Rundll32 Spawned Via Explorer.EXE
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About the rule
Rule Type
Standard
Rule Description
Detects execution of "rundll32.exe" with a parent process of Explorer.exe. This has been observed by variants of Raspberry Robin, as first reported by Red Canary.
Severity
Trouble
Rule Requirement
Criteria
Action1: actionname = "Process started" AND (PARENTPROCESSNAME endswith "\explorer.exe" AND (PROCESSNAME endswith "\rundll32.exe" OR ORIGINALFILENAME = "RUNDLL32.EXE")) AND COMMANDLINE notcontains " C:\Windows\System32\, -localserver 22d8c27b-47a1-48d1-ad08-7da7abd7961" select Action1.HOSTNAME,Action1.MESSAGE,Action1.COMMANDLINE,Action1.FILE_NAME,Action1.PROCESSNAME,Action1.USERNAME,Action1.PARENTPROCESSNAME
Detection
Execution Mode
realtime
Log Sources
Windows
Author
CD_ROM_
