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HighSigmaHQ Ecco +4

Suspicious Eventlog Clearing or Configuration Change Activity

Detects the clearing or configuration tampering of EventLog using utilities such as "wevtutil", "powershell" and "wmic". This technique were seen used by threat actors and ransomware strains in order to evade defenses.

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 category: process_creation

Known benign triggers

Admin activity
Maintenance activity
Scripts and administrative tools used in the monitored environment

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
eqllib.readthedocs.io/en/latest/analytics/5b223758-07d6-4100-9e11-238cfdd0fe97.html	Unclassified	2
gist.github.com/fovtran/ac0624983c7722e80a8f5a4babb170ee	Tool	Only this detection cites it
github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1070.001/T1070.001.md	Detection test	2
jdhnet.wordpress.com/2017/12/19/changing-the-location-of-the-windows-event-logs/	Unclassified	Only this detection cites it
learn.microsoft.com/en-us/dotnet/api/system.diagnostics.eventing.reader.eventlogsession.clearlog?view=windowsdesktop-9.0&viewFallbackFrom=dotnet-plat-ext-5.0#System_Diagnostics_Eventing_Reader_EventLogSession_ClearLog_System_String_	Product documentation	2
learn.microsoft.com/en-us/dotnet/api/system.diagnostics.eventlog.clear	Product documentation	2
learn.microsoft.com/en-us/windows-server/administration/windows-commands/wevtutil	Product documentation	4from 2 sources
stackoverflow.com/questions/66011412/how-to-clear-a-event-log-in-powershell-7	Unclassified	2
www.linkedin.com/posts/huntress-labs_when-a-sketchy-incident-hits-your-network-activity-7304940371078238208-Th_l/?utm_source=share&utm_medium=member_desktop&rcm=ACoAAAJTlRcB28IaUtg03HUU-IdliwzoAL1flGc	Unclassified	Only this detection cites it

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