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View and analyze risk score data

Serverless Security Stack

The Elastic Security app provides several ways to monitor the change in the risk posture of entities in your environment.

Tip

After reviewing an entity’s risk score, the recommended next step is to investigate the risky entity in Timeline.

In the Entity Analytics overview, you can view entity key performance indicators (KPIs), risk scores, and levels. You can also click the number link in the Alerts column to investigate and analyze the alerts on the Alerts page.

If you have enabled the entity store, you'll also get access to the Entities section, where you can view all hosts, users, and services along with their risk and asset criticality data.

Access the Entity Analytics overview from the following pages:

You can prioritize alert triaging to analyze alerts associated with risky or business-critical entities using the following features in the Elastic Security app.

Alerts page

Use the Alerts table to investigate and analyze:

  • Host, user, and service risk levels
  • Host, user, and service risk scores
  • Asset criticality

To display entity risk score and asset criticality data in the Alerts table, select Fields, and add the following:

  • user.risk.calculated_level, host.risk.calculated_level, or service.risk.calculated_level
  • user.risk.calculated_score_norm, host.risk.calculated_score_norm, or service.risk.calculated_score_norm
  • user.asset.criticality, host.asset.criticality, or service.asset.criticality

Learn more about customizing the Alerts table.

Risk scores in the Alerts table

To analyze alerts associated with high-risk or business-critical entities, you can filter or group them by entity risk level or asset criticality level.

Note

If you change the entity’s criticality level after an alert is generated, that alert document will include the original criticality level and will not reflect the new criticality level.

  • Use the drop-down filter controls to filter alerts by entity risk level or asset criticality level. To do this, edit the default controls to filter by:

    • user.risk.calculated_level, host.risk.calculated_level, or service.risk.calculated_level for entity risk level:

      Alerts filtered by high host risk level

    • user.asset.criticality, host.asset.criticality, or service.asset.criticality for asset criticality level:

      Filter alerts by asset criticality level

  • To group alerts by entity risk level or asset criticality level, select Group alerts by, then select Custom field and search for:

    • host.risk.calculated_level, user.risk.calculated_level, or service.risk.calculated_level for entity risk level:

      Alerts grouped by host risk levels

    • host.asset.criticality, user.asset.criticality, or service.asset.criticality for asset criticality level:

      Alerts grouped by entity asset criticality levels

    • You can further sort the grouped alerts by highest entity risk score:

      1. Expand a risk level group (for example, High) or an asset criticality group (for example, high_impact).

      2. Select Sort fields → Pick fields to sort by.

      3. Select fields in the following order:

        1. host.risk.calculated_score_norm, user.risk.calculated_score_norm or service.risk.calculated_score_norm: High-Low
        2. Risk score: High-Low
        3. @timestamp: New-Old
      High-risk alerts sorted by host risk score

To access risk score data in the alert details flyout, select Insights → Entities on the Overview tab:

Risk scores in the Alerts flyout

On the Hosts and Users pages, you can access the risk score data:

  • In the Host risk level or User risk level column on the All hosts or All users tab:

    Host risk level data on the All hosts tab of the Hosts page

  • On the Host risk or User risk tab:

    Host risk data on the Host risk tab of the Hosts page

On the host details and user details pages, you can access the risk score data:

  • In the Overview section:

    Host risk data in the Overview section of the host details page

  • On the Host risk or User risk tab:

    Host risk data on the Host risk tab of the host details page

In the entity details flyouts, you can access the risk score data in the risk summary section:

Host risk data in the Host risk summary section

Serverless Stack Planned

The entity store allows you to analyze how entity attributes change over time, making it easier to investigate past activity, track trends, and identify unusual behavior or changes that may indicate risk. Use time-based queries in Discover to answer questions such as:

  • What did user A’s attributes look like on March 15?
  • How has user B's risk score changed over the last 90 days?
  • Which user had the biggest jump in their risk score since yesterday?

By analyzing current and past entity data, you can understand how your environment and its entities evolve over time.

Note

If you enabled the entity store before upgrading to 9.2, you'll need to re-start it using the On/Off toggle to access the historical analysis feature.