Zoltan (@zh4ck) is the Chief Technology Officer at MRG Effitas, a company focusing on AV testing.
Before joining MRG Effitas he worked as an IT Security expert in the financial industry for five years, and as a senior IT security consultant at one of the Big Four companies for two years. His primary areas of expertise are penetration testing, malware analysis, computer forensics and security monitoring. He released the Zombie Browser Tool that has POC malicious browser extensions for Firefox, Chrome and Safari. He is also the developer of the Hardware Firewall Bypass Kernel Driver (HWFWBypass), the Encrypted Browser Exploit Delivery tool (#IRONSQUIRREL) and the Sandbox tester tool to test Malware Analysis Sandboxes. He found and disclosed a vulnerability in IP cameras, and this vulnerability was exploited by the Persirai botnet, running on ˜600 000 cameras. He has been invited to give presentations at information security conferences worldwide including DEF CON, SyScan360, SAS2018, Virusbulletin, Disobey, Deepsec, Hacker Halted USA, Botconf, AusCERT, Nullcon, Hackcon, Shakacon, OHM, Nopcon, Hacktivity, and Ethical Hacking.