Remove Onemacusa.com Pop-up

If an internet browser program constantly opens or redirects to Onemacusa.com, there is a great chance that Mac computer is infected with adware. However, seeing the unwanted pages does not always mean that internet application is under attack. There are instances that appearance of Onemacusa.com is caused by the visited website itself. Cyber crooks who are developing counterfeit security and optimization tool are also publishing websites that exhibits fake online scanner. The trick is to make it appear that computer is in trouble by running a simulated scan and issuing falsified results.

Onemacusa.com may not have the same tactic as of the moment. Hence, it also bears misleading slogan such as “Experts recommend virus scan for Mac” or “Your Mac might not be safe,” that persuade web users to download advertised program name Mac Mechanic. The tool claims to be a powerful application that can clean, secure, and speedup Mac computer. Onemacusa.com also points out that it is the number one utility tool for Mac system in the whole world, which many Mac enthusiasts can definitely rebut.

Screenshot of Onemacusa.com

Stay away from Onemacusa.com

Remember that Onemacusa.com is not the only web server that was published to spread rogue apps as Macube Cleaner, AweCleaner, or similar fake security and optimization tools. As of this writing, there are thousands of active websites, which can contaminate web user’s computer with unwanted applications. Therefore, the only way to avoid such threat is to stay away from suspicious pages and sites especially if the origins are pop-up advertisements and browser redirects.

To ensure that Mac computer is clean and seeing Onemacusa.com is just due to visited websites, we suggest that you scan the system with anti-malware application. This method also ensures that computer is not infected with adware or any malicious apps.

Technical Details
Domain nameOnemacusa.com
Initial pop-up goalPrompting web user to Allow push notification. If granted, Onemacusa.com will use this feature to send aggressive pop-up ads.
Website purposeTo display different kinds of malicious ads on the browser using the push notification window of Google Chrome, Mozilla Firefox, Safari, and Microsoft Edge.
Current IP address52.21.125.181

Procedures to Remove Onemacusa.com from Mac

This section contains comprehensive guide for Mac users. It will help you remove malicious browser hijacker from internet application.

Procedures on this page are written in a manner that can be easily understand and execute by Mac users.

Quick Fix - Scan the System with Combo Cleaner

Combo Cleaner is a trusted Mac utility application with complete antivirus and optimization features. It is useful in dealing with adware, malware, and PUP's. Moreover, it can get rid of malicious browser hijacker like Onemacusa.com. You may need to purchase full version if you require to maximize its premium features.

1. Download the tool from the following page:

2. Double-click the downloaded file and proceed with the installation.

3. In the opened window, drag and drop the Combo Cleaner icon onto your Applications folder icon.

Install Combo Cleaner

4. Open your Launchpad and click on the Combo Cleaner icon.

5. Wait until antivirus downloads it's latest virus definition updates and click on "Start Combo Scan" to start removing Onemacusa.com.

Combo Cleaner Scanner

6. Free features of Combo Cleaner include Disk Cleaner, Big Files finder, Duplicate files finder, and Uninstaller. To use antivirus and privacy scanner, users have to upgrade to a premium version.

Proceed with the rest of the removal steps if you are comfortable in manually removing malicious objects associated with the threat.

Step 1 : Double-check with MBAM Tool for Mac

1. Download Malwarebytes Anti-malware for Mac from the link below.

2. Run Malwarebytes Anti-malware for Mac. It will check for updates and download if most recent version is available. This is necessary in finding recent malware threats including Onemacusa.com.

3. If it prompts to close all running web browser, please do so. Thus, we advise you to PRINT this guide for your reference before going offline.

4. Once it opens the user interface, please click on Scan button to start scanning your Mac computer.

MBAM for Mac

5. After the scan, Malwarebytes Anti-malware for Mac will display a list of identified threats, Onemacusa.com is surely part of it. Be sure to select all items in the list. Then, click Remove button to clean the computer.

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

Step 2 : Reset Internet Browser Program

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

Clear the Safari Internet Browser (Mac)

1. Open your Safari browser application.
2. In the Safari menu, click on Preferences from the drop-down list.
3. On Preferences window, please select the Privacy tab.
4. Click on Manage Website Data button.
5. Select unwanted entry like Onemacusa.com and click the Remove button. If you choose to Remove All, you may be logout from most visited websites and online services. Therefore, we advise to remove suspicious item one at a time to prevent changing behavior towards your favorite websites.
6. If it prompts, please confirm your actions.

7. Next, we will need to clear the Cache. Back at the Safari Preferences window, choose Advanced tab.
8. Navigate to the bottom and activate Show Develop menu in menu bar.
9. Go to Safari menu, choose on Develop from the drop down list and click on on Empty Caches.
10. Next thing to do is to restore the Homepage to your preference and remove the one from Onemacusa.com.
11. Back at the Safari Preferences window, click on General tab.
12. Under Homepage section, type your desired URL to be the default start-up page.
13. Lastly, make sure to have the right Search Engine.
14. Go back to Safari Preferences window and click on Search tab.
15. Select your desired Search tool under the Search engine section.
16. You may not restart Safari browser.

Restore Google Chrome to Default Settings

Resetting Google Chrome to default settings is helpful in deleting hard-to-remove extension such as from Onemacusa.com. 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 Onemacusa.com.
5. Close the existing tab and restart Google Chrome. That should have removed Onemacusa.com extension and associated objects.

Reset Mozilla Firefox to Default

This section describes how to remove unwanted extension from Firefox that may be related to Onemacusa.com. 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. Onemacusa.com should be gone by now. Click Finish to open a fresh version of Firefox.

About the author

Leave a Comment

Your email address will not be published.