Microsoft DNS

This pack includes XSIAM content.

Configuration on Server Side for Filebeat

1. Open the RUN window and enter: dnsmgmt.msc

2. Right-click the name of the DNS server in the left-hand panel and select Properties.

3. In the Debug logging tab, add a check in Log packets for debugging

4. Ensure the following are checked: Outgoing, Incoming, Queries/Transfers, Updates.

5. For long (detailed) logs, select Details and enter the log file path: c:\Windows\System32\dns\DNS.log

   Note: Detailed captures will heavily bloat the logs.

Filebeat Collection

For the Filebeat collector, use the following option to collect events from the vendor:

• XDRC (XDR Collector)

You will need to configure the vendor and product for this specific collector.

XDRC (XDR Collector)

Use the information described here.

You can configure the vendor and product by replacing [vendor]_[product]_raw with microsoft_dns_raw.

When configuring the instance, you should use a yml file that configures the vendor and product, as shown in the below configuration for the Microsoft DNS product.

Pay Attention:

• There are two integrations available in this content pack.

• Timestamp log ingestion is supported in either of the following formats in UTC (00:00) time.

  • %m/%d/%Y %I:%M:%S %p
  • %d/%m/%Y %H:%M:%S

• As enrichment, forwarding DNS Audit logs is supported via Winlogbeat

• Via Filebeat for DNS Debug logs.

• Via Winlogbeat for DNS Audit logs.

Follow these steps in order to configure the XDR Collector:

1. The implementation of the Collector for both of the methods requires to create a Profile for each integration.
   • For XSIAM version 1.2 only, in the relevant profile under the XDR Collectors Profiles, copy and paste the information from the Filebeat Configuration File section.
2. Create a Policy and allocate the profiles you created to it.

Filebeat Configuration File

filebeat.inputs:
- type: filestream
  enabled: true
  paths:
    -  c:\Windows\System32\dns\DNS.log
  processors:
    - add_fields:
        fields: 
          vendor: "microsoft"
          product: "dns"

Note: The above configuration uses the default location of the logs.

Winlogbeat Configuration File

winlogbeat.event_logs: 
  - name: Microsoft-Windows-DNSServer/Audit
    processors: 
      - add_fields: 
          fields: 
            vendor: microsoft
            product: dns
    id: dns-audit-logs

For XSIAM version 1.3 and above, use the built-in YAML template provided within the XDR collector configuration.