Dampak: Kebijakan penghapusan Backup and DR Google Cloud

Dokumen ini menjelaskan jenis temuan ancaman di Security Command Center. Temuan ancaman dibuat oleh detektor ancaman saat mendeteksi potensi ancaman di resource cloud Anda. Untuk daftar lengkap temuan ancaman yang tersedia, lihat Indeks temuan ancaman.

Ringkasan

Log audit diperiksa untuk mendeteksi penghapusan kebijakan. Kebijakan menentukan cara pencadangan dilakukan dan tempat penyimpanan cadangan.

Event Threat Detection adalah sumber temuan ini.

Cara merespons

Untuk merespons temuan ini, lakukan hal berikut:

Langkah 1: Tinjau detail temuan

  1. Buka temuan Impact: Google Cloud Backup and DR delete policy, seperti yang dijelaskan dalam Meninjau temuan. Panel detail untuk temuan akan terbuka di tab Ringkasan.
  2. Di tab Ringkasan, tinjau informasi di bagian berikut:
    • Apa yang terdeteksi, terutama kolom berikut:
      • Nama kebijakan: nama untuk satu kebijakan, yang menentukan frekuensi pencadangan, jadwal, dan waktu retensi
      • Principal subject: pengguna yang berhasil menjalankan tindakan
    • Affected resource
      • Nama tampilan resource: project tempat kebijakan dihapus
    • Link Related, terutama kolom berikut:
      • Metode MITRE ATTACK: tautan ke dokumentasi MITRE ATT&CK
      • Logging URI: link untuk membuka Logs Explorer.

Langkah 2: Teliti metode serangan dan respons

Hubungi pemilik akun layanan di kolom Principal email. Konfirmasi apakah pemilik sah melakukan tindakan tersebut.

Langkah 3: Terapkan respons Anda

  1. Di project tempat tindakan dilakukan, buka konsol pengelolaan.
  2. Di tab App Manager, pilih aplikasi yang terpengaruh dan tinjau setelan Policy yang diterapkan ke aplikasi tersebut.

Contoh JSON temuan

Berikut adalah contoh JSON temuan.

{
  "finding": {
    "access": {
      "principalEmail": "USER_EMAIL",
      "callerIp": "CALLER_IP",
      "callerIpGeo": {
        "regionCode": "REGION_CODE"
      },
      "serviceName": "backupdr.googleapis.com",
      "methodName": "deletePolicy",
      "principalSubject": "user:USER_EMAIL"
    },
    "attackExposure": {},
    "backupDisasterRecovery": {
      "policies": [
        "DeleteMe"
      ],
      "backupCreateTime": "EVENT_TIMESTAMP"
    },
    "canonicalName": "projects/PROJECT_NUMBER/sources/SOURCE_ID/locations/FINDING_LOCATION/findings/FINDING_ID",
    "category": "Impact: Google Cloud Backup and DR delete policy",
    "cloudDlpDataProfile": {},
    "cloudDlpInspection": {},
    "createTime": "EVENT_TIMESTAMP",
    "database": {},
    "description": "A Google Cloud Backup and DR Service policy, which defines how a backup is taken and where it is stored, was deleted. Future backups that use the policy might fail.",
    "eventTime": "EVENT_TIMESTAMP",
    "exfiltration": {},
    "findingClass": "THREAT",
    "findingProviderId": "organizations/ORGANIZATION_ID/firstPartyFindingProviders/etd",
    "indicator": {},
    "kernelRootkit": {},
    "kubernetes": {},
    "mitreAttack": {
      "primaryTactic": "IMPACT",
      "primaryTechniques": [
        "INHIBIT_SYSTEM_RECOVERY"
      ]
    },
    "mute": "UNDEFINED",
    "name": "organizations/ORGANIZATION_ID/sources/SOURCE_ID/findings/FINDING_ID",
    "parent": "organizations/ORGANIZATION_ID/sources/SOURCE_ID",
    "parentDisplayName": "Event Threat Detection",
    "resourceName": "//cloudresourcemanager.googleapis.com/projects/PROJECT_NUMBER",
    "severity": "LOW",
    "state": "ACTIVE",
    "vulnerability": {},
    "externalSystems": {}
  },
  "resource": {
    "name": "//cloudresourcemanager.googleapis.com/projects/PROJECT_NUMBER",
    "display_name": "PROJECT_ID",
    "type": "google.cloud.resourcemanager.Project",
    "project_name": "//cloudresourcemanager.googleapis.com/projects/PROJECT_NUMBER",
    "project_display_name": "PROJECT_ID",
    "parent_name": "//cloudresourcemanager.googleapis.com/organizations/ORGANIZATION_ID",
    "parent_display_name": "FOLDER_NAME",
    "folders": []
  },
  "sourceProperties": {
    "sourceId": {
      "projectNumber": "PROJECT_NUMBER",
      "customerOrganizationNumber": "ORGANIZATION_ID"
    },
    "detectionCategory": {
      "ruleName": "backup_template_delete_policy"
    },
    "detectionPriority": "LOW",
    "affectedResources": [
      {
        "gcpResourceName": "//backupdr.googleapis.com/projects/PROJECT_NUMBER"
      },
      {
        "gcpResourceName": "//cloudresourcemanager.googleapis.com/projects/PROJECT_NUMBER"
      }
    ],
    "evidence": [
      {
        "sourceLogId": {
          "projectId": "PROJECT_ID",
          "resourceContainer": "projects/PROJECT_ID",
          "timestamp": {
            "seconds": "0",
            "nanos": 0.0
          },
          "insertId": "INSERT_ID"
        }
      }
    ],
    "properties": {},
    "findingId": "FINDING_ID",
    "contextUris": {
      "mitreUri": {
        "displayName": "MITRE Link",
        "url": "https://attack.mitre.org/techniques/T1490/"
      },
      "cloudLoggingQueryUri": [
        {
          "displayName": "Cloud Logging Query Link",
          "url": "LINK_TO_LOG_QUERY"
        }
      ],
      "relatedFindingUri": {}
    },
    "description": "A Google Cloud Backup and DR Service policy, which defines how a backup is taken and where it is stored, was deleted. Future backups that use the policy might fail.",
    "backupDisasterRecovery": {
      "policies": [
        "POLICY_NAME"
      ]
    }
  }
}

Langkah berikutnya