Executive Risk Summary
"A vulnerability in the Microsoft vulnerable driver block list, implemented as Windows Defender Application Control (WDAC) policy, may allow certain drivers to bypass the blocklist. This could potentially lead to malicious drivers being loaded, even with hypervisor-protected code integrity (HVCI) enabled."
Operational Audit Arsenal
Target Type Driver
Target Asset Vulnerable drivers
Standard Path %windir%System32drivers
PowerShell
# 🛠️ Senior Engineer Universal Audit
# Target: Vulnerable drivers (Driver)
$Targets = 'Vulnerable drivers'
$SearchPaths = @("$env:windir\System32", "$env:ProgramFiles", "${env:ProgramFiles(x86)}")
Get-ChildItem -Path $SearchPaths -Include $Targets -Recurse -ErrorAction SilentlyContinue |
Select-Object FullName, @{Name="Version";Expression={$_.VersionInfo.ProductVersion}}Patch Impact Forecast
Reboot Required Likely
System and application stability
Internal Work Notes
Investigate and apply updated WDAC policies to ensure proper blocking of vulnerable drivers, and consider enabling HVCI for enhanced protection.
Technical Intelligence & Operational Utilities • Delivered Weekly
Intelligence Sources
MSRC Advisoryhttps://learn.microsoft.com/en-us/windows/security/application-security/application-control/app-control-for-business/design/microsoft-recommended-driver-block-rules
MSRC Advisoryhttps://learn.microsoft.com/en-us/windows/security/hardware-security/enable-virtualization-based-protection-of-code-integrity
Official Advisoryhttps://x.com/JonnyJohnson_/status/1895103112924307727
Related Microsoft Threats
Data compiled from NVD, MSRC, and CISA KEV Catalog. Intelligence synthesized via AI. Scripts provided for diagnostic purposes under MIT License.