How To Remove MS Antivirus - (Uninstall Guide)
Article by George Norman
On 13 Nov 2009
MS Antivirus (also known as MS Antivirus 2008) is rogue antivirus application that hails from the same family of rogues that gave us Vitae Antivirus 2008, Vista Antivirus 2008 and XP Antivirus. The main things you need to know about MS Antivirus is this: it is not a genuine security software solution. The other bits and pieces you need to know about MS Antivirus are:
  • To make its way onto your computer, MS Antivirus uses two distribution methods. The first distribution method is specially crafted webpages – on these webpages MS Antivirus is presented as a genuine, legitimate and properly good security software application in a ploy to get the user to click the download button. The second distribution method is a even more malicious – Trojans (like Zlob or Vundo). When the user visits a certain webpage (usually adult site) and wants to view a video, he is informed that a codec/Flash update is needed to play the video. He is invited to download a codec/Flash update, but this is actually the Trojan.
  • After MS Antivirus is installed on a system, the rogue will perform fake system scans and will detect numerous phony infections. Then it will ask the user to purchase a license to remove the infection. If you feel like spending money on something, spend it on a genuine security software application. Spending it on something like MS Antivirus is a waste of money. What you should do is remove MS Antivirus immediately, not purchase a license.




Automatic removal guide
Step 1. If you have a printer, make sure to print out this tutorial. If you do not have a printer, save this tutorial, go out to a copy center and print it out there. If you do not have a printer and do not want to go out, then use the pen and paper method: grab a pen and a piece of paper and write down the instruction presented in the steps below. In the process of eliminating MS Antivirus from your machine you will need to shut down the browser. And since this will also shut down the tutorial, you need to know what you should do next.

Step 2. You will have to install Malwarebytes’ Anti-Malware. In this regard you need to download the software’s setup executable. Just click this link and save the .exe file on your computer (preferably on your desktop).

Step 3. Double click the Malwarebytes’ Anti-Malware setup executable. It should be on the desktop under the name mbam-setup. This will launch the installation process. If you already know how to install a piece of software, proceed to step 4. If you do not know how to do this, we’ll walk you though it all:



- The Select Setup Language window should have popped up. By default, the language in which the software will be installed is set to English, but you can change this. The software provides support for 30+ languages. After selecting the language of your choice, click OK. It would be best to just leave it set to English though.



- The Malwarebytes’ Anti-Malware Setup Wizard will now popup. Just click Next.



- You will be presented with the License Agreement. Click I accept the agreement and then click Next. If you do not accept the agreement you will not be able to continue.



- Keep clicking Next until you get to the Ready to install window. Now click Install. After the installation process completes click Finish. Do not uncheck the boxes next to Update Malwarebytes’ Anti-Malware or Launch Malwarebytes’ Anti-Malware.















Step 4. The Malwarebytes’ Anti-Malware application will launch automatically. The Perform quick scan option should be checked by default – if it isn’t then check it and then click Scan. You are well advised to close all running apps before clicking scan. This will ensure the scan for MS Antivirus will complete swiftly.



Malwarebytes’ Anti-Malware will start scanning your files for signs of MS Antivirus. This may take a while, so be patient. It all depends on how powerful your computer is and how many files Malwarebytes’ Anti-Malware has to scan.



When the scan for MS Antivirus is complete you will be presented with a notification box. Click OK to close the notification box and go to the main Scanner screen. Click Show Results and you will be presented with a list of all the infected files Malwarebytes’ Anti-Malware has detected.





Step 5. Click Remove Selected and Malwarebytes’ Anti-Malware will remove all the infected files it has detected. It may be necessary to restart your computer in order to remove some of these files. After Malwarebytes’ Anti-Malware is done removing all the infected files, it will open Notepad and present the scan log to you. You can review the log at your leisure – save it If you want.



Step 6. Close Malwarebytes’ Anti-Malware and you’re done. No traces of MS Antivirus should be left on your computer.

Manual removal guide

MS Antivirus stores data in these directory paths:

%ProgramFiles%/MSA
%ProgramFiles%/MSX
%ProgramFiles%/MS Antivirus


Using Task Manager, shut down and remove the processes:

MSx.exe
MSA.exe
MSASetup.exe


Access the Windows Registry Editor and delete the following registry keys:

HKEY_CURRENT_USER/Software/AntiVirus
HKEY_CURRENT_USER/Software/MSA
HKEY_CLASSES_ROOT/.key
HKEY_CURRENT_USER/Software/Microsoft/Windows/CurrentVersion/Run "Antivirus"
HKEY_LOCAL_MACHINE/SOFTWARE/Microsoft/Windows/CurrentVersion/Run "Antivirus"


Locate and delete the following files:

c:/Program Files/MSA
c:/Program Files/MSA/MSA.cpl
c:/Program Files/MSA/MSA.exe
c:/Program Files/MSA/msa0.dat
c:/Program Files/MSA/msa1.dat
c:/WINDOWS/system32/MSA.cpl
%UserProfile%/Desktop/MSAntivirus.lnk


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