New Windows Firewall Rule Added Via New-NetFirewallRule Cmdlet
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About the rule
Rule Type
Standard
Rule Description
Detects calls to the "New-NetFirewallRule" cmdlet from PowerShell in order to add a new firewall rule with an "Allow" action.
Severity
Attention
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 "New-NetFirewallRule " AND COMMANDLINE contains " -Action " AND COMMANDLINE contains "allow") select Action1.HOSTNAME,Action1.MESSAGE,Action1.COMMANDLINE,Action1.FILE_NAME,Action1.PROCESSNAME,Action1.USERNAME,Action1.PARENTPROCESSNAME
Detection
Execution Mode
realtime
Log Sources
Windows
Author
frack113
