Detect Renamed Psexec

Detect Renamed Psexec

Description

The following analytic identifies renamed instances of PsExec.exe being utilized on an endpoint. Most instances, it is highly probable to capture Psexec.exe or other SysInternal utility usage with the command-line argument of -accepteula. During triage, validate this is the legitimate version of PsExec by reviewing the PE metadata. In addition, review parallel processes for further suspicious behavior.

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To successfully implement this search you need to be ingesting information on process that include the name of the process responsible for the changes from your endpoints into the Endpoint datamodel in the Processes node. In addition, confirm the latest CIM App 4.20 or higher is installed and the latest TA for the endpoint product.

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