Dampak: Host Backup and DR Google Cloud dihapus

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

Ringkasan

Event Threat Detection memeriksa log audit untuk mendeteksi penghapusan host yang menjalankan aplikasi yang dilindungi oleh Layanan Backup dan DR. Setelah host dihapus, aplikasi yang terkait dengan host tidak dapat dicadangkan.

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: Deleted Google Cloud Backup and DR host, seperti yang dijelaskan dalam Meninjau temuan. Panel detail untuk temuan akan terbuka di tab Summary.
  2. Di tab Summary, tinjau informasi di bagian berikut:
    • Apa yang terdeteksi, terutama kolom berikut:
      • Nama aplikasi: nama database atau VM yang terhubung ke Backup dan DR
      • Nama host: nama host yang terhubung ke Backup dan DR
      • Principal subject: pengguna yang berhasil menjalankan tindakan
    • Affected resource
      • Nama tampilan resource: project tempat host dihapus
    • Related links, 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

Rencana respons berikut mungkin sesuai untuk temuan ini, tetapi juga dapat memengaruhi operasi. Evaluasi dengan cermat informasi yang Anda kumpulkan dalam penyelidikan untuk menentukan cara terbaik dalam menyelesaikan temuan.

  1. Di project tempat tindakan dilakukan, buka konsol pengelolaan.
  2. Pastikan host yang dihapus tidak lagi ada dalam daftar host Backup dan DR.
  3. Pilih opsi Add Host untuk menambahkan kembali host yang dihapus.

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": "deleteHost",
      "principalSubject": "user:USER_EMAIL"
    },
    "attackExposure": {},
    "backupDisasterRecovery": {
      "host": "HOST_NAME",
      "applications": [
        "HOST_NAME"
      ],
      "backupCreateTime": "EVENT_TIMESTAMP"
    },
    "canonicalName": "projects/PROJECT_NUMBER/sources/SOURCE_ID/locations/FINDING_LOCATION/findings/FINDING_ID",
    "category": "Impact: Deleted Google Cloud Backup and DR host",
    "cloudDlpDataProfile": {},
    "cloudDlpInspection": {},
    "createTime": "EVENT_TIMESTAMP",
    "database": {},
    "description": "A host was deleted from the Google Cloud Backup and DR Service. Applications that are associated with the deleted host might not be protected.",
    "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": "MEDIUM",
    "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_hosts_delete_host"
    },
    "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 host was deleted from the Google Cloud Backup and DR Service. Applications that are associated with the deleted host might not be protected.",
    "backupDisasterRecovery": {
      "host": "HOST_NAME",
      "applications": [
        "HOST_NAME"
      ]
    }
  }
}

Langkah berikutnya