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WistaAntivirus

Updated:
July 7, 2008 11:40:24 AM
Type:
Misleading Application
Name:
Wista Antivirus
Version:
1.0
Publisher:
Wista-Antivirus
Risk Impact:
Medium
Systems Affected:
Windows 98, Windows 95, Windows XP, Windows Me, Windows Vista, Windows NT, Windows Server 2003, Windows 2000
Behavior
The program must be manually installed.

The program reports false or exaggerated system security threats on the computer.





The user is then prompted to pay for a full license of the application in order to remove the errors.





Installation
When the program is executed, it creates the following files:
  • %UserProfile%\Application Data\Microsoft\Internet Explorer\Quick Launch\WistaAntivirus.lnk
  • %UserProfile%\Desktop\WistaAntivirus.lnk
  • C:\Documents and Settings\All Users\Start Menu\Programs\WistaAntivirus\Uninstall wistaantivirus.lnk
  • C:\Documents and Settings\All Users\Start Menu\Programs\WistaAntivirus\wistaantivirus on the Web.lnk
  • C:\Documents and Settings\All Users\Start Menu\Programs\WistaAntivirus\WistaAntivirus.lnk
  • %ProgramFiles%\WistaAntivirus\alarm.wav
  • %ProgramFiles%\WistaAntivirus\click.wav
  • %ProgramFiles%\WistaAntivirus\config.cfg
  • %ProgramFiles%\WistaAntivirus\dbinfo
  • %ProgramFiles%\WistaAntivirus\dll\antirootkit.sys
  • %ProgramFiles%\WistaAntivirus\dll\def1.base
  • %ProgramFiles%\WistaAntivirus\dll\def2.base
  • %ProgramFiles%\WistaAntivirus\dll\def3.base
  • %ProgramFiles%\WistaAntivirus\dll\immunization.pl
  • %ProgramFiles%\WistaAntivirus\dll\license
  • %ProgramFiles%\WistaAntivirus\dll\loader.sys
  • %ProgramFiles%\WistaAntivirus\dll\privacy.dat
  • %ProgramFiles%\WistaAntivirus\dll\realscanner.dll
  • %ProgramFiles%\WistaAntivirus\dll\sig1.base
  • %ProgramFiles%\WistaAntivirus\dll\sig2.base
  • %ProgramFiles%\WistaAntivirus\dll\sigrules.rul
  • %ProgramFiles%\WistaAntivirus\success.wav
  • %ProgramFiles%\WistaAntivirus\unins000.dat
  • %ProgramFiles%\WistaAntivirus\unins000.exe
  • %ProgramFiles%\WistaAntivirus\wistaantivirus.exe
  • %ProgramFiles%\WistaAntivirus\wistaantivirus.url


Next, the program creates the following registry entry so that it executes whenever Windows starts:
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run\"wistaantivirus" = "C:\Program Files\WistaAntivirus\wistaantivirus.exe"

It also creates the following registry subkeys:
  • HKEY_CURRENT_USER\Software\wistaantivirus
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Wista Antivirus_is1

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