Sigma rule: Google Workspace Government Attack Warning

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-f79cc1058ac6, updated 2026-04-28T00:00:00.000Z.

Rule

Title
Google Workspace Government Attack Warning
Status
experimental
Level
medium
Author
Tom Kluter
Date
2026-04-28
File
rules/cloud/gcp/gworkspace/login/gcp_gworkspace_govattack.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects a login attempt in Google Workspace flagged as a potential attack by a government-backed threat actor

Log source

product
gcp
service
google_workspace.login

Detection

selection:
    protoPayload.serviceName: 'login.googleapis.com'
    protoPayload.metadata.event.eventName: 'gov_attack_warning'
condition: selection

False positives (as the rule lists them)

  • Unknown

Tags

  • attack.privilege-escalation
  • attack.persistence
  • attack.initial-access
  • attack.impact
  • attack.stealth
  • attack.t1078

MITRE ATT&CK ids this rule names

References

Read on 2026-11-03T00:58:21.399Z under licence sigma-drl-1.1@d5f4c36a from https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/cloud/gcp/gworkspace/login/gcp_gworkspace_govattack.yml

Sources and licences

  • SigmaHQ

    "Google Workspace Government Attack Warning" by Tom Kluter (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/cloud/gcp/gworkspace/login/gcp_gworkspace_govattack.yml.
    Licensed under the Detection Rule License (DRL) 1.1: https://github.com/SigmaHQ/Detection-Rule-License

    Detection Rule License (DRL) 1.1

Cite this page

Dragons Eye Ransomware Tracker, "Sigma rule: Google Workspace Government Attack Warning",
entity page, dataset version ref-f79cc1058ac6, updated 2026-04-28T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/eafe6f2b-cfec-4612-aec2-49563c33a087 (accessed 2026-11-03).
Underlying source: SigmaHQ rule eafe6f2b-cfec-4612-aec2-49563c33a087, commit ccbb0369507f796db0b0ae6854c8a2be471b9d84.

Pages change. The dataset version identifies the data, but no archive of old versions is kept, so this citation cannot be replayed later.