DeleteFileSystem
AWS
DeleteFileSystem
Event
Permanently deletes an EFS file system and all its data; all mount targets must be deleted first.
Security Context
- Destructive deletion of cloud resources can cause significant operational disruption, data loss, and extended recovery times.
Log Source
CloudTrail
Sample Event
Adversarial. Draco deletes the OCCAMY shared-staging EFS volume — a destructive impact event after he’s already siphoned data. Mount targets would have been deleted in preceding DeleteMountTarget events. T1485.
{ "eventVersion": "1.09", "userIdentity": { "type": "IAMUser", "principalId": "AIDADRAC0MALF0YBADGY", "arn": "arn:aws:iam::555123456789:user/draco", "accountId": "555123456789", "accessKeyId": "AKIADRAC0MALF0YEXAMP5", "userName": "draco", "sessionContext": { "attributes": { "creationDate": "2026-04-15T19:02:11Z", "mfaAuthenticated": "false" } } }, "eventTime": "2026-04-15T21:28:09Z", "eventSource": "elasticfilesystem.amazonaws.com", "eventName": "DeleteFileSystem", "awsRegion": "us-east-1", "sourceIPAddress": "203.0.113.66", "userAgent": "aws-cli/1.18.147 Python/3.7.10 Linux/5.4.0-1045-aws botocore/1.18.6", "requestParameters": { "fileSystemId": "fs-0occamy00staging01" }, "responseElements": null, "requestID": "90000000-0000-4000-8000-000011100000", "eventID": "90000000-0000-4000-8000-000011100001", "readOnly": false, "eventType": "AwsApiCall", "managementEvent": true, "recipientAccountId": "555123456789", "eventCategory": "Management", "tlsDetails": { "tlsVersion": "TLSv1.3", "cipherSuite": "TLS_AES_128_GCM_SHA256", "clientProvidedHostHeader": "elasticfilesystem.us-east-1.amazonaws.com" }}MITRE ATT&CK Mapping
Tactics: Impact
Techniques:
- T1485 — Data Destruction — Adversaries may destroy data and files on specific systems or in large numbers on a network to interrupt availability to systems, services, and network resources. Data destruction is likely to render stored data irrecoverable by forensic techniques through overwriting files or data on local and r...