Youngjun Chang

Experience

• 

  AhnLab, Inc.

  Jul 2002 - Mar 2014

  • Write threat analysis report and blog entries to educate reader on threats and protections• Participate in invitation only Peer-to-Peer groups processing and analyzing malwares and threat trends• Research future threats• Providing training materials for employees and customers• Analyze and process malware, interfacing with security vendors for detection and resolution • Analyze and process malware• Write signatures and classification for malware• Helping Technical Support with malware cases• Testing of detection and disinfection solutions against different types of malware• Investigation of internal and external (on-site) malware outbreaks and local infections • Handling of incoming customer cases, malware analysis, creation of descriptions and disinfection instructions• Helping Technical Support with malware cases, 24/7 services including night and weekend on-call• Testing of detection and disinfection solutions against different types of malware• Investigation of internal and external (on-site) malware outbreaks and local infections

  • Senior Advanced Threat Researcher

    Apr 2009 - Mar 2014

  • Anti-Virus Researcher

    Mar 2004 - Mar 2009

  • Security Response Engineer

    Jul 2002 - Feb 2004
• 

  Samsung Electronics

  Apr 2014 - Mar 2017

  Senior Information Security Engineer

  • Incident Response Handling and Analysis • Malware Foresic and Investgation• Malware responds and analysis • Write Threat Analysis and Research Report • Participate in invitation only Peer-to-Peer groups processing and analyzing Threat Intelligence• Advising Information Security and Internet Threats• Providing Security Awareness training for employees

• 

  IBM

  Mar 2017 - Dec 2017

  Security Intelligence Analyst

  • Analyzing Internal and external Threat Intelligence• Participate in invitation only Peer-to-Peer groups processing and analyzing Threat Intelligence• Building use cases from Threat Intelligence analysis • Creating Indicates of cyber threat and attack• Seek and Destroy a internal threats for Threat Hunting• Write Threat Analysis and Research Report • Advising Information Security and Internet Threats

• 

  NSHC

  Jan 2018 - now

  The ThreatRecon Team is the Cyber Threat Intelligence division of NSHC Threat Research LabTeam Blog : https://redalert.nshc.net/blog/Team Twitter : https://twitter.com/nshcthreatrecon• Management of ThreatRecon Team's Research & Project • Technical adviser for ThreatRecon Team's researcher• Technical Interface and Coordination of ThreatRecon Team• Individual Contributor of Threat Research • Analyzing Threat Intelligence• Participate in invitation only Peer-to-Peer groups processing and analyzing Threat Intelligence• Creating Indicatoes of cyber threat and attack• Write Threat Analysis and Research Report • Advising Information Security and Internet Threats

  • Director of Threat Research Lab

    Jan 2023 - now

  • Head of ThreatRecon Team

    Jan 2019 - now

  • Principal Threat Intelligence Researcher

    Jan 2018 - now