Remove CoreGuard Antivirus 2009 (Removal Instructions)

  • April 29, 2009
  • 06:59 PM
  • Read 22,177 times

What is CoreGuard Antivirus 2009?

CoreGuard Antivirus 2009 is a rogue anti-spyware program discovered by security researcher S!RI, that uses an interesting trick in order to protect itself. This trick is to uninstall legitimate anti-malware programs when CoreGuard detects they are installed. When CoreGuard Antivirus 2009 starts it will examine the Windows Registry key that contains the list of programs that Windows knows how to uninstall from your computer. If it detects certain programs installed it will display the following message and then start the program's uninstall process:

There is unauthorized antivirus software detected on your computer. It is recommended you to remove it, otherwise it could conflict with CoreGusard <sic> Antivirus 2009.

The anti-malware programs that it detects, and attempts to uninstall include:

  • MalwareBytes' Anti-malware
  • F-Secure
  • NOD32
  • Avast
  • AntiVir
  • AVG
  • Norton Internet Security

  • CoreGuard Antivirus 2009 main screen
  • CoreGuard Antivirus scanning screen
  • Scan Summary
  • CoreGuard installing
  • False security alert
  • Warning that MalwareBytes' is installed

CoreGuard will also be configured to start whenever you log into Windows. When it runs it will automatically perform a scan of your computer, which will find a variety of infections that it will not let you remove until you purchase the program. These infections, though, are either fake or nonexistent and can be ignored. While running, it will also display numerous alerts and nag screens in order to convince you to purchase the program. Some examples of the alerts you may see are:

User's activity loggers detected!
It's strongly recommended to remove detected threats right now!

Most of the viruses and worms on your PC because of visiting pornosites or warez/torrent sites.




These alerts are also disruptive to your normal applications because they will be displayed over your running applications and can't be minimized. The only way to get rid of these alerts is to acknowledge them.

If you find that you are infected with CoreGuard Antivirus 2009, then please use the remove guide shown below in order to remove it and any associated malware for free.

CoreGuard Antivirus 2009 Removal Options

Self Help Guide

This guide is intended for advanced computer users only. Please ensure your data is backed up before proceeding. If you’re uncomfortable making changes to your computer, consider having a professional help clean your computer or ask in the forums.
  1. Print out these instructions as we will need to close every window that is open later in the fix.

  2. At this point you should download Malwarebytes Anti-Malware, or MBAM, to scan your computer for any any infections or adware that may be present. Please download Malwarebytes from the following location and save it to your desktop:

    Malwarebytes Anti-Malware Download Link (Download page will open in a new window)

  3. Once downloaded, close all programs and Windows on your computer, including this one.

  4. Double-click on the icon on your desktop named mbam-setup.exe. This will start the installation of MBAM onto your computer.

  5. 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 Launch Malwarebytes Anti-Malware checked. Then click on the Finish button. If MalwareBytes prompts you to reboot, please do not do so.

  6. MBAM will now start and you will be at the main screen as shown below.

    Malwarebytes Anti-Malware

    Please click on the Scan Now button to start the scan. If there is an update available for Malwarebytes it will automatically download and install it before performing the scan.

  7. MBAM will now start scanning your computer for malware. This process can take quite a while, so we suggest you do something else and periodically check on the status of the scan to see when it is finished.

    Malwarebytes Anti-Malware

  8. When MBAM is finished scanning it will display a screen that displays any malware that it has detected. Please note that the infections found may be different than what is shown in the image below due to the guide being updated for newer versions of MBAM.

    MalwareBytes Scan Results

    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.

  9. You can now exit the MBAM program.

Your computer should now be free of the CoreGuard Antivirus 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.

View Associated CoreGuard Antivirus 2009 Files

c:\Program Files\Coreguard Antivirus 2009 c:\Program Files\Coreguard Antivirus 2009\blacklist.cga c:\Program Files\Coreguard Antivirus 2009\core.cga c:\Program Files\Coreguard Antivirus 2009\CoreExt.dll c:\Program Files\Coreguard Antivirus 2009\Coreguard 2009.exe c:\Program Files\Coreguard Antivirus 2009\firewall.dll c:\Program Files\Coreguard Antivirus 2009\Uninstall.exe c:\Program Files\Coreguard Antivirus 2009\Help c:\Program Files\Coreguard Antivirus 2009\Help\reg.html c:\Program Files\Coreguard Antivirus 2009\Help\support.png c:\Program Files\Coreguard Antivirus 2009\Help\unreg.html c:\Program Files\Coreguard Antivirus 2009\Help\images c:\Program Files\Coreguard Antivirus 2009\Help\images\delete.png c:\Program Files\Coreguard Antivirus 2009\Help\images\info.png c:\Program Files\Coreguard Antivirus 2009\Help\images\plus_circle.png c:\Program Files\Coreguard Antivirus 2009\Help\images\tick.png c:\Program Files\Coreguard Antivirus 2009\Help\images\warn.png c:\Program Files\Coreguard Antivirus 2009\Help\images\buttons c:\Program Files\Coreguard Antivirus 2009\Help\images\buttons\offline.gif c:\Program Files\Coreguard Antivirus 2009\Help\images\buttons\online.gif c:\Program Files\Coreguard Antivirus 2009\Help\images\buttons\voice.gif %UserProfile%\Application Data\Microsoft\Internet Explorer\Quick Launch\Coreguard 2009.lnk %UserProfile%\Desktop\Coreguard 2009.lnk %UserProfile%\Start Menu\Programs\Coreguard Antivirus 2009 %UserProfile%\Start Menu\Programs\Coreguard Antivirus 2009\Coreguard 2009.lnk %UserProfile%\Start Menu\Programs\Coreguard Antivirus 2009\Uninstall Coreguard Antivirus 2009.lnk

View Associated CoreGuard Antivirus 2009 Registry Information

HKEY_CURRENT_USER\Software\CoreGuard HKEY_CLASSES_ROOT\CLSID\{5E2121EE-0300-11D4-8D3B-444553540000} HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Coreguard Antivirus 2009 HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run "Coreguard Antivirus 2009"

This is a self-help guide. Use at your own risk. 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.

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