Mimecast Web Security: Configuring a Targeted Threat Protection Policy

Document created by user.oxriBaJeN4 Employee on Apr 24, 2019Last modified by user.oxriBaJeN4 Employee on May 17, 2019
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This guide describes how to utilize the managed URLs and advanced similarity checks in the URL Protection product in Mimecast Web Security by configuring a policy. This policy type is only visible if the URL Protection package is enabled for your account. If your managed URLs list contains both URLs and domains and you wish to filter both, you must have an Advanced Security policy with the Web Proxy option enabled for those targets. 

See the URL Protection Definitions and Policies page for more information on managed URLs.

To configure a targeted threat protection policy:

  1. Log on to the Administration Console.

  2. Click on the Administration menu item.

  3. Select the Web Security | Policies menu item. A list of policies is displayed.

  4. Click on the Create New Policy button.

  5. Select the Targeted Threat Protection option.
  6. Click on the Next button.
  7. If required, enable the Managed URLs option.
    Click on the Managed URLs link to view your managed URLs and domains.
  8. Click on the Next button.
  9. TTP Policy Advanced Similarity ChecksIf required, configure the advanced similarity checks used to detect the use of special characters that look like other characters in the domain.
    This checks DNS requests against both Mimecast’s managed domain lists, and your custom monitored internal and external domains.
    1. Click on the Custom Monitored External Domains link to view your custom external domain list. See the Targeted Threat Protection: Custom Monitored External Domains page for further information.
    2. Select from one of the following Action options:
      • Block: Blocks the user from accessing the link and displays a block page.
      • Warn: Displays a warning page to the user, allowing them to access the link if they choose.
  10. Click on the Next button.
  11. Select who the policy applies to:
    You can add multiple locations, users, and groups to a single policy, making it easier to configure and manage your Web Security policies.
    • Everyone: The policy applies to all users in your organization.
    • Location: The policy applies to all users defined in a location. See the Mimecast Web Security: Configuring Locations page for further details.
      1. Click on the Select Location button.
      2. Select a Location from the list, or use the search tool to find one.
    • Group: The policy applies to a group of users.
      1. Click on the Select Group button.
      2. Select a group from the Active Directory Groups or Local Groups tab.
    • User: The policy applies to an individual user:
      1. Click on the Select User button.
      2. Select the Userfrom the list displayed, or use the search tool to find them.
  12. Click on the Next button.
  13. Review the Summary displayed to ensure all details are correct.
  14. Click on the Create Policy button. The new policy is displayed.


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