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Windows 7: Rootkit Virus killed my computer. Restored but still too slow to use?!


20 Jul 2012   #1

Windows 7 64 Bit Home Premium
 
 
Rootkit Virus killed my computer. Restored but still too slow to use?!

Hey Guys.

My computer was recently infected with a rootkit virus from what I could tell. When first discovered, my virus check took 38 hours and found 6898 virus's, I moved these to the chest and predictebly it killed windows, I was unable to boot into it or safe mode.

I used my installation of Ubuntu to back up important files and to try and troubleshoot the problem.

So to solve the problem, I first recovered windows using my recovery discs then I used an image backup to recover my programs (Note: The image was created a year prior to the virus therefore definitely clean). So I am now able to access Windows.

Problem:

My computer is running incredibly slow. It is unusable! I cannot open any program without it crashing and then I have to wait for it to reciver itself. I have run a further virus scan which brought up nothing. The Ram is registering at 2.78GB (Usable) which is about right considering I only have 3GB.

I have run an error check on my hard drive and there were no errors. I have started to (albeit slowly) uninstall unwanted programs and clear system files. I am trying to eliminate everything but it really is annoying me.

I am open to suggestion on what the problem may be.

Additional Info:

I opened up the Event Viewer and in the last 24 hours there have been over 500 errors. Also I use Avast Free to protect my computer

Hope some one can suggest some tests or solutions to my problem Cheers.


My System SpecsSystem Spec
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20 Jul 2012   #2

Win 7 32 Home Premium, Win 7 64 Pro, Win 8.1 Pro
 
 

Suggest you run a scan with Windows Offline Defender to see what it finds. D/L this on a different PC & run it on yours.

Windows Defender Offline

Most rootkits write a hidden boot partition which may not have been erased. Run this tool as well and post the results:

Anti-rootkit utility TDSSKiller
My System SpecsSystem Spec
20 Jul 2012   #3
Microsoft MVP

 

It's best to wipe the HDD first with Diskpart Clean Command

then Clean Reinstall - Factory OEM Windows 7 following the best practices in the tutorial to get a perfect reinstall.

After set up save a Windows 7 backup image to external once you have a perfect reinstall to wiped HD.
My System SpecsSystem Spec
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20 Jul 2012   #4

Windows 7 Ultimate x32
 
 

try these steps
first make repair to windows by
go to
start
run type cmd
press enter
a dos screen will appear
type
sfc /scannow
wait until repairing is finish
and these word appear
windows flie protection didnt find ................
which meaning there is no missing file
then use one of these registery program
like
ashampoo registery optimizer
tune up utilities
then use
ccleaner to clean the computer from temp files
My System SpecsSystem Spec
20 Jul 2012   #5

Windows 7 Ultimate x32
 
 

what is your antivirus program
My System SpecsSystem Spec
20 Jul 2012   #6
Microsoft MVP

 

Do not use any Registry cleaners or Optimizers besides CCleaner. Tune Up Utilities is also to be avoided.

You need to make sure you're disinfected using Borg's approach, or wipe the HD to get the freshest start.

Other steps are here for Troubleshooting Windows 7 Failure to Boot .
My System SpecsSystem Spec
20 Jul 2012   #7

Windows 7 Ultimate x32
 
 

Quote   Quote: Originally Posted by gregrocker View Post
Do not use any Registry cleaners or Optimizers besides CCleaner. Tune Up Utilities is also to be avoided.

You need to make sure you're disinfected using Borg's approach, or wipe the HD to get the freshest start.

Other steps are here for Troubleshooting Windows 7 Failure to Boot .
why he must avoid using Registry cleaners or Optimizers besides CCleaner. Tune Up Utilities is also to be avoided
can u explain if u dont mind
My System SpecsSystem Spec
20 Jul 2012   #8
Microsoft MVP

 

We see a lot of problems with Windows 7 being ruined by Registry Cleaners and Optimizing Suites. Most Registry Cleaners are sales operations with no genius behind them. It requires the highest level of genius to avoid damaging the registry. Only CCleaner has come through as fully trustworthy over more than 15 years. No claims of it damaging the registry are able to be confirmed, while we confirm others regularly.

However your idea to run SFC /scannow is good, once OP has fully disinfected his system.
My System SpecsSystem Spec
20 Jul 2012   #9

Windows 7 Ultimate x32
 
 

so which program u advice me to use to maintenance pc
My System SpecsSystem Spec
20 Jul 2012   #10
Microsoft MVP

 

If you've used those tools you mentioned then I would Clean Reinstall - Factory OEM Windows 7 using only the methods and tools mentioned in the tutorial to reinstall, setup and maintain Windows 7.
My System SpecsSystem Spec
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 Rootkit Virus killed my computer. Restored but still too slow to use?!




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