Threat Database Potentially Unwanted Programs PUP.Speedchecker PC Speed Up

PUP.Speedchecker PC Speed Up

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Last updated:

Threat Scorecard

Popularity Rank: 6,943
Threat Level: 10 % (Normal)
Infected Computers: 119,035
First Seen: August 29, 2014
Last Seen: October 4, 2026
OS(es) Affected: Windows

Your system has been detected to have PUP.Speedchecker PC Speed Up, a potentially unwanted program (PUP) that may be causing issues with your computer's performance and security. It's essential to understand the nature of this threat and take immediate action to remove it to prevent further damage.

What Is PUP.Speedchecker PC Speed Up?

PUP.Speedchecker PC Speed Up is a type of potentially unwanted program that is designed to deceive users into thinking their computer is slow and needs optimization. It may promise to improve system performance, but in reality, it can cause more harm than good. PUPs like this one often sneak onto systems through bundled software downloads, infected websites, or misleading advertisements.

How PUP.Speedchecker PC Speed Up Operates

PUP.Speedchecker PC Speed Up operates by scanning your system for supposed errors and issues, then prompting you to pay for a full version of the software to fix these problems. However, these scans are often fake, and the issues it detects may not even exist. The program may also collect your personal data, such as browsing history and search queries, to display targeted advertisements or sell to third-party companies.

Additionally, PUP.Speedchecker PC Speed Up may alter your system settings, slowing down your computer and causing it to become unstable. It may also install additional malware or PUPs, making it challenging to remove completely.

Symptoms of Infection

Common symptoms of PUP.Speedchecker PC Speed Up infection include slow system performance, frequent pop-ups and advertisements, and unwanted changes to your browser settings. You may also notice that your computer is crashing or freezing frequently, or that your search results are being redirected to suspicious websites.

  • Unwanted toolbars or extensions installed on your browser
  • Pop-ups and advertisements appearing on your desktop or in your browser
  • Slow system performance and frequent crashes
  • Changes to your browser settings, such as a new homepage or search engine

How to Remove PUP.Speedchecker PC Speed Up

  1. Boot your computer in Safe Mode with Networking to prevent the PUP from loading
  2. Perform a full scan of your system using a reputable anti-malware tool, such as SpyHunter
  3. Uninstall any suspicious programs or applications that may be related to the PUP
  4. Reset your browser settings to their default values, including Chrome, Firefox, and Edge
  5. Reboot your computer and perform another scan to ensure the PUP has been completely removed

Conclusion

Removing PUP.Speedchecker PC Speed Up from your system is crucial to prevent further damage and protect your personal data. By following the steps outlined above, you can effectively remove this potentially unwanted program and restore your system to its optimal state. Remember to always be cautious when downloading software and to use reputable anti-malware tools to protect your computer from future threats.

SpyHunter Detects & Remove PUP.Speedchecker PC Speed Up

File System Details

PUP.Speedchecker PC Speed Up may create the following file(s):
# File Name MD5 Detections
1. PCSUService.exe d33448475ae41d0a3e8839f2f064c4f8 4,981
2. A0032967.exe 5ae83f94ffa8e4868004898dd3f4e00e 4,435
3. PCSUSD.exe d81031ccc185c3ba3704571c9a901aa4 68
4. PCSUNotifier.exe eaab37904a786fcb914d0453258777b3 38
5. SpeedCheckerService.exe 38eae6d696453ba1e250b5d91b20716d 1
More files

