このページでは、Google Cloud コンソールで Sensitive Actions Service の検出結果を確認する方法について説明します。また、Sensitive Actions Service の検出結果の例についても説明します。
Sensitive Actions Service は Security Command Center の組み込みサービスです。このサービスは、Google Cloud の組織、フォルダ、プロジェクトで悪意をもって行われた場合にビジネスに損害を与える可能性のあるアクションを検出します。 詳細については、Sensitive Actions Service の概要をご覧ください。
Sensitive Actions Service の検出結果を確認する
Security Command Center のスタンダード ティアを有効にしていれば、Sensitive Actions Service は常に有効になっています。無効にすることはできません。Sensitive Actions Service の検出タイプの詳細については、検出結果をご覧ください。
Sensitive Actions Service は、機密性が高いとみなされるアクションを検出すると、検出結果とログエントリを作成します。検出結果は Google Cloud コンソールで確認できます。Cloud Logging でログエントリをクエリできます。機密アクション サービスをテストするには、機密性の高いアクションを実行して、Google Cloud コンソールの [検出結果] ページに検出結果が表示されることを確認します。詳細については、Sensitive Actions Service のテストをご覧ください。
Security Command Center で検出結果を確認する
Security Command Center の IAM ロールは、組織レベル、フォルダレベル、またはプロジェクト レベルで付与できます。検出結果、アセット、セキュリティ ソースを表示、編集、作成、更新する権限は、アクセス権が付与されているレベルによって異なります。Security Command Center のロールの詳細については、アクセス制御をご覧ください。
コンソールで Sensitive Actions Service の検出結果を確認する手順は次のとおりです。
Google Cloud コンソール
- Google Cloud コンソールで、Security Command Center の [検出結果] ページに移動します。
- Google Cloud プロジェクトまたは組織を選択します。
- [クイック フィルタ] セクションの [ソースの表示名] サブセクションで、[Sensitive Actions Service] を選択します。検出結果クエリの結果は、このソースからの検出結果のみを表示するように更新されます。
- 特定の検出結果の詳細を表示するには、[カテゴリ] 列の検出結果の名前をクリックします。検出結果の詳細パネルが開き、[概要] タブが表示されます。
- [概要] タブで、検出された内容、影響を受けるリソース、検出結果の修正手順（ある場合）に関する情報など、検出結果の詳細を確認します。
- 省略可: 検出結果の完全な JSON 定義を表示するには、[JSON] タブをクリックします。
Security Operations コンソール
-
Security Operations コンソールで、[検出結果] ページに移動します。
https://CUSTOMER_SUBDOMAIN.backstory.chronicle.security/posture/findings
CUSTOMER_SUBDOMAINは、お客様固有の ID に置き換えます。 - [集計] セクションで、[ソース表示名] サブセクションをクリックして展開します。
- [Sensitive Actions Service] を選択します。検出結果クエリの結果は、このソースからの検出結果のみを表示するように更新されます。
- 特定の検出結果の詳細を表示するには、[カテゴリ] 列の検出結果の名前をクリックします。検出結果の詳細パネルが開き、[概要] タブが表示されます。
- [概要] タブで、検出された内容、影響を受けるリソース、検出結果の修正手順（ある場合）に関する情報など、検出結果の詳細を確認します。
- 省略可: 検出結果の完全な JSON 定義を表示するには、[JSON] タブをクリックします。
同じアクターによって発生した検出結果を表示する
悪意のある行為者によって機密性の高いアクションが実行されたかどうかを調査する場合は、その行為者によって引き起こされた他の検出結果を検索することを検討してください。
同じアクターによって発生したすべての検出結果を表示する手順は次のとおりです。
- 検出結果を開いて詳細を表示します。
- [検出の詳細] ペインで、[プリンシパルのメール] の横にあるメールアドレスをコピーします。
- ペインを閉じます。
クエリエディタで、次のクエリを入力します。
access.principal_email="PRINCIPAL_EMAIL"PRINCIPAL_EMAIL は、以前にコピーしたメールアドレスに置き換えます。 Security Command Center には、指定したアクタが行った操作に関連するすべての検出結果が表示されます。
Cloud Logging での検出結果の表示
Sensitive Actions Service は、検出した機密性の高いアクションごとにログエントリを Google Cloud Platform ログに書き込みます。Security Command Center を有効にしていない場合でも、これらのログエントリは書き込まれます。
Cloud Logging で機密性の高いアクションのログエントリを表示するには、次の操作を行います。
Google Cloud コンソールの [ログ エクスプローラ] に移動します。
ページ上部にあるプロジェクト セレクタで、Sensitive Actions Service のログエントリを確認するプロジェクトを選択します。組織レベルのログエントリを表示するには、組織を選択します。
[クエリ] テキスト ボックスに、リソース定義「
resource.type="sensitiveaction.googleapis.com/Location"」を入力します。[RUN QUERY] をクリックします。クエリ結果テーブルが更新され、クエリ期間内に書き込まれた一致するログエントリが表示されます。
ログエントリの詳細を表示するには、テーブルの行をクリックして、[ネストされたフィールドを開く] をクリックします。
高度なログクエリを作成して、任意の数のログから一連のログエントリを指定できます。
