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HighSigmaHQ Florian Roth (Nextron Systems)

Security Eventlog Cleared

One of the Windows Eventlogs has been cleared. e.g. caused by "wevtutil cl" command execution

Detection logic

Detection requirements

Platform: Windows
The rule states no platform. This is derived from the ATT&CK technique it maps to.
Log source product: windows
Log source service: security

Known benign triggers

Rollout of log collection agents (the setup routine often includes a reset of the local Eventlog)
System provisioning (system reset before the golden image creation)

References

Links the source published beside this detection. Reference is the link the source wrote, unmodified. Class is decided by this catalogue from the host and path, not stated by the source. Cited by counts published detections citing the same resource, including this one, and the sources beneath it count the repositories this catalogue ingests, which is not the same as independent research.
Reference	Class	Cited by
github.com/Azure/Azure-Sentinel/blob/f99542b94afe0ad2f19a82cc08262e7ac8e1428e/Detections/SecurityEvent/SecurityEventLogCleared.yaml	Tool	Only this detection cites it
twitter.com/deviouspolack/status/832535435960209408	Social post	3
www.hybrid-analysis.com/sample/027cc450ef5f8c5f653329641ec1fed91f694e0d229928963b30f6b0d7d3a745?environmentId=100	Unclassified	3

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