Lee, Junhyuk Kang, Dong Hoon Lee, and Wonsuk Choi, “Method for Strengthening LLM Defense Mechanism against Jailbreak Attacks based on Role Subdivision Learning,” Republic of Korea Patent, Application No. 10-2024-0190432, Pending.
- Junhyuk Kang, Jiwon Lee, Jinhyun Baek, Dong Hoon Lee, and Wonsuk Choi, “Method for Generating Web Application Firewall Detection Ruleset based on Large Language Model,” Republic of Korea Patent, Application No. 10-2024-0167813, Pending.
Scholarships
- Research Fellow, Brain Korea 21 Plus (BK21+), Ministry of Education (MOE), Korea (Funding: approx $19,000), 2024–2025
- Top 10, Best of the Best (BoB) 10th, Ministry of Science and ICT (MSIT), Korea (Prize: approx $7,000), 2022
CTFs
- 2nd Place, FIESTA 2025 (Financial Security Threat Analysis Competition), Financial Security Institute (FSI), Korea (Prize: approx $1,400), 2025
- 8th Place (Finalist), DEF CON CTF 33, Team ColdFusion, USA, 2025
- 2nd Place, Woori Bank & FSI Mock Hacking Competition, Woori Bank & Financial Security Institute (FSI), Korea (Prize: approx $2,200), 2021
- 1st Place, TS Security Threat Hunting Competition, Korea Transportation Safety Authority (KOTSA), Korea (Prize: approx $3,700), 2020
- 3rd Place, KOSPO Web Security Competition, Korea Southern Power Co., Ltd. (KOSPO), Korea (Prize: approx $1,100), 2020
Presentations and Lectures
- Speaker, “Security Risks in Low-code & No-code Environments”, Best of the Best (BoB) Conference, Korea, 2022
- Lecturer, Web Hacking & Defense (ICDX), Korea Western Power (KOWEPO) & National Intelligence Service (NIS), Korea, 2023
- Guest Lecturer, Web Security Fundamentals, HASH (Information Security Club), Sungshin Women’s University, Korea, 2023
- Lecturer, Web Security and Vulnerability Analysis, Social Security Information Service (SSIS), Korea, 2022
- Lecturer, Web Hacking & Defense (ICDX), Korea Authority of Land & Infrastructure Safety (KALIS) & NIS, Korea, 2022
- Lecturer, Web Hacking & Defense (ICDX), Korea Hydro & Nuclear Power (KHNP) & NIS, Korea, 2022
- Lecturer, Web Hacking Techniques, Korea Mid-Power (KOMIPO) & Ministry of Trade, Industry and Energy (MOTIE), Korea, 2022
- Mentor & Lecturer, Web Hacking Mentoring Program, Incognito, Korea, 2020
Activities
- Committee Member, Incident Response Committee, Cyber Security Hacking Group Research Society, National Security Investigation Bureau (KNPA), 2024–2025
- Committee Member, Digital Forensics Committee, Cyber Security Hacking Group Research Society, National Security Investigation Bureau (KNPA), 2023
- Project Leader (PL), Unmanned Store Vulnerability Analysis Team, Best of the Best (BoB) 11th, MSIT, 2022
- Committee Member, Russian Group Subcommittee, Cyber Security Hacking Group Research Society, National Security Investigation Bureau (KNPA), 2022
Skills
- AI / ML
- Software Obfuscation
- Hacking(Web, System)