Diskshadow Script Mode Execution

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About the rule

Rule Type

Standard

Rule Description

Detects execution of "Diskshadow.exe" in script mode using the "/s" flag. Attackers often abuse "diskshadow" to execute scripts that deleted the shadow copies on the systems. Investigate the content of the scripts and its location.

Severity

Trouble

Rule Requirement

Criteria

Action1: actionname = "Process started" AND (ORIGINALFILENAME = "diskshadow.exe" OR PROCESSNAME endswith "\diskshadow.exe") AND COMMANDLINE contains "-s ,/s ,–s ,—s ,―s " select Action1.HOSTNAME,Action1.MESSAGE,Action1.COMMANDLINE,Action1.FILE_NAME,Action1.PROCESSNAME,Action1.USERNAME,Action1.PARENTPROCESSNAME

Detection

Execution Mode

realtime

Log Sources

Windows

Author

Ivan Dyachkov, oscd.community