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AlienVault® USM Anywhere™

Microsoft Windows DNS Server

When you configure Microsoft Windows DNS Server to send logs through NXLog to USM Anywhere, you can use the Windows DNS Server plugin to translate the raw log data into normalized events for analysis.

Device Details
Device vendor Microsoft
Device type Server
Connection type Syslog
Vendor link https://www.microsoft.com/en-US/download/details.aspx?id=53314

Integrating Microsoft DNS Server and NXLog

Before you configure Microsoft Windows DNS Server to send logs to USM Anywhere through NXLog, you need to enable debug logging on the DNS server.

Configure DNS Server Debug Logging

To enable DNS server debug logging

  1. From the Windows Start Menu, select All Programs > Administrative Tools > DNS.
  2. From the console tree, right-click the applicable DNS server, and then click Properties.
  3. Click the Debug Logging tab.

    Windows DNS Server Debug Logging

  4. Select Log packets for debugging.

    The most useful debug logging output comes from selecting at least three options:

    • One option under Packet direction
    • One option under Transport protocol
    • At least one more option in another category
  5. (Optional) In addition to selecting events for the DNS debug log file, you can specify the file name, location, and a maximum file size for the file. However, in most cases, the default selections are adequate.
  6. (Optional) Consider limiting the traffic captured by applying filters:

    1. Select Filter packets by IP address.
    2. Add the appropriate IP addresses by clicking Filter.

    Warning: Do not select the Details option, because it produces logs in multi-line format instead of single-line, which the USM Anywhere plugins cannot process.

Configure NXLog

Before you configure the integration, you must have the IP Address of the USM AnywhereUSM Appliance Sensor.

To configure NXLog to send log data to USM Anywhere

Plugin Enablement

The Windows DNS Server plugin will automatically process all messages when the raw message contains "SourceName":"DNS".

Available Plugin Fields

The following plugin fields are important attributes extracted from the syslog message. USM Anywhere reports use these fields, and you can also reference them when creating custom reports. In addition to reporting, the USM Anywhere correlation rules make use of these fields.

  • customfield_0 - Header

  • customfield_1 - Return Code

  • customfield_2 - Return Code Description

  • customfield_3 - Resource Type ID

  • customfield_4 - Resource Type Description

  • customheader_0

  • customheader_1

  • customheader_2

  • customheader_3

  • customheader_4

  • destination_address

  • dns_rrname

  • dns_rrtype

  • dns_type

  • event_name

  • plugin_device

  • source_address

  • source_process

  • transport_protocol

Troubleshooting

For troubleshooting, refer to the vendor documentation:

https://technet.microsoft.com/en-us/library/cc731991(v=ws.11).aspx