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USB Flash Drive Infected!


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6 replies to this topic

#1 animesaint

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Posted 11 December 2009 - 08:54 PM

I have an USB flash drive, but it is infected with a strand of the VUNDO virus that my previous computer was infected by. I once plugged it in to a laptop and the antivirus quarenteened it so I immediately shut off the laptop. I am now at a loss, and I really want to just get my documents off of the USB flash drive and throw it away.
It is a cheap USB flash drive that is 256MB, from Bonzai Xpress, and is labled Simple Tech.

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#2 boopme

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Posted 11 December 2009 - 09:07 PM

Hello this should clean it.

Please download Flash_Disinfector.exe by sUBs and save it to your desktop.
  • Double-click Flash_Disinfector.exe to run it and follow any prompts that may appear.
  • The utility may ask you to insert your flash drive and/or other removable drives. Please do so and allow the utility to clean up those drives as well.
  • Hold down the Shift key when inserting the drive until Windows detects it to keep autorun.inf from executing if it is present.
  • Wait until it has finished scanning and then exit the program.
  • Reboot your computer when done.
Note: As part of its routine, Flash_Disinfector will create a hidden folder named autorun.inf in each partition and every USB drive that was plugged in when you ran it. Do not delete this folder...it will help protect your drives from future infection by keeping the autorun file from being installed on the root drive and running other malicious files.

Now scan your Laptop.
Next run MBAM (MalwareBytes):

NOTE: Before saving MBAM please rename it to zztoy.exe....now save it to your desktop.

Please download Malwarebytes Anti-Malware and save it to your desktop.

alternate download link

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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#3 animesaint

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Posted 12 December 2009 - 12:54 AM

Oh... um sorry, but the laptop is okay...(i hope because this laptop was not mine, and I don't think i can actually do your instructions on this other person's laptop.) I'm just wondering if it is okay to execute your directions on the previously infected home computer, that is now reformatted and reinstalled windows xp. Also, I would like another OK from you in order for me to actually do this on a clean, but historically has been infected (even though it was reformatted and reinstalled - not too long ago.)

Edited by animesaint, 12 December 2009 - 12:54 AM.


#4 boopme

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Posted 12 December 2009 - 11:49 AM

Yes and yes.. If that infected Drive was connected to the Laptop they need to run FD on it.
How do I get help? Who is helping me?For the time will come when men will not put up with sound doctrine. Instead, to suit their own desires, they will gather around them a great number of teachers to say what their itching ears want to hear....Become a BleepingComputer fan: Facebook

#5 animesaint

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Posted 12 December 2009 - 03:16 PM

Here is the logfile with my computer, not the laptop. I did the MBAM scan before I restarted from the FD was done.
Malwarebytes' Anti-Malware 1.42
Database version: 3350
Windows 5.1.2600 Service Pack 3
Internet Explorer 8.0.6001.18702

12/12/2009 12:16:07 PM
mbam-log-2009-12-12 (12-16-07).txt

Scan type: Quick Scan
Objects scanned: 105559
Time elapsed: 7 minute(s), 57 second(s)

Memory Processes Infected: 0
Memory Modules Infected: 0
Registry Keys Infected: 0
Registry Values Infected: 0
Registry Data Items Infected: 3
Folders Infected: 0
Files Infected: 0

Memory Processes Infected:
(No malicious items detected)

Memory Modules Infected:
(No malicious items detected)

Registry Keys Infected:
(No malicious items detected)

Registry Values Infected:
(No malicious items detected)

Registry Data Items Infected:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Security Center\AntiVirusDisableNotify (Disabled.SecurityCenter) -> Bad: (1) Good: (0) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Security Center\FirewallDisableNotify (Disabled.SecurityCenter) -> Bad: (1) Good: (0) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Security Center\UpdatesDisableNotify (Disabled.SecurityCenter) -> Bad: (1) Good: (0) -> Quarantined and deleted successfully.

Folders Infected:
(No malicious items detected)

Files Infected:
(No malicious items detected)

#6 animesaint

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Posted 12 December 2009 - 03:27 PM

This is the log for the same computer, but this scan was done after I had restarted as warranted by MBAM from the last scan.

Malwarebytes' Anti-Malware 1.42
Database version: 3350
Windows 5.1.2600 Service Pack 3
Internet Explorer 8.0.6001.18702

12/12/2009 12:26:07 PM
mbam-log-2009-12-12 (12-26-07).txt

Scan type: Quick Scan
Objects scanned: 106045
Time elapsed: 7 minute(s), 13 second(s)

Memory Processes Infected: 0
Memory Modules Infected: 0
Registry Keys Infected: 0
Registry Values Infected: 0
Registry Data Items Infected: 0
Folders Infected: 0
Files Infected: 0

Memory Processes Infected:
(No malicious items detected)

Memory Modules Infected:
(No malicious items detected)

Registry Keys Infected:
(No malicious items detected)

Registry Values Infected:
(No malicious items detected)

Registry Data Items Infected:
(No malicious items detected)

Folders Infected:
(No malicious items detected)

Files Infected:
(No malicious items detected)


Thanks a bunch boopme! Because I can now go into my flash drive w/o any antivirus warnings...I have yet to stick the drive into the laptop, but I will discuss this success and hopefully that would sway the owner of the laptop to proceed with your instructions. Could you wait before you close the topic? Or should I post another thread?

Edited by animesaint, 12 December 2009 - 03:31 PM.


#7 boopme

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Posted 13 December 2009 - 05:34 PM

Cool!! Remember it's important.
•Hold down the Shift key when inserting the drive until Windows detects it to keep autorun.inf from executing if it is present.
How do I get help? Who is helping me?For the time will come when men will not put up with sound doctrine. Instead, to suit their own desires, they will gather around them a great number of teachers to say what their itching ears want to hear....Become a BleepingComputer fan: Facebook




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