Computer locked by malware

[cacho]

Hi

Seems that my Windows Vista desktop got a "virus" that lock the computer and shows a screen with the local police logo saying that my computer was locked and that I need to send 100euros to unlock it.

I have tried to run Rogue to stop the virus process and then try to clean it (while my computer was started in secure mode without network) but when Rogue starts to scan and detects the process, the system give me an exception message and - after a couple of minutes - screen turns black...

I have tried by starting with Kaspersky rescued DVD but the same happens, after a short time, screen becomes dark and computer unresponsive....

It is driving me crazy!!!

Any clue/help will be appreciated.

Thanks in advance
J

[thisisu]

Welcome to MajorGeeks, cacho

For 32-bit (x86) systems download Farbar Recovery Scan Tool and save it to a flash drive.
For 64-bit (x64) systems download Farbar Recovery Scan Tool x64 and save it to a flash drive.

Plug the flashdrive into the infected PC.

Enter System Recovery Options.

To enter System Recovery Options from the Advanced Boot Options:

• Restart the computer.
• As soon as the BIOS is loaded begin tapping the F8 key until Advanced Boot Options appears.
• Use the arrow keys to select the Repair your computer menu item.
• Choose your language settings, and then click Next.
• Select the operating system you want to repair, and then click Next.
• Select your user account and click Next.

To enter System Recovery Options by using Windows installation disc:

• Insert the installation disc.
• Restart your computer.
• If prompted, press any key to start Windows from the installation disc. If your computer is not configured to start from a CD or DVD, check your BIOS settings.
• Click Repair your computer.
• Choose your language settings, and then click Next.
• Select the operating system you want to repair, and then click Next.
• Select your user account an click Next.

On the System Recovery Options menu you will get the following options:

• Startup Repair
• System Restore
• Windows Complete PC Restore
• Windows Memory Diagnostic Tool
• Command Prompt

• Select Command Prompt
• In the command window type in notepad and press Enter.
• The notepad opens. Under File menu select Open.
• Select "Computer" and find your flash drive letter and close the notepad.
• In the command window type e:\frst.exe (for x64 bit version type e:\frst64) and press Enter
• Note: Replace letter e with the drive letter of your flash drive.
• The tool will start to run.
• When the tool opens click Yes to disclaimer.
• Press Scan button.
• It will make a log (FRST.txt) on the flash drive. Please attach this log to your next reply. (How to attach)

[cacho]

Thanks for your answer.

I have followed your instructions by using the windows installations disk.

Everything was working fine untill farbar started to scan. After around 10 seconds, the screen turned black and unresponsive....

However, I have waited for a while on the hope that farbar could finish in the background. Then, I have been forced to "kill" the system to turned off (by keep pressed power on button).

Seems that farbar was able to finish the scan...at least, I have found a file in the pen drive and I am attaching it to this post.

Thanks in advance.

C

[cacho]

Thanks for your answer.

I have followed your instructions by using the windows installations disk.

Everything was working fine untill farbar started to scan. After around 10 seconds, the screen turned black and unresponsive....

However, I have waited for a while on the hope that farbar could finish in the background. Then, I have been forced to "kill" the system to turned off (by keep pressed power on button).

Seems that farbar was able to finish the scan...at least, I have found a file in the pen drive and I am attaching it to this post.

Thanks in advance.

C

[thisisu]

NOTICE: This script was written specifically for this user, for use on that particular machine. Running this on another machine may cause damage to your operating system

Attached is fixlist.txt

• Save fixlist.txt to your flash drive.
• You should now have both fixlist.txt and FRST.exe on your flash drive.

Now re-enter System Recovery Options.
Run FRST and press the Fix button just once and wait.
The tool will make a log on the flashdrive (Fixlog.txt).
Please attach this to your next message. (How to attach)

Now attempt to boot normally.