{"id":"53059bc0-1472-438b-956a-7508a94a91f0","title":"Disable System Firewall","description":"Detects disabling of system firewalls which could be used by adversaries to bypass controls that limit usage of the network.","author":"Pawel Mazur","status":"test","level":"high","date":"2022-01-22","modified":"","tags":["attack.defense-impairment","attack.t1686"],"technique_ids":["T1686"],"logsource":{"product":"linux","service":"auditd"},"falsepositives":["Admin activity"],"references":["https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1562.004/T1562.004.md","https://firewalld.org/documentation/man-pages/firewall-cmd.html"],"source_path":"rules/linux/auditd/service_stop/lnx_auditd_disable_system_firewall.yml","source_sha256":"913f21f41ca301345804bcf72b1569318a23a6dfa56784a20b116cfa0cbbaaea","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/linux/auditd/service_stop/lnx_auditd_disable_system_firewall.yml","license":"Detection Rule License 1.1","license_url":"https://github.com/SigmaHQ/Detection-Rule-License/blob/main/LICENSE.Detection.Rules.md","yaml":"title: Disable System Firewall\nid: 53059bc0-1472-438b-956a-7508a94a91f0\nstatus: test\ndescription: Detects disabling of system firewalls which could be used by adversaries to bypass controls that limit usage of the network.\nreferences:\n    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1562.004/T1562.004.md\n    - https://firewalld.org/documentation/man-pages/firewall-cmd.html\nauthor: 'Pawel Mazur'\ndate: 2022-01-22\ntags:\n    - attack.defense-impairment\n    - attack.t1686\nlogsource:\n    product: linux\n    service: auditd\ndetection:\n    selection:\n        type: 'SERVICE_STOP'\n        unit:\n            - 'firewalld'\n            - 'iptables'\n            - 'ufw'\n    condition: selection\nfalsepositives:\n    - Admin activity\nlevel: high\n","validation":"yaml_parsed_not_backend_compiled_or_live_validated","techniques":[{"key":"enterprise/T1686","id":"T1686","name":"Disable or Modify System Firewall","page":"techniques/enterprise/T1686/"}],"data_path":"data/detection-rules/53059bc0-1472-438b-956a-7508a94a91f0.json","kind":"sigma"}