Threat Explorer

The Threat Explorer is a comprehensive resource consumers can turn to for daily, accurate, up-to-date information on the latest threats, risks and vulnerabilities.



04 December 2017
Infection Length:
YeahBit PC SpeedUp
YeahBit INC.
Risk Impact:
Systems Affected:


PUA.YeahBitPCSpeedUp is a potentially unwanted application that gives misleading information about issues on the computer.

Antivirus Protection Dates

  • Initial Rapid Release version 18 November 2017 revision 007
  • Latest Rapid Release version 27 November 2017 revision 006
  • Initial Daily Certified version 19 November 2017 revision 004
  • Latest Daily Certified version 28 November 2017 revision 022
  • Initial Weekly Certified release date 22 November 2017
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.
Once executed, the application creates the following files:
  • %AllUsersProfile%\Desktop\YeahBit PC SpeedUp 4.lnk
  • %AllUsersProfile%\Start Menu\Programs\YeahBit PC SpeedUp\Uninstall.lnk
  • %AllUsersProfile%\Start Menu\Programs\YeahBit PC SpeedUp\YeahBit PC SpeedUp.lnk
  • %ProgramFiles%\YeahBit PC SpeedUp\Config.ini
  • %ProgramFiles%\YeahBit PC SpeedUp\Data\FIXdb.dll
  • %ProgramFiles%\YeahBit PC SpeedUp\Data\service\campus_model.bat
  • %ProgramFiles%\YeahBit PC SpeedUp\Data\service\default_model.bat
  • %ProgramFiles%\YeahBit PC SpeedUp\Data\service\home_model.bat
  • %ProgramFiles%\YeahBit PC SpeedUp\Data\service\internet_model.bat
  • %ProgramFiles%\YeahBit PC SpeedUp\Data\service\notebook_model.bat
  • %ProgramFiles%\YeahBit PC SpeedUp\Data\service\office_model.bat
  • %ProgramFiles%\YeahBit PC SpeedUp\Data\YPS.db
  • %ProgramFiles%\YeahBit PC SpeedUp\Data\YPSActivex.dat
  • %ProgramFiles%\YeahBit PC SpeedUp\license.txt
  • %ProgramFiles%\YeahBit PC SpeedUp\RegistryBackup.ini
  • %ProgramFiles%\YeahBit PC SpeedUp\time.dll
  • %ProgramFiles%\YeahBit PC SpeedUp\unins000.dat
  • %ProgramFiles%\YeahBit PC SpeedUp\unins000.exe
  • %ProgramFiles%\YeahBit PC SpeedUp\YPS.exe

Next, the application creates the following registry entries:
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{45B9D501-B7CD-4CD9-B41D-71F095231919}_is1\"Inno Setup: Setup Version" = "5.5.6 (a)"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{45B9D501-B7CD-4CD9-B41D-71F095231919}_is1\"Inno Setup: App Path" = "%ProgramFiles%\YeahBit PC SpeedUp"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{45B9D501-B7CD-4CD9-B41D-71F095231919}_is1\"InstallLocation" = "%ProgramFiles%\YeahBit PC SpeedUp\"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{45B9D501-B7CD-4CD9-B41D-71F095231919}_is1\"Inno Setup: Icon Group" = "YeahBit PC SpeedUp"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{45B9D501-B7CD-4CD9-B41D-71F095231919}_is1\"Inno Setup: User" = "AutoVM"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{45B9D501-B7CD-4CD9-B41D-71F095231919}_is1\"Inno Setup: Selected Tasks" = "desktopicon,quicklaunchicon"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{45B9D501-B7CD-4CD9-B41D-71F095231919}_is1\"Inno Setup: Deselected Tasks" = ""
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{45B9D501-B7CD-4CD9-B41D-71F095231919}_is1\"Inno Setup: Language" = "default"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{45B9D501-B7CD-4CD9-B41D-71F095231919}_is1\"DisplayName" = "YeahBit PC SpeedUp 4.0.5"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{45B9D501-B7CD-4CD9-B41D-71F095231919}_is1\"DisplayIcon" = "F:\2012Yeahbit\20110130coder\YSK20111122\YeahbitPCSpeed20120130\YeahbitPCSpeed20110710\YeahbitPCSpeed\°²×°½Å±¾\setup\uninstall.ico"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{45B9D501-B7CD-4CD9-B41D-71F095231919}_is1\"UninstallString" = ""%ProgramFiles%\YeahBit PC SpeedUp\unins000.exe""
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{45B9D501-B7CD-4CD9-B41D-71F095231919}_is1\"QuietUninstallString" = ""%ProgramFiles%\YeahBit PC SpeedUp\unins000.exe" /SILENT"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{45B9D501-B7CD-4CD9-B41D-71F095231919}_is1\"DisplayVersion" = "4.0.5"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{45B9D501-B7CD-4CD9-B41D-71F095231919}_is1\"Publisher" = "YeahBit INC."
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{45B9D501-B7CD-4CD9-B41D-71F095231919}_is1\"URLInfoAbout" = ""
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{45B9D501-B7CD-4CD9-B41D-71F095231919}_is1\"HelpLink" = ""
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{45B9D501-B7CD-4CD9-B41D-71F095231919}_is1\"URLUpdateInfo" = ""
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{45B9D501-B7CD-4CD9-B41D-71F095231919}_is1\"NoModify" = "1"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{45B9D501-B7CD-4CD9-B41D-71F095231919}_is1\"NoRepair" = "1"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{45B9D501-B7CD-4CD9-B41D-71F095231919}_is1\"InstallDate" = "20171118"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{45B9D501-B7CD-4CD9-B41D-71F095231919}_is1\"MajorVersion" = "4"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{45B9D501-B7CD-4CD9-B41D-71F095231919}_is1\"MinorVersion" = "0"

The application performs a scan and displays misleading information about issues on the computer.

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.

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.

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

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.