検出結果のフォーマット例
このセクションでは、Google Cloud コンソールからエクスポートを作成したり、Security Command Center API で list メソッドを実行する場合に表示される Sensitive Actions Service の検出結果の JSON 出力について説明します。
この出力例には、検出結果で最も一般的なフィールドが含まれます。ただし、すべてのフィールドがすべての検出結果に表示されるとは限りません。実際に表示される出力は、リソースの構成と検出結果の種類と状態によって異なります。
検出結果の例を表示するには、次のノードを 1 つ以上開きます。
防御回避: 組織のポリシーの変更
この検出結果は、プロジェクト レベルの有効化には使用できません。
{ "findings": { "access": { "principalEmail": "PRINCIPAL_EMAIL", "callerIp": "PRINCIPAL_IP_ADDRESS", "callerIpGeo": { "regionCode": "US" }, "serviceName": "orgpolicy.googleapis.com", "methodName": "google.cloud.orgpolicy.v2.OrgPolicy.CreatePolicy", "principalSubject": "user:PRINCIPAL_EMAIL" }, "canonicalName": "organizations/ORGANIZATION_ID/sources/SOURCE_ID/findings/FINDING_ID", "category": "Defense Evasion: Organization Policy Changed", "contacts": { "technical": { "contacts": [ { "email": "EMAIL_ADDRESS_1" }, { "email": "EMAIL_ADDRESS_2" }, ] } }, "createTime": "2022-08-27T12:35:30.466Z", "database": {}, "eventTime": "2022-08-27T12:35:30.264Z", "exfiltration": {}, "findingClass": "OBSERVATION", "indicator": {}, "kubernetes": {}, "mitreAttack": { "primaryTactic": "DEFENSE_EVASION", "primaryTechniques": [ "IMPAIR_DEFENSES" ] }, "mute": "UNDEFINED", "name": "organizations/ORGANIZATION_ID/sources/SOURCE_ID/findings/FINDING_ID", "parent": "organizations/ORGANIZATION_ID/sources/SOURCE_ID", "parentDisplayName": "Sensitive Actions", "resourceName": "//orgpolicy.googleapis.com/organizations/ORGANIZATION_ID/policies/storage.publicAccessPrevention", "severity": "LOW", "sourceDisplayName": "Sensitive Actions Service", "state": "ACTIVE", "vulnerability": {}, "workflowState": "NEW" }, "resource": { "name": "//orgpolicy.googleapis.com/organizations/ORGANIZATION_ID/policies/storage.publicAccessPrevention", "display_name": "", "project_name": "", "project_display_name": "", "parent_name": "", "parent_display_name": "", "type": "", "folders": [] }, "sourceProperties": { "sourceId": { "organizationNumber": "ORGANIZATION_ID", "customerOrganizationNumber": "ORGANIZATION_ID" }, "detectionCategory": { "ruleName": "sensitive_action", "subRuleName": "change_organization_policy" }, "detectionPriority": "LOW", "affectedResources": [ { "gcpResourceName": "//orgpolicy.googleapis.com/organizations/ORGANIZATION_ID" }, { "gcpResourceName": "//cloudresourcemanager.googleapis.com/organizations/ORGANIZATION_ID" }, { "gcpResourceName": "//orgpolicy.googleapis.com/organizations/ORGANIZATION_ID/policies/storage.publicAccessPrevention" } ], "evidence": [ { "sourceLogId": { "resourceContainer": "organizations/ORGANIZATION_ID", "timestamp": { "seconds": "1661603725", "nanos": 12242032 }, "insertId": "INSERT_ID" } } ], "properties": {}, "findingId": "FINDING_ID", "contextUris": { "mitreUri": { "displayName": "MITRE Link", "url": "https://attack.mitre.org/techniques/T1562/" }, "cloudLoggingQueryUri": [ { "displayName": "Cloud Logging Query Link", "url": "https://console.cloud.google.com/logs/query;query=timestamp%3D%222022-08-27T12:35:25.012242032Z%22%0AinsertId%3D%22INSERT_ID%22%0Aresource.labels.project_id%3D%22%22?project=" } ], "relatedFindingUri": {} } } }
