このドキュメントでは、Security Command Center の脅威の検出結果のタイプについて説明します。脅威の検出結果は、クラウド リソースで潜在的な脅威が検出されたときに、脅威検出機能によって生成されます。使用可能な脅威の検出結果の一覧については、脅威の検出結果のインデックスをご覧ください。
概要
組織、フォルダ、プロジェクトで、不正な可能性のある行為者による AI サービスの異常な管理アクティビティが検出されました。異常なアクティビティは、次のいずれかになります。
[[["わかりやすい","easyToUnderstand","thumb-up"],["問題の解決に役立った","solvedMyProblem","thumb-up"],["その他","otherUp","thumb-up"]],[["わかりにくい","hardToUnderstand","thumb-down"],["情報またはサンプルコードが不正確","incorrectInformationOrSampleCode","thumb-down"],["必要な情報 / サンプルがない","missingTheInformationSamplesINeed","thumb-down"],["翻訳に関する問題","translationIssue","thumb-down"],["その他","otherDown","thumb-down"]],["最終更新日 2025-09-05 UTC。"],[],[],null,["| Premium and Enterprise [service tiers](/security-command-center/docs/service-tiers)\n\nThis document describes a threat finding type in Security Command Center. Threat findings are generated by\n[threat detectors](/security-command-center/docs/concepts-security-sources#threats) when they detect\na potential threat in your cloud resources. For a full list of available threat findings, see [Threat findings index](/security-command-center/docs/threat-findings-index).\n\nOverview\n\nAnomalous admin activity for AI services by a potentially malicious actor was\ndetected in an organization, folder, or project. Anomalous activity can be\neither of the following:\n\n- New activity by a principal in an organization, folder, or project\n- Activity that has not been seen in a while, performed by a principal in an organization, folder, or project\n\nHow to respond\n\nTo respond to this finding, do the following:\n\nStep 1: Review finding details\n\n1. Open the `Persistence: New AI API Method` finding as directed in [Reviewing findings](/security-command-center/docs/how-to-investigate-threats#reviewing_findings).\n2. In the finding details, on the **Summary** tab, note the values of the following fields:\n\n - Under **What was detected** :\n - **Principal email**: the account that made the call\n - **Method name**: the method that was called\n - AI resources: the potentially impacted AI resources, such as the Vertex AI resources and the AI model.\n - Under **Affected resource** :\n - **Resource display name**: the name of the affected resource, which can be the same as the name of the organization, folder, or project\n - **Resource path**: the location in the resource hierarchy where the activity took place\n\nStep 2: Research attack and response methods\n\n1. Review MITRE ATT\\&CK framework entries for this finding type: **Persistence**.\n2. Investigate whether the action was warranted in the organization, folder, or project and whether the action was taken by the legitimate owner of the account. The organization, folder, or project is displayed on the **Resource path** field and the account is displayed in the **Principal email** row.\n3. To develop a response plan, combine your investigation results with MITRE research.\n\nWhat's next\n\n- Learn [how to work with threat\n findings in Security Command Center](/security-command-center/docs/how-to-investigate-threats).\n- Refer to the [Threat findings index](/security-command-center/docs/threat-findings-index).\n- Learn how to [review a\n finding](/security-command-center/docs/how-to-investigate-threats#reviewing_findings) through the Google Cloud console.\n- Learn about the [services that\n generate threat findings](/security-command-center/docs/concepts-security-sources#threats)."]]
