System Language Discovery
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About the rule
Rule Type
Standard
Rule Description
Detects attempts to identify the system’s language or locale for targeting or evasion.
Severity
Attention
Rule Requirement
Criteria
Action1:
actionname = "Process started" AND (( PROCESSNAME endswith "reg.exe,powershell.exe,pwsh.exe,pwsh-preview.exe,powershell_ise.exe,powershell-ise.exe,powershell.exe32,pwsh.exe32,cmd.exe,wmic.exe,cscript.exe,wscript.exe,mshta.exe,rundll32.exe,WmiPrvSE.exe,svchost.exe" OR ORIGINALFILENAME = "reg.exe,powershell.exe,pwsh.dll,pwsh-preview.exe,powershell_ise.exe,powershell-ise.exe,powershell.exe32,pwsh.exe32,cmd.exe,wmic.exe,cscript.exe,wscript.exe,mshta.exe,rundll32.exe,WmiPrvSE.exe,svchost.exe" ) AND COMMANDLINE contains "query" AND COMMANDLINE contains "Control\Nls\Language" )
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
@Marco Pedrinazzi (@pedrinazziM) (InTheCyber)
