WinDefender 2009 is the successor to to rogue anti-spyware
program named WinDefender
2008. WinDefender is advertised through the use of Trojans that display
fake security alerts stating that your computer is infected or being attacked.
These alerts then state that you should download and install WinDefender 2009
in order to protect yourself. Once WinDefender is installed, the program will
be configured to start automatically when the computer starts. Once running,
WinDefender 2009 will scan your computer and display a variety of malware that
cannot be removed unless you first purchase the software. The funny thing is
that most of the files that WinDefender finds will actually be the Trojans that
installed it in the first place.
While running, WinDefender will also display pop-ups stating that your computer
is infected and if you would like to purchase a program that can help you. This
is just an advertisement that is currently promoting Total
Secure 2009. This pop-up should be closed, and ignored, as it is just a
further tactic to try and take your hard earned money.
WinDefender 2009 screen shot
For more screen shots of this infection click on the image above.
There are a total of 2 images you can view.
The below guides will walk you through removing WinDefender 2009 and any associated
malware that may have been installed with it.
View WinDefender 2009 files.
View WinDefender 2009 Registry Information.
Entries for this program found in the Uninstall Programs control panel:
Tools Needed for this fix:
Symptoms that may be in a HijackThis Log:
O4 - HKCU\..\Run: [WinDefender2009] C:\Program Files\WinDefender\windef.exe
10/30/08 - Initial guide creation.
Automated Removal Instructions for WinDefender 2009 using Malwarebytes Anti-Malware:
- Print out these instructions as we will need to close every window that
is open later in the fix.
- Download Malwarebytes Anti-Malware, or MBAM, from the following location
and save it to your desktop:
Malwarebytes Anti-Malware Download Link (Download page will open in a new window)
- Once downloaded, close all programs and Windows on your computer, including
- 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, make sure you leave both the
Update Malwarebytes Anti-Malware and Launch
Malwarebytes Anti-Malware checked. Then click on the Finish
- MBAM will now automatically start and you will see a message stating that
you should update the program before performing a scan. As MBAM will automatically
update itself after the install, you can press the OK button
to close that box and you will now be at the main program as shown below.
- On the Scanner tab, make sure the the Perform
full scan option is selected and then click on the Scan
button to start scanning your computer for
- 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
- When the scan is finished a message box will appear as shown in the image
You should click on the OK button to close the message box and continue with
the Win Defender 2009 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
- 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
- You can now exit the MBAM program.
Your computer should now be free of the Win Defender 2009 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:
Preparation Guide For Use Before Using Malware Removal Tools and Requesting Help
Associated WinDefender 2009 Files:
%UserProfile%\Start Menu\Programs\WinDefender 2009.lnk
File Location Notes:
%UserProfile% refers to the current user's profile folder. By default, this is C:\Documents and Settings\<Current User> for Windows 2000/XP, C:\Users\<Current User> for Windows Vista/7/8, and c:\winnt\profiles\<Current User> for Windows NT.
Associated WinDefender 2009 Windows Registry Information:
This is a self-help guide. Use at your own risk.
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 ask for malware removal assistance in our Virus, Trojan, Spyware, and Malware Removal Logs forum.
If you have any questions about this self-help guide then please post those questions in our Am I infected? What do I do? and someone will help you.