Remove BitDefender 2011 (Uninstall Guide)

  • April 20, 2011
  • 06:47 PM
  • Read 21,451 times

What is BitDefender 2011?

BitDefender 2011 is a rogue anti-spyware program from the same family as E-Set Antivirus 2011. This computer infection is named after, but should not be confused with, the legitimate antivirus programs program from BitDefender. This rogue is promoted through web sites that pretend to be online anti-malware scanners, but are instead advertisements that when finished state your computer is infected. This fake scanner will then prompt you to download and install BitDefender 2011 on to your computer in order to protect it. It should be noted that these fake online scanners are just an advertisement that have absolutely no way of knowing what is running on your computer. In fact they will show the same infection results to anyone who visits the page. Therefore, do not be concerned by what these online scanners show you.

  • BitDefender 2011 screen shot
  • Scanning screen
  • Scan summary
  • Internet Explorer Hijack
  • Task Manager with Infected column
  • Virus Detected Alert

When BitDefender 2011 is installed it will be configured to start automatically when Windows starts. Once started it will perform a scan on your computer and when finished state that it is infected with a variety of malware. If you attempt to use the program to remove any of the malware it finds, though, it will state that you first need to purchase the program before it will remove anything. This is a complete scam as the scan results are all fake and many of the listed files are actually legitimate files that if removed could cause problems for your computer. Therefore, do not manually remove any of the items it displays in its scan results.

While BitDefender 2011 is running it will also display alerts and warnings that attempt to scare you into thinking your computer has a serious computer security problem. These alerts will state that personal information is being stolen, active malware has been found, or that you are using unlicensed software. The text of some of these alerts are:

Virtumonde is an adware program that tends to monitor your Internet browsing habits and may display targeted advertisements onto your computer screen. Virtumonde may also create a malicious DLL file in order to log your keystrokes and send the recorded information to a third party website. Virtumonde is an unwanted application and recommended to be removed.

Warning! Identity theft attempt detected!
Attacker IP: <random IP address>
Attack Target: Microsoft Corp. Keys
Description: Remote host tries to get access to your personal information.

Warning! New virus detected!
Threat Detected: Keylogger.iSnake.Pro
Infected File: C:\WINDOWS\system32\asr_ldm.exe

BitDefender 2011 also creates a new column in the Windows Task Manager that will display the word Infected next to various processes. It does this to further scare you into thinking that you have malicious processes running on your computer.

BitDefender 2011 will also attempt to protect itself by not allowing you to run various programs that may assist in removing it. When you attempt to run these types of programs, BitDefender 2011 will terminate it and then state that the file is infected. The text of the infection alert is:

Warning! Active Virus Detected!
Threat Detected: Backdoor.Poison.BQA
Infected file: <random file name>
Action taken: Application Blocked
Description: This backdoor arrives as attachment to email messages spammed by another malware or malicious user. This is a backdoor component of the Darkmoon RAT (Remote Administration Tool), via this backdoor hackers attempt to control your PC.

Just like the fake scan results, all of the above security alerts are fake and only being shown to scare you into purchasing the program.

Last, but not least, BitDefender 2011 will hijack Internet Explorer, FireFox, Chrome, or Safari so that a different program is launched the displays a security alert. The text of the alert is:

About Internet Explorer Emergency Mode
Your PC is infected with malicious software and browse couldn't be launched

You may use Internet Explorer in Emergency mode - internal service browser of Microsoft Windows system with limited usability.

Notice: Some sites refuse connection with Internet Explorer in Emergency Mode. In such case system warning page will be showed to you.

Just like the fake infection warnings, alerts, and scan results, these browser messages are all fake and your normal browsers will be restored when you follow the steps in the guide below.

Without a doubt, BitDefender 2011 was created for one reason; to scare you into thinking your computer has a security problem so that you will then purchase the program. It goes without saying that you should not purchase this program, and if you already have, please contact your credit card company to dispute the charge because the program is a scam and a computer infection. Finally, to remove BitDefender 2011 and any related malware, please you use the removal guide below.

BitDefender 2011 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 may need to close every window that is open later in the fix.

  2. Reboot your computer into Safe Mode with Networking. To do this, turn your computer off and then back on and immediately when you see anything on the screen, start tapping the F8 key on your keyboard. Eventually you will be brought to a menu similar to the one below:

    MalwareBytes Anti-Malware Screen

    Using the arrow keys on your keyboard, select Safe Mode with Networking and press Enter on your keyboard. If you are having trouble entering safe mode, then please use the following tutorial: How to start Windows in Safe Mode

    Windows will now boot into safe mode with networking and prompt you to login as a user. Please login as the same user you were previously logged in with in the normal Windows mode. Then proceed with the rest of the steps.

  3. It is possible that the infection you are trying to remove will not allow you to download files on the infected computer. If this is the case, then you will need to download the files requested in this guide on another computer and then transfer them to the infected computer. You can transfer the files via a CD/DVD, external drive, or USB flash drive.

  4. Before we can do anything we must first end the processes that belong to BitDefender 2011 so that it does not interfere with the cleaning procedure. To do this, please download RKill to your desktop from the following link.

    RKill Download Link - (Download page will open in a new tab or browser window.)

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

  5. Once it is downloaded, double-click on the iExplore.exe icon in order to automatically attempt to stop any processes associated with BitDefender 2011 and other Rogue programs. 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 you can continue with the next step. If you get a message that RKill is an infection, do not be concerned. This message is just a fake warning given by BitDefender 2011 when it terminates programs that may potentially remove it. If you run into these infections warnings that close RKill, a trick is to leave the warning on the screen and then run RKill again. By not closing the warning, this typically will allow you to bypass the malware trying to protect itself so that RKill can terminate BitDefender 2011 . So, please try running RKill until the malware is no longer running. You will then be able to proceed with the rest of the guide. Do not reboot your computer after running RKill as the malware programs will start again.

    If you continue having problems running RKill, you can download the other renamed versions of RKill from the RKill download page. Both of these 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.

  6. 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)

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

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

  9. 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.

  10. 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.

  11. 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

  12. 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.

  13. You can now exit the MBAM program. If Malwarebytes did not prompt you to reboot your computer, please do so that you are back in normal mode.

  14. As many rogues and other malware 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 BitDefender 2011 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 BitDefender 2011 Files

c:\Program Files\BitDefender 2011\ c:\Program Files\BitDefender 2011\bitdefender.exe c:\Documents and Settings\All Users\Start Menu\BitDefender 2011\ c:\Documents and Settings\All Users\Start Menu\BitDefender 2011\BitDefender 2011.lnk %AllUsersProfile%\Start Menu\BitDefender 2011\Uninstall.lnk %UserProfile%\Desktop\BitDefender 2011.lnk %Temp%\srvED4.ini %Temp%\srvED4.tmp

View Associated BitDefender 2011 Registry Information

HKEY_CURRENT_USER\Software\EVAEC2 HKEY_CURRENT_USER\Software\MonEC2 HKEY_USERS\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings "ProxyEnable" = '0' HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run "BitDefender 2011" = 'C:\Program Files\BitDefender 2011\bitdefender.exe' HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\chrome.exe "Debugger" = 'msiexecs.exe -sb' HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\firefox.exe "Debugger" = 'msiexecs.exe -sb' HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\iexplore.exe "Debugger" = 'msiexecs.exe -sb' HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\opera.exe "Debugger" = 'msiexecs.exe -sb' HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\safari.exe "Debugger" = 'msiexecs.exe -sb' HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\User Agent\Post Platform "WinNT-EVI 21.04.2011"

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.

search guides


Remember Me
Sign in anonymously