Potential Persistence Via MyComputer Registry Keys

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About the rule

Rule Type

Standard

Rule Description

Detects modification to the "Default" value of the "MyComputer" key and subkeys to point to a custom binary that will be launched whenever the associated action is executed (see reference section for example)

Severity

Trouble

Rule Requirement

Criteria

Action1: actionname = "Registry value modified" AND (OBJECTNAME contains "\Microsoft\Windows\CurrentVersion\Explorer\MyComputer" OR (OBJECTNAME endswith "\Microsoft\Windows\CurrentVersion\Explorer" AND OBJECTVALUENAME startswith "MyComputer")) AND (OBJECTNAME endswith "(Default)" OR OBJECTVALUENAME endswith "(Default)") select Action1.HOSTNAME,Action1.MESSAGE,Action1.OBJECTNAME,Action1.PROCESSNAME,Action1.PREVVAL,Action1.CHANGES

Detection

Execution Mode

realtime

Log Sources

Windows

Author

Nasreddine Bencherchali (Nextron Systems)