Important Windows Eventlog Cleared

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About the rule

Rule Type

Standard

Rule Description

Detects the clearing of one of the Windows Core Eventlogs. e.g. caused by "wevtutil cl" command execution

Severity

Trouble

Rule Requirement

Criteria

Action1: actionname = "Event logs cleared" AND SOURCE = "Microsoft-Windows-Eventlog" AND TYPE = "Microsoft-Windows-PowerShell/Operational,Microsoft-Windows-Sysmon/Operational,PowerShellCore/Operational,Security,System,Windows PowerShell" select Action1.HOSTNAME,Action1.MESSAGE,Action1.DOMAIN,Action1.OBJECTNAME,Action1.USERNAME

Detection

Execution Mode

realtime

Log Sources

Windows

Author

Florian Roth (Nextron Systems), Tim Shelton, Nasreddine Bencherchali (Nextron Systems)