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The Vundo family of Trojans is one of the most common infections
we find on user's computers. This infection can cause popups that include
advertisements for rogue anti-spyware programs. Some common rogue antispyware
programs that are advertised include WinFixer, SysProtect and WinAntiSpyware.
Users are normally targeted by false positives, fake alerts, and warning of
infections on their computer. An example of this type of misleading advertisement
would be popups alerting users that they are infected with a blackworm virus.
The most common method of infection is through outdated versions of the Sun
Java platform; older versions are being exploited so it is important to firstly
make sure that your Java software is fully up to date. This infection is normally
detectable by users receiving popups when they use the Internet. Your antivirus
program might also notify you via an alert that you have a Vundo Trojan on
your computer.
The Vundo infection has evolved over time to include harder
and harder protection methods so that it cannot be easily removed. These methods
are random names, random autorun locations, random CLSIDs, and rootkits to
hide these locations from removal tools. Due to this, specialized tools have
been created in order to target this specific infection and remove it. The
following guide will explain how to use the tool, and hopefully rid your system
of this malware.
Automated Removal Instructions for Trojan.vundo and Virtumonde using Malwarebytes' Anti-Malware:
Print out these instructions as we may need to close every window that is
open later in the fix.
Before we can do anything we must first end the processes that belong to
Trojan.vundo and Virtumonde
so that it does not interfere with the cleaning procedure. To do this, download
the following file to your desktop.
Once it is downloaded, double-click on the rkill.com in
order to automatically attempt to stop any processes associated with
Trojan.vundo and Virtumonde
and other Rogue programs. Please be patient while the programs looks for various
programs and closes them. When it has finished, the black window will automatically
close. If your desktop was hidden, you should also now be able to view it
again. Do not reboot your computer at this point, or the programs
will start again.
Now you should download Malwarebytes' Anti-Malware, or MBAM, from the following
location and save it to your desktop:
Once downloaded, close all programs and Windows on your computer, including
this one.
Double-click on the icon on your desktop named mbam-setup.exe.
This will start the installation of MBAM onto your computer.
When the installation begins, keep following the prompts in order to continue
with the installation process. Do not make any changes to default settings
and when the program has finished installing and is at the last screen, make
sure you uncheck both of the Update Malwarebytes' Anti-Malware
and Launch Malwarebytes' Anti-Malware check
boxes. Then click on the Finish button. If Malwarebytes'
prompts you to reboot, please do not do so.
If you receive a code 2 error while installing Malwarebytes's, please press
the OK button to close these errors as we will resolve them
in future steps. The code 2 error will look similar to the image below.
As this infection deletes a core executable of Malwarebytes' we will need
to download a new copy of it and put it in the C:\program files\Malwarebytes'
Anti-Malware\ folder. To download the file please click on the following
link:
When your browser prompts you where to save it to, please save it to the C:\program
files\Malwarebytes' Anti-Malware\ folder. When downloading the file,
it will have a random filename. Please leave the filename the way it is as
it is important that it is not changed. You may want to write down the name
of the file as you will need to know the name in the next step.
Once the file has been downloaded, open the C:\program files\Malwarebytes'
Anti-Malware\ folder and double-click on the file you downloaded
in step 8. MBAM will now start and you will be at the main program screen
as shown below.
Before you can perform a scan, you must first update the program. To do
this click on the Update tab, and that at the new screen
click on the Check for Updates button. Malwarebytes' will
now check for new updates and download and install them as necessary. When
the update is completed, you will be prompted with a message stating either
that you already have the latest updates or that they have been updated. Either
way, you should now click on the OK button to continue.
Now click on the Scanner tab and make sure the the Perform
full scan option is selected. Then click on the Scan
button to start scanning your computer for
Trojan.vundo and Virtumonde
related files.
MBAM will now start scanning your computer for malware. This process can
take quite a while, so we suggest you go and do something else and periodically
check on the status of the scan. When MBAM is scanning it will look like the
image below.
When the scan is finished a message box will appear as shown in the image
below.
You should click on the OK button to close the message box and continue with
the
Trojan.vundo and Virtumonde
removal process.
You will now be back at the main Scanner screen. At this point you should
click on the Show Results button.
A screen displaying all the malware that the program found will be shown
as seen in the image below. Please note that the infections found may be different
than what is shown in the image.
You should now click on the Remove Selected button to remove
all the listed malware. MBAM will now delete all of the files and registry
keys and add them to the programs quarantine. When removing the files, MBAM
may require a reboot in order to remove some of them. If it displays a message
stating that it needs to reboot, please allow it to do so. Once your computer
has rebooted, and you are logged in, please continue with the rest of the
steps.
When MBAM has finished removing the malware, it will open the scan log and
display it in Notepad. Review the log as desired, and then close the Notepad
window.
You can now exit the MBAM program.
Your computer should now be free of the Trojan.vundo and Virtumonde program. If your current anti-virus solution let this infection through, you may want to consider purchasing the PRO version of Malwarebytes' Anti-Malware to protect against these types of threats in the future.
If you are still having problems with your computer after completing these instructions, then please follow the steps outlined in the topic linked below:
When it has completed downloading, double-clickVundoFix.exe to run it.
Click the Scan for Vundo button.
Once it's done scanning, click the Remove Vundo button.
You will now receive a prompt asking if you want to remove the files, click
the YES button. Once you click yes, your desktop will go blank as it
starts removing Vundo.
When completed, it will prompt that it will shutdown your computer, click
the OK button.
When the computer has shutdown, turn your computer back on.
The WinFixer and Vundo infection should now be removed from your computer.
If you are still having a problem then please perform the following
steps:
Note: This step should only be used if the instructions in the previous
steps did not remove the infection:
This can be done tapping the F8 key as soon as you start your computer
You will be brought to a menu where you can choose to boot into safe
mode.
Select safe mode with networking using your arrow keys on the keyboard
and then press enter.
When you computer reaches the desktop make sure you log in as the same
user which you had performed the previous steps,
Once you are logged into safe mode, double-click VirtumundoBeGone.exe
file you just downloaded and follow the instructions.
Exit when it has finished, and reboot back to normal mode.
The WinFixer and Vundo infection should now be removed from your computer.
Conclusion
If you are still having problems with your computer after completing these instructions, then please follow the steps outlined in the topic linked below:
BleepingComputer.com can not be held responsible for problems that may occur by using this information. If you would like help with any of these fixes, you can post a HijackThis log in our HijackThis Logs and Analysis forum.
Have a problem and would like to ask us for help? To learn how to ask your question Click Here!
Do you have popups or other malware infecting your computer? If so, Start Here!
Are you having trouble using this site? Then you should visit the New User Orientation Center!
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