Remove Antivirus Scan (Uninstall Guide)

  • December 17, 2010
  • 05:59 PM
  • Read 90,000 times

What is Antivirus Scan?

Skip this and learn how to remove Antivirus Scan!

Antivirus Scan is a rogue anti-spyware program from the same family as Antivirus Action. When this infection is installed on your computer it will be configured to start automatically. Once started it will scan your computer and list numerous infections in the scan results. If you attempt to remove any of these so-called infections it will state that you first need to purchase the program in order to remove anything. As these scan results are all fake, please do not purchase this program based upon anything it states.

  • Antivirus Scan screen shot
  • Threat information
  • Browser hijack
  • Fake security warning
  • Infiltration Alert

While running, Antivirus Scan will also display fake security alerts on your computer. These security alerts are used to make you think that there are various security problems on your computer. The text of some of these alerts include:

Windows Security Alert
Windows reports that computer is infected. Antivirus software helps to protect your computer against viruses and other security threats. Click here for the scan your computer. Your system might be at risk now.

Antivirus software alert
Infiltration alert
Your computer is being attacked by an Internet virus. It could be password-stealing attack, a trojan-dropper or similar.

Antivirus Scan will also configure your computer to use a proxy server so that it hijackthis your web browser to display warnings when you browse the web. This warning is:

Internet Explorer Warning - visiting this web site may harm your computer!
Most likely causes:
- The website contains exploits that can launch a malicious code on your computer
- Suspicious network activity detected
- There might be an active spyware running on your computer

Just like the fake scan results, these fake alerts and browser hijack messages are just another tactic to have you purchase the program.

As you can see, the warnings issued by this program are all fake, and once you realize that, the alerts become more of a nuisance rather than a concern. Therefore, do not purchase Antivirus Scan for any reason, and if you already have, please contact your credit card company and state that the program is a computer infection and a scam and that you would like to dispute the charge. To remove this infection and related malware, please follow the steps in the guide below.

Self Help Guide

This guide is intended for advanced computer users only. Please ensure your data is backed up before proceeding. If you are uncomfortable making changes to your computer or following these stpes, do not worry! Instead you can get free one-on-one help by asking in the forums.
1

This removal guide may appear overwhelming due to the amount of the steps and numerous programs that will be used. It was only written this way to provide clear, detailed, and easy to understand instructions that anyone can use to remove this infection for free. Before using this guide, we suggest that you read it once and download all necessary tools to your desktop. After doing so, please print this page as you may need to close your browser window or reboot your computer.

2

Reboot your computer into Safe Mode with Networking using the instructions for your version of Windows found in the following tutorial:

How to start Windows in Safe Mode

When following the steps in the above tutorial, select Safe Mode with Networking rather than just Safe Mode. When the computer reboots into Safe Mode with Networking make sure you login with the username you normally use. When you are at your Windows desktop, please continue with the rest of the steps.

3

This infection changes your Windows settings to use a proxy server that will not allow you to browse any pages on the Internet with Internet Explorer or update security software. Regardless of the web browser you use, for these instructions we will first need need to fix this problem so that we can download the utilities we need to remove this infection.

Please start Internet Explorer, and when the program is open, click on the Tools menu and then select Internet Options as shown in the image below.

Internet Explorer Tools Menu

4

You should now be in the Internet Options screen as shown in the image below.

Internet Options screen

Now click on the Connections tab as designated by the blue arrow above.

5

You will now be at the Connections tab as shown by the image below.

Internet Options connections tab

Now click on the Lan Settings button as designated by the blue arrow above.

6

You will now be at the Local Area Network (LAN) settings screen as shown by the image below.

Proxy Settings screen

Under the Proxy Server section, please uncheck the checkbox labeled Use a proxy server for your LAN. Then press the OK button to close this screen. Then press the OK button to close the Internet Options screen. Now that you have disabled the proxy server you will be able to browse the web again with Internet Explorer.

7

To terminate any programs that may interfere with the removal process we must first download the Rkill program. Rkill will search your computer for active malware infections and attempt to terminate them so that they wont interfere with the removal process. To do this, please download RKill to your desktop from the following link.

img
Rkill

When at the download page, click on the Download Now button labeled iExplore.exe. When you are prompted where to save it, please save it on your desktop.

8

Once it is downloaded, double-click on the iExplore.exe icon in order to automatically attempt to stop any processes associated with Antivirus Scan and other malware. Please be patient while the program looks for various malware programs and ends them. When it has finished, the black window will automatically close and a log file will open. Please review the log file and then close so you can continue with the next step. If you have problems running RKill, you can download the other renamed versions of RKill from the rkill download page. All of the files are renamed copies of RKill, which you can try instead. Please note that the download page will open in a new browser window or tab.

