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AlienVault® USM Anywhere™

Microsoft IIS Server on AWS

When you configure Microsoft IIS (Internet Information Services) Server on AWS integration to send log data to the USM Anywhere AWS sensor, you can use the plugin to translate the raw log data into normalized events for analysis.

Device Details
Device vendor Microsoft
Device type Web server
Connection type CloudWatch
Vendor link

https://www.iis.net/learn

Integrating Microsoft IIS Server

Two versions of this plugin are available, depending on the version of the IIS.

  • Microsoft IIS (pre 8.0) Plugin
  • Microsoft IIS 8.0+ Plugin

To configure Microsoft IIS on AWS to send log data through CloudWatch

  1. Follow the instructions on the AWS web site to install the CloudWatch Agent on your host.

    Note: If you choose to enable CloudWatch in your AWS environment, you should make sure that you are not collecting more data than you need because this service incurs AWS costs based upon usage. Refer to the pricing information to plan and configure your usage.

  2. Configure the agent to send IIS logs to the group IIS-Logs.

    Important: USM Anywhere expects all the log streams in a group to be the same content type (use the same plugin), in this case, Microsoft IIS 8.0+ plugin or Microsoft IIS (pre-8.0) plugin.

  3. In the USM Anywhere web UI, go to Settings > Scheduler and enable CloudWatch - IIS Logs.

    This enables USM Anywhere to find the logs automatically without your needing to create a scheduled job.

    Important: Only the Microsoft II 8.0+ plugin allows USM Anywhere to match the logs automatically. For this reason, if you need to use the Microsoft II (pre-8.0) plugin, you must schedule a job manually. For instructions, see Creating a New CloudWatch Collection Job.

    Enable the default CloudWatch - IIS Logs job in the Scheduler

  4. Wait for events to appear in the Events page.

Plugin Enablement

For plugin enablement information, see Manual Plugin Management.

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.

  • destination_address

  • destination_port

  • event_description

  • event_name

  • highlight_fields

  • plugin_device

  • plugin_device_version

  • request_method

  • request_url

  • request_user_agent

  • response_code

  • source_address

  • source_username

Troubleshooting

For troubleshooting, refer to the vendor documentation:

https://www.iis.net/learn/troubleshoot