Policies and actions 编辑

You can create policies on Citrix Analytics to help you perform actions on user accounts when unusual or suspicious activities occur. Policies let you automate the process of applying actions such as disable a user, add users to a watchlist. When you enable policies, a corresponding action is applied immediately after an anomalous event occurs and the policy condition is met. You can also manually apply actions on user accounts with anomalous activities.

What are the policies?

A policy is a set of conditions that must be met to apply an action. A policy contains one or more conditions and a single action. You can create a policy with multiple conditions and one action that can be applied to a user’s account.

Risk score is a global condition. Global conditions can be applied to a specific user for a specific data source. You can keep a watch on user accounts that show any unusual activities. Other conditions are specific to data sources and their risk indicators. The conditions contain combinations of risk scores, default risk indicators, and custom risk indicators. You can add up to 4 conditions when creating a policy.

For example, if your organization uses sensitive data, you might want to restrict the amount of data shared or accessed by users internally. But if you have a large organization, it wouldn’t be feasible for a single administrator to manage and monitor many users. You can create a policy wherein, anyone who shares sensitive data excessively can be added to a watchlist or have their account disabled immediately.

Default policies

Default policies are predefined and enabled on the Policies dashboard. They are created based on pre-defined conditions and a corresponding action is assigned to every default policy. You can either use a default policy or modify it based on your requirements.

Citrix Analytics supports the following default policies:

• Successful credentials exploit
• Potential data exfiltration
• Unusual access from a suspicious IP
• First time access from device
• Virtual Apps and Desktops and Citrix DaaS- Impossible travel on access
• Gateway - Impossible travel on authentication
• Content Collaboration - Impossible travel

For information about the preset conditions and actions regarding the preceding default policies, see Continuous risk assessment.

For information about the pre-defined policy for the geofencing use case, see Preconfigured policy.

How to add or remove conditions?

To add more conditions, select Add condition in the IF THE FOLLOWING CONDITION IS MET section of the Create Policy page. To remove a condition, select the - icon that is displayed next to the condition.

Default and custom risk indicators

The conditions menu is segregated based on Default Risk Indicators and Custom Risk Indicators tabs on the Create Policy page. Using these tabs, you can easily identify the type of risk indicator that you want to choose when selecting a condition for policy configuration.

What are the actions?

Actions are responses to suspicious events that prevent future anomalous events from occurring. You can apply actions on user accounts that display unusual or suspicious behavior. You can either configure policies to apply action on the user’s account automatically or apply a specific action manually from the user’s risk timeline.

You can view global actions or actions for each Citrix data source. You can also disable previously applied actions for a user at any time.

Note

Irrespective of the data source that triggers a risk indicator, actions pertaining to other data sources can be applied.

The following table describes the actions that you can take.

Notes

• You can apply any action to a risk indicator irrespective of the data sources.

• If you apply the Disable user action for a Content Collaboration user, the user’s account is not disabled until the Content Collaboration administrator sees the notification. During the interim period, the user can use their Content Collaboration account and the data continue to be processed by Citrix Analytics. After the Content Collaboration administrator disables the user’s account, the user must contact their Content Collaboration administrator to have their account reactivated. The Citrix Analytics administrator cannot enable the Content Collaboration accounts that are disabled.

• For on-premises Citrix Virtual Apps and Desktops, you must download an agent from Citrix Analytics and install it on the Delivery Controller to perform the Log Off User and the Start Session Recording actions. For more information on the agent, see Enable Analytics on Virtual Apps and Desktops Sites.
• Administrators can now run dynamic session recording actions on Citrix DaaS sites and dynamically record users’ virtual sessions.

View-only sharing

Before applying the Change links to view-only sharing action on a user’s account, ensure that the following conditions are met:

Prerequisites

• The administrator must have an Enterprise account in Content Collaboration to use the Change links to view-only sharing action.

• The View-Only Sharing is a feature available on a request in the Enterprise accounts of Citrix Content Collaboration. Before applying the Change links to view-only sharing action in Citrix Analytics, ensure that the View-Only Sharing feature is already enabled in the Content Collaboration Enterprise accounts of the user and the administrator. For more information, see the Citrix support article- CTX208601.

Supported file types

The view-only sharing action applies only on the following file types:

• Microsoft Office files

• PDF

• Image files (requires SZC v3.4.1 or later):

  • BMP

  • GIF

  • JPG

  • JPEG

  • PNG

  • TIF

  • TIFF

• Audio and video files stored on a Citrix-managed Storage Zone.