Do not reboot your computer after running RKill as the malware programs will start again.

9

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:

img
Malwarebytes Anti-Malware
10

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

11

Double-click on the icon on your desktop named mbam-setup-bc.1878-2.2.1.1043.exe. This will start the installation of MBAM onto your computer.

12

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.

13

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

Malwarebytes Anti-Malware

We now need to enable rootkit scanning to detect the largest amount of malware that is possible with MalwareBytes. To do this, click on the Settings section at the top of the MalwareBytes application and you wil be brought to the general settings section.

Now click on the Detection and Protection settings category on the left sidebar. You will now be shown the settings MalwareBytes will use when scanning your computer.

Malwarebytes Anti-Malware Detection and Protection Settings Page

At this screen, please put a checkmark in the option labaled Scan for rootkits. If you do not see this option, please make sure you are using the latest version of MalwareBytes.

14

Now that you have enabled rootkit scanning, click on the Scan button to go to the scan screen.

Malwarebytes Anti-Malware Scan Screen

Make sure Threat Scan is selected and then click on the Start Scan button. If there is an update available for Malwarebytes it will automatically download and install it before performing the scan.

15

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

16

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 seleted 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.

17

You can now exit the MBAM program.

18

If your computer is still in Safe Mode with Networking, you can reboot your computer back to normal mode. Once your computer is rebooted and you are back at the desktop, you can proceed with the rest of the instructions.

19

Now you should download HitmanPro from the following location and save it to your desktop:

img
HitmanPro

When you visit the above page, please download the version that corresponds to the bit-type of the Windows version you are using.

20

Once downloaded, double-click on the file named HitmanPro.exe (for 32-bit versions of Windows) or HitmanPro_x64.exe (for 64-bit versions of Windows). When the program starts you will be presented with the start screen as shown below.

HitmanPro Start Screen

Now click on the Next button to continue with the scan process.

21

You will now be at the HitmanPro setup screen. If you would like to install the 30 day trial for HitmanPro, select the Yes, create a copy of HitmanPro so I can regularly scan this computer (recommended) option. Otherwise, if you just want to scan the computer this one time, please select the No, I only want to perform a one-time scan to check this computer option.

Kickstart Setup Options

Once you have selected one of the options, please click on the Next button.

22

HitmanPro will now begin to scan your computer for infections. When it has finished it will display a list of all the malware that the program found as shown in the image below. Please note that the infections found may be different than what is shown in the image.

MalwareBytes Scan Results

You should now click on the Next button to have HitmanPro remove the detected infections. When it is done you will be shown a Removal Results screen that shows the status of the various infections that were removed. At this screen you should click on the Next button and then if prompted you should click on the Reboot button. If HitmanPro does not prompt you to reboot, please just click on the Close button.

Once your computer has has restarted or you pressed the Close button, you should now be at your Windows desktop.

23

As many malware and unwanted programs are installed through vulnerabilities found in out-dated and insecure programs, it is strongly suggested that you use Secunia PSI to scan for vulnerable programs on your computer. A tutorial on how to use Secunia PSI to scan for vulnerable programs can be found here:

How to detect vulnerable and out-dated programs using Secunia Personal Software Inspector

 

Your computer should now be free of the Antivirus Scan program. If your current security solution allowed this program on your computer, you may want to consider purchasing the full-featured 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 link ed below:

Preparation Guide For Use Before Using Malware Removal Tools and Requesting Help
img

Malwarebytes Anti-Malware

Purchase the full-featured version of Malwarebytes Anti-Malware, which includes real-time protection, scheduled scanning, and website filtering, to protect yourself against these types of threats in the future!

View Associated Antivirus Scan Files

%Temp%\<random>\ %Temp%\<random>\<random>.exe

File Location Notes:

%Temp% refers to the Windows Temp folder. By default, this is C:\Windows\Temp for Windows 95/98/ME, C:\DOCUMENTS AND SETTINGS\<Current User>\LOCAL SETTINGS\Temp for Windows 2000/XP, and C:\Users\<Current User>\AppData\Local\Temp in Windows Vista, Windows 7, and Windows 8.

View Associated Antivirus Scan Registry Information

HKEY_CURRENT_USER\Software\qnpn7rjv93lf HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Download "RunInvalidSignatures" = '1' HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\PhishingFilter "Enabled" = '0' HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings "ProxyOverride" = '<local>' HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings "ProxyServer" = 'http=127.0.0.1:59274' HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings "ProxyEnable" = '1' HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Associations "LowRiskFileTypes" = '.exe' HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run "<random>" HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Download "CheckExeSignatures" = 'no'

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.

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