Threat Explorer

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PUA.TwkbtUninstallPro

PUA.TwkbtUninstallPro

Updated:
November 20, 2017
Infection Length:
Varies
Name:
Tweakerbit Uninstaller Pro
Version:
1.0
Publisher:
Tweakerbit Uninstaller Pro
Risk Impact:
Low
Systems Affected:
Windows

Behavior

PUA.TwkbtUninstallPro is a potentially unwanted application that is designed to uninstall unwanted programs but gives misleading information about issues on the computer. It also asks users to pay for the uninstaller.

Antivirus Protection Dates

  • Initial Rapid Release version November 16, 2017 revision 057
  • Latest Rapid Release version November 18, 2017 revision 003
  • Initial Daily Certified version November 17, 2017 revision 009
  • Latest Daily Certified version November 19, 2017 revision 004
  • Initial Weekly Certified release date November 22, 2017
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.
Once executed, the application creates the following folders:
  • %ProgramData%\Microsoft\Windows\Start Menu\Programs\Tweakerbit Uninstaller Pro
  • %SystemDrive%\Documents and Settings\All Users\Start Menu\Programs\Tweakerbit Uninstaller Pro

The application then creates the following files:
  • %ProgramData%\Microsoft\Windows\Start Menu\Programs\Tweakerbit Uninstaller Pro\Tweakerbit Uninstaller Pro.lnk
  • %ProgramData%\Microsoft\Windows\Start Menu\Programs\Tweakerbit Uninstaller Pro\Uninstall Tweakerbit Uninstaller Pro.lnk
  • %SystemDrive%\Documents and Settings\All Users\Start Menu\Programs\Tweakerbit Uninstaller Pro\Tweakerbit Uninstaller Pro.lnk
  • %SystemDrive%\Documents and Settings\All Users\Start Menu\Programs\Tweakerbit Uninstaller Pro\Uninstall Tweakerbit Uninstaller Pro.lnk
  • %ProgramFiles%\Tweakerbit Uninstaller Pro\Tweakerbit-Uninstaller-Pro.exe
  • %ProgramFiles%\Tweakerbit Uninstaller Pro\Tweakerbit-Uninstaller-Pro.exe.config
  • %ProgramFiles%\Tweakerbit Uninstaller Pro\Tweakerbit-Uninstaller-Pro.pdb
  • %ProgramFiles%\Tweakerbit Uninstaller Pro\Tweakerbit-Uninstaller-Pro.vshost.exe
  • %ProgramFiles%\Tweakerbit Uninstaller Pro\Tweakerbit-Uninstaller-Pro.vshost.exe.config
  • %ProgramFiles%\Tweakerbit Uninstaller Pro\Tweakerbit-Uninstaller-Pro.vshost.exe.manifest
  • %ProgramFiles%\Tweakerbit Uninstaller Pro\Tweakerbit_ProUninstaller.exe
  • %UserProfile%\Desktop\Tweakerbit Uninstaller Pro.lnk

Next, the application creates the following registry entries:
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{6406DF9F-E9C8-4C2E-AB48-80352BDF3333}_is1\"Inno Setup: Setup Version" = "5.5.5 (a)"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{6406DF9F-E9C8-4C2E-AB48-80352BDF3333}_is1\"Inno Setup: App Path" = "%ProgramFiles%\Tweakerbit Uninstaller Pro"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{6406DF9F-E9C8-4C2E-AB48-80352BDF3333}_is1\"InstallLocation" = "%ProgramFiles%\Tweakerbit Uninstaller Pro\"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{6406DF9F-E9C8-4C2E-AB48-80352BDF3333}_is1\"Inno Setup: Icon Group" = "Tweakerbit Uninstaller Pro"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{6406DF9F-E9C8-4C2E-AB48-80352BDF3333}_is1\"Inno Setup: User" = "Administrator"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{6406DF9F-E9C8-4C2E-AB48-80352BDF3333}_is1\"Inno Setup: Selected Tasks" = "desktopicon"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{6406DF9F-E9C8-4C2E-AB48-80352BDF3333}_is1\"Inno Setup: Deselected Tasks" = ""
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{6406DF9F-E9C8-4C2E-AB48-80352BDF3333}_is1\"Inno Setup: Language" = "en"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{6406DF9F-E9C8-4C2E-AB48-80352BDF3333}_is1\"DisplayName" = "Tweakerbit Uninstaller Pro version 1.0"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{6406DF9F-E9C8-4C2E-AB48-80352BDF3333}_is1\"DisplayIcon" = "%ProgramFiles%\Tweakerbit Uninstaller Pro\logo.ico"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{6406DF9F-E9C8-4C2E-AB48-80352BDF3333}_is1\"UninstallString" = ""%ProgramFiles%\Tweakerbit Uninstaller Pro\unins000.exe""
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{6406DF9F-E9C8-4C2E-AB48-80352BDF3333}_is1\"QuietUninstallString" = ""%ProgramFiles%\Tweakerbit Uninstaller Pro\unins000.exe" /SILENT"

The application is designed to uninstall programs from the computer. However, it gives misleading information about issues on the computer. It also displays a fraudulent Microsoft Partner logo, and uses alarming imagery and language while uninstalling applications.



The application then asks users to pay to get an activation key for the uninstaller.
You may have arrived at this page either because you have been alerted by your Symantec product about this risk, or you are concerned that your computer has been affected by this risk.

Before proceeding further we recommend that you run a full system scan . If that does not resolve the problem you can try one of the options available below.



FOR NORTON USERS
If you are a Norton product user, we recommend you try the following resources to remove this risk.


Removal Tool

If you have an infected Windows system file, you may need to replace it using the Windows installation CD .


How to reduce the risk of infection
The following resources provide further information and best practices to help reduce the risk of infection.



FOR BUSINESS USERS
If you are a Symantec business product user, we recommend you try the following resources to remove this risk.


Identifying and submitting suspect files
Submitting suspicious files to Symantec allows us to ensure that our protection capabilities keep up with the ever-changing threat landscape. Submitted files are analyzed by Symantec Security Response and, where necessary, updated definitions are immediately distributed through LiveUpdate™ to all Symantec end points. This ensures that other computers nearby are protected from attack. The following resources may help in identifying suspicious files for submission to Symantec.


Removal Tool

If you have an infected Windows system file, you may need to replace it using the Windows installation CD .


How to reduce the risk of infection
The following resource provides further information and best practices to help reduce the risk of infection.
Protecting your business network



MANUAL REMOVAL
The following instructions pertain to all current Symantec antivirus products.


1. Performing a full system scan
How to run a full system scan using your Symantec product


2. Restoring settings in the registry
Many risks make modifications to the registry, which could impact the functionality or performance of the compromised computer. While many of these modifications can be restored through various Windows components, it may be necessary to edit the registry. See in the Technical Details of this writeup for information about which registry keys were created or modified. Delete registry subkeys and entries created by the risk and return all modified registry entries to their previous values.