防御回避: 課金管理者の削除
この検出結果は、プロジェクト レベルの有効化には使用できません。
{ "findings": { "access": { "principalEmail": "PRINCIPAL_EMAIL", "callerIp": "PRINCIPAL_IP_ADDRESS", "callerIpGeo": {}, "serviceName": "cloudresourcemanager.googleapis.com", "methodName": "SetIamPolicy", "principalSubject": "user:PRINCIPAL_EMAIL" }, "assetDisplayName": "organizations/ORGANIZATION_ID", "assetId": "organizations/ORGANIZATION_ID/assets/ASSET_ID", "canonicalName": "organizations/ORGANIZATION_ID/sources/SOURCE_ID/findings/FINDING_ID", "category": "Defense Evasion: Remove Billing Admin", "contacts": { "technical": { "contacts": [ { "email": "EMAIL_ADDRESS_1" }, { "email": "EMAIL_ADDRESS_2" }, ] } }, "createTime": "2022-08-31T14:47:11.752Z", "database": {}, "eventTime": "2022-08-31T14:47:11.256Z", "exfiltration": {}, "findingClass": "OBSERVATION", "iamBindings": [ { "action": "REMOVE", "role": "roles/billing.admin", "member": "user:PRINCIPAL_ACCOUNT_CHANGED" } ], "indicator": {}, "kubernetes": {}, "mitreAttack": { "primaryTactic": "DEFENSE_EVASION", "primaryTechniques": [ "MODIFY_CLOUD_COMPUTE_INFRASTRUCTURE" ] }, "mute": "UNDEFINED", "name": "organizations/ORGANIZATION_ID/sources/SOURCE_ID/findings/FINDING_ID", "parent": "organizations/ORGANIZATION_ID/sources/SOURCE_ID", "parentDisplayName": "Sensitive Actions Service", "resourceName": "//cloudresourcemanager.googleapis.com/organizations/ORGANIZATION_ID", "severity": "LOW", "sourceDisplayName": "Sensitive Actions Service", "state": "ACTIVE", "vulnerability": {}, "workflowState": "NEW" }, "resource": { "name": "//cloudresourcemanager.googleapis.com/organizations/ORGANIZATION_ID", "display_name": "ORGANIZATION_NAME", "project_name": "", "project_display_name": "", "parent_name": "", "parent_display_name": "", "type": "google.cloud.resourcemanager.Organization", "folders": [] }, "sourceProperties": { "sourceId": { "organizationNumber": "ORGANIZATION_ID", "customerOrganizationNumber": "ORGANIZATION_ID" }, "detectionCategory": { "ruleName": "sensitive_action", "subRuleName": "remove_billing_admin" }, "detectionPriority": "LOW", "affectedResources": [ { "gcpResourceName": "//cloudresourcemanager.googleapis.com/organizations/ORGANIZATION_ID" } ], "evidence": [ { "sourceLogId": { "resourceContainer": "organizations/ORGANIZATION_ID", "timestamp": { "seconds": "1661957226", "nanos": 356329000 }, "insertId": "INSERT_ID" } } ], "properties": {}, "findingId": "FINDING_ID", "contextUris": { "mitreUri": { "displayName": "MITRE Link", "url": "https://attack.mitre.org/techniques/T1578/" }, "cloudLoggingQueryUri": [ { "displayName": "Cloud Logging Query Link", "url": "https://console.cloud.google.com/logs/query;query=timestamp%3D%222022-08-31T14:47:06.356329Z%22%0AinsertId%3D%22INSERT_ID%22%0Aresource.labels.project_id%3D%22%22?project=" } ], "relatedFindingUri": {} } } }
