Google Full Network Traffic Packet Capture

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

Sigma rule (View on GitHub)

 1title: Google Full Network Traffic Packet Capture
 2id: 980a7598-1e7f-4962-9372-2d754c930d0e
 3status: test
 4description: Identifies potential full network packet capture in gcp. This feature can potentially be abused to read sensitive data from unencrypted internal traffic.
 5references:
 6    - https://cloud.google.com/kubernetes-engine/docs/how-to/audit-logging
 7    - https://developers.google.com/resources/api-libraries/documentation/compute/v1/java/latest/com/google/api/services/compute/Compute.PacketMirrorings.html
 8author: Austin Songer @austinsonger
 9date: 2021-08-13
10modified: 2022-10-09
11tags:
12    - attack.collection
13    - attack.t1074
14logsource:
15    product: gcp
16    service: gcp.audit
17detection:
18    selection:
19        gcp.audit.method_name:
20            - v*.Compute.PacketMirrorings.Get
21            - v*.Compute.PacketMirrorings.Delete
22            - v*.Compute.PacketMirrorings.Insert
23            - v*.Compute.PacketMirrorings.Patch
24            - v*.Compute.PacketMirrorings.List
25            - v*.Compute.PacketMirrorings.aggregatedList
26    condition: selection
27falsepositives:
28    - Full Network Packet Capture may be done by a system or network administrator.
29    - If known behavior is causing false positives, it can be exempted from the rule.
30level: medium

References

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