How to remove Wista Antivirus (Removal Guide)
Posted by Grinler on Fri, 04 Jul 2008 23:34:23 EDT · Views: 7
What this programs does:
Wista Antivirus is a rogue anti-spyware program that deliberately displays false information to scare you into purchasing their software. When Wista Antivirus is installed on your computer, it will automatically scan for malware and display a variety of infections on your computer that cannot be removed unless you first purchase the software. These infections, though, are all fake and are only being shown in order to scare you into thinking you are infected.
This guide will walk you through removing the Wista Antivirus program and any associated malware for free.
Threat Classification:
Add/Remove Programs control panel entry:
Wista Antivirus
Tools Needed for this fix:
Symptoms that may be in a HijackThis Log:
O4 - HKCU\..\Run: [wistaantivirus] C:\Program Files\WistaAntivirus\wistaantivirus.exe
Guide Updates:
07/04/08 - Initial guide creation.
Automated Removal Instructions for Wista Antivirus using Malwarebytes' Anti-Malware:
- Print out these instructions as we will need to close every window that
is open later in the fix.
- Download Malwarebytes' Anti-Malware, or MBAM, from the following location
and save it to your desktop:
Malwarebytes' Anti-Malware Download Link
- Once downloaded, close all programs and Windows on your computer, including
this one.
- Double-click on the icon on your desktop named Download_mbam-setup.exe.
This will start the installation of MBAM onto your computer.
- When the installation begins, keep following the prompts in order to continue
with the installation process. Do not make any changes to default settings
and when the program has finished installing, make sure you leave both the
Update Malwarebytes' Anti-Malware and Launch
Malwarebytes' Anti-Malware checked. Then click on the Finish
button.
- MBAM will now automatically start and you will see a message stating that
you should update the program before performing a scan. As MBAM will automatically
update itself after the install, you can press the OK button
to close that box and you will now be at the main program as shown below.
- On the Scanner tab, make sure the the Perform
quick scan option is selected and then click on the Scan
button to start scanning your computer for Wista Antivirus related
files.
- MBAM will now start scanning your computer for malware. This process can
take quite a while, so we suggest you go and do something else and periodically
check on the status of the scan. When MBAM is scanning it will look like the
image below.
- When the scan is finished a message box will appear as shown in the image
below.
You should click on the OK button to close the message box and continue with the WistaAntivirus removal process.
- You will now be back at the main Scanner screen. At this point you should
click on the Show Results button.
- A screen displaying all the malware that the program found will be shown
as seen in the image below.
You should now click on the Remove Selected button to remove all the listed malware. MBAM will now delete all of the files and registry keys and add them to the programs quarantine.
- When MBAM has finished removing the malware, it will open the scan log and
display it in Notepad. Review the log as desired, and then close the Notepad
window.
- You can now exit the MBAM program.
Your computer should now be free of the WistaAntivirus program. If your current anti-virus solution let this infection through, you may want to consider purchasing the PRO version of Malwarebytes' Anti-Malware to protect against these types of threats in the future.
If you are still having problems with your computer after completing these instructions, then please follow the steps outlined in the topic linked below:
Preparation Guide For Use Before Posting A Hijackthis Log
Associated Wista Antivirus Files:
c:\Documents and Settings\All Users\Start Menu\Programs\WistaAntivirus
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
%UserProfile%\Application Data\Microsoft\Internet Explorer\Quick Launch\WistaAntivirus.lnk
%UserProfile%\Desktop\WistaAntivirus.lnk
c:\Program Files\WistaAntivirus
c:\Program Files\WistaAntivirus\alarm.wav
c:\Program Files\WistaAntivirus\click.wav
c:\Program Files\WistaAntivirus\config.cfg
c:\Program Files\WistaAntivirus\dbinfo
c:\Program Files\WistaAntivirus\success.wav
c:\Program Files\WistaAntivirus\unins000.dat
c:\Program Files\WistaAntivirus\unins000.exe
c:\Program Files\WistaAntivirus\wistaantivirus.exe
c:\Program Files\WistaAntivirus\wistaantivirus.url
c:\Program Files\WistaAntivirus\dll
c:\Program Files\WistaAntivirus\dll\antirootkit.sys
c:\Program Files\WistaAntivirus\dll\def1.base
c:\Program Files\WistaAntivirus\dll\def2.base
c:\Program Files\WistaAntivirus\dll\def3.base
c:\Program Files\WistaAntivirus\dll\immunization.pl
c:\Program Files\WistaAntivirus\dll\license
c:\Program Files\WistaAntivirus\dll\loader.sys
c:\Program Files\WistaAntivirus\dll\privacy.dat
c:\Program Files\WistaAntivirus\dll\realscanner.dll
c:\Program Files\WistaAntivirus\dll\sig1.base
c:\Program Files\WistaAntivirus\dll\sig2.base
c:\Program Files\WistaAntivirus\dll\sigrules.rul
Associated Wista Antivirus Windows Registry Information:
HKEY_CURRENT_USER\Software\wistaantivirus
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Wista Antivirus_is1
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run "wistaantivirus"
