Run a notebook in your browser to see how a specific MITRE ATT&CK technique is detected without setting up a lab.
Use the playbook as a template to write your own threat hunting procedures that map to ATT&CK.
Study pre-written detection queries for specific attacker techniques to build or improve security monitoring rules.
Use the AI-assisted workflow structure to plan and document a hunt before running it in a real environment.
Notebooks can be run directly in a browser via Binder with no local installation required.
The Threat Hunter Playbook is an open-source reference project for cybersecurity professionals who do threat hunting, meaning they actively look for signs of attackers inside a network rather than waiting for alerts to fire. The project documents how to plan a hunt, what to look for, and how to write up findings in a way that others can learn from and reuse. All of the content is organized around the MITRE ATT&CK framework, which is a widely used public catalogue of tactics and techniques that attackers use after they have already broken into a system. By mapping each hunt to that catalogue, the playbook keeps its coverage consistent and comparable across different teams. The hunt documents are written as Jupyter notebooks, which are files that mix plain explanations, data analysis code, and query examples in one place. These notebooks are designed to be executable: you can run them against pre-recorded security datasets to see how a detection works without needing a live environment. A cloud-based service called Binder lets you open and run them directly in a browser without installing anything. The project is in a transition period where it is adding AI-assisted workflow support. The idea is not to hand hunting over to AI but to use it to help structure the planning stage, where a hunter defines what they are looking for, what data sources are relevant, and what a suspicious pattern would look like. A companion system called Agent Skills packages those reasoning steps into explicit workflows that both humans and AI tools can follow. The project is community-driven, maintained primarily by two security researchers, and published under an open-source license. Full documentation lives at threathunterplaybook.com.
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