Potentially Suspicious Execution Of Regasm/Regsvcs With Uncommon Extension

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About the rule

Rule Type

Standard

Rule Description

Detects potentially suspicious execution of the Regasm/Regsvcs utilities with an uncommon extension.

Severity

Trouble

Rule Requirement

Criteria

Action1: actionname = "Process started" AND (PROCESSNAME endswith "\Regsvcs.exe,\Regasm.exe" OR ORIGINALFILENAME = "RegSvcs.exe,RegAsm.exe") AND COMMANDLINE contains ".dat,.gif,.jpeg,.jpg,.png,.txt" select Action1.HOSTNAME,Action1.MESSAGE,Action1.COMMANDLINE,Action1.FILE_NAME,Action1.PROCESSNAME,Action1.USERNAME,Action1.PARENTPROCESSNAME

Detection

Execution Mode

realtime

Log Sources

Windows

Author

Nasreddine Bencherchali (Nextron Systems)