{"id":"c187c075-bb3e-4c62-b4fa-beae0ffc211f","title":"A Rule Has Been Deleted From The Windows Firewall Exception List","description":"Detects when a single rules or all of the rules have been deleted from the Windows Defender Firewall","author":"frack113","status":"test","level":"medium","date":"2022-02-19","modified":"2024-08-29","tags":["attack.defense-impairment","attack.t1686.003"],"technique_ids":["T1686.003"],"logsource":{"product":"windows","service":"firewall-as"},"falsepositives":[],"references":["https://learn.microsoft.com/en-us/previous-versions/windows/it-pro/windows-server-2008-r2-and-2008/dd364427(v=ws.10)"],"source_path":"rules/windows/builtin/firewall_as/win_firewall_as_delete_rule.yml","source_sha256":"a6a76b4c8b847bdd8f04168540a49f9e2fe4dd09c32b246b870f0ab9ce2616b6","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/windows/builtin/firewall_as/win_firewall_as_delete_rule.yml","license":"Detection Rule License 1.1","license_url":"https://github.com/SigmaHQ/Detection-Rule-License/blob/main/LICENSE.Detection.Rules.md","yaml":"title: A Rule Has Been Deleted From The Windows Firewall Exception List\nid: c187c075-bb3e-4c62-b4fa-beae0ffc211f\nstatus: test\ndescription: Detects when a single rules or all of the rules have been deleted from the Windows Defender Firewall\nreferences:\n    - https://learn.microsoft.com/en-us/previous-versions/windows/it-pro/windows-server-2008-r2-and-2008/dd364427(v=ws.10)\nauthor: frack113\ndate: 2022-02-19\nmodified: 2024-08-29\ntags:\n    - attack.defense-impairment\n    - attack.t1686.003\nlogsource:\n    product: windows\n    service: firewall-as\ndetection:\n    selection:\n        EventID:\n            - 2006 # A rule has been deleted in the Windows Defender Firewall exception list\n            - 2052 # A rule has been deleted in the Windows Defender Firewall exception list. (Windows 11)\n    filter_main_generic:\n        ModifyingApplication|startswith:\n            - 'C:\\Program Files (x86)\\'\n            - 'C:\\Program Files\\'\n            - 'C:\\Windows\\WinSxS\\'\n    filter_main_svchost:\n        ModifyingApplication: 'C:\\Windows\\System32\\svchost.exe'\n    filter_optional_msmpeng:\n        ModifyingApplication|startswith: 'C:\\ProgramData\\Microsoft\\Windows Defender\\Platform\\'\n        ModifyingApplication|endswith: '\\MsMpEng.exe'\n    filter_main_null:\n        ModifyingApplication: null\n    filter_main_empty:\n        ModifyingApplication: ''\n    condition: selection and not 1 of filter_main_* and not 1 of filter_optional_*\nlevel: medium\n","validation":"yaml_parsed_not_backend_compiled_or_live_validated","techniques":[{"key":"enterprise/T1686.003","id":"T1686.003","name":"Windows Host Firewall","page":"techniques/enterprise/T1686.003/"}],"data_path":"data/detection-rules/c187c075-bb3e-4c62-b4fa-beae0ffc211f.json","kind":"sigma"}