Potential Register_App.Vbs LOLScript Abuse

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About the rule

Rule Type

Standard

Rule Description

Detects potential abuse of the "register_app.vbs" script that is part of the Windows SDK. The script offers the capability to register new VSS/VDS Provider as a COM+ application. Attackers can use this to install malicious DLLs for persistence and execution.

Severity

Trouble

Rule Requirement

Criteria

Action1: actionname = "Process started" AND (PROCESSNAME endswith "\cscript.exe,\wscript.exe" OR ORIGINALFILENAME = "cscript.exe,wscript.exe") AND COMMANDLINE contains ".vbs -register " select Action1.HOSTNAME,Action1.MESSAGE,Action1.COMMANDLINE,Action1.FILE_NAME,Action1.PROCESSNAME,Action1.USERNAME,Action1.PARENTPROCESSNAME

Detection

Execution Mode

realtime

Log Sources

Windows

Author

Austin Songer @austinsonger