影響: GPU インスタンスの作成
{ "findings": { "access": { "principalEmail": "PRINCIPAL_EMAIL", "callerIp": "PRINCIPAL_IP_ADDRESS", "callerIpGeo": { "regionCode": "US" }, "serviceName": "compute.googleapis.com", "methodName": "beta.compute.instances.insert" }, "canonicalName": "projects/PROJECT_NUMBER/sources/SOURCE_ID/findings/FINDING_ID", "category": "Impact: GPU Instance Created", "contacts": { "technical": { "contacts": [ { "email": "EMAIL_ADDRESS_1" }, { "email": "EMAIL_ADDRESS_2" }, ] } }, "createTime": "2022-08-11T19:13:11.134Z", "database": {}, "eventTime": "2022-08-11T19:13:09.885Z", "exfiltration": {}, "findingClass": "OBSERVATION", "indicator": {}, "kubernetes": {}, "mitreAttack": { "primaryTactic": "IMPACT", "primaryTechniques": [ "RESOURCE_HIJACKING" ] }, "mute": "UNDEFINED", "name": "organizations/ORGANIZATION_ID/sources/SOURCE_ID/findings/FINDING_ID", "parent": "organizations/ORGANIZATION_ID/sources/SOURCE_ID", "parentDisplayName": "Sensitive Actions", "resourceName": "//compute.googleapis.com/projects/PROJECT_ID/zones/ZONE/instances/VM_INSTANCE_NAME", "severity": "LOW", "sourceDisplayName": "Sensitive Actions Service", "state": "ACTIVE", "vulnerability": {}, "workflowState": "NEW" }, "resource": { "name": "//compute.googleapis.com/projects/PROJECT_ID/zones/ZONE/instances/VM_INSTANCE_NAME", "display_name": "VM_INSTANCE_NAME", "project_name": "//cloudresourcemanager.googleapis.com/projects/PROJECT_NUMBER", "project_display_name": "PROJECT_ID", "parent_name": "//cloudresourcemanager.googleapis.com/projects/PROJECT_NUMBER", "parent_display_name": "PROJECT_ID", "type": "google.compute.Instance", "folders": [ { "resourceFolderDisplayName": "FOLDER_NAME", "resourceFolder": "//cloudresourcemanager.googleapis.com/folders/FOLDER_NUMBER" } ] }, "sourceProperties": { "sourceId": { "projectNumber": "PROJECT_NUMBER", "customerOrganizationNumber": "ORGANIZATION_ID" }, "detectionCategory": { "ruleName": "sensitive_action", "subRuleName": "gpu_instance_created" }, "detectionPriority": "LOW", "affectedResources": [ { "gcpResourceName": "//compute.googleapis.com/projects/PROJECT_ID/zones/ZONE/instances/VM_INSTANCE_NAME" }, { "gcpResourceName": "//cloudresourcemanager.googleapis.com/projects/PROJECT_NUMBER" } ], "evidence": [ { "sourceLogId": { "projectId": "PROJECT_ID", "resourceContainer": "projects/PROJECT_ID", "timestamp": { "seconds": "1660245184", "nanos": 578768000 }, "insertId": "INSERT_ID" } } ], "properties": {}, "findingId": "FINDING_ID", "contextUris": { "mitreUri": { "displayName": "MITRE Link", "url": "https://attack.mitre.org/techniques/T1496/" }, "cloudLoggingQueryUri": [ { "displayName": "Cloud Logging Query Link", "url": "https://console.cloud.google.com/logs/query;query=timestamp%3D%222022-08-11T19:13:04.578768Z%22%0AinsertId%3D%22INSERT_ID%22%0Aresource.labels.project_id%3D%22PROJECT_ID%22?project=PROJECT_ID" } ], "relatedFindingUri": {} } } }
影響: 多くのインスタンスの作成
