Windows Defender Application Guard

This time let’s give Windows Defender Application Guard a very simple test:

You can test this on a physical client or a Hyper-v client, take a look here for the requirements:

Testing Windows Defender Application Guard on a VM

The test will be done in an enterprise Active Directory domain (Enterprise-managed mode).

First lets create a Group policy (GPO) for Windows Defender Application Guard and apply it to the OU holding our clients.

Go to the following setting:

Computer Configuration\Policies\Administrative Templates\Network\Network Isolation\Enterprise resource domains hosted in the cloud

In the Enterprise cloud resources you can enter a pipe-separated (|) list of domain cloud resources (Trusted domains).

The domains you enter here will be rendered using Microsoft Edge (or Internet Explorer) and won't be accessible from the Application Guard environment.

You can use a leading "." as a wildcard character to trust subdomains. Configuring will automatically trust and etc.