{"id":"e3fdf743-f05b-4051-990a-b66919be1743","title":"Change User Account Associated with the FAX Service","description":"Detect change of the user account associated with the FAX service to avoid the escalation problem.","author":"frack113","status":"test","level":"high","date":"2022-07-17","modified":"2022-12-30","tags":["attack.persistence","attack.defense-impairment","attack.t1112"],"technique_ids":["T1112"],"logsource":{"product":"windows","category":"registry_set"},"falsepositives":["Unknown"],"references":["https://twitter.com/dottor_morte/status/1544652325570191361","https://raw.githubusercontent.com/RiccardoAncarani/talks/master/F-Secure/unorthodox-lateral-movement.pdf"],"source_path":"rules/windows/registry/registry_set/registry_set_fax_change_service_user.yml","source_sha256":"d8427404bc1328d1162fca41fdb59e2e4f3e623977732af3b35503a8429047fb","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/windows/registry/registry_set/registry_set_fax_change_service_user.yml","license":"Detection Rule License 1.1","license_url":"https://github.com/SigmaHQ/Detection-Rule-License/blob/main/LICENSE.Detection.Rules.md","yaml":"title: Change User Account Associated with the FAX Service\nid: e3fdf743-f05b-4051-990a-b66919be1743\nstatus: test\ndescription: Detect change of the user account associated with the FAX service to avoid the escalation problem.\nreferences:\n    - https://twitter.com/dottor_morte/status/1544652325570191361\n    - https://raw.githubusercontent.com/RiccardoAncarani/talks/master/F-Secure/unorthodox-lateral-movement.pdf\nauthor: frack113\ndate: 2022-07-17\nmodified: 2022-12-30\ntags:\n    - attack.persistence\n    - attack.defense-impairment\n    - attack.t1112\nlogsource:\n    product: windows\n    category: registry_set\ndetection:\n    selection:\n        TargetObject: HKLM\\System\\CurrentControlSet\\Services\\Fax\\ObjectName\n    filter:\n        Details|contains: NetworkService\n    condition: selection and not filter\nfalsepositives:\n    - Unknown\nlevel: high\n","validation":"yaml_parsed_not_backend_compiled_or_live_validated","techniques":[{"key":"enterprise/T1112","id":"T1112","name":"Modify Registry","page":"techniques/enterprise/T1112/"}],"data_path":"data/detection-rules/e3fdf743-f05b-4051-990a-b66919be1743.json","kind":"sigma"}