17 November 2017
Infection Length:
PC Smart Cleanup
PC Smart Cleanup
Risk Impact:
Systems Affected:


PUA.PCSmartCleanup is a potentially unwanted application that gives misleading information about issues on the computer. It then asks the user to pay to fix the issues.

Antivirus Protection Dates

  • Initial Rapid Release version 16 November 2017 revision 057
  • Latest Rapid Release version 26 March 2018 revision 007
  • Initial Daily Certified version 17 November 2017 revision 009
  • Latest Daily Certified version 26 March 2018 revision 017
  • 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 folders:
  • %ProgramFiles%\PC Smart Cleanup
  • %SystemDrive%\ProgramData\Microsoft\Windows\Start Menu\Programs\PC Smart Cleanup
  • %SystemDrive%\ProgramData\PC Smart Cleanup
  • %SystemDrive%\Users\All Users\Microsoft\Windows\Start Menu\Programs\PC Smart Cleanup
  • %SystemDrive%\Users\All Users\PC Smart Cleanup

The application creates the following files:
  • %ProgramFiles%\PC Smart Cleanup\br\pc-smart-cleanup-uninstaller.resources.dll
  • %ProgramFiles%\PC Smart Cleanup\br\pc-smart-cleanup.resources.dll
  • %ProgramFiles%\PC Smart Cleanup\de\pc-smart-cleanup-uninstaller.resources.dll
  • %ProgramFiles%\PC Smart Cleanup\de\pc-smart-cleanup.resources.dll
  • %ProgramFiles%\PC Smart Cleanup\en\pc-smart-cleanup-uninstaller.resources.dll
  • %ProgramFiles%\PC Smart Cleanup\en\pc-smart-cleanup.resources.dll
  • %ProgramFiles%\PC Smart Cleanup\es\pc-smart-cleanup-uninstaller.resources.dll
  • %ProgramFiles%\PC Smart Cleanup\es\pc-smart-cleanup.resources.dll
  • %ProgramFiles%\PC Smart Cleanup\favicon.ico
  • %ProgramFiles%\PC Smart Cleanup\fr\pc-smart-cleanup-uninstaller.resources.dll
  • %ProgramFiles%\PC Smart Cleanup\fr\pc-smart-cleanup.resources.dll
  • %ProgramFiles%\PC Smart Cleanup\Ionic.Zip.dll
  • %ProgramFiles%\PC Smart Cleanup\it\pc-smart-cleanup-uninstaller.resources.dll
  • %ProgramFiles%\PC Smart Cleanup\it\pc-smart-cleanup.resources.dll
  • %ProgramFiles%\PC Smart Cleanup\ja\pc-smart-cleanup-uninstaller.resources.dll
  • %ProgramFiles%\PC Smart Cleanup\ja\pc-smart-cleanup.resources.dll
  • %ProgramFiles%\PC Smart Cleanup\Microsoft.Win32.TaskScheduler.dll
  • %SystemDrive%\ProgramData\Microsoft\Windows\Start Menu\Programs\PC Smart Cleanup\PC Smart Cleanup.lnk
  • %SystemDrive%\ProgramData\Microsoft\Windows\Start Menu\Programs\PC Smart Cleanup\Uninstall PC Smart Cleanup.lnk
  • %SystemDrive%\Users\Public\Desktop\PC Smart Cleanup.lnk

The application then creates the following registry subkeys:
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{6406DF9F-E9C8-4C2E-AB48-80352BDR8529}_is1
  • HKEY_USERS\S-1-5-21-156198121-423029172-7828763-500\Software\Microsoft\Windows\CurrentVersion\Run\PC Smart Cleanup

Next, the application creates the following registry entries:
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{6406DF9F-E9C8-4C2E-AB48-80352BDR8529}_is1\"Inno Setup: Setup Version" = "5.5.5 (a)"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{6406DF9F-E9C8-4C2E-AB48-80352BDR8529}_is1\"Inno Setup: App Path" = "%ProgramFiles%\PC Smart Cleanup"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{6406DF9F-E9C8-4C2E-AB48-80352BDR8529}_is1\"InstallLocation" = "%ProgramFiles%\PC Smart Cleanup\"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{6406DF9F-E9C8-4C2E-AB48-80352BDR8529}_is1\"Inno Setup: Icon Group" = "PC Smart Cleanup"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{6406DF9F-E9C8-4C2E-AB48-80352BDR8529}_is1\"Inno Setup: User" = "Administrator"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{6406DF9F-E9C8-4C2E-AB48-80352BDR8529}_is1\"Inno Setup: Selected Tasks" = "desktopicon"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{6406DF9F-E9C8-4C2E-AB48-80352BDR8529}_is1\"Inno Setup: Deselected Tasks" = ""
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{6406DF9F-E9C8-4C2E-AB48-80352BDR8529}_is1\"Inno Setup: Language" = "en"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{6406DF9F-E9C8-4C2E-AB48-80352BDR8529}_is1\"DisplayName" = "PC Smart Cleanup version 3.0"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{6406DF9F-E9C8-4C2E-AB48-80352BDR8529}_is1\"DisplayIcon" = "%ProgramFiles%\PC Smart Cleanup\favicon.ico"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{6406DF9F-E9C8-4C2E-AB48-80352BDR8529}_is1\"UninstallString" = ""%ProgramFiles%\PC Smart Cleanup\unins000.exe""
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{6406DF9F-E9C8-4C2E-AB48-80352BDR8529}_is1\"QuietUninstallString" = ""%ProgramFiles%\PC Smart Cleanup\unins000.exe" /SILENT"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{6406DF9F-E9C8-4C2E-AB48-80352BDR8529}_is1\"DisplayVersion" = "3.0"

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

The application then asks the user to pay in order to fix the listed issues.
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.