{ "findings": { "access": { "principalEmail": "PRINCIPAL_EMAIL", "callerIpGeo": {}, "serviceName": "compute.googleapis.com", "methodName": "v1.compute.instances.insert", "principalSubject": "user:USER_EMAIL" }, "canonicalName": "projects/PROJECT_NUMBER/sources/SENSITIVE_ACTIONS_INSTANCE_NUMBER/findings/FINDING_ID", "category": "Impact: Many Instances Created", "contacts": { "technical": { "contacts": [ { "email": "EMAIL_ADDRESS_1" }, { "email": "EMAIL_ADDRESS_2" }, ] } }, "createTime": "2022-08-22T21:18:18.112Z", "database": {}, "eventTime": "2022-08-22T21:18:17.759Z", "exfiltration": {}, "findingClass": "OBSERVATION", "findingProviderId": "organizations/ORGANIZATION_ID/firstPartyFindingProviders/sensitive_actions", "indicator": {}, "kubernetes": {}, "mitreAttack": { "primaryTactic": "IMPACT", "primaryTechniques": [ "RESOURCE_HIJACKING" ] }, "mute": "UNDEFINED", "name": "organizations/ORGANIZATION_ID/sources/SENSITIVE_ACTIONS_INSTANCE_NUMBER/findings/FINDING_ID", "parent": "organizations/ORGANIZATION_ID/sources/SENSITIVE_ACTIONS_INSTANCE_NUMBER", "parentDisplayName": "Sensitive Actions", "resourceName": "//compute.googleapis.com/projects/PROJECT_ID/zones/ZONE/instances/VM_INSTANCE_NAME", "severity": "LOW", "sourceDisplayName": "Sensitive Actions", "state": "ACTIVE", "vulnerability": {}, "workflowState": "NEW" }, "resource": { "name": "//compute.googleapis.com/projects/PROJECT_ID/zones/ZONE/instances/VM_INSTANCE_NAME", "display_name": "", "project_name": "//cloudresourcemanager.googleapis.com/projects/PROJECT_NUMBER", "project_display_name": "PROJECT_ID", "parent_name": "//cloudresourcemanager.googleapis.com/projects/PROJECT_NUMBER", "parent_display_name": "PROJECT_ID", "type": "google.compute.Instance", "folders": [ { "resourceFolderDisplayName": "FOLDER_NAME", "resourceFolder": "//cloudresourcemanager.googleapis.com/folders/FOLDER_NUMBER" } ] }, "sourceProperties": { "sourceId": { "projectNumber": "PROJECT_NUMBER", "customerOrganizationNumber": "ORGANIZATION_ID" }, "detectionCategory": { "ruleName": "sensitive_action", "subRuleName": "many_instances_created" }, "detectionPriority": "LOW", "affectedResources": [ { "gcpResourceName": "//compute.googleapis.com/projects/PROJECT_ID/zones/ZONE/instances/VM_INSTANCE_NAME" }, { "gcpResourceName": "//cloudresourcemanager.googleapis.com/projects/PROJECT_NUMBER" } ], "evidence": [ { "sourceLogId": { "projectId": "PROJECT_ID", "resourceContainer": "projects/PROJECT_ID", "timestamp": { "seconds": "1661203092", "nanos": 314642000 }, "insertId": "INSERT_ID" } } ], "properties": {}, "findingId": "FINDING_ID", "contextUris": { "mitreUri": { "displayName": "MITRE Link", "url": "https://attack.mitre.org/techniques/T1496/" }, "cloudLoggingQueryUri": [ { "displayName": "Cloud Logging Query Link", "url": "https://console.cloud.google.com/logs/query;query=timestamp%3D%222022-08-22T21:18:12.314642Z%22%0AinsertId%3D%22INSERT_ID%22%0Aresource.labels.project_id%3D%22PROJECT_ID%22?project=PROJECT_ID" } ], "relatedFindingUri": {} } } }
影響: 多くのインスタンスの削除
