Sungjae Hwang

Security Researcher

I am currently working for LG Electronics as a security researcher, and I have a 9 years of work experience in security area. From LG, I am performing penetration testing on embedded SWs, and developing automated methods for detecting vulnerabilities. Moreover, I am also developing security features which are adopted in smartphones and vehicle components. The security features that I am developing include secure boot, secure storage, crypto services, and simlock. Basically, my research work focuses on mobile & system security and program analysis. I am interested in finding new vulnerabilities using static and dynamic analysis methods.
You can see my security posts include CTF write-up HERE

Education

KAIST (Korea Advanced Institute of Science and Technology),
Ph.D, Information Security, 2018-Present (expected 2021)
Thesis: Towards Secure Interoperation in Android: A study of interoperation vulnerabilities in Android

KAIST (Korea Advanced Institute of Science and Technology),
M.S, Information Security, 2012-2014
Thesis: Self-Update Vulnerability in Android

University of Manchester,
B.S, Software Engineering, 2005-2008

Publication

  • JUSTGen: Effective Test Generation for Unspecified JNI Behaviors on JVMs
    Sungjae Hwang, Sungho Lee, Jihoon Kim, Sukyoung Ryu
    Proceedings of the 43nd ACM/IEEE International Conference on Software Engineering (ICSE), May 2021

  • All about Activity Injection: Threats, Semantics, Detection, and Defense
    Sungjae Hwang, Sungho Lee, Sukyoung Ryu
    Software: Practice and Experience (SPE), 2020

  • Gap between Theory and Practice : An Empirical Study of Security Patches in Solidity
    Sungjae Hwang, Sukyoung Ryu
    Proceedings of the 42nd ACM/IEEE International Conference on Software Engineering (ICSE), May 2020

  • All about Activity Injection: Threat, Semantics, and Detection
    Sungho Lee, Sungjae Hwang, Sukyoung Ryu
    Proceedings of the 32nd IEEE/ACM International Conference on Automated Software Engineering (ASE), November 2017

  • Bittersweet ADB: Attacks and Defenses
    Sungjae Hwang, Sungho Lee, Yongdae Kim, Sukyoung Ryu
    Proceeding of the 10th ACM Symposium on Information, Computer and Communication Security, April 2015

  • Update Vulnerability in Android
    Sungjae Hwang
    M.S. Thesis, KAIST 2014
    Advisor: Yongdae Kim, Co-Advisor: Sukyoung Ryu

  • A Technique of Symptoms Analysis over Time for Detection of APT Attacks
    Sangyong Choi, Sungjae Hwang
    International Conference on Smart Convergence Technologies and Applications (SCTA 2012)

Chess

  • Selected as a Member of South Korean Chess National Team in Summer Universiade Kazan, 2013
  • 1st Prize (Gold Medal) in Mind Sport Olympiad Chess Tournment, 2010
  • 1st Prize (Gold Medal) in Mind Sport Olympiad Chess Tournment, 2008
  • 1st Prize (Gold Medal) in Mind Sport Olympiad Chess Tournment, 2006
  • 3rd Prize (Bronze Medal) in Asian Dragon Chess Tournment, 2008
  • Participated 38th World Chess Olympiad as a member of South Korea National Team, 2008