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Avtivirus-fortress.com

Posted: April 6, 2010

Avtivirus-fortress.com (or Avtivirusfortress.com) is a rogue website which promotes Antivirus Suite. The hackers behind this blatant scam use Avtivirusfortress.com to convince Internet users to spend money on a useless product. Avtivirus-fortress.com uses Trojans to redirect the web browser to a fake system scan which produces bogus results claiming the computer is infected with malware. Avtivirusfortress.com will then bombard the user with popup warnings urging the purchase of Antivirus Suite to remove the alleged threats. Use a proven antivirus program to remove all threats related to this cyberscam.

File System Modifications

  • The following files were created in the system:
    # File Name
    1 %Documents and Settings%\[UserName]\Local Settings\Application Data\[random string]\[random string]ftav.exe
    2 %Documents and Settings%\[UserName]\Local Settings\Application Data\[random string]\[random string]sysguard.exe
    3 %Documents and Settings%\[UserName]\Local Settings\Application Data\[random string]\[random string]tssd.exe

Registry Modifications

  • The following newly produced Registry Values are:
    HKEY..\..\..\..{Subkeys}HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Download "CheckExeSignatures" = "no"HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Download "RunInvalidSignatures" = "1"HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings "ProxyEnable" = "1"HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings "ProxyOverride" = ""HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings "ProxyServer" = "http=127.0.0.1:5555"HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Associations "LowRiskFileTypes" = ".exe"HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Attachments "SaveZoneInformation" = "1"HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run\"[random string].exe"HKEY_LOCAL_MACHINE\SOFTWARE\avsuiteHKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\..{RunKeys}HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\"[random string].exe"
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