MediumSigmaHQ Austin Songer @austinsonger

AWS EFS Fileshare Mount Modified or Deleted

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.

Detection logic

Detection requirements

Platform: Containers ESXi IaaS Linux macOS Windows
The rule states no platform. This is derived from the ATT&CK technique it maps to.
Log source product: aws
Log source service: cloudtrail

Known benign triggers

Unknown

References

Links the source published beside this detection. Reference is the link the source wrote, unmodified. Class is decided by this catalogue from the host and path, not stated by the source. Cited by counts published detections citing the same resource, including this one, and the sources beneath it count the repositories this catalogue ingests, which is not the same as independent research.
Reference	Class	Cited by
docs.aws.amazon.com/efs/latest/ug/API_DeleteMountTarget.html	Product documentation	2from 2 sources

Detection rules

AWS EFS Fileshare Mount Modified or Deleted

Detection logic

Detection requirements

Known benign triggers

MITRE ATT&CK mappings

References

From the source

Licence

Authorship

Detection rules