PurpleSharp: Automated Adversary Simulation – Mauricio Velazco – BH21 #2

Defending enterprise networks against attackers continues to present a difficult challenge for blue teams. Prevention has fallen short; improving detection & response capabilities has proven to be a step in the right direction. However, without the telemetry produced by adversary behavior, building new and testing existing detection capabilities will be constrained. PurpleSharp is an open source adversary simulation tool written in C# that executes adversary techniques within Windows Active Directory environments. The resulting telemetry can be leveraged to measure and improve the efficacy of a detection engineering program. PurpleSharp leverages the MITRE ATT&CK Framework and executes different techniques across the attack life cycle: execution, persistence, privilege escalation, credential access, lateral movement, etc.

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Full Episode Show Notes

PurpleSharp: Automated Adversary Simulation


Mauricio Velazco

Mauricio Velazco – Principal Threat Research Engineer at Splunk


Mauricio Velazco (@mvelazco) is a Peruvian, information security professionalwith more than a decade of work experience across different roles on both offensive and defensive security. In his current role as a Principal Threat Researcher on Splunk’s Threat Research Team, Mauricio focuses on adversary simulation and threat detection. Prior to Splunk, he led the Threat Management team at a Fortune 500 organization. Mauricio has presented/hosted workshops at conferences like Defcon, BlackHat, Derbycon, BSides, SANS, etc.


Tyler Robinson

Tyler Robinson – Director of Offensive Security & Research at Trimarc and Founder & CEO of Dark Element at Trimarc Security


As the Managing Director of Offensive Security & Research at Trimarc, Tyler leads a team of high-performance security professionals within the offensive security field by simulating sophisticated adversaries and creating scalable offensive security platforms using the latest techniques as seen in the wild. With over 2 decades of experience, Tyler specializes in Red Teaming, APT threat modeling, blackbox network penetration testing, and Physical/Social-Engineering. Tyler has presented at multiple conferences including BSides, DefCon and Blackhat panels, SANS security events and to multiple branches of the military.