Configure policies and actions

For example, following the steps below, you can create an Excessive file sharing policy. Using this policy, when a user in your organization shares an unusually large amount of data, the share links are automatically expired. You are notified when a user shares data that exceeds that user’s normal behavior. By applying the Excessive file sharing policy, and taking immediate action, you can prevent data exfiltration from any user’s account.

To create a policy, do the following:

1. After signing in to Citrix Analytics, go to Security > Policies > Create Policy.

   

2. From the IF THE FOLLOWING CONDITION IS MET list box, select the default or the custom risk indicator conditions upon which you want an action applied.

   

3. From the THEN DO THE FOLLOWING list, select an action.

   

4. In the Policy Name text box, provide a name and enable the policy using the toggle button provided.

   

5. Click Create Policy.

After creating a policy, the policy appears on the Policies dashboard.

The Policies dashboard displays the policies associated with the data sources that are successfully discovered and connected to Citrix Analytics. The dashboard does not display the policies that have conditions defined for the undiscovered data sources.

For example, you have selected a risk indicator from Content Collaboration as a condition for your policy. But you do not have a subscription to use Citrix Content Collaboration and therefore Citrix Analytics does not discover this data source. So, your policy does not appear on the Policies dashboard.

However, turning off data processing for an already connected data source does not affect the existing policies on the Policies dashboard.

Request end user response

Request End User Response is a global action using which you can alert a user immediately after you detect an unusual activity in their Citrix account. When you apply the action, an email notification is sent to the user. The user needs to response through the email about the legitimacy of their activity.

Prerequisites:

Before applying the Request End User Response action on your users, ensure one of the following:

• The email addresses of your users are available in the Active Directory. And you must connect your Active Directory with Citrix Cloud.

• The email addresses of your users (employees and clients) are available in their Content Collaboration accounts. For information on how to create and manage users in Content Collaboration, see People settings.

You can’t apply this action to anonymous users. These users don’t have email addresses either in Active Directory or Content Collaboration.

Determine what action you want to apply for your users:

Based on the user’s response, you can determine the next course of action that you want to take. You can apply a global action such as Add to watchlist, Notify administrators. Or you can apply a data source specific action such as Citrix Gateway- Lock user, Citrix Content Collaboration- Disable user.

If you receive a response that the user performed the reported activity, then the activity is not suspicious and you need not take action on the user’s account. The daily limit to send security alerts to the user is three emails.

Consider a Citrix Content Collaboration user whose risk score has exceeded 80 in a duration of 80 minutes. You can alert the user about this unusual behavior by applying the Request End User Response action. A security alert is sent to the user from the email ID security-analytics@citrix.com.

The email contains the following information:

• User’s activity that triggered the risk indicator

• User’s device

• Date and time of the user activity

• Locations (cities and countries) from where products or services are successfully accessed. If the city or country is unavailable, the corresponding value is shown as “Unknown”

The Request End User Response action is added to the user’s risk timeline.

If the user does not recognize the activity detected in their Citrix account, Citrix Analytics applies the action that you have defined.

If the user fails to send their response within one hour of receiving the email, Citrix Analytics adds the user to the watchlist. You can monitor the user and their account for any suspicious activities and take actions accordingly.

How to set the user response time?

You can configure the user’s response time to your security alert email. If the user does not respond about the reported activity within the specified time period, the user is added to the watchlist for monitoring.

Follow the steps to configure the user’s response time:

1. Click Settings > Alert Settings > End User Email Settings.

   

2. On the End User Email Settings page, enter the number of minutes on the text box.

   

3. Click Save Changes.

You can also add a banner, header text, and footer text in the security alert email to make it look legitimate, attract users’ attention, and increase the response time. For more information, see End user email settings.

Customization of end-user email content

Previously, Citrix Analytics administrators manually reached out to end-users to provide remediation instructions on detection of suspected activity, which was a time-consuming process to close an incident.

The customization of end-user email content feature is introduced for end-user response and informational email. The end-user response email seeks user validation/response, however an informational email shows the kind of suspicious activity and what kind of remediation action has already been taken.

With the Customization of end-user email content feature, Citrix Analytics administrators can add a custom message in the end-user/informational email body template. Using the rich text box editor, an administrator can alter the content per policy using various editing tools such as bold, italic, hyperlink, and so on.

Note

The Customization of end-user email content feature is only available for policy based actions and not for manual actions.

