{"id":"cd0a4943-0edd-42cf-b50c-06f77a10d4c1","title":"FortiGate - New Administrator Account Created","description":"Detects the creation of an administrator account on a Fortinet FortiGate Firewall.","author":"Marco Pedrinazzi @pedrinazziM (InTheCyber)","status":"experimental","level":"medium","date":"2025-11-01","modified":"","tags":["attack.persistence","attack.t1136.001"],"technique_ids":["T1136.001"],"logsource":{"product":"fortigate","service":"event"},"falsepositives":["An administrator account can be created for legitimate purposes. Investigate the account details to determine if it is authorized."],"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/390485493/config-system-admin","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_admin_account_created.yml","source_sha256":"91c1c46a70d3a3b6b1c9b980007fb189517a12ac9702d57738b5cef8b8f35d36","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/network/fortinet/fortigate/fortinet_fortigate_new_admin_account_created.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 Administrator Account Created\nid: cd0a4943-0edd-42cf-b50c-06f77a10d4c1\nstatus: experimental\ndescription: Detects the creation of an administrator account 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/390485493/config-system-admin\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.persistence\n    - attack.t1136.001\nlogsource:\n    product: fortigate\n    service: event\ndetection:\n    selection:\n        action: 'Add'\n        cfgpath: 'system.admin'\n    condition: selection\nfalsepositives:\n    - An administrator account can be created for legitimate purposes. Investigate the account details to determine if it is authorized.\nlevel: medium\n","validation":"yaml_parsed_not_backend_compiled_or_live_validated","techniques":[{"key":"enterprise/T1136.001","id":"T1136.001","name":"Local Account","page":"techniques/enterprise/T1136.001/"}],"data_path":"data/detection-rules/cd0a4943-0edd-42cf-b50c-06f77a10d4c1.json","kind":"sigma"}