Shell32 DLL Execution in Suspicious Directory
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About the rule
Rule Type
Standard
Rule Description
Detects shell32.dll executing a DLL in a suspicious directory
Severity
Trouble
Rule Requirement
Criteria
Action1:
actionname = "Process started" AND (PROCESSNAME endswith "\rundll32.exe" OR ORIGINALFILENAME = "RUNDLL32.EXE") AND ((COMMANDLINE contains "shell32.dll" AND COMMANDLINE contains "Control_RunDLL") AND COMMANDLINE contains "%AppData%,%LocalAppData%,%Temp%,%tmp%,\AppData\,\Temp\,\Users\Public")
select Action1.HOSTNAME,Action1.MESSAGE,Action1.COMMANDLINE,Action1.FILE_NAME,Action1.PROCESSNAME,Action1.USERNAME,Action1.PARENTPROCESSNAME,Action1.DOMAIN,Action1.ORIGINALFILENAME,Action1.PARENTPROCESSID,Action1.PROCESSID,Action1.PRODUCT_NAME,Action1.SECURITYID
Detection
Execution Mode
realtime
Log Sources
Windows
Author
Christian Burkard (Nextron Systems)