{ "findings": { "access": { "principalEmail": "PRINCIPAL_EMAIL", "callerIpGeo": {}, "serviceName": "compute.googleapis.com", "methodName": "v1.compute.instances.delete", "principalSubject": "user:USER_EMAIL" }, "canonicalName": "projects/PROJECT_NUMBER/sources/SENSITIVE_ACTIONS_INSTANCE_NUMBER/findings/FINDING_ID", "category": "Impact: Many Instances Deleted", "contacts": { "technical": { "contacts": [ { "email": "EMAIL_ADDRESS_1" }, { "email": "EMAIL_ADDRESS_2" }, ] } }, "createTime": "2022-08-22T21:21:11.432Z", "database": {}, "eventTime": "2022-08-22T21:21:11.144Z", "exfiltration": {}, "findingClass": "OBSERVATION", "findingProviderId": "organizations/ORGANIZATION_ID/firstPartyFindingProviders/sensitive_actions", "indicator": {}, "kubernetes": {}, "mitreAttack": { "primaryTactic": "IMPACT", "primaryTechniques": [ "DATA_DESTRUCTION" ] }, "mute": "UNDEFINED", "name": "organizations/ORGANIZATION_ID/sources/SENSITIVE_ACTIONS_INSTANCE_NUMBER/findings/FINDING_ID", "parent": "organizations/ORGANIZATION_ID/sources/SENSITIVE_ACTIONS_INSTANCE_NUMBER", "parentDisplayName": "Sensitive Actions", "resourceName": "//compute.googleapis.com/projects/PROJECT_ID/zones/ZONE/instances/VM_INSTANCE_NAME", "severity": "LOW", "sourceDisplayName": "Sensitive Actions", "state": "ACTIVE", "vulnerability": {}, "workflowState": "NEW" }, "resource": { "name": "//compute.googleapis.com/projects/PROJECT_ID/zones/ZONE/instances/VM_INSTANCE_NAME", "display_name": "VM_INSTANCE_NAME", "project_name": "//cloudresourcemanager.googleapis.com/projects/PROJECT_NUMBER", "project_display_name": "PROJECT_ID", "parent_name": "//cloudresourcemanager.googleapis.com/projects/PROJECT_NUMBER", "parent_display_name": "PROJECT_ID", "type": "google.compute.Instance", "folders": [ { "resourceFolderDisplayName": "FOLDER_NAME", "resourceFolder": "//cloudresourcemanager.googleapis.com/folders/FOLDER_NUMBER" } ] }, "sourceProperties": { "sourceId": { "projectNumber": "PROJECT_NUMBER", "customerOrganizationNumber": "ORGANIZATION_ID" }, "detectionCategory": { "ruleName": "sensitive_action", "subRuleName": "many_instances_deleted" }, "detectionPriority": "LOW", "affectedResources": [ { "gcpResourceName": "//compute.googleapis.com/projects/PROJECT_ID/zones/ZONE/instances/VM_INSTANCE_NAME" }, { "gcpResourceName": "//cloudresourcemanager.googleapis.com/projects/PROJECT_NUMBER" } ], "evidence": [ { "sourceLogId": { "projectId": "PROJECT_ID", "resourceContainer": "projects/PROJECT_ID", "timestamp": { "seconds": "1661203265", "nanos": 669160000 }, "insertId": "INSERT_ID" } } ], "properties": {}, "findingId": "FINDING_ID", "contextUris": { "mitreUri": { "displayName": "MITRE Link", "url": "https://attack.mitre.org/techniques/T1485/" }, "cloudLoggingQueryUri": [ { "displayName": "Cloud Logging Query Link", "url": "https://console.cloud.google.com/logs/query;query=timestamp%3D%222022-08-22T21:21:05.669160Z%22%0AinsertId%3D%22INSERT_ID%22%0Aresource.labels.project_id%3D%22PROJECT_ID%22?project=PROJECT_ID" } ], "relatedFindingUri": {} } } }