Registry Details

PUP.Speedchecker PC Speed Up may create the following registry entry or registry entries:
CLSID
{3157E247-2784-4028-BF0F-52D6DDC70E1B}
{6C42038D-817A-472C-8C2A-EF46F1DA576D}
{873C7DA8-195D-4D5A-B830-C5E2831901EA}
{B89F5C49-51DB-4974-AB5A-E25901AA339C}
{E9B5B0D2-D08A-49FC-8B5C-159B60BAA268}
File name without path
Accelerer PC.lnk
Acelerar el PC.lnk
http_pcspeedup.com_0.localstorage
PC Speed Up.lnk
pcspeedup[1].exe
pcspeedup[1].xml
Przyspiesz Komputer.lnk
Velocidade Do PC.lnk
www.accelererpc[1].xml
Zrychlenie PC.lnk
Regexp file mask
%WINDIR%\System32\Tasks\PC SpeedUp Service Deactivator
%WINDIR%\Tasks\PC SpeedUp Service Deactivator.job
SOFTWARE\Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoft.microsoftedge_8wekyb3d8bbwe\Children\001\Internet Explorer\DOMStorage\accelererpc.fr
SOFTWARE\Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoft.microsoftedge_8wekyb3d8bbwe\Children\001\Internet Explorer\DOMStorage\pcspeedup.com
SOFTWARE\Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoft.microsoftedge_8wekyb3d8bbwe\Children\001\Internet Explorer\DOMStorage\www.accelererpc.fr
SOFTWARE\Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoft.microsoftedge_8wekyb3d8bbwe\Children\001\Internet Explorer\DOMStorage\www.pcspeedup.com
SOFTWARE\Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoft.microsoftedge_8wekyb3d8bbwe\Children\001\Internet Explorer\EdpDomStorage\accelererpc.fr
SOFTWARE\Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoft.microsoftedge_8wekyb3d8bbwe\Children\001\Internet Explorer\EdpDomStorage\pcspeedup.com
SOFTWARE\Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoft.microsoftedge_8wekyb3d8bbwe\Children\001\Internet Explorer\EdpDomStorage\www.accelererpc.fr
SOFTWARE\Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoft.microsoftedge_8wekyb3d8bbwe\Children\001\Internet Explorer\EdpDomStorage\www.pcspeedup.com
SOFTWARE\Classes\PCSU.Registry
SOFTWARE\Classes\PCSU.Registry.1
SOFTWARE\Classes\PCSU.SysUtils
SOFTWARE\Classes\PCSU.SysUtils.1
Software\Microsoft\Internet Explorer\DOMStorage\pcspeedup.com
Software\Microsoft\Internet Explorer\DOMStorage\www.pcspeedup.com
SOFTWARE\Microsoft\Internet Explorer\MAIN\FeatureControl\FEATURE_BROWSER_EMULATION\SpeedCheckerService.exe
SOFTWARE\Microsoft\Tracing\PCSUSpeedTest_RASAPI32
SOFTWARE\Microsoft\Tracing\PCSUSpeedTest_RASMANCS
SOFTWARE\Microsoft\Tracing\SpeedCheckerService_RASAPI32
SOFTWARE\Microsoft\Tracing\SpeedCheckerService_RASMANCS
SOFTWARE\Microsoft\Windows NT\CurrentVersion\Schedule\CompatibilityAdapter\Signatures\PC SpeedUp Service Deactivator.job
SOFTWARE\Microsoft\Windows NT\CurrentVersion\Schedule\CompatibilityAdapter\Signatures\PC SpeedUp Service Deactivator.job.fp
SOFTWARE\Microsoft\Windows NT\CurrentVersion\Schedule\TaskCache\Tree\PC SpeedUp Service Deactivator
Software\Microsoft\Windows\CurrentVersion\Run\PCSpeedUp
SOFTWARE\Speedchecker Limited
Software\Speedchecker Limited\PC Speed Up
SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\MAIN\FeatureControl\FEATURE_BROWSER_EMULATION\SpeedCheckerService.exe
SOFTWARE\Wow6432Node\Microsoft\Tracing\PCSUSpeedTest_RASAPI32
SOFTWARE\Wow6432Node\Microsoft\Tracing\PCSUSpeedTest_RASMANCS
SOFTWARE\Wow6432Node\Microsoft\Tracing\SpeedCheckerService_RASAPI32
SOFTWARE\Wow6432Node\Microsoft\Tracing\SpeedCheckerService_RASMANCS
SOFTWARE\Wow6432Node\Speedchecker Limited
SOFTWARE\Wow6432Node\Speedchecker Limited\PC Speed Up
SYSTEM\ControlSet001\services\PCSUService
SYSTEM\ControlSet001\services\PCSUUCDRV
SYSTEM\ControlSet002\services\PCSUUCDRV
SYSTEM\CurrentControlSet\services\PCSUService
SYSTEM\CurrentControlSet\services\PCSUUCDRV

Directories

PUP.Speedchecker PC Speed Up may create the following directory or directories:

