Jason Geffner is a world-renowned industry thought-leader in the fields of computer security and reverse engineering. He has been interviewed by Forbes, Fortune, CBS, AP, CSO Magazine, c|net, PCWorld, Dark Reading, and Threatpost, and has been featured on Slashdot, The Register, SC Magazine, ZDNet and Computerworld. Geffner holds several patents, is the discoverer of VENOM, and the inventor of Tortilla. He has been invited to present numerous times at Black Hat, RSA Conference, CanSecWest, OWASP, REcon, ISOI, Lockdown, and other industry conferences, in addition to delivering training to the United States Air Force, Japan’s National Police Agency, and private industry.
Geffner joined CrowdStrike in 2012, where he performs in-depth reverse engineering of highly complex malware and exploits developed by nation-state adversaries and organized crime groups. His intelligence research attributes malware, exploits, lateral movement tools, and command-and-control protocols to unique actors. Geffner authors comprehensive reports for the technology, industrial, financial, energy, and government sectors to provide actionable intelligence for customers to understand who is attacking them, how they’re being attacked, what information is being stolen, and how to defend their systems and raise the bar against the attackers.
Before joining CrowdStrike, Geffner worked for NGS Secure from 2007-2012 as a Principal Security Consultant. He focused on performing security reviews of source code and designs, reverse engineering software protection methods and DRM protection methods, penetration testing web applications and network infrastructures, and developing automated security analysis tools.
Prior to joining NGS, he spent three years as a Reverse Engineer on Microsoft Corporation’s Anti-Malware Team, where his work involved analyzing malware samples, de-obfuscating binaries, and writing tools for analysis and automation. He was the Security Research & Response Team owner of the Windows Malicious Software Removal Tool (MSRT). Geffner authored tens of thousands of malware signatures and countless written reports based on static and dynamic analyses of obfuscated binaries. His work on the MSRT helped hundreds of millions of Windows users each month keep their computers safe and secure. While at Microsoft, Geffner was recognized for his reverse engineering skills and for his efforts to drive awareness of reverse engineering best practices throughout the company by being given the formal job title “Reverse Engineer”; he was the only Microsoft employee with this title.
Geffner has been a Program Committee member of the Reverse Engineering Conference (REcon) and of the International Conference on Malicious and Unwanted Software. He’s often credited in industry talks and publications and has been actively reverse engineering and analyzing software protection methods since 1995.