{"id":"347906f3-e207-4d18-ae5b-a9403d6bcdef","title":"Netsh Allow Group Policy on Microsoft Defender Firewall","description":"Adversaries may modify system firewalls in order to bypass controls limiting network usage","author":"frack113","status":"test","level":"medium","date":"2022-01-09","modified":"2023-02-14","tags":["attack.defense-impairment","attack.t1686.003"],"technique_ids":["T1686.003"],"logsource":{"category":"process_creation","product":"windows"},"falsepositives":["Legitimate administration activity"],"references":["https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1562.004/T1562.004.md#atomic-test-3---allow-smb-and-rdp-on-microsoft-defender-firewall","https://learn.microsoft.com/en-us/troubleshoot/windows-server/networking/netsh-advfirewall-firewall-control-firewall-behavior"],"source_path":"rules/windows/process_creation/proc_creation_win_netsh_fw_enable_group_rule.yml","source_sha256":"8f9377d34b18616b1aa1ca91342ba132cb6524d1194eb93d6510c5ff3f0575b8","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/windows/process_creation/proc_creation_win_netsh_fw_enable_group_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: Netsh Allow Group Policy on Microsoft Defender Firewall\nid: 347906f3-e207-4d18-ae5b-a9403d6bcdef\nstatus: test\ndescription: Adversaries may modify system firewalls in order to bypass controls limiting network usage\nreferences:\n    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1562.004/T1562.004.md#atomic-test-3---allow-smb-and-rdp-on-microsoft-defender-firewall\n    - https://learn.microsoft.com/en-us/troubleshoot/windows-server/networking/netsh-advfirewall-firewall-control-firewall-behavior\nauthor: frack113\ndate: 2022-01-09\nmodified: 2023-02-14\ntags:\n    - attack.defense-impairment\n    - attack.t1686.003\nlogsource:\n    category: process_creation\n    product: windows\ndetection:\n    selection_img:\n        - Image|endswith: '\\netsh.exe'\n        - OriginalFileName: 'netsh.exe'\n    selection_cli:\n        CommandLine|contains|all:\n            - 'advfirewall'\n            - 'firewall'\n            - 'set'\n            - 'rule'\n            - 'group='\n            - 'new'\n            - 'enable=Yes'\n    condition: all of selection_*\nfalsepositives:\n    - Legitimate administration activity\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/347906f3-e207-4d18-ae5b-a9403d6bcdef.json","kind":"sigma"}