{"id":"eafe6f2b-cfec-4612-aec2-49563c33a087","title":"Google Workspace Government Attack Warning","description":"Detects a login attempt in Google Workspace flagged as a potential attack by a government-backed threat actor","author":"Tom Kluter","status":"experimental","level":"medium","date":"2026-04-28","modified":"","tags":["attack.privilege-escalation","attack.persistence","attack.initial-access","attack.impact","attack.stealth","attack.t1078"],"technique_ids":["T1078"],"logsource":{"product":"gcp","service":"google_workspace.login"},"falsepositives":["Unknown"],"references":["https://cloud.google.com/logging/docs/audit/gsuite-audit-logging","https://cloud.google.com/logging/docs/audit/understanding-audit-logs","https://developers.google.com/workspace/admin/reports/v1/appendix/activity/login#gov_attack_warning"],"source_path":"rules/cloud/gcp/gworkspace/login/gcp_gworkspace_govattack.yml","source_sha256":"463c397696f37a328222efeac230f842750904060b0c25276547d99abc05737f","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/cloud/gcp/gworkspace/login/gcp_gworkspace_govattack.yml","license":"Detection Rule License 1.1","license_url":"https://github.com/SigmaHQ/Detection-Rule-License/blob/main/LICENSE.Detection.Rules.md","yaml":"title: Google Workspace Government Attack Warning\nid: eafe6f2b-cfec-4612-aec2-49563c33a087\nstatus: experimental\ndescription: Detects a login attempt in Google Workspace flagged as a potential attack by a government-backed threat actor\nreferences:\n    - https://cloud.google.com/logging/docs/audit/gsuite-audit-logging\n    - https://cloud.google.com/logging/docs/audit/understanding-audit-logs\n    - https://developers.google.com/workspace/admin/reports/v1/appendix/activity/login#gov_attack_warning\nauthor: Tom Kluter\ndate: 2026-04-28\ntags:\n    - attack.privilege-escalation\n    - attack.persistence\n    - attack.initial-access\n    - attack.impact\n    - attack.stealth\n    - attack.t1078\nlogsource:\n    product: gcp\n    service: google_workspace.login\ndetection:\n    selection:\n        protoPayload.serviceName: 'login.googleapis.com'\n        protoPayload.metadata.event.eventName: 'gov_attack_warning'\n    condition: selection\nfalsepositives:\n    - Unknown\nlevel: medium\n","validation":"yaml_parsed_not_backend_compiled_or_live_validated","techniques":[{"key":"enterprise/T1078","id":"T1078","name":"Valid Accounts","page":"techniques/enterprise/T1078/"}],"data_path":"data/detection-rules/eafe6f2b-cfec-4612-aec2-49563c33a087.json","kind":"sigma"}