Suspicious Scheduled Task Created via Registry
This rule detects suspicious creation or modification of Windows Scheduled Tasks via direct changes to the Registry, as captured by Sysmon Event IDs 12, 13, and 14. Adversaries often use this technique to establish persistence by creating malicious tasks that run at system startup or on a scheduled basis. The rule monitors the TaskCache registry paths specifically Tasks and Tree keys and excludes known legitimate operations by trusted system processes and users (e.g., taskhostw.exe, svchost.exe, SYSTEM, and service accounts) to reduce false positives.
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