Internet Traffic blocked in Edge Sandbox Mode (Windows Defender Application Guard)
I have successfully activated Windows Defender Application Guard but it seems surfing in Edge Sandbox Mode has been impossible. All required gpos and addition requirements as described on here: https://learn.microsoft.com/en-us/windows/security/application-security/application-isolation/microsoft-defender-application-guard/configure-md-app-guard https://learn.microsoft.com/en-us/windows/security/application-security/application-isolation/microsoft-defender-application-guard/faq-md-app-guard have been configured accordingly. I had a tip from microsoft support that my firewall could be blocking traffic (NAT)coming from the Host Computer so should allow all IP subnets in the range of 172.x.x.x or 192.x.x.x. I have tested that by allowing this traffic in the Trellix including Remote Ports 49700–65535, as described in Trellix documentation here https://kcm.trellix.com/corporate/index?page=content&id=KB88788 but to no avail. Could there be any other underlying root causes in a typical Enterprise environment where systems have been hardened using Security policies defined by CIS. What rules can be exempted here in order to allow this kind of traffic. Anybody has experience with this kind of environment or issue. Some tips will be welcomed.
Issue related to Microsoft defender application Guard
For MDAG edge-Can we inherit web content filtering policy to MDAG edge? The particular URLS block by an organization is opening in an MDAG edge isolated environment if that site is not whitelisted. For example, if WhatsApp or Facebook is not opening in simple edge due to company policy, but it opens in an isolated environment of MDAG Edge. In the Edge browser, it's blocked by Microsoft Defender smart screen.
Windows Defender Application Guard - opening files
How do I configure Windows Defender Application Guard in order to open Microsoft Office files? The only way I have found so far is to enable the policy ' Allow files to download and save to the host operating system from Windows Defender Application Guard '. Is there a way to open MS Office files within the WDAG session without saving the to the host operating system? Many thanks Simon
Windows Defender Application Guard with AMD CPU (Pro, 1909 Build) problem
Hello guys, i can't install/ enable the Windows Defender Application Guard in "Apps & Features". The feature is greyout: I don't think it matters that i configure the "Windows 10 Version 1903 and Windows Server Version 1903 Security Baseline (Sept2019Update)" but just in case. Also my CPU is a AMD Ryzen 5 2600 with ASRock B450 Pro4 with latest BIOS (3.50) and i enable all features which are required. Same also for IOMMU support but (maybe related?) msinfo32 hide Hyper-V information if i enable AMD-V: My PC also have the requirements from https://docs.microsoft.com/de-de/windows/security/threat-protection/windows-defender-application-guard/install-wd-app-guard (16GB RAM, SSD, even IOMMU enabled) I also enable the feature over Powershell and reboot but Edge doesn't show me a "open isolated tab" so i guess it doesn't work. Please help Edit: i also try a InPlace Upgrade (from 1809 to 1909 build) which doesn't help
Windows Defender Application Guard inside Windows Security App
Windows Defender Application Guard is designed to prevent attacks on local machines and from expanding malicious activity throughout a corporate network. If you are interested in learning more about Application Guard and how to install it in standalone mode, please see our previous blog. In the upcoming Windows release (Build 17691+), we have built an interface to configure Windows Defender Application Guard inside the Windows Security app. This allows users to configure Application Guard or check the administrator’s configuration of Application Guard at the same place as other Windows security features. The four settings that can be configured for Application Guard in the Windows Security app are: Save data Copy and paste Print files Advanced graphics Standalone users with devices that meet the minimum requirements will see Application Guard in the Browser & apps control section in Windows Security. From there, users can invoke the installation of this feature and configure its settings. When devices fall below the minimum spec, users will be alerted of this in the configuration page for Application Guard. Managed users can see how their administrators have configured their settings to have a better understanding of how they can operate between an Application Guard container and their host system. Here’s how users can configure or check their Application Guard status: Install and configure Go to the Windows Security app and select “App & browser control.” Select “Install Windows Defender Application Guard” under Isolated Browsing. Check the “Windows Defender Application Guard” box and Install from the Turn Windows features on or off screen and click OK. Restart your device. Return to the Windows Security app and select “App & browser control.” Select “Change Application Guard settings” to configure the settings. View managed Application Guard settings Go to the Windows Security app and select “App & browser control.” Select “Change Application Guard settings” to view the settings. Review the configurations set by your administrator. We encourage Windows Insiders to use the Windows Security app to configure and view Application Guard settings. Your feedback, suggestions, and telemetry will help us to improve Application Guard’s user experience. Feedback Hub link: http://windows-feedback/?contextid=713
