firewall_as

A Rule Has Been Deleted From The Windows Firewall Exception List

Apr 28, 2026 · attack.defense-impairment attack.t1686.003 ·

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Detects when a single rules or all of the rules have been deleted from the Windows Defender Firewall

All Rules Have Been Deleted From The Windows Firewall Configuration

Apr 28, 2026 · attack.defense-impairment attack.t1686.003 ·

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Detects when a all the rules have been deleted from the Windows Defender Firewall configuration

New Firewall Rule Added In Windows Firewall Exception List For Potential Suspicious Application

Apr 28, 2026 · attack.defense-impairment attack.t1686.003 ·

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Detects the addition of a new rule to the Windows Firewall exception list for an application located in a potentially suspicious location.

New Firewall Rule Added In Windows Firewall Exception List Via WmiPrvSE.EXE

Apr 28, 2026 · attack.defense-impairment attack.t1686.003 ·

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Detects the addition of a new "Allow" firewall rule by the WMI process (WmiPrvSE.EXE). This can occur if an attacker leverages PowerShell cmdlets such as "New-NetFirewallRule", or directly uses WMI CIM classes such as "MSFT_NetFirewallRule".

The Windows Defender Firewall Service Failed To Load Group Policy

Apr 28, 2026 · attack.defense-impairment attack.t1686.003 ·

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Detects activity when The Windows Defender Firewall service failed to load Group Policy

Uncommon New Firewall Rule Added In Windows Firewall Exception List

Apr 28, 2026 · attack.defense-impairment attack.t1686.003 ·

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Detects when a rule has been added to the Windows Firewall exception list

Windows Defender Firewall Has Been Reset To Its Default Configuration

Apr 28, 2026 · attack.defense-impairment attack.t1686.003 ·

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Detects activity when Windows Defender Firewall has been reset to its default configuration