AWS EC2 VM Export Failure — Sigma Rule

Rule metadata and linked tags

Author: Diogo Braz. Source status: test; severity: low. Source dates: 2020-04-16 / 2022-10-05.

{
  "product": "aws",
  "service": "cloudtrail"
}

Pinned original Sigma rule · Detection Rule License 1.1

Source SHA-256: 85fb35c3c3e279c3c4a00a0420097d9093cdcb563c4f2bfdfb3f1deedd1377f5

Detection logic

Original source YAML. Source-tag agreement is not proof of complete semantic coverage. This rule has not been compiled for a SIEM backend or validated against live telemetry here.

title: AWS EC2 VM Export Failure
id: 54b9a76a-3c71-4673-b4b3-2edb4566ea7b
status: test
description: An attempt to export an AWS EC2 instance has been detected. A VM Export might indicate an attempt to extract information from an instance.
references:
    - https://docs.aws.amazon.com/vm-import/latest/userguide/vmexport.html#export-instance
author: Diogo Braz
date: 2020-04-16
modified: 2022-10-05
tags:
    - attack.collection
    - attack.t1005
    - attack.exfiltration
    - attack.t1537
logsource:
    product: aws
    service: cloudtrail
detection:
    selection:
        eventName: 'CreateInstanceExportTask'
        eventSource: 'ec2.amazonaws.com'
    filter1:
        errorMessage|contains: '*'
    filter2:
        errorCode|contains: '*'
    filter3:
        responseElements|contains: 'Failure'
    condition: selection and not 1 of filter*
level: low

Original YAML and metadata in JSON

False positives

No reviewed association in this snapshot.

Source references

• https://docs.aws.amazon.com/vm-import/latest/userguide/vmexport.html#export-instance