Blue Pill is the codename for a rootkit based on

x86 virtualization x86 virtualization is the use of hardware-assisted virtualization capabilities on an x86/x86-64 CPU. In the late 1990s x86 virtualization was achieved by complex software techniques, necessary to compensate for the processor's lack of hardware-as ...

. Blue Pill originally required

AMD-V x86 virtualization is the use of hardware-assisted virtualization capabilities on an x86/x86-64 CPU. In the late 1990s x86 virtualization was achieved by complex software techniques, necessary to compensate for the processor's lack of hardware-as ...

(Pacifica) virtualization support, but was later ported to support Intel VT-x (Vanderpool) as well. It was designed by

Joanna Rutkowska Joanna Rutkowska (born 1981 in Warsaw) is a Polish computer security researcher, primarily known for her research on low-level security and stealth malware, and as founder of the Qubes OS security-focused desktop operating system. She became kn ...

and originally demonstrated at the Black Hat Briefings on August 3, 2006, with a reference implementation for the Microsoft Windows Vista kernel. The name is a reference to the red pill and blue pill concept from the 1999 film '' The Matrix''.

Overview

The Blue Pill concept is to trap a running instance of the operating system by starting a thin hypervisor and virtualizing the rest of the machine under it. The previous operating system would still maintain its existing references to all devices and files, but nearly anything, including hardware interrupts, requests for data and even the system time could be intercepted (and a fake response sent) by the hypervisor. The original concept of Blue Pill was published by another researcher at IEEE Oakland in May 2006, under the name VMBR (virtual-machine based rootkit). Rutkowska claims that, since any detection program could be fooled by the hypervisor, such a system could be "100% undetectable". Since AMD virtualization is seamless by design, a virtualized guest is not supposed to be able to query whether it is a guest or not. Therefore, the only way Blue Pill could be detected is if the virtualization implementation were not functioning as specified. This assessment, repeated in numerous press articles, is disputed: AMD issued a statement dismissing the claim of full undetectability. Some other security researchers and journalists also dismissed the concept as implausible. Virtualization could be detected by a timing attack relying on external sources of time. In 2007, a group of researchers challenged Rutkowska to put Blue Pill against their rootkit detector software at that year's Black Hat conference, but the deal was deemed a no-go following Rutkowska's request for $384,000 in funding as a prerequisite for entering the competition. Rutkowska and Alexander Tereshkin countered detractors' claims during a subsequent Black Hat speech, arguing that the proposed detection methods were inaccurate. The source code for Blue Pill has since been made public, under the following license: ''Any unauthorized use (including publishing and distribution) of this software requires a valid license from the copyright holder. This software has been provided for the educational use only during the Black Hat training and conference.''

Red Pill

Red Pill is a technique to detect the presence of a virtual machine also developed by

References

External links

Introducing the Blue Pill by Joanna Rutkowska

InternetNews - Blackhat takes Vista to Task

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Business Week ''Bloomberg Businessweek'', previously known as ''BusinessWeek'', is an American weekly business magazine published fifty times a year. Since 2009, the magazine is owned by New York City-based Bloomberg L.P. The magazine debuted in New York City ...

, August 10, 2006
coach greg adams

Episode 54 of the Security Now Podcast
Black Hat 2006 Presentation

2008 Source code

{{DEFAULTSORT:Blue Pill (Malware) Rootkits Virtualization software