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Remove (Removal Guide) - updated Oct 2018

removal by Alice Woods - - | Type: Browser hijacker

Schooldozer – a browser hijacker that tries to use the professional image to mislead its victims browser hijacker is a search engine developed and maintained by Schooldozer. It is oriented to Mac users, though can also be installed on Windows OS. Although developers claim that the tool is “offering a better way for you to reach the Mac software community,”[1] and other security researchers do not recommend using due to doubtful search results that it displays unauthorized usage of tracking cookies and an excessive amount of commercial ads. Regarding the behaviour, Schooldozer virus falls for the browser hijacker and potentially unwanted program (PUP) categories.

Classification Browser hijacker
Distibution Bundling
Danger level Low. Displays suspicious content, but can't harm PC or Mac directly
Symptoms Corrupted web browser's settings: replaced search engine, start page, and new tab URL. Doubtful search results and loads of ads
Elimination The easiest way to get rid of a browser hijacker is to download Reimage Reimage Cleaner Intego and run a full system scan with it

The tag PUP is given to programs and browser extensions that practice stealthy installation methods. No, that doesn’t mean that PUPs like Schooldozer spread via exploit kits, spam, drive-by-download and similar techniques used by spyware, ransomware, worm, and similar. PUPs rely on bundling.[2] They are often attached as default components, which enter PC without asking user’s permission properly.

That explains the fact why so many Mac OS X users found their web browsers (Chrome, Firefox, IE, Edge, etc.) hijacked. In most of the cases, it settles down on a default web browser in the form of extension and replaces the start page, search engine, and new tab URL. Consequently, PCs owner is continuously redirected to Schooldozer URL.

Third-party search engines like this one are not malicious if compared to other cyber infections.[3] Nevertheless, they pose a risk of visiting suspicious or even dangerous websites. Third-party affiliates that render redirect virus to promote their products, programs or services. The problem is that no one monitors the promoted content, which is why there’s a risk to end up with another PUP or even virus by clicking on search results.

Besides, it may deliver an excessive amount of misleading ads promoting dubious services, questionable online survey or even tech-support scam. Thus, we would not recommend you to click on any ads or links that are displayed to you before removal.

Not to mention, it may also try to promote dubious download managers and other software. As the developer claims on the official website, the service provides numerous services for its users:

Install applications the easy way and without the hassle, using the Schooldozer downloader. The Schooldozer platform stems from years of experience with installing applications, resulting in a highly optimized process, yielding faster downloads, better user experience, and more successful installations.

To revert the changes initiated on your web browser, you should remove Schooldozer ASAP. The quickest way to do that is to run a full system scan with your anti-virus or follow our detailed removal guide which is explained further. Additionally, use Reimage Reimage Cleaner Intego to see if there are no malware leftover files on your computer. virus targets Mac OS users is classified as browser hijacker due to suspicious activities that it initiates on web browsers.

Browser hijackers to not ask for permission to install properly

Indeed, it’s more than annoying to find web browser’s customized settings modified without your consent. Such situation is quite common since people keep installing freeware and shareware carelessly.

Unwanted programs often spread as additional components of various download managers, converters, etc. promoted on legitimate download sources. Thus, if the user opts for Quick or Basic installation, he or she inadvertently permits the installation of add-ons, toolbars, extensions, and similar tools.

To prevent this from happening, it’s a must to install freeware using Advanced or Custom installation method. Carefully verify each installation setup window and unmark offers to install “recommended apps.”

Learn how to remove virus easily

If you’ve been tricked into installing a browser hijacker, to do wait long and eliminate it. To remove Schooldozer virus from Mac or Windows, run a full system scan with a professional security tool. PUP removal is also possible manually, though it requires more time and extreme accuracy.

Upon removal don’t forget to reset web browser’s settings. Otherwise, the unwanted extension will remain active in keeping this URL as a default start page and search provider.

You may remove virus damage with a help of Reimage Reimage Cleaner Intego. SpyHunter 5Combo Cleaner and Malwarebytes are recommended to detect potentially unwanted programs and viruses with all their files and registry entries that are related to them.

