How to Remove Site Trust Checker

A computer is probably infected with Site Trust Checker adware if the homepage and search engine use an undesirable URL. This homepage hijacker can enter the computer through a number of methods and deftly avoids security measures as well as user consent. Site Trust Checker’s creators use a variety of distribution methods to spread the malicious code that infects the browser, earning it the moniker “potentially unwanted program” (PUP).

Site Trust Checker Distribution Scheme

As previously indicated, the perpetrators of this malicious browser extension employ a variety of strategies to disseminate Site Trust Checker broadly online. Here are a few of the most popular distribution plans:

Malicious Software Installer

Attackers are confident that target victims may unintentionally install the adware when the program setup is carried out since they have embedded Site Trust Checker inside various software installers. While only one instance is visible to users, this approach can execute multiple simultaneous installation processes. In addition to freeware, it was discovered that Site Trust Checker is frequently packaged with serial key generators and cracked software.

Fake Software Update

Another method used by attackers to distribute Site Trust Checker is through a phony software update. In order to trick online users into downloading the undesirable program, this is the current trend. The technique uses a pop-up ad that appears to be a system alert. It is claimed to identify problems brought on by out-of-date software and advise web users to get the recommended software update right away. If the user falls for this ploy, Site Trust Checker will have access to the computer.

Misleading Pop-up Ads

Pop-up advertising is also used in this approach. The strategy for this one, however, is much more aggressive because of the persistent display of advertisements touting Site Trust Checker as a useful browser plugin that improves web users’ online browsing and search experiences. These advertisements may appear on dubious websites like,,, and many more.

Screenshot of Site Trust Checker

Site Trust Checker is a browser hijacker

When Site Trust Checker is installed, it immediately changes the homepage and sets an unwanted search engine as the default. As a result, whenever that web user conducts an online search, the request is forwarded to an unwanted search engine. The goal of this redirect is to gather important data from each online user’s search query.

Users who utilize Site Trust Checker as their default search engine may never receive the same helpful results they did before the infection, even if a legitimate search engine is still in control. Site Trust Checker’s new and faulty search engine frequently has paid links and other harmful advertisements on the search result page.

To sum up, Site Trust Checker is a harmful browser extension that needs to be removed right away in order to return the browser to its prior state of efficient operation. To get rid of the threat, scan the computer with a reliable virus and malware removal program. The content of the next parts is a detailed explanation of how to remove this adware.

Site Trust Checker Removal Procedure

Below is a systematic instruction that is very useful in getting rid of the potentially unwanted program (PUP) from compromised Windows computer. Aside from removing the malicious browser extension, this guide is also helpful in deleting browser hijacker and pop-ups.

In order to totally eliminate the threat, it is vital to follow the process in exact manner.

Quick Fix - Scan the PC with Combo Cleaner for Windows

Combo Cleaner is a trusted PC security and optimization tool equipped with powerful virus and malware detection engine. This program can get rid of browser hijacker like Site Trust Checker through this procedure.

1. Download the application from the following page:

2. Save the file to your preferred location.

3. Double-click the downloaded file CCSetup.exe and install with the default settings.

CC for Windows Installation

4. At the end of the setup process, click Finish to run Combo Cleaner.

5. The tool will update the signature file, please wait for this process to complete.

6. To begin checking for threats like Site Trust Checker, click on the Start Scan button. Wait for this scan to finish.

CC for Windows Start Scan

7. At the end of the scan process, click on Remove all threats to delete Site Trust Checker hijacker including all malicious objects from the computer.

Free features of Combo Cleaner for Windows includes Disk Cleaner, Big Files finder, Duplicate files finder, and Uninstaller. To use antivirus, privacy scanner, and to delete identified threats, users have to upgrade to a premium version.

Please continue with the succeeding removal procedures if your are comfortable to manually get rid of the threat and malicious items linked with it.

Step 1 : Delete Site Trust Checker Browser Extension

Most adware and unwanted programs are using a program called browser extension to be able to take over the settings of internet applications. Therefore, we highly recommend to check and remove the extension that is closely related to Site Trust Checker.

Remove Site Trust Checker Extension from Google Chrome

1. Open Google Chrome browser.

2. Type chrome://extensions/ in the address bar and press Enter on keyboard.

Chrome URL

3. Find Site Trust Checker or relevant entry and remove it from Google Chrome browser.

Uninstall Site Trust Checker Extension from Mozilla Firefox

1. Open Mozilla Firefox browser.

2. Type about:addons in the address bar and press Enter on keyboard.

Firefox URL

3. Choose Extensions on sidebar menu.

4. Look for object that is pertaining to Site Trust Checker and remove it from the browser.

After deleting the malicious browser extension, it is expected that Site Trust Checker is also gone from the homepage.

Remove Site Trust Checker Add-ons from Internet Explorer and Edge Browser

1. Open Internet Explorer program.

2. Go to top Menu and click Tools. Then, select Manage Add-ons from the drop-down list.

Internet Explorer Add-ons

3. Look for and Remove or Disable entries of Site Trust Checker from Toolbars and Extension. Additionally, delete unwanted entry from Search Providers section.

