{"id":"6a7ba45c-63d8-473e-9736-2eaabff79964","title":"AWS EFS Fileshare Mount Modified or Deleted","description":"Detects when a EFS Fileshare Mount is modified or deleted. An adversary breaking any file system using the mount target that is being deleted, which might disrupt instances or applications using those mounts.","author":"Austin Songer @austinsonger","status":"test","level":"medium","date":"2021-08-15","modified":"2022-10-09","tags":["attack.impact","attack.t1485"],"technique_ids":["T1485"],"logsource":{"product":"aws","service":"cloudtrail"},"falsepositives":["Unknown"],"references":["https://docs.aws.amazon.com/efs/latest/ug/API_DeleteMountTarget.html"],"source_path":"rules/cloud/aws/cloudtrail/aws_efs_fileshare_mount_modified_or_deleted.yml","source_sha256":"ee799695295c2361326d555336a4f95121997e51f3d6714da3ce5671bf8036be","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/cloud/aws/cloudtrail/aws_efs_fileshare_mount_modified_or_deleted.yml","license":"Detection Rule License 1.1","license_url":"https://github.com/SigmaHQ/Detection-Rule-License/blob/main/LICENSE.Detection.Rules.md","yaml":"title: AWS EFS Fileshare Mount Modified or Deleted\nid: 6a7ba45c-63d8-473e-9736-2eaabff79964\nstatus: test\ndescription: Detects when a EFS Fileshare Mount is modified or deleted. An adversary breaking any file system using the mount target that is being deleted, which might disrupt instances or applications using those mounts.\nreferences:\n    - https://docs.aws.amazon.com/efs/latest/ug/API_DeleteMountTarget.html\nauthor: Austin Songer @austinsonger\ndate: 2021-08-15\nmodified: 2022-10-09\ntags:\n    - attack.impact\n    - attack.t1485\nlogsource:\n    product: aws\n    service: cloudtrail\ndetection:\n    selection:\n        eventSource: elasticfilesystem.amazonaws.com\n        eventName: DeleteMountTarget\n    condition: selection\nfalsepositives:\n    - Unknown\nlevel: medium\n","validation":"yaml_parsed_not_backend_compiled_or_live_validated","techniques":[{"key":"enterprise/T1485","id":"T1485","name":"Data Destruction","page":"techniques/enterprise/T1485/"}],"data_path":"data/detection-rules/6a7ba45c-63d8-473e-9736-2eaabff79964.json","kind":"sigma"}