What is AntiVirusTrigger?
AntivirusTrigger is a rogue anti-spyware program that is an exact copy of an earlier rogue called VirusTrigger. AntivirusTrigger installs itself under deceptive pretences, infiltrating the user’s PC without their approval or knowledge. AntivirusTrigger is capable of loading fabricated system scan results full of infections and displaying fake security alerts which actually bring you to the AntivirusTrigger home page where it prompts you to purchase the software.

Once installed, AntivirusTrigger can automatically start with your computer booting up, scan your computer and list a variety of malware that cannot be removed unless you first purchase the program. However, the malware found, in most cases, are legitimate programs being misreported by AntivirusTrigger.

Do you have AntiVirusTrigger?
If you have enough time and expertise, you can search your computer for AntiVirusTrigger manually. However, it might take hours to find out all files of AntiVirusTrigger, and it is possible that AntiVirusTrigger will appear after rebooting, for its hidden files may still be there.

Download automatic scanner for AntiVirusTrigger
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Manual AntiVirusTrigger removal instructions
WARNING: The manually removal method is for advanced users. AntiVirusTrigger manually removal can be difficult and time-consuming. There is no guarantee that AntiVirusTrigger can be completely removed, for there are hundreds of files generated when AntiVirusTrigger installed on your system. Make sure to back up your computer in case that you make any mistakes and your system does not work.

Follow the instructions below for AntiVirusTrigger removal manually:

Navigate and stop AntiVirusTrigger process:
AnvTrgr.exe

Navigate and delete AntiVirusTrigger files:
C:\WINDOWS\Prefetch\ANTIVIRUSTRIGGER.EXE-2BE670E5.pf
C:\Documents and Settings\All Users\Application Data\TEMP
C:\Documents and Settings\weitao\Local Settings\Temp\Perflib_Perfdata_6e4.dat
C:\Documents and Settings\weitao\Start Menu\AntivirusTrigger 2.1.lnk
C:\Documents and Settings\weitao\Start Menu\Programs\AntivirusTrigger 2.1
C:\Documents and Settings\weitao\Start Menu\Programs\AntivirusTrigger 2.1\AntivirusTrigger 2.1.lnk
C:\Documents and Settings\weitao\Desktop\AntivirusTrigger 2.1.lnk
C:\Documents and Settings\weitao\Application Data\Microsoft\Internet Explorer\Quick Launch\AntivirusTrigger 2.1.lnk
C:\Program Files\AnvTrgrsoftware
C:\Program Files\AnvTrgrsoftware\AnvTrgr.exe
C:\Program Files\AnvTrgrsoftware\AnvTrgrWarning.dll
C:\Program Files\AnvTrgrsoftware\uninst.exe

Navigate and Remove AntiVirusTrigger registry values:
HKEY_CLASSES_ROOT\AnvTrgrWarning.WarningBHO
HKEY_CLASSES_ROOT\AnvTrgrWarning.WarningBHO.1
HKEY_CURRENT_USER\Software\AnvTrgrsoft
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run AnvTrgr
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\AnvTrgrWarning.WarningBHO
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\AnvTrgrWarning.WarningBHO.1
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\App Paths\AnvTrgrsoft
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\AnvTrgrsoft
HKEY_USERS\S-1-5-21-73586283-515967899-682003330-1003\Software\AnvTrgrsoft
HKEY_USERS\S-1-5-21-73586283-515967899-682003330-1003\Software\Microsoft\Wind

What are the symptoms of AntiVirusTrigger?

  • AntivirusTrigger may install itself under deceptive pretences
  • AntivirusTrigger may load fabricated system scan results and fake security alerts
  • AntivirusTrigger may automatically start as computer boots up
  • AntivirusTrigger may redirect users to its home page to purchase its program
  • AntivirusTrigger may decrease the system performance

How do I keep away from AntiVirusTrigger?
Once you have cleaned up AntiVirusTrigger, the most important point to prevent AntiVirusTrigger and future malicious programs from reverting is to stay suspicious of spam E-mail attachment and unknown websites. Here are several ways in which you can help protect your computer against AntiVirusTrigger and other malware:

  • Use a computer firewall
  • Confirm that you have downloaded all the latest critical security updates
  • Adjust Internet Explorer web browser’s security settings
  • Download and install anti-spyware protection, such as, Spyware Cease
  • Surf sites and download programs from the web sites you trust

What is Rogue AntiSpyware Program?
AntiVirusTrigger is a type of Rogue AntiSpyware Program.

Rogue Anti-spyware Software is the software that uses malware to advise or install itself through other malicious viruses or security hole without your permission. Rogue software usually pops up fake system message such as “Warning, your computer is infected! Click here to scan your computer now!” Most of the time, when clicking the “OK” button on the dialog tab, users will be directed to an unknown website that may download more spyware threats. Sometimes, even clicking the close button on the top right may lead to the installation of the rogue software, for the button is actually a link.

With the purpose to trick innocent users into the action of paying, rogue software usually counterfeits exaggerated and fake system scanning results and scare users to pay for the removal of the never-existed spyware infections. In fact, the threat is the rogue software itself. Most of them come with a bundle of very harmful spyware programs that hidden in the files themselves.