AWS EFS Fileshare Mount Modified or Deleted

Title: AWS EFS Fileshare Mount Modified or Deleted
Status: test
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.
References:
  -https://docs.aws.amazon.com/efs/latest/ug/API_DeleteMountTarget.html
Author: Austin Songer @austinsonger
Date: 2021-08-15
modified:2022-10-09
Tags:

• -'attack.impact'
• -'attack.t1485'

Logsource:

• product: aws
• service: cloudtrail

Detection:
  selection:
    eventSource: 'elasticfilesystem.amazonaws.com'
    eventName: 'DeleteMountTarget'
  condition:selection
Falsepositives:
  -Unknown
Level: medium