{"id":"2c95fa8a-8b8d-4787-afce-7117ceb8e3da","title":"Time Machine Backup Disabled Via Tmutil - MacOS","description":"Detects disabling of Time Machine (Apple's automated backup utility software) via the native macOS backup utility \"tmutil\".\nAn attacker can use this to prevent backups from occurring.\n","author":"Pratinav Chandra","status":"test","level":"medium","date":"2024-05-29","modified":"","tags":["attack.impact","attack.t1490"],"technique_ids":["T1490"],"logsource":{"category":"process_creation","product":"macos"},"falsepositives":["Legitimate administrator activity"],"references":["https://github.com/redcanaryco/atomic-red-team/blob/master/atomics/T1490/T1490.md#atomic-test-12---disable-time-machine","https://www.loobins.io/binaries/tmutil/"],"source_path":"rules/macos/process_creation/proc_creation_macos_tmutil_disable_backup.yml","source_sha256":"47aeb8c74ea31a5698a8b084915c49d7e9edc89b317a407bc1d6e10eaf4c548d","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/macos/process_creation/proc_creation_macos_tmutil_disable_backup.yml","license":"Detection Rule License 1.1","license_url":"https://github.com/SigmaHQ/Detection-Rule-License/blob/main/LICENSE.Detection.Rules.md","yaml":"title: Time Machine Backup Disabled Via Tmutil - MacOS\nid: 2c95fa8a-8b8d-4787-afce-7117ceb8e3da\nstatus: test\ndescription: |\n    Detects disabling of Time Machine (Apple's automated backup utility software) via the native macOS backup utility \"tmutil\".\n    An attacker can use this to prevent backups from occurring.\nreferences:\n    - https://github.com/redcanaryco/atomic-red-team/blob/master/atomics/T1490/T1490.md#atomic-test-12---disable-time-machine\n    - https://www.loobins.io/binaries/tmutil/\nauthor: Pratinav Chandra\ndate: 2024-05-29\ntags:\n    - attack.impact\n    - attack.t1490\nlogsource:\n    category: process_creation\n    product: macos\ndetection:\n    selection_img:\n        - Image|endswith: '/tmutil'\n        - CommandLine|contains: 'tmutil'\n    selection_cmd:\n        CommandLine|contains: 'disable'\n    condition: all of selection_*\nfalsepositives:\n    - Legitimate administrator activity\nlevel: medium\n","validation":"yaml_parsed_not_backend_compiled_or_live_validated","techniques":[{"key":"enterprise/T1490","id":"T1490","name":"Inhibit System Recovery","page":"techniques/enterprise/T1490/"}],"data_path":"data/detection-rules/2c95fa8a-8b8d-4787-afce-7117ceb8e3da.json","kind":"sigma"}