Antivirus Clean 2011

Also Known As: Antivirus Clean 2011 Rogue
Damage level: High

What is Antivirus Clean 2011?

When your system is infiltrated by Antivirus Clean 2011, a pop-up will appear on your screen when you visit any website. This pop-up will imply that it is performing a computer security scan and will report multiple infections on your computer.

In order to clean these infections, you will be asked to download and install the full version of Antivirus Clean 2011. When this program is installed on your computer, it will be invoked on every system start-up.

Antivirus Clean 2011 rogue program

This program is a scam. The security scans and the results are completely fake; you should ignore all messages and remove this bogus program from your computer.

This rogue program is scare-ware created with the sole purpose of stealing money from your credit card. If you have already bought this program, you should contact your credit card company and dispute the charges.

This program has been created by Internet criminals in the hope that computer users will purchase license keys for Antivirus Clean 2011 in order to remove 'detected' security infections. You should be very careful when purchasing a security program for your computer - the Internet is full of fake ones, many of which detect non existent security threats and ask you to purchase a full version in order to remove them.

Always research security programs thoroughly before you purchase, in order to obtain legitimate software. If you notice Antivirus Clean 2011 on your computer, you should eliminate it from your PC immediately.

The following fake security messages will be displayed by Antivirus Clean 2011:

"Your computer is in Danger! Antivirus Clean 2011 has detected some serious threats to your computer! These viruses need to be eliminated immediately! Please click this icon to remove threats."

"Your system is infected! Your computer is compromised by hackers, adware, malware and worms! Antivirus Clean 2011 can remove this infection. Please click this icon to remove threats."

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

Try entering this retrieved Antivirus Clean 2011 license key: 8425-3952-7321-4410 (you should enter this code within an activation window). If it works, this bogus program will be disabled and you will be able to remove it without further interventions.

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Quick menu:

Antivirus Clean 2011 virus 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, then click LAN settings, if 'Use a proxy server for your LAN' is checked, uncheck it and press OK.

3.  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 - HKLM\..\Run: [AntivirusClean] C:\Program Files\Antivirus Clean 2011\avc2011.exe
O4 - HKLM\..\Run: [avservice] C:\Program Files\Antivirus Clean 2011\avservice.exe

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

4. Download and install antispyware software to completely remove the infection.

Other tools known to remove Antivirus Clean 2011:

If you are unable to remove Antivirus Clean 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 Windows Antivirus Clean 2011 processes:


Remove these  Antivirus Clean 2011 entries:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run "AntivirusClean" = 'C:\Program Files\Antivirus Clean 2011\avc2011.exe'
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run "avservice" = 'C:\Program Files\Antivirus Clean 2011\avservice.exe'

Delete these Antivirus Clean 2011 files:

c:\Program Files\Antivirus Clean 2011\
c:\Program Files\Antivirus Clean 2011\avc2011.exe
c:\Program Files\Antivirus Clean 2011\avservice.exe
c:\Program Files\Antivirus Clean 2011\avsetup.exe


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 antivirus clean 2011 rogue and other rogue antivirus programs:

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

To protect your computer from antivirus clean 2011 rogue 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 antivirus clean 2011 rogue 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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