永続性: 機密性の高いロールの追加
この検出結果は、プロジェクト レベルの有効化には使用できません。
{ "findings": { "access": { "principalEmail": "PRINCIPAL_EMAIL", "callerIp": "PRINCIPAL_IP_ADDRESS", "callerIpGeo": {}, "serviceName": "cloudresourcemanager.googleapis.com", "methodName": "SetIamPolicy", "principalSubject": "user:PRINCIPAL_EMAIL" }, "assetDisplayName": "organizations/ORGANIZATION_ID", "assetId": "organizations/ORGANIZATION_ID/assets/ASSET_ID", "canonicalName": "organizations/ORGANIZATION_ID/sources/SOURCE_ID/findings/FINDING_ID", "category": "Persistence: Add Sensitive Role", "contacts": { "technical": { "contacts": [ { "email": "EMAIL_ADDRESS_1" }, { "email": "EMAIL_ADDRESS_2" }, ] } }, "createTime": "2022-08-31T17:20:13.305Z", "database": {}, "eventTime": "2022-08-31T17:20:11.929Z", "exfiltration": {}, "findingClass": "OBSERVATION", "iamBindings": [ { "action": "ADD", "role": "roles/editor", "member": "user:PRINCIPAL_ACCOUNT_CHANGED" } ], "indicator": {}, "kubernetes": {}, "mitreAttack": { "primaryTactic": "PERSISTENCE", "primaryTechniques": [ "ACCOUNT_MANIPULATION" ] }, "mute": "UNDEFINED", "name": "organizations/ORGANIZATION_ID/sources/SOURCE_ID/findings/FINDING_ID", "parent": "organizations/ORGANIZATION_ID/sources/SOURCE_ID", "parentDisplayName": "Sensitive Actions Service", "resourceName": "//cloudresourcemanager.googleapis.com/organizations/ORGANIZATION_ID", "severity": "LOW", "sourceDisplayName": "Sensitive Actions Service", "state": "ACTIVE", "vulnerability": {}, "workflowState": "NEW" }, "resource": { "name": "//cloudresourcemanager.googleapis.com/organizations/ORGANIZATION_ID", "display_name": "ORGANIZATION_NAME", "project_name": "", "project_display_name": "", "parent_name": "", "parent_display_name": "", "type": "google.cloud.resourcemanager.Organization", "folders": [] }, "sourceProperties": { "sourceId": { "organizationNumber": "ORGANIZATION_ID", "customerOrganizationNumber": "ORGANIZATION_ID" }, "detectionCategory": { "ruleName": "sensitive_action", "subRuleName": "add_sensitive_role" }, "detectionPriority": "LOW", "affectedResources": [ { "gcpResourceName": "//cloudresourcemanager.googleapis.com/organizations/ORGANIZATION_ID" } ], "evidence": [ { "sourceLogId": { "resourceContainer": "organizations/ORGANIZATION_ID", "timestamp": { "seconds": "1661966410", "nanos": 132148000 }, "insertId": "INSERT_ID" } } ], "properties": {}, "findingId": "FINDING_ID", "contextUris": { "mitreUri": { "displayName": "MITRE Link", "url": "https://attack.mitre.org/techniques/T1098/" }, "cloudLoggingQueryUri": [ { "displayName": "Cloud Logging Query Link", "url": "https://console.cloud.google.com/logs/query;query=timestamp%3D%222022-08-31T17:20:10.132148Z%22%0AinsertId%3D%22INSERT_ID%22%0Aresource.labels.project_id%3D%22%22?project=" } ], "relatedFindingUri": {} } } }
永続性: プロジェクトの SSH 認証鍵の追加
