05.08.2016 Views

ANALYSIS OF THE ATTACK SURFACE OF WINDOWS 10 VIRTUALIZATION-BASED SECURITY

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Kernel HVCI bypass, MS16-066<br />

• Before MS16-066 fix, there are some pages with<br />

RWX permission in root partition (kernelmode)<br />

EPT<br />

• Likely artifacts of early boot phase<br />

• Attacker can find them by probing each physical<br />

page for write and execute, in ring0

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