A Chinese AV company 360 discovered a new Trojan, the BMW Virus (also called Mebromi), that can actually infect a computers BIOS: BMW 360 Security Center virus is the latest catch of a high-risk virus, the virus that infected a chain BIOS (motherboard chip program), MBR (master boot drive) and Windows system files, reinstall the system, regardless of the victim computer, format the hard disk, or replace the hard disk can not completely remove the virus.
http://thehackernews.com/2011/09/bio...y-chinese.html