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I have a horrible virus - no clue what to do

post #1 of 67
Thread Starter 
I bought a new hard drive and reformatted my computer yesterday morning, but managed to contract a virus on day 1 of my fresh install. It completely obliterated the installation and I was unable to boot regularly or even into safe mode. Every time I try to boot, it just goes directly into Windows repair, which ends up failing.
So, I decided to go ahead and reformat again yesterday afternoon. I ran killdisk to wipe the drive, and then installed Windows over that. It worked fine last night, but this morning after about an hour of my computer being on, the virus came back and once again obliterated my computer.

I thought reformatting was supposed to get rid of viruses.... does this mean I may have contracted some sort of BIOS virus??
I'm honestly at a loss here. This is the first virus I've had in 8+ years and am not really sure what to do.

It'd be fantastic if anyone could offer some advice.

Edit - Some additional information: I noticed that every time the virus comes back, about 20 or so randomly named processes start and EVERYTHING that I'm running crashes, then the computer restarts and won't ever get past windows repair.
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post #2 of 67
the virus could be on a flash drive, another computer on your network, or a website you visit very frequently.

do the reformat thing again (I know its a pain in the butt)
install good AV like avast or security essentials immediately
scan all your usb drives before opening any files
check all other PC's on the network
Edited by OutOfBalanceOX - 6/17/11 at 9:27am
    
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post #3 of 67
Could be a network virus, such as a root kit on someone elses PC on your network (if you have a network). I'd scan the computers in the house as well.
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post #4 of 67
By any chance are you copying back data you backed up after you reformat? Maybe something you have is all infested with viruses.

I've never gotten a virus that nasty that will still persist after wiping the HDD. But, if it helps do OutOfBalanceOX suggested. It usually works for me after a few tries.
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post #5 of 67
First thing to determine is what other devices are connected to this computer. Were you using the internet after the fresh install? Is this computer networked with other computers/devices within your home? How are you connecting to the internet (modem/router/wireless etc)?
post #6 of 67
Thread Starter 
I'm connected to the internet through a router and I've got 2 other Windows computers on my network, one of which is just a media server. Both of those computers are fine, if the virus was on the network wouldn't they all be infected?
I don't have any flash drives plugged in, although I do have an external drive hooked up. I also have 3 other internal hard drives besides this new one that I just bought.
I hadn't actually started copying anything back yet during this latest reformat. The only things I had were the bare minimals like firefox, itunes, vlc, etc.

I guess I'll try wiping the drive again and reformatting, and I'll install an AV right away to see if it stops it from happening. I'll also scan all of my hard drives and see what comes up.
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post #7 of 67
Quote:
Originally Posted by EmeraldICE View Post
I'm connected to the internet through a router and I've got 2 other Windows computers on my network, one of which is just a media server. Both of those computers are fine, if the virus was on the network wouldn't they all be infected?
I don't have any flash drives plugged in, although I do have an external drive hooked up. I also have 3 other internal hard drives besides this new one that I just bought.
I hadn't actually started copying anything back yet during this latest reformat. The only things I had were the bare minimals like firefox, itunes, vlc, etc.

I guess I'll try wiping the drive again and reformatting, and I'll install an AV right away to see if it stops it from happening. I'll also scan all of my hard drives and see what comes up.
It is possible to have a virus and not show symtoms (even on a PC)
check the external drive and storage drives for viruses


what antivirus have you been using?
it should be the first thing you install
    
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post #8 of 67
You should zero your drive. Some viruses can sit in the MBR and affect it even after a format. Its not a network virues, I can tell you that. If you're the only one affected then it could be on your flash drive or in your mbr. Just secure wipe your hdd and flash drive with some bootable media like gdisk or something.
post #9 of 67
Maybe your RAM is dying and busy corrupting everything
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post #10 of 67
Quote:
Originally Posted by .:hybrid:. View Post
Maybe your RAM is dying and busy corrupting everything
hmm....more likely that the problem being a virus that's for sure. I would try swapping out the ram if you can.
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