{ "findings": { "access": { "principalEmail": "PRINCIPAL_EMAIL", "callerIp": "PRINCIPAL_IP_ADDRESS", "callerIpGeo": { "regionCode": "US" }, "serviceName": "compute.googleapis.com", "methodName": "v1.compute.projects.setCommonInstanceMetadata", "principalSubject": "user:USER_EMAIL" }, "canonicalName": "projects/PROJECT_NUMBER/sources/SENSITIVE_ACTIONS_INSTANCE_NUMBER/findings/FINDING_ID", "category": "Persistence: Project SSH Key Added", "contacts": { "technical": { "contacts": [ { "email": "EMAIL_ADDRESS_1" }, { "email": "EMAIL_ADDRESS_2" }, ] } }, "createTime": "2022-08-25T13:24:43.142Z", "database": {}, "eventTime": "2022-08-25T13:24:42.719Z", "exfiltration": {}, "findingClass": "OBSERVATION", "findingProviderId": "organizations/ORGANIZATION_ID/firstPartyFindingProviders/sensitive_actions", "indicator": {}, "kubernetes": {}, "mitreAttack": { "primaryTactic": "PERSISTENCE", "primaryTechniques": [ "ACCOUNT_MANIPULATION", "SSH_AUTHORIZED_KEYS" ] }, "mute": "UNDEFINED", "name": "organizations/ORGANIZATION_ID/sources/SENSITIVE_ACTIONS_INSTANCE_NUMBER/findings/FINDING_ID", "parent": "organizations/ORGANIZATION_ID/sources/SENSITIVE_ACTIONS_INSTANCE_NUMBER", "parentDisplayName": "Sensitive Actions", "resourceName": "//compute.googleapis.com/projects/PROJECT_ID", "severity": "LOW", "sourceDisplayName": "Sensitive Actions", "state": "ACTIVE", "vulnerability": {}, "workflowState": "NEW" }, "resource": { "name": "//compute.googleapis.com/projects/PROJECT_ID", "display_name": "PROJECT_ID", "project_name": "//cloudresourcemanager.googleapis.com/projects/PROJECT_NUMBER", "project_display_name": "PROJECT_ID", "parent_name": "//cloudresourcemanager.googleapis.com/projects/PROJECT_NUMBER", "parent_display_name": "PROJECT_ID", "type": "google.compute.Project", "folders": [ { "resourceFolderDisplayName": "FOLDER_NAME", "resourceFolder": "//cloudresourcemanager.googleapis.com/folders/FOLDER_NUMBER" } ] }, "sourceProperties": { "sourceId": { "projectNumber": "PROJECT_NUMBER", "customerOrganizationNumber": "ORGANIZATION_ID" }, "detectionCategory": { "ruleName": "sensitive_action", "subRuleName": "add_ssh_key" }, "detectionPriority": "LOW", "affectedResources": [ { "gcpResourceName": "//compute.googleapis.com/projects/PROJECT_ID" }, { "gcpResourceName": "//cloudresourcemanager.googleapis.com/projects/PROJECT_NUMBER" } ], "evidence": [ { "sourceLogId": { "projectId": "PROJECT_ID", "resourceContainer": "projects/PROJECT_ID", "timestamp": { "seconds": "1661433879", "nanos": 413362000 }, "insertId": "INSERT_ID" } } ], "properties": {}, "findingId": "FINDING_ID", "contextUris": { "mitreUri": { "displayName": "MITRE Link", "url": "https://attack.mitre.org/techniques/T1098/004/" }, "cloudLoggingQueryUri": [ { "displayName": "Cloud Logging Query Link", "url": "https://console.cloud.google.com/logs/query;query=timestamp%3D%222022-08-25T13:24:39.413362Z%22%0AinsertId%3D%22INSERT_ID%22%0Aresource.labels.project_id%3D%22PROJECT_ID%22?project=PROJECT_ID" } ], "relatedFindingUri": {} } } }
次のステップ
- Sensitive Actions Service の仕組みを学習する。
- 脅威に対する対応計画の調査と開発の方法を学習する。