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  3. WistaAntivirus

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
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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