Potential Shim Database Persistence via Sdbinst.EXE
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About the rule
Rule Type
Standard
Rule Description
Detects installation of a new shim using sdbinst.exe. Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by application shims
Severity
Trouble
Rule Requirement
Criteria
Action1: actionname = "Process started" AND ((PROCESSNAME endswith "\sdbinst.exe" OR ORIGINALFILENAME = "sdbinst.exe") AND COMMANDLINE contains ".sdb") AND (PARENTPROCESSNAME notendswith "\msiexec.exe" OR COMMANDLINE notcontains ":\Program Files (x86)\IIS Express\iisexpressshim.sdb,:\Program Files\IIS Express\iisexpressshim.sdb") select Action1.HOSTNAME,Action1.MESSAGE,Action1.COMMANDLINE,Action1.FILE_NAME,Action1.PROCESSNAME,Action1.USERNAME,Action1.PARENTPROCESSNAME
Detection
Execution Mode
realtime
Log Sources
Windows
Author
Markus Neis
