Windows Firewall Disabled via PowerShell
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About the rule
Rule Type
Standard
Rule Description
Detects attempts to disable the Windows Firewall using PowerShell
Severity
Trouble
Rule Requirement
Criteria
Action1:
actionname = "Process started" AND (PROCESSNAME endswith "\powershell.exe,\pwsh.exe,\powershell_ise.exe" OR ORIGINALFILENAME = "PowerShell.EXE,pwsh.dll") AND (COMMANDLINE contains "Set-NetFirewallProfile " AND COMMANDLINE contains " -Enabled " AND COMMANDLINE contains " False") AND COMMANDLINE contains " -All ,Public,Domain,Private"
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
Tim Rauch, Elastic (idea)
