In the MEM admin center, select Devices\Configuration profiles. In this demo, I will not be running MDAC in Audit mode. It is recommended that MDAC is implemented in Audit mode initially to discover information about what will be impacted by turning on the feature. If there is no deny rule set for the application in the deployed configuration, then the classification data will be used to determine if the application has a good reputation or not. When implementing MDAC, it will tap into the Intelligent Security Graph (ISG), which is Microsoft’s threat analytics data which helps to classify if an application has a good reputation. Use AppLocker to granularly fine-tune the restrictions.’.Enforce WDAC at the most restrictive, least privilege level.As a best practice, Microsoft recommends that admins: However, AppLocker can be used effectively to compliment WDAC, to allow the usage of different policies per user on the same device. A key difference is that AppLocker does not offer the chain of trust, from the hardware to the kernel, that WDAC offers. AppLocker also enables you to control which applications and files can run on your system. WDAC works in-conjunction with Secure Boot, to ensure that boot binaries and the UEFI firmware are signed and have not been tampered with.Ī common misconception is that WDAC is an AppLocker replacement. It also hardens the operating system against kernel memory attacks using virtualization-based protection of code integrity (HVCI). CI guarantees that only the trusted code runs from the boot loader onwards.
WDAC restricts application usage via a feature called configurable code integrity (CI). Applications or drivers need to be specified as trustworthy, which reduces the threat of executable based malware significantly. ‘WDAC, allows you to control your Windows 10 devices by creating policies that define whether a specific driver or application can be executed on a device. I wrote about MDAC back in the WDAC days for Adaptiva here’s the quote from that article at Simplifying Windows Defender Application Control with ConfigMgr & Intune Microsoft Defender Application Control (MDAC) started off as Device Guard, then became Windows Defender Application Control and is now Microsoft Defender Application Control – try and keep up!
In this latest addition to the Keep it Simple with Intune series, I will implement Microsoft Defender Application Control policies to lock down the application estate to trusted apps.
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