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Reimage Happiness
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Compatible with Microsoft Windows Supported versions Compatible with OS X Supported versions
What to do if failed?
If you failed to remove virus damage using Reimage Intego, submit a question to our support team and provide as much details as possible.
Reimage Intego has a free limited scanner. Reimage Intego offers more through scan when you purchase its full version. When free scanner detects issues, you can fix them using free manual repairs or you can decide to purchase the full version in order to fix them automatically.
Alternative Software
Different software has a different purpose. If you didn’t succeed in fixing corrupted files with Reimage, try running SpyHunter 5.
Alternative Software
Different software has a different purpose. If you didn’t succeed in fixing corrupted files with Intego, try running Combo Cleaner.

To remove, follow these steps:

Uninstall from Mac OS X system

Search Schooldozer targets Mac OS X systems in particular. If it compromised your web browser, you can remove it manually by following these steps:

  1. If you are using OS X, click Go button at the top left of the screen and select Applications. Cick 'Go' and select 'Applications'
  2. Wait until you see Applications folder and look for or any other suspicious programs on it. Now right click on every of such entries and select Move to Trash. Click on every malicious entry and select 'Move to Trash'

Delete from Internet Explorer (IE)

  1. Remove dangerous add-ons
    Open Internet Explorer, click on the Gear icon (IE menu) on the top right corner of the browser and choose Manage Add-ons. Click on menu icon and select 'Manage add-ons'
  2. You will see a Manage Add-ons window. Here, look for and other suspicious plugins. Disable these entries by clicking Disable: Right click on each of malicious entries and select 'Disable'
  3. Change your homepage if it was altered by virus:
    Click on the gear icon (menu) on the top right corner of the browser and select Internet Options. Stay in General tab.
  4. Here, remove malicious URL and enter preferable domain name. Click Apply to save changes. Delete malicious URL, enter your desired domain name and click 'Apply' to save changes
  5. Reset Internet Explorer
    Click on the gear icon (menu) again and select Internet options. Go to Advanced tab.
  6. Here, select Reset.
  7. When in the new window, check Delete personal settings and select Reset again to complete removal. Go to 'Advanced' tab and click on 'Reset' button. Now select 'Delete personal settings' and click on 'Reset' button again

Remove from Microsoft Edge

Reset Microsoft Edge settings (Method 1):

  1. Launch Microsoft Edge app and click More (three dots at the top right corner of the screen).
  2. Click Settings to open more options.
  3. Once Settings window shows up, click Choose what to clear button under Clear browsing data option. Go to Settings and select 'Choose what to clear'
  4. Here, select all what you want to remove and click Clear. Select 'Clear' button
  5. Now you should right-click on the Start button (Windows logo). Here, select Task Manager. Open the start menu and select 'Task Manager'
  6. When in Processes tab, search for Microsoft Edge.
  7. Right-click on it and choose Go to details option. If can’t see Go to details option, click More details and repeat previous steps. Right-click 'Microsoft Edge' and select 'Go to details' Select 'More details' if 'Go to details' option fails to show up
  8. When Details tab shows up, find every entry with Microsoft Edge name in it. Right click on each of them and select End Task to end these entries. Find Microsoft Edge entries and select 'End Task'

Resetting Microsoft Edge browser (Method 2):

If Method 1 failed to help you, you need to use an advanced Edge reset method.

  1. Note: you need to backup your data before using this method.
  2. Find this folder on your computer: C:\Users\%username%\AppData\Local\Packages\Microsoft.MicrosoftEdge_8wekyb3d8bbwe.
  3. Select every entry which is saved on it and right click with your mouse. Then Delete option. Go to Microsoft Edge folder on your computer, right-click every entry and click 'Delete'
  4. Click the Start button (Windows logo) and type in window power in Search my stuff line.
  5. Right-click the Windows PowerShell entry and choose Run as administrator. Find Windows PowerShell, right-click it and select 'Run as administrator'
  6. Once Administrator: Windows PowerShell window shows up, paste this command line after PS C:\WINDOWS\system32> and press Enter:
    Get-AppXPackage -AllUsers -Name Microsoft.MicrosoftEdge | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register $($_.InstallLocation)\AppXManifest.xml -Verbose}
    Copy and paste a required command and press 'Enter'

Once these steps are finished, should be removed from your Microsoft Edge browser.

