{"id":"9e2575e7-2cb9-4da1-adc8-ed94221dca5e","title":"New Firewall Rule Added In Windows Firewall Exception List For Potential Suspicious Application","description":"Detects the addition of a new rule to the Windows Firewall exception list for an application located in a potentially suspicious location.","author":"frack113","status":"test","level":"high","date":"2023-02-26","modified":"2024-05-10","tags":["attack.defense-impairment","attack.t1686.003"],"technique_ids":["T1686.003"],"logsource":{"product":"windows","service":"firewall-as"},"falsepositives":["Unknown"],"references":["https://learn.microsoft.com/en-us/previous-versions/windows/it-pro/windows-server-2008-r2-and-2008/dd364427(v=ws.10)","https://app.any.run/tasks/7123e948-c91e-49e0-a813-00e8d72ab393/#"],"source_path":"rules/windows/builtin/firewall_as/win_firewall_as_add_rule_susp_folder.yml","source_sha256":"dcca562a224fbbb30109ccf24c4a779e5101aabad57b90426c88aaf9257e6951","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/windows/builtin/firewall_as/win_firewall_as_add_rule_susp_folder.yml","license":"Detection Rule License 1.1","license_url":"https://github.com/SigmaHQ/Detection-Rule-License/blob/main/LICENSE.Detection.Rules.md","yaml":"title: New Firewall Rule Added In Windows Firewall Exception List For Potential Suspicious Application\nid: 9e2575e7-2cb9-4da1-adc8-ed94221dca5e\nrelated:\n    - id: cde0a575-7d3d-4a49-9817-b8004a7bf105\n      type: derived\nstatus: test\ndescription: Detects the addition of a new rule to the Windows Firewall exception list for an application located in a potentially suspicious location.\nreferences:\n    - https://learn.microsoft.com/en-us/previous-versions/windows/it-pro/windows-server-2008-r2-and-2008/dd364427(v=ws.10)\n    - https://app.any.run/tasks/7123e948-c91e-49e0-a813-00e8d72ab393/#\nauthor: frack113\ndate: 2023-02-26\nmodified: 2024-05-10\ntags:\n    - attack.defense-impairment\n    - attack.t1686.003\nlogsource:\n    product: windows\n    service: firewall-as\ndetection:\n    selection:\n        EventID:\n            - 2004 # A rule has been added to the Windows Defender Firewall exception list. (Windows 10)\n            - 2071 # A rule has been added to the Windows Defender Firewall exception list. (Windows 11)\n            - 2097\n        ApplicationPath|contains:\n            - ':\\PerfLogs\\'\n            - ':\\Temp\\'\n            - ':\\Tmp\\'\n            - ':\\Users\\Public\\'\n            - ':\\Windows\\Tasks\\'\n            - ':\\Windows\\Temp\\'\n            - '\\AppData\\Local\\Temp\\'\n    filter_main_block:\n        Action: 2 # Block\n    condition: selection and not 1 of filter_main_*\nfalsepositives:\n    - Unknown\nlevel: high\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/9e2575e7-2cb9-4da1-adc8-ed94221dca5e.json","kind":"sigma"}