An excellent article:
http://cleanbytes.net/the-new-boot-record-viruses-tdl4-how-to-fix-the-master-boot-record-mbr
And resources:
A most recommended method, is to boot from a Windows LiveCD, then download or copy over the current Kaspersky’s TDSSKiller, and do a scan/cleanout with that. Then reboot, and run Hitman Pro for confirmation of deletion.