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23 June 2015
PC Fix Speed
Risk Impact:
Systems Affected:


PUA.PCFixSpeed is a potentially unwanted application that displays misleading information about issues it claims are slowing down the computer. It may then ask the user to pay to fix the issues.

Note: Virus definitions dated June 23, 2015 or earlier detect this threat as PCFixSpeed.

Antivirus Protection Dates

  • Initial Rapid Release version 02 October 2014 revision 022
  • Latest Rapid Release version 02 November 2017 revision 053
  • Initial Daily Certified version 24 September 2014 revision 019
  • Latest Daily Certified version 04 November 2017 revision 020
  • Initial Weekly Certified release date 01 October 2014
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.
The application can be manually installed or it may come bundled with third-party installers.

When the application is executed, it will perform the following system scans:
  • Registry scan
  • System speed up
  • File clean up

The application displays a pop-up window asking if the user would like to fix these issues.

Note: If the user chooses to fix the issues, it will send them to the following location and ask if they want to subscribe to the full version:
  • [https://][REMOVED]

The application creates the following files:
  • %ProgramFiles%\PCFixSpeed\PCFixSpeed.exe
  • %ProgramFiles%\PCFixSpeed\PCFixTray.exe
  • %ProgramFiles%\PCFixSpeed\unins000.dat
  • %ProgramFiles%\PCFixSpeed\unins000.exe
  • %ProgramFiles%\PCFixSpeed\unins000.msg
  • %SystemDrive%\Documents and Settings\All Users\Start Menu\Programs\PC Fix Speed\PC Fix Speed.lnk
  • %SystemDrive%\Documents and Settings\All Users\Start Menu\Programs\PC Fix Speed\
  • %SystemDrive%\Documents and Settings\All Users\Start Menu\Programs\PC Fix Speed\Uninstall PC Fix Speed.lnk
  • %AllUsersProfile%\PCFixSpeed\Translate\lng.ini
  • %AllUsersProfile%\Desktop\Optimize Your PC.lnk
  • %SystemDrive%\Documents and Settings\All Users\Application Data\PCFixSpeed\faq.htm
  • %SystemDrive%\Documents and Settings\All Users\Application Data\PCFixSpeed\News\PCFS_NEWS_promote_app_MLM_horizontal.png
  • %SystemDrive%\Documents and Settings\All Users\Application Data\PCFixSpeed\News\PCFS_NEWS_promote_app_SO_horizontal.png
  • %SystemDrive%\Documents and Settings\All Users\Application Data\PCFixSpeed\News\PCFS_news_tech_offer.png
  • %SystemDrive%\Documents and Settings\All Users\Application Data\PCFixSpeed\News\PCFS_NEWS_trialpay_tray_ads.png
  • %SystemDrive%\Documents and Settings\All Users\Application Data\PCFixSpeed\News\PCFS_NEWS_uninstall_discount_offer.png

The application creates the following entry so it runs every time Windows starts:
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Window\CurrentVersion\Run\PCFixSpeed: ""%ProgramFiles%\PCFixSpeed\PCFixTray.exe" /startup"

The application creates the following registry entries:
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{F7B34B38-02A6-44D5-B8CC-06EB3B8ACFC9}_is1\Inno Setup: Setup Version: "5.3.8 (a)"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{F7B34B38-02A6-44D5-B8CC-06EB3B8ACFC9}_is1\Inno Setup: App Path: "%ProgramFiles%\PCFixSpeed"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{F7B34B38-02A6-44D5-B8CC-06EB3B8ACFC9}_is1\InstallLocation: "%ProgramFiles%\PCFixSpeed\"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{F7B34B38-02A6-44D5-B8CC-06EB3B8ACFC9}_is1\Inno Setup: Icon Group: "PC Fix Speed"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{F7B34B38-02A6-44D5-B8CC-06EB3B8ACFC9}_is1\Inno Setup: User: "Windows"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{F7B34B38-02A6-44D5-B8CC-06EB3B8ACFC9}_is1\Inno Setup: Selected Tasks: "desktopicon"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{F7B34B38-02A6-44D5-B8CC-06EB3B8ACFC9}_is1\Inno Setup: Deselected Tasks: ""
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{F7B34B38-02A6-44D5-B8CC-06EB3B8ACFC9}_is1\Inno Setup: Language: "en"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{F7B34B38-02A6-44D5-B8CC-06EB3B8ACFC9}_is1\DisplayName: "PC Fix Speed"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{F7B34B38-02A6-44D5-B8CC-06EB3B8ACFC9}_is1\DisplayIcon: "%ProgramFiles%\PCFixSpeed\PCFixSpeed.exe"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{F7B34B38-02A6-44D5-B8CC-06EB3B8ACFC9}_is1\UninstallString: ""%ProgramFiles%\PCFixSpeed\unins000.exe""
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{F7B34B38-02A6-44D5-B8CC-06EB3B8ACFC9}_is1\QuietUninstallString: ""%ProgramFiles%\PCFixSpeed\unins000.exe" /SILENT"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{F7B34B38-02A6-44D5-B8CC-06EB3B8ACFC9}_is1\DisplayVersion: ""
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{F7B34B38-02A6-44D5-B8CC-06EB3B8ACFC9}_is1\Publisher: "Crawler, LLC"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{F7B34B38-02A6-44D5-B8CC-06EB3B8ACFC9}_is1\URLInfoAbout: ""
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{F7B34B38-02A6-44D5-B8CC-06EB3B8ACFC9}_is1\HelpLink: ""
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{F7B34B38-02A6-44D5-B8CC-06EB3B8ACFC9}_is1\URLUpdateInfo: ""
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{F7B34B38-02A6-44D5-B8CC-06EB3B8ACFC9}_is1\NoModify: 0x00000001
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{F7B34B38-02A6-44D5-B8CC-06EB3B8ACFC9}_is1\NoRepair: 0x00000001
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{F7B34B38-02A6-44D5-B8CC-06EB3B8ACFC9}_is1\InstallDate: "20140716"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{F7B34B38-02A6-44D5-B8CC-06EB3B8ACFC9}_is1\MajorVersion: 0x00000001
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.