AWS EC2 Full Network Packet Capture Detected

Last updated 3 months ago on 2025-01-15

Created 4 years ago on 2021-05-05

About

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.

Tags

Domain: CloudData Source: AWSData Source: Amazon Web ServicesUse Case: Network Security MonitoringTactic: ExfiltrationTactic: CollectionLanguage: kuery

Severity

medium

Risk Score

MITRE ATT&CK™

Exfiltration (TA0010)(opens in a new tab or window)

↳ Automated Exfiltration (T1020)(opens in a new tab or window)

Collection (TA0009)(opens in a new tab or window)

↳ Data Staged (T1074)(opens in a new tab or window)

False Positive Examples

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.

License

Elastic License v2(opens in a new tab or window)

Definition

Rule Type: Query (Kibana Query Language)
Integration Pack: Prebuilt Security Detection Rules
Index Patterns: filebeat-*logs-aws.cloudtrail-*
Related Integrations: aws(opens in a new tab or window)
Query

event.dataset:aws.cloudtrail and event.provider:ec2.amazonaws.com and
event.action:(CreateTrafficMirrorFilter or CreateTrafficMirrorFilterRule or CreateTrafficMirrorSession or CreateTrafficMirrorTarget) and
event.outcome:success

Install detection rules in Elastic Security

Detect AWS EC2 Full Network Packet Capture Detected in the Elastic Security detection engine by installing this rule into your Elastic Stack.

To setup this rule, check out the installation guide for Prebuilt Security Detection Rules(opens in a new tab or window).