Impact: Google Cloud Backup and DR reduced backup expiration

This document describes a threat finding type in Security Command Center. Threat findings are generated by threat detectors when they detect a potential threat in your cloud resources. For a full list of available threat findings, see Threat findings index.

Finding description

Event Threat Detection examines audit logs to detect whether the expiration date for a backup on a Backup and DR Service appliance has been reduced.

To respond to this finding, do the following:

Step 1: Review finding details

  1. Open the Impact: Google Cloud Backup and DR reduced backup expiration finding, as detailed in Reviewing findings. The details panel for the finding opens to the Summary tab.
  2. On the Summary tab, review the information in the following sections:
    • What was detected, especially the following fields:
      • Description: information about the detection
      • Principal subject: a user or service account that has successfully executed an action
    • Affected resource
      • Resource display name: the project in which the backup's expiration was reduced.
    • Related links, especially the following fields:
      • MITRE ATTACK method: link to the MITRE ATT&CK documentation.
      • Logging URI: link to open the Logs Explorer.

Step 2: Research attack and response methods

Contact the owner of the service account in the Principal subject field. Confirm whether the legitimate owner conducted the action.

Step 3: Implement your response

The following response plan might be appropriate for this finding. Carefully evaluate the information you gather in your investigation to determine the best way to resolve findings.

  1. In the project where the action was taken, navigate to the management console.
  2. In the App Manager tab, find the affected application for which backup expiration was reduced and verify that the expiration was intended by the principal.
  3. To initiate a new backup of the application, select Manage Backup Configurations to create an on-demand backup or to schedule a new backup.

What's next