BACKGROUND:
Security researchers have found a flaw in Microsoft’s implementation of the Microsoft Windows Platform Binary Table (WPBT) mechanism, which can be exploited to compromise computers running Windows 8 and Windows 10 operating systems.
Microsoft describes WPBT as a fixed firmware Advanced Configuration and Power Interface (ACPI) table that was introduced with Windows 8 to enable OEMs and vendors to execute programs every time the Windows device boots up.
“The Eclypsium research team has identified a weakness in Microsoft’s WPBT capability that can allow an attacker to run malicious code with kernel privileges when a device boots up,” note the researchers.
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