Microsoft Cyberattack Simulator

Microsoft Cyberattack Simulator

Microsoft has released an open-source cyberattack simulator that allows security researchers and data scientists to create simulated network environments and see how they fare against AI-controlled cyber agents.

This simulator is being released as an open-source project named ‘CyberBattleSim‘ built using a Python-based Open AI Gym interface. 

The Microsoft 365 Defender Research team created CyberBattleSim to model how a threat actor spreads laterally through a network after its initial compromise.

“The environment consists of a network of computer nodes. It is parameterized by a fixed network topology and a set of predefined vulnerabilities that an agent can exploit to laterally move through the network.”

“The simulated attacker’s goal is to take ownership of some portion of the network by exploiting these planted vulnerabilities. While the simulated attacker moves through the network, a defender agent watches the network activity to detect the presence of the attacker and contain the attack,” the Microsoft 365 Defender Research Team explains in a new blog post.

To build their simulated environment, researchers will create various nodes on the network and indicate that services are running on each node, their vulnerabilities, and how the device is protected.

Automated cyber agents (threat actors) are then deployed in the environment, where they randomly select actions to perform against the various nodes to take control over them.

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