Hard Drive Rootkit Is Frighteningly Persistent
 

There are a lot of malware programs in the wild today, but luckily we have methods of detecting and removing them. Antivirus is an old standby, and if that fails you can always just reformat the hard drive and wipe it clean. That is unless the malware installs itself in your hard drive firmware. [MalwareTech] has written his own frightening proof of concept malware that does exactly this.

http://hackaday.com/2015/06/08/hard-...ly-persistent/