Extra Antivirus is a rogue anti-spyware program from the same family as Virus Sweeper. Coincidentally, S!RI reports that another rogue with the same name was released at the same time that belongs to the family of rogues that include MS AntiSpyware 2009 and P Antispyware 09. Though this guide will remove both versions of Extra Antivirus, we will focus on the Virus Sweeper clone for the rest of this guide. I have, though, included images of both variants of Extra Antivirus in the screen shots below.

The virus sweeper family of rogues has the unique characteristic of using a legitimate service as a way of distributing its files. This service is Google Code, which is a repository for programmers to store their programming source code and projects. When the Trojan is executed it will first connect to Google Code in order to try and download the entire Extra Antivirus program. If these files are not available it will then try to install the program via other servers under the malware developer's control.

 

Extra Antivirus screen
For more screen shots of this infection click on the image above.
There are a total of 7 images you can view.

 

When the program is installed it will be set to automatically start on your computer. The installer then create numerous files that are used impersonate infections. These files, though, are harmless and cannot even be executed. Therefore, they pose no risk to your computer. The list of fake infections that are created on your computer are:

%UserProfile%\Recent\ANTIGEN.drv
%UserProfile%\Recent\cb.dll
%UserProfile%\Recent\CLSV.dll
%UserProfile%\Recent\energy.exe
%UserProfile%\Recent\exec.dll
%UserProfile%\Recent\fix.sys
%UserProfile%\Recent\PE.exe
%UserProfile%\Recent\PE.sys
%UserProfile%\Recent\ppal.tmp
%UserProfile%\Recent\snl2w.drv
%UserProfile%\Recent\tjd.exe
%UserProfile%\Recent\tjd.tmp

When the program executes it will scan your computer and display the files listed above and state they are infections, but will not remove them until you purchase the program. While the program is running you will also see nag screens or security warnings appear on your desktop. These screens will pop-up over your existing applications and will not go away until you acknowledge them. These warnings are a further attempt by Extra Antivirus to convince you that you are infected. The text of one of these alerts is:

System Alert
malicious applications, which can contain trojans, were found on your PC and need to be immediately removed. Click here to remove these potentially harmful items using Extra Antivirus.

If you are infected with Extra Antivirus, please do not purchase the program. Instead use the free removal guide below. If you have already purchased this product, we suggest you contact your credit card company to discuss disputing these charges as it is a scam.

 

Threat Classification:

• Information on Rogue Programs & Scareware

 

Advanced information:

View Extra Antivirus files.
View Extra Antivirus Registry Information.

 

Tools Needed for this fix:

• Malwarebytes Anti-Malware

 

Symptoms that may be in a HijackThis Log:

O4 - HKCU\..\Run: [Extra Antivirus] "C:\Documents and Settings\All Users\Application Data\7c69f0c\ExtraAV.exe" /s /d
O4 - HKCU\..\Run: [Extra Antivirus] "C:\Documents and Settings\Bleeping\Desktop\Install_1_1_.exe" /autorun

 

Guide Updates:

04/19/09 - Initial guide creation.
04/20/09 - Updated to include a new variant with the same name.

 

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Automated Removal Instructions for Extra Antivirus using Malwarebytes Anti-Malware:

 

1. Print out these instructions as we will need to close every window that is open later in the fix.
   
   
2. 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)
   
   


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 both the Update Malwarebytes Anti-Malware and Launch Malwarebytes Anti-Malware checked. Then click on the Finish button.
   
   
6. 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.
   
   
   
   
   
   
   
7. 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 Extra Antivirus related files.
   
   
8. 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.
   
   
   
   
   
   
   
9. 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 ExtraAntivirus removal process.
   
   
10. You will now be back at the main Scanner screen. At this point you should click on the Show Results button.
    
    
11. 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.
    
    
12. 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.
    
    
13. You can now exit the MBAM program.
    

Your computer should now be free of the ExtraAntivirus 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

 

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Associated Extra Antivirus Files:

c:\Documents and Settings\All Users\Application Data\7c69f0c
c:\Documents and Settings\All Users\Application Data\7c69f0c\57.mof
c:\Documents and Settings\All Users\Application Data\7c69f0c\ExtraAV.exe
c:\Documents and Settings\All Users\Application Data\7c69f0c\RootSys
c:\Documents and Settings\All Users\Application Data\7c69f0c\RootSys\vd952342.bd
c:\Documents and Settings\All Users\Application Data\RootSys
c:\Documents and Settings\All Users\Application Data\RootSys\extrav.cfg
%UserProfile%\Application Data\Extra Antivirus
%UserProfile%\Application Data\Extra Antivirus\Instructions.ini
%UserProfile%\Application Data\Microsoft\Internet Explorer\Quick Launch\Extra Antivirus.lnk
%UserProfile%\Desktop\Extra Antivirus.lnk
%UserProfile%\Recent\ANTIGEN.sys
%UserProfile%\Recent\cb.exe
%UserProfile%\Recent\delfile.drv
%UserProfile%\Recent\delfile.sys
%UserProfile%\Recent\exec.dll
%UserProfile%\Recent\fix.dll
%UserProfile%\Recent\hymt.exe
%UserProfile%\Recent\PE.dll
%UserProfile%\Recent\PE.sys
%UserProfile%\Recent\SICKBOY.sys
%UserProfile%\Recent\sld.sys
%UserProfile%\Recent\SM.sys
%UserProfile%\Recent\std.drv
%UserProfile%\Recent\tjd.exe
%UserProfile%\Start Menu\Extra Antivirus.lnk
%UserProfile%\Start Menu\Programs\Extra Antivirus.lnk
c:\Documents and Settings\All Users\Application Data\Tally software LTD
c:\Documents and Settings\All Users\Application Data\Tally software LTD\Extra Antivirus
c:\Documents and Settings\All Users\Application Data\Tally software LTD\Extra Antivirus\BASE
c:\Documents and Settings\All Users\Application Data\Tally software LTD\Extra Antivirus\DELETED
c:\Documents and Settings\All Users\Application Data\Tally software LTD\Extra Antivirus\LOG
c:\Documents and Settings\All Users\Application Data\Tally software LTD\Extra Antivirus\LOG\20090420152913215.log
c:\Documents and Settings\All Users\Application Data\Tally software LTD\Extra Antivirus\SAVED
%UserProfile%\Desktop\Install_1_1_.exe

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 Extra Antivirus Windows Registry Information:

HKEY_CLASSES_ROOT\CLSID\{3F2BBC05-40DF-11D2-9455-00104BC936FF}
HKEY_CLASSES_ROOT\ExtraAV.DocHostUIHandler
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\User Agent\Post Platform "889809903"
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run "Extra Antivirus"
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\uninstall\Extra Antivirus 3.0
HKEY_CURRENT_USER\Software\Tally software LTD\Extra Antivirus

 

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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.