{"id":"af202fd3-7bff-4212-a25a-fb34606cfcbe","title":"Modifying Crontab","description":"Detects suspicious modification of crontab file.","author":"Pawel Mazur","status":"test","level":"medium","date":"2022-04-16","modified":"","tags":["attack.privilege-escalation","attack.execution","attack.persistence","attack.t1053.003"],"technique_ids":["T1053.003"],"logsource":{"product":"linux","service":"cron"},"falsepositives":["Legitimate modification of crontab"],"references":["https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1053.003/T1053.003.md"],"source_path":"rules/linux/builtin/cron/lnx_cron_crontab_file_modification.yml","source_sha256":"57fae599a26cc85cc62453bdbff9c226cbffc940bf4e66dc2933244abe937f3e","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/linux/builtin/cron/lnx_cron_crontab_file_modification.yml","license":"Detection Rule License 1.1","license_url":"https://github.com/SigmaHQ/Detection-Rule-License/blob/main/LICENSE.Detection.Rules.md","yaml":"title: Modifying Crontab\nid: af202fd3-7bff-4212-a25a-fb34606cfcbe\nstatus: test\ndescription: Detects suspicious modification of crontab file.\nreferences:\n    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1053.003/T1053.003.md\nauthor: Pawel Mazur\ndate: 2022-04-16\ntags:\n    - attack.privilege-escalation\n    - attack.execution\n    - attack.persistence\n    - attack.t1053.003\nlogsource:\n    product: linux\n    service: cron\ndetection:\n    keywords:\n        - 'REPLACE'\n    condition: keywords\nfalsepositives:\n    - Legitimate modification of crontab\nlevel: medium\n","validation":"yaml_parsed_not_backend_compiled_or_live_validated","techniques":[{"key":"enterprise/T1053.003","id":"T1053.003","name":"Cron","page":"techniques/enterprise/T1053.003/"}],"data_path":"data/detection-rules/af202fd3-7bff-4212-a25a-fb34606cfcbe.json","kind":"sigma"}