Interessante pois alegadamente no Vista tomaram especial cuidado para evitar a inclusão de código malicioso...
0wning Vista from the boot
By Federico Biancuzzi
Federico Biancuzzi interviews Nitin and Vipin Kumar, authors of VBootkit, a rootkit that is able to load from Windows Vista boot-sectors. They discuss the "features" of their code, the support of the various versions of Vista, the possibility to place it inside the BIOS (it needs around 1500 bytes), and the chance to use it to bypass Vista's product activation or avoid DRM.