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Security Operations · Advanced

YARA-L

The detection rule language used in Google Security Operations to identify threats across UDM events.

Definition

YARA-L 2.0 rules have meta, events, match, outcome and condition sections, enabling single-event and multi-event correlation over time windows. Despite the name, it is distinct from YARA, which matches file content.

Example

A rule matching events where a user has more than 10 failed logins and then a success over 15 minutes.

Exam tip

Do not confuse YARA-L (log correlation in Google SecOps) with YARA (file pattern matching).

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