AWS EFS Fileshare Mount Modified or Deleted

testmedium
log source: aws · cloudtrailauthor Austin Songer @austinsongerdate 2021-08-15
01

description

What this is, in brief.

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.

02

tags

attack.impactattack.t1485
03

rule source (YAML)

title: AWS EFS Fileshare Mount Modified or Deleted
id: 6a7ba45c-63d8-473e-9736-2eaabff79964
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
04

detects techniques (1)

ATT&CK techniques this enables or maps to.

05

references

External citations — patches, advisories, analysis.