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Purple Kerberos: Current attack strategies & defenses

  • Monday, March 11th, 2019 at 1:00 PM EDT (17:00:00 UTC)
  • Erik Van Buggenhout
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Overview

We have known Kerberos for quite a few years as a more secure authentication mechanism in Windows (especially when compared to NTLM and NTLMv2). In 2014, SANS Instructor Tim Medin was one of the first security practitioners / researchers to describe an effective attack strategy against Kerberos: Kerberoasting. Benjamin Delpy & Vincent Le Toux further developed Kerberos attack strategies in their infamous Mimikatz tool (Golden tickets, Silver tickets, & Skeleton keys). Join Erik in this webcast to discuss what attack strategies work in 2019 (& how?) + security controls for prevention and detection that can be applied!

Speaker Bio

Erik Van Buggenhout

Erik Van Buggenhout is the lead author of SEC599 - Defeating Advanced Adversaries. In addition to SEC599, Erik teaches SEC560 - Network Penetration Testing & Ethical Hacking and SEC542 - Web Application Penetration Testing & Ethical Hacking. He has been involved with SANS since 2009, first as a Mentor, working his way to Community Instructor in 2012 and finally becoming a Certified Instructor in 2016.

Erik loves explaining deeply technical concepts by using war stories, adding a few funny anecdotes here and there. As a testimony of his technical expertise, he has obtained the GSE, GCIA, GNFA, GPEN, GWAPT, GCIH, and GSEC certifications.

In addition to his work with SANS, Erik is the co-founder of Belgian cyber security firm NVISO, which focuses on high-end cyber security services, specializing in government, defense and the financial sector. Together with his team of 20+ technical experts, Erik delivers a wide array of technical security services, including penetration testing, security monitoring & incident response.

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