Skip to main content
  • EN

AD_4nXdc6nY2lk5VcYLoX4Nvx4YSSjD6mBxvQ68pLrlWlzq6CvbQhMm4W4Mxw-W2FI4Shak_vagTF0lQSUAnSjD-CLql2L2YLcdgdLwVGoU6dcBBAbnVBU6bsWnSFMUhOa28KtD52u5betT3NGL9x5sgQ58o5RZo?key=bXDScKP71tiVh2Os-O7eHw

Netskope Global Technical Success (GTS)

Block TeamViewer using Netskope’s Cloud Firewall

 

Netskope Cloud Version - 119

 

Objective

The objective of this document is to describe the procedure for blocking TeamViewer using Netskope. While TeamViewer is referenced for example, this procedure can be applied for similar Remote Control Applications that an IT Administrator would like to access control over, within the organization.

 

Prerequisite

This use case can be implemented using Netskope’s Cloud Firewall/SWG. This document will describe the procedure for Blocking TeamViewer Application via Cloud Firewall.

 

Context

  • AnyDesk and TeamViewer are both remote desktop applications that allow users to connect to and control another computer over the internet.
  • They are commonly used for remote support, remote work, and accessing files or applications on another device from a different location. While these applications are available for free, they might not be sanctioned for use within the organization which is why IT Teams might need to exercise control over them. This document describes the procedure for blocking these Applications via Netskope’s Cloud Firewall Module.

 

Do You Know?

  • Netskope’s Cloud Firewall Module supports detection of well known apps using Deep packet inspection. 
  • This means that commonly used Applications can be defined within a Cloud Firewall policy without having the need to define them separately as a Custom Firewall Application.
  • Examples of these Applications include : Zoom, TeamViewer, Remote Desktop Protocol (RDP).

 

AD_4nXe3dFXcRL0qbYPHAgSTlgEMMVdCUgb-xpfy_LO9gsU_DBttYtd6jECP_-8jGgCf-uuJn8KBcE-EXIHYLQy-9RM-Qqv5dBhA84Smb2Xh7fVt1pi4vsdmal0Aoo5Zk1hS3z2Vg1i1NLNn72GgbiKUaLqEJIs?key=bXDScKP71tiVh2Os-O7eHw

 

Details

Blocking TeamViewer using Netskope’s Cloud Firewall Module : 

  • TeamViewer is currently available as a predefined Firewall Application in the Apps module.
  • Since it is available as a Cloud Application, we will use the predefined Application. Else, we can define a Custom Application. You can refer to the document Titled “Block AnyDesk using Netskope’s Cloud Firewall for reference” to understand the procedure.” 

Step 1 : Create a Real Time protection Policy

Path: Netskope Tenant UI >>> Policies >>> Real Time Protection >>> New Policy --- Firewall

AD_4nXd-soBdBnlSCKG5PpJEm6X_WCQzdOsiPIJf2BJDh432Gxbc_m_KZchUrMADJqxVwNkNjRBYgX9XupWNAGDULTBk7_PHyvpmAD4vQyMKvDkblMNFmccUCuXdazTwWTFlEeV9VSbzRU6670i6WnkF-1hXiu8?key=bXDScKP71tiVh2Os-O7eHw

Lab Recreate

When you try to access TeamViewer Application, your session will be frequently terminated and you will receive a Block Alert that can be viewed under Skope IT - Alerts

AD_4nXfqsOzE5jmLL5B8LrgZlb84T5Q39Jxb9GoXLqY94xwUDi9NOjEbWR1oukM0RhppmYbMpaOvvoGsi0jV_WpJjgguGh72wsZontMr-wyThB8g10sZO-XJWOhE--RYvkO8yzMPPK12l_4NWhMlmo28HUc0MAYJ?key=bXDScKP71tiVh2Os-O7eHw

 

Terms and Conditions

  • All documented information undergoes testing and verification to ensure accuracy.
  • In the future, it is possible that the application's functionality may be altered by the vendor. If any such changes are brought to our attention, we will promptly update the documentation to reflect them.

 

Notes

  • This article is authored by Netskope Global Technical Success (GTS).
  • For any further inquiries related to this article, please contact Netskope GTS by submitting a support case with 'Case Type – How To Questions'.

 

Be the first to reply!
Terms & ConditionsCookie settings