%ALLUSERSPROFILE%\Microsoft\Windows\Start Menu\Programs\Accelerer PC
%ALLUSERSPROFILE%\Microsoft\Windows\Start Menu\Programs\Acelerar el PC
%ALLUSERSPROFILE%\Microsoft\Windows\Start Menu\Programs\PC Speed Up
%ALLUSERSPROFILE%\Microsoft\Windows\Start Menu\Programs\Przyspiesz Komputer
%ALLUSERSPROFILE%\Microsoft\Windows\Start Menu\Programs\Velocidade Do PC
%ALLUSERSPROFILE%\Microsoft\Windows\Start Menu\Programs\Zrychlenie PC
%ALLUSERSPROFILE%\Start Menu\Programs\PC Speed Up
%APPDATA%\Microsoft\Windows\Start Menu\Programs\PC Speed Up
%LOCALAPPDATA%\Microsoft\Silverlight\OutOfBrowser\Speedchecker.PCSpeedUp
%PROGRAMFILES%\Accelerer PC
%PROGRAMFILES%\Acelerar el PC
%PROGRAMFILES%\PC Speed Up
%PROGRAMFILES%\Przyspiesz Komputer
%PROGRAMFILES%\Velocidade Do PC
%PROGRAMFILES%\Zrychleni Pocitace
%PROGRAMFILES%\Zrychlenie PC
%PROGRAMFILES(x86)%\Accelerer PC
%PROGRAMFILES(x86)%\Acelerar el PC
%PROGRAMFILES(x86)%\PC Speed Up
%PROGRAMFILES(x86)%\Przyspiesz Komputer
%PROGRAMFILES(x86)%\Velocidade Do PC
%PROGRAMFILES(x86)%\Zrychleni Pocitace
%PROGRAMFILES(x86)%\Zrychlenie PC
%UserProfile%\Local Settings\Application Data\Microsoft\Silverlight\OutOfBrowser\Speedchecker.PCSpeedUp
%userprofile%\Documents\PCSpeedUp

Analysis Report

General information

Family Name: PUP.Speedchecker PC Speed Up
Signature status: Hash Mismatch

Known Samples

MD5: 80e8d9a0f505906fd26f1dc0282cb19b
SHA1: 50079864d2c17b6c8174752e06c55949c059d8a3
SHA256: A52F67BD0CD54CFBA2B51508300B8E2487215AC74AAC6C052A72A2F14F74918E
File Size: 5.08 MB, 5077328 bytes

Windows Portable Executable Attributes

  • File doesn't have "Rich" header
  • File doesn't have debug information
  • File doesn't have exports table
  • File doesn't have relocations information
  • File has TLS information
  • File is 32-bit executable
  • File is either console or GUI application
  • File is GUI application (IMAGE_SUBSYSTEM_WINDOWS_GUI)
  • File is Native application (NOT .NET application)
  • File is not packed
Show More
  • IMAGE_FILE_DLL is not set inside PE header (Executable)
  • IMAGE_FILE_EXECUTABLE_IMAGE is set inside PE header (Executable Image)

File Icons

Windows PE Version Information

Name Value
Comments This installation was built with Inno Setup.
Company Name Optimal Software s.r.o
File Description WiFi Protector. Your personal WiFi security guide
File Version 3.0.20.138 web-wpbe
Legal Copyright Copyright © Optimal Software s.r.o 2009-2013
Product Name WiFi Protector v.3.0.20.138 (2013-10-18 04:23:41) web-wpbe
Product Version 3.0.20.138

Digital Signatures

Signer Root Status
Optimal Software s.r.o. DigiCert High Assurance Code Signing CA-1 Hash Mismatch

Files Modified

File Attributes
c:\users\user\appdata\local\temp\is-p3aeg.tmp\50079864d2c17b6c8174752e06c55949c059d8a3_0005077328.tmp Generic Write,Read Attributes
c:\users\user\appdata\local\temp\setup log 2026-02-25 #001.txt Generic Read,Write Data,Write Attributes,Write extended,Append data

Windows API Usage

Category API
Process Manipulation Evasion
  • NtUnmapViewOfSection
Process Shell Execute
  • CreateProcess
User Data Access
  • GetUserObjectInformation

Shell Command Execution

"C:\Users\Ncocouwi\AppData\Local\Temp\is-P3AEG.tmp\50079864d2c17b6c8174752e06c55949c059d8a3_0005077328.tmp" /SL5="$3037E,4571469,118784,c:\users\user\downloads\50079864d2c17b6c8174752e06c55949c059d8a3_0005077328"