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Microsoft Hardens Vista Against Kernel-Mode Malware

With the threat from kernel-mode rootkits on the rise, Microsoft plans to make a significant policy change to block uncertified drivers from loading on x64 versions of Windows Vista.

Starting with Windows Vista and Windows Server (Longhorn), kernel-mode software must have a digital signature to load on x64-based computer systems.

The decision to block unsigned drivers from loading is a direct attempt to restrict the spread of powerful rootkits that intercept the native API in kernel-mode and directly manipulate Windows data structures.

A Microsoft spokesperson said the far-reaching policy change was part of the company's SDL (Security Development Lifecycle), the mandatory software creation process used by Redmond engineers to bake security into all Internet-facing products.(continue at source)



  
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