Erase from Mozilla Firefox (FF)

Once you perform a full PUP elimination, reset your web browser to disable suspicious extensions and tracking cookies.

  1. Remove dangerous extensions
    Open Mozilla Firefox, click on the menu icon (top right corner) and select Add-ons Extensions. Click on menu icon and select 'Add-ons'
  2. Here, select and other questionable plugins. Click Remove to delete these entries. Select 'Extensions' and look for malicious entries. Click 'Remove' to get rid of each of them
  3. Change your homepage if it was altered by virus:
    Click on the menu (top right corner), choose Options General.
  4. Here, delete malicious URL and enter preferable website or click Restore to default.
  5. Click OK to save these changes. When in 'General' tab, delete malicious URL from 'Home Page' section or click on 'Restore to Default' button. Click 'OK' to save changes
  6. Reset Mozilla Firefox
    Click on the Firefox menu on the top left and click on the question mark. Here, choose Troubleshooting Information. Click on menu icon and then on '?'. Select 'Troubleshooting Information'
  7. Now you will see Reset Firefox to its default state message with Reset Firefox button. Click this button for several times and complete removal. Click on 'Reset Firefox' button for a couple of times

Eliminate from Google Chrome

Google Chrome users should initiate the below-given steps to eliminate unwanted search engine:

  1. Delete malicious plugins
    Open Google Chrome, click on the menu icon (top right corner) and select Tools Extensions. Click on menu icon. Select 'Tools' and 'Extensions'
  2. Here, select and other malicious plugins and select trash icon to delete these entries. Look for malicious entries and delete each of them by clicking on the Trash bin icon
  3. Change your homepage and default search engine if it was altered by your virus
    Click on menu icon and choose Settings.
  4. Here, look for the Open a specific page or set of pages under On startup option and click on Set pages. After clicking on menu and 'Settings', select 'Set pages'
  5. Now you should see another window. Here, delete malicious search sites and enter the one that you want to use as your homepage. Click 'X' to remove malicious URLs
  6. Click on menu icon again and choose Settings Manage Search engines under the Search section. When in 'Settings', select 'Manage search engines...'
  7. When in Search Engines..., remove malicious search sites. You should leave only Google or your preferred domain name. Click 'X' to remove malicious URLs
  8. Reset Google Chrome
    Click on menu icon on the top right of your Google Chrome and select Settings.
  9. Scroll down to the end of the page and click on Reset browser settings. When in 'Settings', scroll down to 'Reset browser settings' button and click on it
  10. Click Reset to confirm this action and complete removal. Click on 'Reset' button to complete your removal

Get rid of from Safari

  1. Remove dangerous extensions
    Open Safari web browser and click on Safari in menu at the top left of the screen. Once you do this, select Preferences. Click on 'Safari' and select 'Preferences'
  2. Here, select Extensions and look for or other suspicious entries. Click on the Uninstall button to get rid each of them. Go to 'Extensions' and uninstall malicious add-ons
  3. Change your homepage if it was altered by virus:
    Open your Safari web browser and click on Safari in menu section. Here, select Preferences as it was displayed previously and select General.
  4. Here, look at the Homepage field. If it was altered by, remove unwanted link and enter the one that you want to use for your searches. Remember to include the "http://" before typing in the address of the page. When in 'General', delete malicious URL and enter your desired domain name
  5. Reset Safari
    Open Safari browser and click on Safari in menu section at the top left of the screen. Here, select Reset Safari.... Click on 'Safari' and select 'Reset Safari...'
  6. Now you will see a detailed dialog window filled with reset options. All of those options are usually checked, but you can specify which of them you want to reset. Click the Reset button to complete removal process. Select all options and click on 'Reset' button

About the author

Alice Woods
Alice Woods - Likes to teach users about virus prevention

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