[[["容易理解","easyToUnderstand","thumb-up"],["確實解決了我的問題","solvedMyProblem","thumb-up"],["其他","otherUp","thumb-up"]],[["難以理解","hardToUnderstand","thumb-down"],["資訊或程式碼範例有誤","incorrectInformationOrSampleCode","thumb-down"],["缺少我需要的資訊/範例","missingTheInformationSamplesINeed","thumb-down"],["翻譯問題","translationIssue","thumb-down"],["其他","otherDown","thumb-down"]],["上次更新時間:2025-09-05 (世界標準時間)。"],[],[],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\n`Anomalous Multistep Service Account Delegation` is detected by examining the Data\nAccess Audit Logs to see if any anomaly occurred in a service account\nimpersonation request.\n\nHow to respond\n\nTo respond to this finding, do the following:\n\nStep 1: Review finding details\n\n1. Open the `Privilege Escalation: Anomalous Multistep Service Account\n Delegation for Data Access` finding, as directed in\n [Reviewing findings](/security-command-center/docs/how-to-investigate-threats#reviewing_findings). The details panel for the\n finding opens to the **Summary** tab.\n\n2. On the **Summary** tab, review the information in the following sections:\n\n - **What was detected** , especially the following fields:\n - **Principal email**: the final service account in the impersonation request that was used to access Google Cloud\n - **Service name**: the API name of the Google Cloud service involved in the impersonation request\n - **Method name**: the method that was called\n - **Service account delegation information**: details of service accounts in the delegation chain, the principal at the bottom of the list is the caller of the impersonation request\n - **Affected resource**\n - **Related links** , especially the following fields:\n - **Cloud Logging URI**: link to Logging entries.\n - **MITRE ATT\\&CK method**: link to the MITRE ATT\\&CK documentation.\n - **Related findings**: links to any related findings.\n\nStep 2: Research attack and response methods\n\n1. Contact the owner of the service account in the **Principal email** field. Confirm whether the legitimate owner conducted the action.\n2. Investigate the principals in the delegation chain to verify whether the request is abnormal and if any account has been compromised.\n3. Contact the owner of the impersonation caller in the **Service account\n delegation info** list. Confirm whether the legitimate owner conducted the action.\n\nStep 3: Implement your response\n\n\nThe following response plan might be appropriate for this finding, but might also impact operations.\nCarefully evaluate the information you gather in your investigation to determine the best way to\nresolve findings.\n\n- Contact the owner of the project where the action was taken.\n- Consider [deleting the potentially compromised service account](/iam/docs/service-accounts-delete-undelete#deleting) and rotate and delete all service account access keys for the potentially compromised project. After deletion, resources that use the service account for authentication lose access. Before proceeding, your security team should identify all impacted resources and work with resource owners to ensure business continuity.\n- Work with your security team to identify unfamiliar resources, including Compute Engine instances, snapshots, service accounts, and IAM users. Delete resources not created with authorized accounts.\n- Respond to any notifications from Google Cloud Support.\n- To limit who can create service accounts, use the [Organization Policy Service](/resource-manager/docs/organization-policy/overview).\n- To identify and fix overly permissive roles, use [IAM Recommender](/iam/docs/recommender-overview).\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)."]]