A BIOS-level rootkit is programming that exists in a system's memory hardware to enable remote administration. Because the rootkit lives in the computer’s BIOS (basic input/output system), it persists not only through attempts to reflash the BIOS but also through hard drive erasure or replacement.
A BIOS-level rootkit attack, also known as a persistent BIOS attack, is an exploit in which the BIOS is flashed (updated) with malicious code. A BIOS rootkit is programming that enables remote administration.
The blue pill rootkit is malware that executes as a hypervisor to gain control of computer resources. Joanna Rutkowska, a security researcher for Singapore-based IT security firm COSEINC, developed the Blue Pill rootkit as proof-of-concept malware, which she demonstrated at the 2006 Black Hat Briefings conference.