Chronicle YARA-L

rule.yaral → deploy Chronicle

Deploy YARA-L rules to Chronicle, bringing Google Chronicle detection to the SIEM as code.

Use it when the SIEM is Chronicle and you want detection-as-code: YARA-L rules (Chronicle's detection language) are written in the repo and deployed via the API or UI — coverage as code. It's Chronicle's detection pipeline: the versioned rule (rule.yaral) and deployed, with validation in the editor. In purple teaming with Chronicle, YARA-L rules are deployed and validated with simulations (Stratus for cloud, atomics for the rest) — measured coverage.

Don't use it without the platform: Chronicle with connected sources (mapped UDM) is the requirement — rules on UDM without data don't match. And watch out: YARA-L syntax is Chronicle-specific (not YARA) — rules are validated in the editor with real data before deployment; a mapping error (UDM fields) yields a rule that never matches. Automated deployment (the detection API) requires the configured pipeline — without it, manual deployment from the UI. Validation with exercises (simulations) confirms the rule sees the attack.