{"id":"f24ab7a8-f09a-4319-82c1-915586aa642b","title":"FortiGate - New Firewall Policy Added","description":"Detects the addition of a new firewall policy on a Fortinet FortiGate Firewall.","author":"Marco Pedrinazzi @pedrinazziM (InTheCyber)","status":"experimental","level":"medium","date":"2025-11-01","modified":"","tags":["attack.defense-impairment","attack.t1685"],"technique_ids":["T1685"],"logsource":{"product":"fortigate","service":"event"},"falsepositives":["A firewall policy can be added for legitimate purposes."],"references":["https://www.fortiguard.com/psirt/FG-IR-24-535","https://docs.fortinet.com/document/fortigate/7.6.4/fortios-log-message-reference/398/event","https://docs.fortinet.com/document/fortigate/7.6.4/cli-reference/333889629/config-firewall-policy","https://docs.fortinet.com/document/fortigate/7.6.4/fortios-log-message-reference/44547/44547-logid-event-config-objattr"],"source_path":"rules/network/fortinet/fortigate/fortinet_fortigate_new_firewall_policy_added.yml","source_sha256":"03994c6cc7a46bc0f0102402558004d225a5626ea8f06143353f9f524abda69c","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/network/fortinet/fortigate/fortinet_fortigate_new_firewall_policy_added.yml","license":"Detection Rule License 1.1","license_url":"https://github.com/SigmaHQ/Detection-Rule-License/blob/main/LICENSE.Detection.Rules.md","yaml":"title: FortiGate - New Firewall Policy Added\nid: f24ab7a8-f09a-4319-82c1-915586aa642b\nstatus: experimental\ndescription: Detects the addition of a new firewall policy on a Fortinet FortiGate Firewall.\nreferences:\n    - https://www.fortiguard.com/psirt/FG-IR-24-535\n    - https://docs.fortinet.com/document/fortigate/7.6.4/fortios-log-message-reference/398/event\n    - https://docs.fortinet.com/document/fortigate/7.6.4/cli-reference/333889629/config-firewall-policy\n    - https://docs.fortinet.com/document/fortigate/7.6.4/fortios-log-message-reference/44547/44547-logid-event-config-objattr\nauthor: Marco Pedrinazzi @pedrinazziM (InTheCyber)\ndate: 2025-11-01\ntags:\n    - attack.defense-impairment\n    - attack.t1685\nlogsource:\n    product: fortigate\n    service: event\ndetection:\n    selection:\n        action: 'Add'\n        cfgpath: 'firewall.policy'\n    condition: selection\nfalsepositives:\n    - A firewall policy can be added for legitimate purposes.\nlevel: medium\n","validation":"yaml_parsed_not_backend_compiled_or_live_validated","techniques":[{"key":"enterprise/T1685","id":"T1685","name":"Disable or Modify Tools","page":"techniques/enterprise/T1685/"}],"data_path":"data/detection-rules/f24ab7a8-f09a-4319-82c1-915586aa642b.json","kind":"sigma"}