Audit Logs

Scanner supports Cloudflare Audit logs, which contain information about changes made within your Cloudflare account. In order for Scanner to see these logs, you can configure Cloudflare to publish them to S3.

Step 1: Configure Logpush to write to S3

You can follow the Cloudflare documentation to configure Cloudflare to write Audit logs to S3. See: Enable Amazon S3.

Make sure the time field is exported

You must make sure the When field is included in the export of Audit logs. Otherwise, Scanner will not be able to determine the time when the log event occurred and will fall back to ingestion time, which might be incorrect.

Step 2: Link the S3 bucket to Scanner

If you haven't done so already, link the S3 bucket containing your Cloudflare Audit logs to Scanner using the Linking AWS Accounts guide.

Step 3: Set up an S3 Import Rule in Scanner

  1. Within Scanner, navigate to Settings > S3 Import Rules.

  2. Click Create Rule.

  3. For Rule name, type a name like my_team_name_cloudflare_audit_logs.

  4. For Destination Index, choose the index where you want these logs to be searchable in Scanner.

  5. For Status, set to Active if you want to start indexing the data immediately.

  6. For Source Type, we recommend cloudflare:audit_logs, but you are free to choose any name. However, out-of-the-box detection rules will expect cloudflare:audit_logs.

  7. For AWS Account, choose the account that contains the S3 bucket containing the Cloudflare Audit logs.

  8. For S3 Bucket, choose the S3 bucket containing the Cloudflare Audit logs.

  9. For S3 Key Prefix, type the prefix (i.e. directory path) where Cloudflare is writing Audit logs. This will be the path you configured in Cloudflare but with /audit_logs/ appended to the end.

    1. For example, if you configured Cloudflare to write logs to the S3 path my_team/my_cloudflare_logs/, then the S3 Key Prefix in your S3 Import Rule in Scanner should be my_team/my_cloudflare_logs/audit_logs/.

  10. For File type, choose JsonLines with Gzip compression.

  11. For Timestamp extractors, under Column name, type When. This is the field in each log event that contains the timestamp information.

  12. Click Preview rule to try it out. Check that the S3 keys you expect are appearing, and check that the log events inside are being parsed properly with the timestamp detected properly.

  13. When you're ready, click Create.

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