Potential Persistence Attempt Via ErrorHandler.Cmd
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About the rule
Rule Type
Standard
Rule Description
Detects creation of a file named "ErrorHandler.cmd" in the "C:\\WINDOWS\\Setup\\Scripts\\" directory which could be used as a method of persistence The content of C:\\WINDOWS\\Setup\\Scripts\\ErrorHandler.cmd is read whenever some tools under C:\\WINDOWS\\System32\\oobe\\ (e.g. Setup.exe) fail to run for any reason.
Severity
Trouble
Rule Requirement
Criteria
Action1: actionname = "File Created or Modified" AND FILENAME endswith "\WINDOWS\Setup\Scripts\ErrorHandler.cmd" OR OBJECTNAME endswith "\WINDOWS\Setup\Scripts\ErrorHandler.cmd" select Action1.HOSTNAME,Action1.MESSAGE,Action1.USERNAME,Action1.DOMAIN,Action1.OBJECTNAME,Action1.FILENAME,Action1.PROCESSNAME
Detection
Execution Mode
realtime
Log Sources
Windows
Author
Nasreddine Bencherchali (Nextron Systems)
