It is a fake virus and I have it too! Fortunately I have my trusty iPad!
Anyway, do a google search on SMART HDD and you will see what I am talking about.
I ended up having to buy PC Tools ($40 Australian) to get rid of the virus though I am not 100% sure if it is completely gone. http://http://www.pctools.com/forum/...DD-Smart-Check
I have hopefully pasted in the link I am referring to.
For my particular issue I think I am going to have to reload the OS. At present I am backing up to DVDs because any USBs or external HDD is not recognised.
The good news is that once you follow the instructions and unhide your data should still be there. Good luck.