Potential Persistence Via Scrobj.dll COM Hijacking

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About the rule

Rule Type

Standard

Rule Description

Detect use of scrobj.dll as this DLL looks for the ScriptletURL key to get the location of the script to execute

Severity

Trouble

Rule Requirement

Criteria

Action1: actionname = "Registry value modified" AND (OBJECTNAME endswith "InprocServer32\(Default)" OR (OBJECTNAME endswith "InprocServer32" AND OBJECTVALUENAME = "(Default)")) AND INFORMATION = "C:\WINDOWS\system32\scrobj.dll" select Action1.HOSTNAME,Action1.MESSAGE,Action1.OBJECTNAME,Action1.PROCESSNAME,Action1.PREVVAL,Action1.CHANGES

Detection

Execution Mode

realtime

Log Sources

Windows

Author

frack113