--- title: "Expert Rule Properties page" slug: "expert-rule-properties-page" tags: ["Reference", "ENS 10.7.x"] updated: 2026-10-06T19:45:35Z published: 2026-10-06T19:45:35Z canonical: "docs.trellix.com/expert-rule-properties-page" --- > ## Documentation Index > Fetch the complete documentation index at: https://docs.trellix.com/llms.txt > Use this file to discover all available pages before exploring further. # Expert Rule Properties page Create an Expert Rule. | **Section** | Option | Definition | | --- | --- | --- | | **Rules** | **Signature ID** | Indicates the assigned ID number for the signature. | | **Rule name** | Specifies or indicates the name of the rule. | | | **Severity** | Specifies the severity level for the rule. - **Informational** - **Low** - **Medium** - **High** | | | **Action** | Specifies the action for the rule. - **Block** — Blocks behavior that matches the signature without logging. - **Report** — Logs behavior that matches the signature without blocking. To disable the signature, deselect **Block** and **Report**. | | | **Rule type** | Specifies the rule type and, if **Use Expert Rule template** is enabled, adds the appropriate template to the **Rule content** pane. Select the rule type from the drop-down list. - **Buffer Overflow** - **Files** - **Illegal API Use** - **Processes** - **Registry key** - **Registry value** - **Services** You can't create Network IPS Expert Rules. | | | **Use Expert Rule template** | Specifies to populate the **Rule content** field with a template for the selected **Rule type**. (Enabled by default) Deselect this option to select a new type from the **Rule type** drop-down list. | | | **Rule content** | Specifies the content of the rule. Change the code to specify objects to protect or exclude. | | | **Notes** | Provides more information about the item. |