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Help with Win32.Brontok worm, please


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#1 araminta18

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Posted 10 May 2009 - 09:56 PM

Hi,
I'm a noob but I need help. Somehow, after surfing the internet (all fairly safe sites, I thought, the only odd one was a wordpress blog?) I get this random pop up, supposedly from my security center, asking me this:

Do you want to block this suspicious software
Name: Win32.Brontok
Risk Level: High
Description: This worm spreads via the Internet as an attachment to infected messages. It sends itself to email addresses harvested from the victim machine.

I'm running AVG Anti-Virus 2009 free software; it isn't showing that I have any infections. I also have Ad-Aware 2007, but it hasn't popped up to warn me about anything. I'm running Windows XP Home Edition, Service Pack 3.
Should I be worried? How can I get rid of this? Please help! Thank you.

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#2 quietman7

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Posted 11 May 2009 - 10:11 AM

Please download the Brontok Disinfection Tool and follow the instructions posted by Sophos.
Note: Make sure you download and use BRONTGUI.com. BRONTSFX.EXE is a self-extracting archive containing a command line disinfector for use by system administrators on Windows networks.

Alternatively you can try downloading and running the Quick Cleaner for Brontok.

Then, please download Malwarebytes Anti-Malware (v1.36) and save it to your desktop.
alternate download link 1
alternate download link 2

MBAM may "make changes to your registry" as part of its disinfection routine. If using other security programs that detect registry changes (ie Spybot's Teatimer), they may interfere or alert you. Temporarily disable such programs or permit them to allow the changes.
  • Make sure you are connected to the Internet.
  • Double-click on mbam-setup.exe to install the application.
  • When the installation begins, follow the prompts and do not make any changes to default settings.
  • When installation has finished, make sure you leave both of these checked:
    • Update Malwarebytes' Anti-Malware
    • Launch Malwarebytes' Anti-Malware
  • Then click Finish.
MBAM will automatically start and you will be asked to update the program before performing a scan.
  • If an update is found, the program will automatically update itself. Press the OK button to close that box and continue.
  • If you encounter any problems while downloading the definition updates, manually download them from here and just double-click on mbam-rules.exe to install.
On the Scanner tab:
  • Make sure the "Perform Quick Scan" option is selected.
  • Then click on the Scan button.
  • If asked to select the drives to scan, leave all the drives selected and click on the Start Scan button.
  • The scan will begin and "Scan in progress" will show at the top. It may take some time to complete so please be patient.
  • When the scan is finished, a message box will say "The scan completed successfully. Click 'Show Results' to display all objects found".
  • Click OK to close the message box and continue with the removal process.
Back at the main Scanner screen:
  • Click on the Show Results button to see a list of any malware that was found.
  • Make sure that everything is checked, and click Remove Selected.
  • When removal is completed, a log report will open in Notepad.
  • The log is automatically saved and can be viewed by clicking the Logs tab in MBAM.
  • Copy and paste the contents of that report in your next reply. Be sure to post the complete log to include the top portion which shows MBAM's database version and your operating system.
  • Exit MBAM when done.
Note: If MBAM encounters a file that is difficult to remove, you will be asked to reboot your computer so MBAM can proceed with the disinfection process. If asked to restart the computer, please do so immediately. Failure to reboot normally (not into safe mode) will prevent MBAM from removing all the malware.
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