Early Launch Antimalware, Boot-Start Driver Initialization Policy must be enabled and configured to only Good and Unknown.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-226158	WN12-CC-000027	SV-226158r794497_rule		Medium

Description
Compromised boot drivers can introduce malware prior to some protection mechanisms that load after initialization. The Early Launch Antimalware driver can limit allowed drivers based on classifications determined by the malware protection application. At a minimum, drivers determined to be bad must not be allowed.

STIG	Date
Microsoft Windows Server 2012/2012 R2 Domain Controller Security Technical Implementation Guide	2022-03-01

Details

Check Text ( C-27860r475797_chk )
If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \System\CurrentControlSet\Policies\EarlyLaunch\ Value Name: DriverLoadPolicy Type: REG_DWORD Value: 1

Fix Text (F-27848r475798_fix)
Configure the policy value for Computer Configuration -> Administrative Templates -> System -> Early Launch Antimalware -> "Boot-Start Driver Initialization Policy" to "Enabled" with "Good and Unknown" selected.