Posted 28 October 2010 - 09:20 PM
My PC recently had a graphic card problem; it died, I think, I get no monitor signal on reboot yet I see the CMOS test counter going on my mother board. So, I went out and got a new graphic card and replace it. That works fine for one evening of intensive gaming; I was eager to test out everything that the new graphic card can do. The next evening, when I booted up my PC, I get the blue screen of death. I then cold booted the PC and choose the start normal route when it prompt me that I had a crash and select my start options, etc. Everything came up fine after that.
However, the blue screen had me worried. I either installed the new graphic card wrong; software or hardware wise; or I may have something on my PC that it's desirable. Anyway, I decided to run a full scan of the PC using Norton's security suite, and it found nothing. I figured since Norton being a big name in Antiviral software, some virus may be coded specifically to be under its radar. So, I decided to do a little research on what I can get that could give me a second opinion. I found the review on CNET about how great Stopzilla is at catching things that Norton and McCafe misses, I decided to give it a shot. I downloaded the free version, installed it, reboot, and did a full scan. It found 10 trojans and a ton load of other cookies and stuffs. To remove these virus and stuffs that it found, I had to pay for the registered version of Stopzilla; so I paid up and let it does what need to do to clean my machine.
It turns out, the cure was worse than the disease. After the cleaning, I rebooted my computer and got a blue screen. I tried cold booting out of the blue screen a few times just to get back to the same exact blue screen again. Finally, I tried rebotting with F8 and chose the start with last good known boot option, and I was able to get back to the desktop; however, I noticed that during the OS loading, I now no longer have the thermal bar; in its place is an ugly blueish back ground, then it went to black, then the desktop; not the same graphics you'd see when Windows Vista boot up. Also, my PC now takes at least twice as long to boot up than it was before. Once I get to the desktop, it took what seems like forever to do anything. By now, I am annoyed and decided to uninstall Stopzilla. This is yet another mistake, because Stopzilla will not be uninstalled. I tried downloading RKILL, hoping I could maybe kill whatever process is running and manually delete the files; and clean the registry entries manually after but, the moment RKILL.COM, RKILL.EXE, IXPLORER.EXE gets on my computer, it automatically got removed (not just deleted, it disappeared!). The only one I have a little luck with was the EXPLORER.EXE, which sticked around long enough for me to double clicked on it, then it too disappeared.
Needless to say, by now I'm pretty much fed up and decided to start with a blank plate. I found my Windows Vista CD and booted from DVD drive. I deleted the hard drive's partition, formatted it, then deleted the partion and formatted again for good measure. I reinstalled Vista, updated my hardware drivers and then I believe I made another mistake. I decided that may be all the troubles was actually due to the cleaning of viruses that may have affected critical files, so I give Stopzilla another try. I reinstalled Stopzilla and ran a full scan again; thinking once the scan is done, I would have a good image to back-up incase this ever happens again. Well, unexpectedly, Stopzilla founded a "gen downloader.1 Trojan" virus on my PC, among a few other minor cookies and such. Now, I'm not a computer security expert but, I work for a software company and I've never heard of a computer virus capable of surviving a hard drive format. So, with that said, is it at all possible for a virus to survive a partional deletion and hard drive format? If so, how was that done and how can I remove it from the PC? It can't possibly wrote itself into the BIOS.