4. Close the window and restart Internet Explorer.

If Site Trust Checker is still present on the IE browser and there are still unwanted homepage and pop-ups, another option is to remove the adware from Windows Control Panel.

5. Press Windows Key + R and then, type appwiz.cpl command.

6. Program and Features window will open. Arrange the list in chronological manner with recently installed applications on top. To do this, click on 'Installed On' column.

Add-Remove Malware

7. Select Site Trust Checker or recently installed unwanted entry. Then, click on Uninstall to remove it from Windows system.

Step 2 : Scan the computer with Sophos Antivirus

To remove Site Trust Checker automatically, scanning the computer with this powerful anti-virus tool is recommended. This scanner does not just uncover known threats like viruses or malware, it is also effective in discovering browser hijacker like Site Trust Checker that slows down online browsing activities.

1. Download Sophos Virus Removal Tool from the link below. Save the file on your computer where you can easily access it.

2. Once the download completes, browse the location of the file. Double-click to run the program and begin the install process.

3. On first windows of installation wizard, click Next to continue. Then, it will display the program’s License Agreement. You need to Accept the terms in order to proceed. If Windows prompts for User Account Control, please click Yes to proceed.

Screenshot of Sophos EULA Page

4. On succeeding windows, click Next or Continue to carry on with the installation. After completing the installation process, Launch Sophos Virus Removal Tool.

5. Internet connection is required when running this scanner in order to download important updates. Make sure that everything is up-to-date to effectively remove malicious program like Site Trust Checker.

6. Click the  button to  carry out the Scan. This will check the system for presence of malicious objects, malware, and viruses. The tool reveals items that were found linked to Site Trust Checker and other suspicious entities. Be sure to remove all identified threats.

Screenshot of Sophos Virus Scan

The above procedures should have totally eliminated the Site Trust Checker browser hijacker. However, if you found that there are still remnants of the threat, please proceed to manual removal of associated objects as outlined below.

Step 3 : Scan and Delete Adware with AdwCleaner

In addition to the procedure, we suggest scanning the computer with AdwCleaner tool. Possibly, there are some traces of Site Trust Checker on the browser that was not deleted during the preceding steps. This tool will scan the computer and check for presence of malicious applications as well as invalid browser entries that produces hijacking, redirects, and pop-ups.

1. Follow the link below to download the tool called AdwCleaner.

2. When the download has completed, please close all running programs on the computer especially browsers affected by Site Trust Checker.

3. Browse the location of the downloaded file and double-click on adwcleaner_Ver.exe to start running the tool. Then, click on Scan button.


4. AdwCleaner searches the computer for malicious programs, extensions, plug-ins, adware, and any items that may be associated to Site Trust Checker. It will also check for suspicious entries on browser settings that is associated with the hijacker.

5. Clean or Remove all suspicious and harmful items identified after the thorough scan.

6. After the cleanup procedure, rebooting the computer is required to finalize the removal of detected threats.

Check if your internet browser application is no longer being bothered by Site Trust Checker. If the browser hijacker still persists, please continue with the steps below to reset internet programs to default settings.

Optional : Reset Internet Browser Program

Cleaning your internet browser from clutter and unwanted add-on/extension is a must when dealing with Site Trust Checker. The procedure below discuss on resetting various browsers to its default state.

Restore Google Chrome to Default Settings

Resetting Google Chrome to default settings is helpful in deleting hard-to-remove extension such as from Site Trust Checker. This method is highly advisable to perform if you have difficulty in removing unwanted extension.

1. Open Google Chrome Internet browser.
2. On the address bar, type chrome://settings/reset and press Enter key.
3. Under Reset and clean up section, choose Restore settings to their original defaults.
4. Click Reset settings button to clear all entries of Site Trust Checker.
5. Close the existing tab and restart Google Chrome. That should have removed Site Trust Checker extension and associated objects.

Reset Mozilla Firefox to Default

This section describes how to remove unwanted extension from Firefox that may be related to Site Trust Checker. This process can fix many browser issues by restoring Firefox to factory settings without affecting your essential information (bookmarks, browsing history, passwords, and Internet cookies) on the browser. If you desire to remove only specific extension, please see manual removal of add-on from Firefox.

1. Input the string about:support on Firefox web address and press Enter on keyboard.
2. You will now see the Troubleshooting Information page of Mozilla Firefox.
3. You will notice a section on upper-right corner of the screen stating Give Firefox a tune up. Click the Refresh Firefox button.
4. If confirmation window appears, click Refresh Firefox to continue.
5. Firefox browser will close and start the resetting process. When done, it will display a list of restored data. Site Trust Checker should be gone by now. Click Finish to open a fresh version of Firefox.

Restore Internet Explorer to Default Settings

1. Open Internet Explorer and navigate to top menu. Click Tools, and then Internet Options.
2. Select Advanced tab on Internet Options window.
3. On lower part of the window, under Reset Internet Explorer Settings area, click the Reset button. Please see image for reference. Your data like favorites, bookmark, and history will remain in the browser. However, this process may delete add-ons by Site Trust Checker and other unknown objects. If you prefer to carry out the procedure manually, please add-on removal from Internet Explorer.

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