Information
This policy setting allows you to specify which boot-start drivers are initialized based on a classification determined by an Early Launch Antimalware boot-start driver. The Early Launch Antimalware boot-start driver can return the following classifications for each boot-start driver:
- Good: The driver has been signed and has not been tampered with.
- Bad: The driver has been identified as malware. It is recommended that you do not allow known bad drivers to be initialized.
- Bad, but required for boot: The driver has been identified as malware, but the computer cannot successfully boot without loading this driver.
- Unknown: This driver has not been attested to by your malware detection application and has not been classified by the Early Launch Antimalware boot-start driver.
If you enable this policy setting you will be able to choose which boot-start drivers to initialize the next time the computer is started.
If your malware detection application does not include an Early Launch Antimalware boot-start driver or if your Early Launch Antimalware boot-start driver has been disabled, this setting has no effect and all boot-start drivers are initialized.
The recommended state for this setting is: Enabled: Good, unknown and bad but critical.
Rationale:
This policy setting helps reduce the impact of malware that has already infected your system.
Solution
To establish the recommended configuration via GP, set the following UI path to Enabled: Good, unknown and bad but critical:
Computer Configuration\Policies\Administrative Templates\System\Early Launch Antimalware\Boot-Start Driver Initialization Policy
Note: This Group Policy path may not exist by default. It is provided by the Group Policy template EarlyLaunchAM.admx/adml that is included with the Microsoft Windows 8.0 & Server 2012 (non-R2) Administrative Templates (or newer).
Impact:
None - this is the default behavior.
Default Value:
Disabled. (Boot-start drivers determined to be Good, Unknown or Bad but Boot Critical are initialized and the initialization of drivers determined to be bad is skipped.)
References:
1. CCE-33231-2