AWS EC2 Full Network Packet Capture Detectededit

Identifies potential Traffic Mirroring in an Amazon Elastic Compute Cloud (EC2) instance. Traffic Mirroring is an Amazon VPC feature that you can use to copy network traffic from an Elastic network interface. This feature can potentially be abused to exfiltrate sensitive data from unencrypted internal traffic.

Rule type: query

Rule indices:

  • filebeat-*
  • logs-aws*

Severity: medium

Risk score: 47

Runs every: 10 minutes

Searches indices from: now-60m (Date Math format, see also Additional look-back time)

Maximum alerts per execution: 100



  • Elastic
  • Cloud
  • AWS
  • Continuous Monitoring
  • SecOps
  • Network Security

Version: 2 (version history)

Added (Elastic Stack release): 7.14.0

Last modified (Elastic Stack release): 7.15.0

Rule authors: Elastic, Austin Songer

Rule license: Elastic License v2

Potential false positivesedit

Traffic Mirroring may be done by a system or network administrator. Verify whether the user identity, user agent, and/or hostname should be making changes in your environment. Traffic Mirroring from unfamiliar users or hosts should be investigated. If known behavior is causing false positives, it can be exempted from the rule.

Investigation guideedit

## Config

The AWS Fleet integration, Filebeat module, or similarly structured data is required to be compatible with this rule.

Rule queryedit

event.dataset:aws.cloudtrail and and
event.action:(CreateTrafficMirrorFilter or
CreateTrafficMirrorFilterRule or CreateTrafficMirrorSession or
CreateTrafficMirrorTarget) and event.outcome:success

Threat mappingedit


Rule version historyedit

Version 2 (7.15.0 release)
  • Formatting only