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Red teams play a critical part in assessing the security of a network by actively probing it for weakness and vulnerabilities. Unlike penetration testing -- which is typically focused on exploiting vulnerabilities -- red teams assess the entire state of a network by emulating real adversaries, including their techniques, tactics, procedures, and goals. Unfortunately, deploying red teams is prohibitive: cost, repeatability, and expertise all make it difficult to consistently employ red team tests. We seek to solve this problem by creating a framework for automated red team emulation, focused on what the red team does post-compromise -- i.e., after the perimeter has been breached. Here, our program acts as an automated and intelligent red team, actively moving through the target network to test for weaknesses and train defenders. At its core, our framework uses an automated planner designed to accurately reason about future plans in the face of the vast amount of uncertainty in red teaming scenarios. Our solution is custom-developed, built on a logical encoding of the cyber environment and adversary profiles, using techniques from classical planning, Markov decision processes, and Monte Carlo simulations. In this paper, we report on the development of our framework, focusing on our planning system. We have successfully validated our planner against other techniques via a custom simulation. Our tool itself has successfully been deployed to identify vulnerabilities and is currently used to train defending blue teams.
Author(s):
Andy Applebaum
The MITRE Corporation
United States
Doug Miller
The MITRE Corporation
United States
Blake Strom
The MITRE Corporation
United States
Chris Korban
The MITRE Corporation
United States
Ross Wolf
The MITRE Corporation
United States