Suspicious Google Full Network Traffic Packet Capture (via gcp.audit)

This rule detects potential full network packet capture in gcp. This feature can potentially be misused to read sensitive data from unencrypted internal traffic.

SigmamediumCloudv1
sigma
title: Suspicious Google Full Network Traffic Packet Capture (via gcp.audit)
id: 4a39f410-0e4e-5f9b-96f3-4d8ad53ff673
status: stable
description: This rule detects potential full network packet capture in gcp. This feature can potentially be misused to read sensitive data from unencrypted internal traffic.
references:
    - https://attack.mitre.org/techniques/T1074/
    - https://cloud.google.com/kubernetes-engine/docs/how-to/audit-logging
    - https://developers.google.com/resources/api-libraries/documentation/compute/v1/java/latest/com/google/api/services/compute/Compute.PacketMirrorings.html
author: Huntrule Team
date: 2026-05-31
tags:
    - attack.collection
    - attack.t1074
logsource:
    product: gcp
    service: gcp.audit
detection:
    selection:
        gcp.audit.method_name:
            - v*.Compute.PacketMirrorings.Get
            - v*.Compute.PacketMirrorings.Delete
            - v*.Compute.PacketMirrorings.Insert
            - v*.Compute.PacketMirrorings.Patch
            - v*.Compute.PacketMirrorings.List
            - v*.Compute.PacketMirrorings.aggregatedList
    condition: selection
falsepositives:
    - Unknown
level: medium

Known false positives

  • Unknown

Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.