Manage Existing Indicators - Administrator Guide - Cortex XDR - Cortex XSIAM - Cortex

Manage Existing Indicators - Administrator Guide - Cortex XDR - Cortex XSIAM - Cortex - Security Operations

Cortex XDR Pro Administrator Guide

Product

Cortex XDR

License

Pro

Creation date

2023-05-22

Last date published

2023-05-22

Note

For Analytics BIOC rules, you can only disable and enable rules.

View Alerts Triggered by a Rule

As your IOC and BIOC rules trigger alerts, Cortex XDR displays the total # OF HITS for the rule in the the BIOC or IOC rules page. For rules with a high, medium, or low severity that have raised one or more alerts, you can quickly pivot to a filtered view of those alerts raised by the indicator:

Select Detection & Threat Intel → Detection Rules and the type of rule (BIOC or IOC).
Right-click anywhere in a rule, and then select View associated alerts.
You can see a filtered query of alerts associated with the Rule ID.

Use a BIOC Rule as the Basis of a Query

Select Detection & Threat Intel → Detection Rules and the type of rule (BIOC or IOC).
Right-click anywhere in the rule, and then select Open in query builder.
populates a query using the criteria of the BIOC rule.
If desired, add or change the query criteria.
(Optional) Test your query to see the sample results.
If you are satisfied with query, Save the query.
For more information, see Manage Your Queries.

Edit a Rule

After you create a rule, it may be necessary to tweak or change the rule settings. You can open the rule configuration from the Rules page or from the pivot menu of an alert triggered by the rule. To edit the rule from the Rules page:

Select Detection & Threat Intel → Detection Rules and the type of rule (BIOC or IOC).
Locate the rule you want to edit.
Right-click anywhere in the rule and select Edit.
Edit the rule settings as needed, and then click OK.
If you make any changes, Test and then Save the rule.

Export a Rule (BIOC Only)

Select Detection & Threat Intel → Detection Rules → BIOC.
Select the rules that you want to export.
Right-click any of the rows, and select Export selected.
The exported file is not editable, however, you can use it as a source to import rules at a later date.

Copy a BIOC Rule

You can use an existing rule as a template to create a new one. Global BIOC rules cannot be deleted or altered, but you can copy a global rule and edit the copy.

From Cortex XDR, select Detection & Threat Intel → Detection Rules and then BIOC.
Locate the rule you want to copy.
Right-click anywhere in the rule row and then select Save as New to create a duplicate rule.

Disable or Remove a Rule

If you no longer need a rule you can temporarily disable or permanently remove it.

Note

You cannot delete global BIOCs delivered with content updates.

Select Detection & Threat Intel → Detection Rules and the type of rule (BIOC or IOC).
Locate the rule that you want to change.
Right-click anywhere in the rule row and then select Remove to permanently delete the rule, or Disable to temporarily stop the rule. If you disable a rule you can later return to the rule page to Enable it.