What is MacOsDefender?

MacOsDefender is a nasty PUP or rogueware, it is designed by nasty third-parties and has closed relationship with other ad-provided platform. When there is MacOsDefender on system, it is usually a sign of adware attack.

Invading into the system silently, MacOsDefender begins to activate itself and modifies the start-up program settings. As long as the system is launched, MacOsDefender begins to malfunction the system. MacOsDefender flood your screen with fake errors or virus warning. It uses such trick to make you buy its license. And then, the security settings are also modified as well. Users will get many random popups and fake notifications. With MacOsDefender on the system, more and more harmful vulnerabilities are generated. The PC is under great risks to be severely attacks. MacOsDefender should be removed completely as soon as possible.



Manually Remove MacOsDefender from Windows OS

If you have computer security problems on Mac OS, please read this Mac Guide – How to Clean and Protect Your Mac?


(NOTE: Bookmark this page first because some steps may close your web browser or restart computer)


Quick Menu

Step 1. Remove MacOsDefender related plug-in, toolbar, add-on, extension from Chrome/Firefox/IE/Edge

Step 2. Uninstall MacOsDefender related programs from your computer;

Step 3. Change system folder settings to show all hidden files;

Step 4. Find and delete MacOsDefender related files in hidden folders;

Step 5. Find and remove MacOsDefender related registry files ;

Step 6. Reset Microsoft Edge, Chrome, Firefox and IE to remove MacOsDefender related hijacker;

Step 1.Remove MacOsDefender related extension from Microsoft Edge/ Chrome/Firefox/IE

Note – If you cannot find or remove a malicious extension, please read next steps.

 

 

On Chrome

  • Click the Chrome menu on the browser toolbar.
  • Click Tools.
  • Select Extensions.
  • Click the trash can icon to delete extensions that may be related with MacOsDefender.
  • A confirmation dialog appears, click Remove.

  • Click the menu button and choose Add-ons.
  • In the Add-ons Manager tab, select the Extensions panel.
  • Select add-ons that may be related with MacOsDefender and click Remove button
  • Click Restart now if it pops up.

  • Open the IE, click the Tools button , and click Manage add-ons.
  • Click Toolbars and Extensions on left side of the window., and then select extensions that may be related with MacOsDefender;
  • If the add-on can be deleted, you’ll see the Remove option. Click Remove and then click Close. Otherwise click Disable button.

 

  • Click More (…) on the address bar and select Extensions

 

  • Select extensions that may be related with MacOsDefender and click Uninstall button

 

 

 

 

 

 

 

 


Step 2.Uninstall MacOsDefender related programs from your computer

1. Press Win + R keys at the same time to launch Run box >> Then input: “Control Panel” and click OK

uninstall MacOsDefender

MacOsDefender uninstall

2. In Control Panel, click on Uninstall a program

MacOsDefender uninstalling

3. In the Programs and Features window, right click on apps that may be related with MacOsDefender, then click Uninstall/Change. Then select Uninstall option.

Note – If you cannot find or remove malicious program, please continue the below steps.


Step 3.Change system folder settings to show all hidden files

Win 7 / Vista User

MacOsDefender removal for win 7

  • Right-click the Windows Logo button and choose Open Windows Explorer.
  • Click Organize and choose Folder and Search Options.
  • Click the View tab, select Show hidden files and folders and then clear the checkbox for Hide protected system operating files.
  • Click Yes on the warning and then click OK.
Win 8 UserMacOsDefender removal for win 8

  • On your keyboard press the Windows + E keys.
  • Click the View tab.
  • Check File name extensions and Hidden items

Win 10 User

MacOsDefender removal for win 10

  • Open This PC, click View and select Options.
  • In the Folder Options window, choose View, select Show hidden files, folders, and drives, and then click OK.


Step 4.Find and delete suspicious files in the locations listed below:

%Temp%\[malware name]

%AppData%\[malware name]

%LocalAppData%\[malware name]

%LocalAppData%\[malware name].exe

%CommonAppData%\[malware name]

%AllUsersProfile%random.exe

Note

Virus and malware may hide its files in different locations of PC. If you are not able to locate files of MacOsDefender, you can try Wipersoft’s Malware Detection Tool to see if it can detect the unsafe files for you:

Download WiperSoft Anti-malware

(Note – To understand WiperSoft’s policies and practices, please visit EULA, and Privacy Policy. Learn more about WiperSoft and its key features. If you wish to uninstall WiperSoft, follow the steps to uninstall instructions. WiperSoft scanner is free. Once it detects a virus or malware, you’ll need to purchase its full version to remove the threat.



Step 5. Find and remove nasty registry files related with MacOsDefender:

1. Open Registry Editor first:

  • Press Win [Windows key] + R on your keyboard.

uninstall MacOsDefender

  • Type regedit in the Run box and hit OK

eliminate MacOsDefender

2. Find out and remove all harmful registry files that may be related with MacOsDefender:

(Do Not Delete Any Registry File If You’re Not Familiar with It)

get rid of MacOsDefender

Note

Wrong operation in Registry Editor might harm your computer.If you are not able to locate and identify the nasty registry files, we recommend using Wipersoft Anti-malware and see if it will find out unsafe registry files of infection for you. This may save you hours and avoid risks.

Download WiperSoft Anti-malware

(Note – To understand WiperSoft’s policies and practices, please visit EULA, and Privacy Policy. Learn more about WiperSoft and its key features. If you wish to uninstall WiperSoft, follow the steps to uninstall instructions. WiperSoft scanner is free. Once it detects a virus or malware, you’ll need to purchase its full version to remove the threat.

 


Step 6. Reset Microsoft Edge, Chrome, Firefox and IE to remove MacOsDefender

Reset Microsoft Edge

remove MacOsDefender from edge

 

1. Select More (…) on the address bar, then click Settings

2. click “Choose what to clear”

3. Select all the options and then click Clear button

 

 

 

Reset Chrome

remove MacOsDefender from chrome

1. Open Chrome, then click “Customize and control Google Chrome” button >> click Settings

2. Scroll down to the bottom, then click on Show advanced settings button

3. After clicking on Show advanced settings button, scroll down to the bottom and click on Reset browser settings button

. A message box will pop up to inform that your browser settings will be restored to their original defaults, click Reset button when it appears:

Reset Firefox

remove MacOsDefender from FIREFOX

1. Open Firefox, then click on Firefox button, then Click on Help button, then Click on Troubleshooting Information

2. At the Troubleshooting Information page, click on Reset Firefox

3. A message box will pop up to let you confirm that you want to reset Firefox to its initial state, click Reset Firefox button when it appears:

Reset Internet Explorer

remove MacOsDefender from ie

1. Open Internet Explorer, then click on Tools, then click on Internet Options

2. On the Internet Options window: click on Advanced tab, then click Reset button

3. A message box will pop up to let you confirm that you want to reset all Internet Explorer Settings, click Reset button when it appears:

4. When the resetting process is done, you’ll see this message box, click Close

5. You’ll need to restart your Internet Explorer to complete the resetting process.



Tips for Threat Prevention

– Always running professional Antivirus or Antimalware and keep Firewall ON;

– Create System Restore Point regularly and back up important personal files;

– Avoid downloading free programs from unknown third party shared sites;

– Regularly update system via automatic system update;

– Don’t access porn sites or similar sites which are potentially harmful;

– Avoid opening any attachments of unknown emails.


Categories: Adware