You can customize the content for two types of emails:

• End-user response email.
• Email sent when any of the following end-user actions is performed:
  • Log off action under Citrix Apps and Desktop
  • Log off and lock user under Citrix Gateway

You can view the list of policies at Security > Policies tab.

One can view the customize email body by clicking the existing policy or while creating a new policy. On the right-hand pane, you can get a preview of the updated email content.

Note

The administrator can set the content to the default template by clicking the Reset to default link. The character limit for the custom body is 1000.

Click Save Changes to create/update the policy. When the policy is triggered, the following email notification is sent to the end-user:

• End-user email: A policy action which sends an email requesting for user response.

• Informational email: An informational email which is sent after an end-user action.

The end-user can read the email and complete the remediation actions as requested by the administrator.

Note

The administrator with read only access cannot edit/add the email body.

Notify user after applying disruptive action

In this action type, you can apply a disruptive action such as Log off user and Lock user on the user’s account when an unusual activity is detected. When an action is applied on the user’s account, services to their account might be interrupted. In such instances, the user must contact the administrator to be able to access their account like before.

Consider a Citrix Content Collaboration user whose risk score has exceeded 80 in a duration of 80 minutes. You can log the user off. Once this task is performed, the user cannot access their account and an email notification is sent to the user from the email ID security-analytics@citrix.com. The email contains details of the event such as the activity, device, date and time, and the IP address. The user must contact the administrator to access their account as before.

Apply an action manually

Consider a user, Lemuel who signs in to a network by using a new device for the first time. To monitor her account since her behavior is unusual, you can use the Notify administrator(s) action.

To manually apply the action to the user, you must:

Navigate to a user’s profile and select the appropriate risk indicator. From the Actions menu, select the Notify administrator(s) action and click Apply.

An email notification is sent to all or selected administrators to monitor her account. The action applied is added to her risk timeline, and the action details are displayed on the right pane of the risk timeline page.

Notes

• If you are a Citrix Cloud administrator with full access permissions, by default, the email notifications are disabled for your Citrix Cloud account. To receive email notifications, enable it on your Citrix Cloud account. For more information, see Receive emailed notifications.

• If you are a Citrix Cloud administrator with custom access permissions (read-only and full access) to manage Security Analytics, the email notifications are enabled for your Citrix Cloud account. To stop receiving email notifications from Citrix Analytics, request your Citrix Cloud full access administrator to remove your name from the notify administrators distribution list. For information about, see Email distribution list.

Manage policies

You can view the Policies dashboard to manage all the policies created on Citrix Analytics to monitor and identify inconsistencies on your network. On the Policies dashboard, you can:

1. View the list of policies

2. Details of the policy

   • Name of the policy

   • Status – Enabled or disabled.

   • Duration of the policy – Number of days the policy has been active or inactive.

   • Occurrences – The number of times the policy is triggered.

   • Modified – Timestamp, only if the policy has been modified.

3. Delete the policy

   • To delete a policy, you can select the policy you want to delete and click Delete.

   • Or you can click the policy’s name to be directed to the Modify Policy page. Click Delete Policy. In the dialog, confirm your request to delete the policy.

4. Create a policy

5. Click a policy’s name to view more details. You can also modify the policy when you click its name. Other modifications that can be done are as follows:

   • Change the name of the policy.

   • Conditions of the policy.

   • The actions to be applied.

   • Enable or disable the policy.

   • Delete the policy.

Note

• If you don’t want to delete your policy, you can choose to disable the policy.

• To re-enable the policy on the Policies dashboard, do the following:

  • On the Policies dashboard, click the Status slider button and refresh the page. The Status slider button turns green.

  • On the Modify Policy page, click the Enabled slider button on the bottom of the page.

Supported modes

Citrix Analytics supports the following modes on policies:

• Enforcement mode - In this mode, the configured policies impact user accounts.

• Monitor mode - In this mode, the configured policies do not impact user accounts. You can set policies to this mode if you want to test any policy configurations.

Use the following instructions to configure modes on policies:

1. Navigate to Security > Policies.

2. On the Policies page, select the icon at the top right corner, that is displayed next to the Search bar. The SELECT MODE window is displayed.

3. Select the mode of your choice and click Save Settings.

Note

The default policies created by Analytics are set to monitor mode. As a result, the existing policies also inherit this mode. You can assess the impact of all the policies together and then, change them to enforcement mode.

Self-service search for Policies

On the self-service search page, you can view the user events that have satisfied the conditions defined in the policies. The page also displays the actions applied on these user events. Filter the user events based on the applied actions.