Rundll32 Execution Without CommandLine Parameters
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About the rule
Rule Type
Standard
Rule Description
Detects suspicious start of rundll32.exe without any parameters as found in CobaltStrike beacon activity
Severity
Trouble
Rule Requirement
Criteria
Action1: actionname = "Process started" AND COMMANDLINE endswith "\rundll32.exe,\rundll32.exe",\rundll32" AND PARENTPROCESSNAME notcontains "\AppData\Local\,\Microsoft\Edge" select Action1.HOSTNAME,Action1.MESSAGE,Action1.COMMANDLINE,Action1.FILE_NAME,Action1.PROCESSNAME,Action1.USERNAME,Action1.PARENTPROCESSNAME
Detection
Execution Mode
realtime
Log Sources
Windows
Author
Florian Roth (Nextron Systems)
