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An Introduction to Hardware-Assisted Virtual Machine ( HVM ) Rootkits

Since mid-2006, a number of security researchers have made public claims about a theoretical rootkit technique based on the hardware-assisted virtualization capabilities of the most recent x86 processors from AMD and Intel. The presentations on the topic generated a great deal of excitement and private research. Until recently, however, there were no publicly-available source code or implementation details available. This paper and its associated source code presents a minimal hypervisor framework for a rootkit. Supporting code to insert the hypervisor into a running Windows XP system is also provided.