PUP.System-Checker

Published:
Last updated:

Threat Scorecard

Threat Level: 10 % (Normal)
Infected Computers: 215
First Seen: April 17, 2015
Last Seen: October 29, 2022
OS(es) Affected: Windows

The detection of PUP.System-Checker on your system indicates the presence of 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 and prevent further damage.

What Is PUP.System-Checker?

PUP.System-Checker is a type of malware that is classified as a potentially unwanted program (PUP). This category of malware includes programs that are not necessarily viruses, but can still cause problems with your system, such as slowing it down, displaying unwanted advertisements, or collecting your personal data without your consent. PUPs can be installed on your system without your knowledge or permission, often through bundled software downloads or deceptive advertising.

How PUP.System-Checker Operates

Once installed, PUP.System-Checker can operate in various ways, depending on its intended purpose. It may run in the background, consuming system resources and slowing down your computer. It may also display pop-up advertisements, redirect your browser to unwanted websites, or collect your browsing history and personal data. In some cases, PUPs can also install additional malware or software on your system, further compromising its security and performance.

Symptoms of Infection

If your system is infected with PUP.System-Checker, you may notice various symptoms, including slow system performance, unwanted advertisements or pop-ups, unexpected changes to your browser settings or homepage, and suspicious programs or icons on your desktop. You may also experience crashes, freezes, or errors, especially when trying to launch certain programs or access specific websites. It's essential to be aware of these symptoms and take action promptly to prevent further damage.

  • Slow system performance or crashes
  • Unwanted advertisements or pop-ups
  • Unexpected changes to browser settings or homepage
  • Suspicious programs or icons on your desktop

How to Remove PUP.System-Checker

  1. Boot your system in Safe Mode with Networking to prevent the malware from loading and to allow for a more effective removal process.
  2. Perform a full scan of your system using a reputable anti-malware tool, such as SpyHunter, to detect and remove all instances of PUP.System-Checker and any related malware.
  3. Uninstall any suspicious programs or software that you don't recognize or need, as they may be related to the PUP infection.
  4. Reset your web browsers, including Chrome, Firefox, and Edge, to their default settings to remove any unwanted extensions or add-ons.
  5. Reboot your system and perform a follow-up scan to ensure that all malware has been removed and your system is clean.

Conclusion

Removing PUP.System-Checker from your system requires a combination of technical knowledge and caution. By following the steps outlined above and using reputable anti-malware tools, you can effectively remove this potentially unwanted program and prevent further damage to your system. It's essential to remain vigilant and take proactive measures to protect your system from future malware infections, including keeping your software up-to-date, avoiding suspicious downloads, and using strong antivirus protection.

SpyHunter Detects & Remove PUP.System-Checker

Registry Details

PUP.System-Checker may create the following registry entry or registry entries:
Regexp file mask
%WINDIR%\system32\Drivers\scjrtr.sys
SYSTEM\ControlSet001\Control\SafeBoot\Minimal\scjrtf.sys
SYSTEM\ControlSet001\Control\SafeBoot\Minimal\scjrtr.sys
SYSTEM\ControlSet001\Control\SafeBoot\Network\scjrtf.sys
SYSTEM\ControlSet001\Control\SafeBoot\Network\scjrtr.sys
SYSTEM\ControlSet001\Enum\Root\LEGACY_SCJRTF
SYSTEM\ControlSet001\Services\scxy
SYSTEM\ControlSet002\Control\SafeBoot\Minimal\scjrtf.sys
SYSTEM\ControlSet002\Control\SafeBoot\Minimal\scjrtr.sys
SYSTEM\ControlSet002\Control\SafeBoot\Network\scjrtf.sys
SYSTEM\ControlSet002\Control\SafeBoot\Network\scjrtr.sys
SYSTEM\ControlSet002\Enum\Root\LEGACY_SCJRTF
SYSTEM\CurrentControlSet\Control\SafeBoot\Minimal\scjrtf.sys
SYSTEM\CurrentControlSet\Control\SafeBoot\Minimal\scjrtr.sys
SYSTEM\CurrentControlSet\Control\SafeBoot\Network\scjrtf.sys
SYSTEM\CurrentControlSet\Control\SafeBoot\Network\scjrtr.sys
SYSTEM\CurrentControlSet\Enum\Root\LEGACY_SCJRTF
SYSTEM\CurrentControlSet\Services\scxy

Directories

PUP.System-Checker may create the following directory or directories:

%PROGRAMFILES%\System-Checker
%PROGRAMFILES(x86)%\System-Checker