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black screen after virus scan

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Unread 13-03-2011, 01:14 AM   #1
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black screen after virus scan

I came across a virus yeterday that allowed me to boot my computer but would not allow any commands. I consulted a local computer store. Discount Electronics. and followed their online tuturiol step by step for virus removal. I ran Hijackthis, Malwarebytes, SuperAntiSpyware (SAS), ESET Online Scanner and HouseCallOnline Scanner. The only threats that came up were on Hijackthis and removed. Every other scan came up clean. I ran AFT Cleaner after every scan. And, on a reboot sometimes I didn't get into safe mode and the computer booted fine and I would turn it off and back on into safe mode. Shutdown or restart never worked. Now when I boot my computer out of safe mode I have a black screen with a curser that I can move on command. No other command works. Control Alt Delete, nothing. Control Shift esc, nothing. But, the it still runs in safe mode. Anyone have an idea of what happened and how I may fix it. FYI, I am not computer savy so explinations dumbed down are appreciated.
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Unread 13-03-2011, 06:55 AM   #2
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Re: black screen after virus scan

OK, this happened to me, i had a stupid virus like this one, but it damaged some of my windows files, like drivers etc, Now hwen you boot into safe mode, it loads MINIMAL drivers, so the possible damaged drivers can not affect the system as they are not being loaded, what i would suggest is you restart your computer, then press F8 repeatedly, until it brings you to the boot menu, one you have done this, select, "Safe Mode With Command Prompt", now it should take you to a CMD screen with something like this:
Code:
C:\Windows\System32:>_
Now type sfc /scannow and let it do it's thing, this will attempt tp fix any damaged files.

If this fails, then try to run a system restore from the recovery disc that came with your computer.

If you have tried everything, the only other option you have for a virus this bad, is to format the drive and reinstall Windows.

Good Luck.
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Unread 16-03-2011, 01:24 PM   #3
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Re: black screen after virus scan

if there's no important data in the pc, do a fresh reinstall of windows, and you'll be done by the end of the day.
tracing the exact cause of this problem will take days, and in the end, you'll still need to reinstall.
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Unread 16-03-2011, 04:27 PM   #4
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Re: black screen after virus scan

If you do a clean install, back up all your files to an external hard drive, then scan it with an antivirus BEFORE putting the files back on your computer.
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Unread 25-05-2011, 09:16 AM   #5
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Re: black screen after virus scan

Performing a ‘System restore’ is a solution to fix the black screen of death in your Windows7 Operating System. This is an easy task as well. In case the problem has occurred due to the latest update from Microsoft, you simply should start Windows 7 in ‘Safe’ mode and take your system back to the date before the last update using the ‘System Restore’ functionality. Starting the computer in ‘Safe’ Mode will help you to identify whether the problem is related to hardware or software. If your system loads properly in the ‘Safe’ mode, then you can confirm that the error is caused by problem in any software. If your system does not enter the ‘Safe’ mode, then the problem is basically related to hardware errors. Overheating and using the wrong drivers will lead to hardware errors.
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Unread 25-05-2011, 05:19 PM   #6
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Re: black screen after virus scan

Quote:
Originally Posted by echo off View Post
OK, this happened to me, i had a stupid virus like this one, but it damaged some of my windows files, like drivers etc, Now hwen you boot into safe mode, it loads MINIMAL drivers, so the possible damaged drivers can not affect the system as they are not being loaded, what i would suggest is you restart your computer, then press F8 repeatedly, until it brings you to the boot menu, one you have done this, select, "Safe Mode With Command Prompt", now it should take you to a CMD screen with something like this:
Code:
C:\Windows\System32:>_
Now type sfc /scannow and let it do it's thing, this will attempt tp fix any damaged files.

If this fails, then try to run a system restore from the recovery disc that came with your computer.

If you have tried everything, the only other option you have for a virus this bad, is to format the drive and reinstall Windows.

Good Luck.


Nice tips the Echo Off why to go! That should do it...
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Unread 25-05-2011, 06:02 PM   #7
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Re: black screen after virus scan

@kristain-system restore isn't usually a good idea when a (suspected) virus is involved, cos it rarely gets rid of the virus!
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Unread 25-05-2011, 06:44 PM   #8
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Re: black screen after virus scan

Doing a system restore will be no good to you if the virus you had been infected with damaged your system files which it clearly has by what I have read here.

Quote:
Anyone have an idea of what happened and how I may fix it.
Yes... It was HiJackThis that has resulted in you removing infected "system files" when you run HiJackThis you need to know what your doing with such a powerful program.

At this point what you should do now is run the Install CD to perform a system repair, then Run Malwarebytes in 'Safemode' and then again in normal mode to check for any other infections and then download and run the 'Kapersky TDSSKiller in safemode too.

Once you have done that download OTL by following the instruction below then post your results here;

To Download OTL to your Desktop Click Here

1. Double click on the icon to run it. Make sure all other windows are closed.
2. Click on Minimal Output at the top
3. Download the following file scan.txt to your Desktop. Download From Here You may need to right click on it and select "Save"
4. Double click inside the Custom Scan box at the bottom
5. A window will appear saying "Click Ok to load a custom scan from a file or Cancel to cancel"
6. Click the Ok button and navigate to the file scan.txt which we just saved to your desktop
7. Select scan.txt and click Open.
8. Click the Quick Scan button. Do not change any settings.
9. When the scan completes, it will open two notepad windows. OTL.Txt Plus Extras.Txt. These are saved in the same location as OTL.
10. Copy [Edit > Select All > Edit > Copy] the contents of these files then one at a time and post them here.
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Unread 25-05-2011, 07:05 PM   #9
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Re: black screen after virus scan

Quote:
Originally Posted by Bugsy View Post
Doing a system restore will be no good to you if the virus you had been infected with damaged your system files which it clearly has by what I have read here.



Yes... It was HiJackThis that has resulted in you removing infected "system files" when you run HiJackThis you need to know what your doing with such a powerful program.

At this point what you should do now is run the Install CD to perform a system repair, then Run Malwarebytes in 'Safemode' and then again in normal mode to check for any other infections and then download and run the 'Kapersky TDSSKiller in safemode too.

Once you have done that download OTL by following the instruction below then post your results here;

To Download OTL to your Desktop Click Here

1. Double click on the icon to run it. Make sure all other windows are closed.
2. Click on Minimal Output at the top
3. Download the following file scan.txt to your Desktop. Download From Here You may need to right click on it and select "Save"
4. Double click inside the Custom Scan box at the bottom
5. A window will appear saying "Click Ok to load a custom scan from a file or Cancel to cancel"
6. Click the Ok button and navigate to the file scan.txt which we just saved to your desktop
7. Select scan.txt and click Open.
8. Click the Quick Scan button. Do not change any settings.
9. When the scan completes, it will open two notepad windows. OTL.Txt Plus Extras.Txt. These are saved in the same location as OTL.
10. Copy [Edit > Select All > Edit > Copy] the contents of these files then one at a time and post them here.

I agree Bugsy HiJackThis is a powerful tool. If you don't know what to look for or what you are doing you can do more harm than good. That is why Hijackthis Trend Micro states have an expert or someone who has knowledge with viruses also Windows system settings in and out to help the user.

Last edited by shawnpb; 25-05-2011 at 07:06 PM.. Reason: Correction
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Unread 02-06-2011, 11:00 AM   #10
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Re: black screen after virus scan

Hi, it seems that some of your files are corrupted due to virus attack. Firstly run your system in safemode by disabling your LAN network and scan your system with updated Antivirus.
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