Fake Bitdefender 2011 Antivirus

Also Known As: Rogue Bitdefender Antivirus
Damage level: High

What is Fake Bitdefender 2011 Antivirus?

Fake Bitdefender Antivirus 2011 is a scam released by Internet criminals to trick computer users into purchasing their fake computer security program. They name their rogue program after a legitimate program, and in doing so, try to fool people into buying a full version.

These fake programs are often distributed through fake advertisements. When the user enters a website, a pop-up ad appears reporting that it is scanning your computer.

After this 'scan', the ad states that your PC is in danger and that you need to install Bitdefender Antivirus 2011 in order to remove the threats.

bitdefender 2011 fake antivirus program

Fake Bitdefender Antivirus 2011 takes command of your computer, starting on each system start-up, and imitating a real security scan. After the 'scan', you are presented with a large list of supposed infections, and in order to remove them, the program encourages you to purchase a license to do so.

This fake antivirus program also displays security messages to further scare you into purchasing a non existent license. If you observe the security warning messages listed below and your downloaded antivirus program appears as the screenshot provided, then your computer is infected with Fake Bitdefender Antivirus 2011.

You should remove this fake program from your computer immediately, as its sole purpose is to steal money from your credit card. If by mistake you have already purchased this fake antivirus program, contact your credit card company and explain that you have been tricked into purchasing a fake license for a bogus computer security program.

You should show extreme caution when choosing a security program for your computer, as the Internet is full of fakes. The real version of this program does not perform fake security scans or flood your desktop with false security warning messages.

Closely study the screenshot of this program, and if you feel that it looks similar, it is likely that your computer is infected with Fake Bitdefender Antivirus 2011. Use this removal guide to help you eliminate this rogue clone.

The following fake security warning messages will be displayed by Fake Bitdefender Antivirus 2011:

"Warning! Virtumonde is an adware program that monitors your Internet browsing habits and may display targeted advertisements on 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! Active Virus Detected! Threat Detected: Backdoor.Poison.BQA Infected file: 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."

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

Ignore these messages and remove this fake antivirus program from your computer.

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Quick menu:

Fake Bitdefender Antivirus 2011 removal

Try entering a retrieved Fake Bitdefender antivirus 2011 license key:  BKI14-HJP10-IKO78-OBK894-XYL77 (you should enter this code in an activation window). If it works, this fake antivirus program will be disabled and you will be able to remove it without further interventions.

Manual Fake Bitdefender Antivirus 2011 removal:

1. Start your computer in Safe Mode. Click Start, click Shut Down, click Restart, click OK.

During your computer starting process press the F8 key on your keyboard multiple times until you see the Windows Advanced Option menu, then select Safe Mode with Networking from the list.{jcomments on}


Video showing how to start Windows in "Safe Mode with Networking":

Windows XP:

Windows 7:

Windows 8:

2. Open Internet Explorer, click Tools and select Internet Options. Select "Connections".





3.Click LAN settings, if 'Use a proxy server for your LAN' is checked, uncheck it and press OK.







 4.  Download HijackThis and save it to your desktop. Some malicious programs are able to block HijackThis, so when you click the download link, in the Save dialog, rename HijackThis.exe to iexplore.exe and only then click the Save button.

After saving the file to your desktop, double click it. In the main HijackThis window click the “Do a system scan only” button. Select the following entry (place a tick at the left of the entry):

O4 - HKCU\..\Run: [BitDefender 2011] C:\Program Files\BitDefender 2011\bitdefender.exe

After selecting the required entries, click "Fix Checked". After this procedure you can close HijackThis and proceed to the next removal step.

5. Download and install anti-spyware software to completely remove the infection.

Other tools known to remove Fake Bitdefender Antivirus 2011:

If you are unable to remove Fake Bitdefender Antivirus 2011, you can use these manual removal instructions. Use them at your own risk, since if you do not have strong computer knowledge, you could harm your operating system.

Use them only if you are an experienced computer user. (Instructions on how to end processes, remove registry entries...)

End these  Fake Bitdefender Antivirus 2011 processes:


Remove these Fake Bitdefender Antivirus 2011 registry entries:

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"

Delete theseFake Bitdefender Antivirus 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


The fake antivirus programs (also known as "rogue antivirus programs" or "scareware") are applications that tries to lure computer users into paying for their non-existent full versions to remove the supposedly detected security infections (although the computer is actually clean). These bogus programs are created by cyber criminals who design them to look as legitimate antivirus software. Most commonly rogue antivirus programs infiltrate user's computer using poop-up windows or alerts which appear when users surf the Internet. These deceptive messages trick users into downloading a rogue antivirus program on their computers. Other known tactics used to spread scareware include exploit kits, infected email messages, online ad networks, drive-by downloads, or even direct calls to user's offering free support.

A computer that is infected with a fake antivirus program might also have other malware installed on it as rogue antivirus programs often are bundled with Trojans and exploit kits. Noteworthy that additional malware that infiltrates user's operating system remains on victim's computer regardless of whether a payment for a non-existent full version of a fake antivirus program is made. Here are some examples of fake security warning messages that are used in fake antivirus distribution:

Fake pop-up used in rogue antivirus distribution example 1

Fake pop-up used in rogue antivirus distribution example 2

Computer users who are dealing with a rogue security software shouldn't buy it's full version. By paying for a license key of a fake antivirus program users would send their money and banking information to cyber criminals. Users who have already entered their credit card number (or other sensitive information) when asked by such bogus software should inform their credit card company that they have been tricked into buying a rogue security software. Screenshot of a web page used to lure computer users into paying for a non-existent full version of rogue bitdefender antivirus and other rogue antivirus programs:

example of a webpage used to collect payments for fake antivirus programs

To protect your computer from rogue bitdefender antivirus and other rogue antivirus programs users should:

  • Keep their operating system and all of the installed programs up-to-date.
  • Use legitimate antivirus and anti-spyware programs.
  • Use caution when clicking on links in social networking websites and email messages.
  • Don't trust online pop-up messages which state that your computer is infected and offers you to download security software.

Symptoms indicating that your operating system is infected with a fake antivirus program:

  • Intrusive security warning pop-up messages.
  • Alerts asking to upgrade to a paid version of a program to remove the supposedly detected malware.
  • Slow computer performance.
  • Disabled Windows updates.
  • Blocked Task Manager.
  • Blocked Internet browsers or inability to visit legitimate antivirus vendor websites.

If you have additional information on rogue bitdefender antivirus or it's removal please share your knowledge in the comments section below.

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About the author:

Tomas Meskauskas

Tomas Meskauskas - expert security researcher, professional malware analyst.

I am passionate about computer security and technology. I have an experience of over 10 years working in various companies related to computer technical issue solving and Internet security. I have been working as an author and editor for pcrisk.com since 2010. Follow me on Twitter and LinkedIn to stay informed about the latest online security threats. Contact Tomas Meskauskas.

PCrisk security portal is brought by a company RCS LT. Joined forces of security researchers help educate computer users about the latest online security threats. More information about the company RCS LT.

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Malware activity

Global malware activity level today:

Medium threat activity

Increased attack rate of infections detected within the last 24 hours.

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