Potential Persistence Via Netsh Helper DLL
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About the rule
Rule Type
Standard
Rule Description
Detects the execution of netsh with "add helper" flag in order to add a custom helper DLL. This technique can be abused to add a malicious helper DLL that can be used as a persistence proxy that gets called when netsh.exe is executed.
Severity
Trouble
Rule Requirement
Criteria
Action1: actionname = "Process started" AND (ORIGINALFILENAME = "netsh.exe" OR PROCESSNAME endswith "\netsh.exe") AND (COMMANDLINE contains "add" AND COMMANDLINE contains "helper") select Action1.HOSTNAME,Action1.MESSAGE,Action1.COMMANDLINE,Action1.FILE_NAME,Action1.PROCESSNAME,Action1.USERNAME,Action1.PARENTPROCESSNAME
Detection
Execution Mode
realtime
Log Sources
Windows
Author
Victor Sergeev, oscd.community
