Remove MixBuilder “Virus” (Mac Guide)

Parasite may reinstall itself multiple times if you don't delete its core files. We recommend downloading SpyHunter to scan for malicious programs installed with it. This may save you hours and cut down your time to about 15 minutes. 

Download SpyHunter Anti-Malware

More information on SpyHunter, steps to uninstallEULAThreat Assessment Criteria, and Privacy Policy.



When first facing adware such as MixBuilder “Virus”, many web users often panic and do not know what kind of application that is and where it may have come from. If you have also been getting bombarded with hundreds of aggressive ads, pop-ups, redirect links and banners on your screen and MixBuilder is their source, you are probably wondering what this app is and how to make it go away. By definition, the adware applications are not a serious threat to the computer because they do not contain malicious code like typical pieces of malware such as Ransomware, Trojans and viruses. However, they tend to operate in a bit aggressive way by integrating with your Safari,Chrome, Firefox, Edge, Opera or any other browser and by starting to use it for displaying different sponsored advertisements during your regular browsing sessions. For example, MixBuilder may start to spam the screen with hard-to-remove pop-ups or redirect links which lead the users to all sorts of advertising pages, which don’t have much to do with what the users are actually looking for. This is something very normal for most adware applications because they exist for the sole purpose of advertising and promoting certain products, services, and pages. They provide more publicity and increase sales chances for the distributors and the manufacturers, whose items have been displayed. The developers of such pieces of software typically earn income from all those banners, pop-up windows and sponsored links that get displayed on your screen with the help of reward systems such as Pay Per Click or Pay Per View. Those systems provide a small fee for each individual user click on a particular online advertisement. At the same time, while being completely legitimate, such methods of advertising and revenue-generating result in some quite unpleasant promotional practices such as automatic page-redirects and excessive exposure to pay-per-click ads, which, in turn, have gained adware the status of potentially unwanted software. That’s why many users prefer to uninstall applications like MixBuilder “Virus” and in this way save themselves from the ads invasion.

MixBuilder “Virus”

If not uninstalled on time, an application like MixBuilder “Virus” can become very annoying. But despite the fact its rather aggressive advertising practices tend to cause irritation and browsing disturbance among many users, this is not the worst that can be expected from such applications. In case you let adware like this one operate in your system for long, it is likely that, at some point, the machine’s performance may start to suffer. Sudden crashes in the system may begin to appear, the affected browser, as well as some other applications, may start to stop systematically, which is not only unpleasant but may be extremely bad for the important data that you did not have time to save. In addition, the changes that applications of this kind may often make to the system’s registry may significantly worsen the security mechanisms of your OS. As a result, you may be at risk of infection with a variety of viruses, Ransomware, Trojans, Spyware, etc. Not only that, but infection with such threats can also occur as a consequence of the constant redirects that MixBuilder  “Virus” initiates in your browser.


Name MixBuilder
Type  Adware
Danger Level Medium (nowhere near threats like Ransomware, but still a security risk)
Symptoms  This program typically displays sponsored ads all over the scren of the main browser.
Distribution Method Software bundling, free download sources, ads, spam, email attachments, shareware platforms.
Detection Tool

Remove MixBuilder “Virus”


We get asked this a lot, so we are putting it here: Removing parasite manually may take hours and damage your system in the process. We recommend downloading SpyHunter to see if it can detect parasite files for you.

The first thing you need to do is to Quit Safari (if it is opened). If you have trouble closing it normally, you may need to Force Quit Safari:

You can choose the Apple menu and click on Force Quit.

Alternatively you can simultaneously press (the Command key situated next to the space bar), Option (the key right next to it) and Escape (the key located at the upper left corner of your keyboard).

If you have done it right a dialog box titled Force Quit Applications will open up.

In this new dialog window select Safari, then press the Force Quit button, then confirm with Force Quit again.

Close the dialog box/window.



To remove parasite on your own, you may have to meddle with system files and registries. If you were to do this, you need to be extremely careful, because you may damage your system.

If you want to avoid the risk, we recommend downloading SpyHunter
a professional malware removal tool.

More information on SpyHunter, steps to uninstallEULAThreat Assessment Criteria, and Privacy Policy.

Start Activity Monitor by opening up Finder, then proceed to activity-monitor

Once there, look at all the processes: if you believe any of them are hijacking your results, or are part of the problem, highlight the process with your mouse, then click the “i” button at the top. This will open up the following box:


Now click on Sample at the bottom:


Do this for all processes you believe are part of the threat, and run any suspicious files in our online virus scanner, then delete the malicious files:

Drag and Drop Files Here to Scan
Maximum file size: 128MB.

This scanner is free and will always remain free for our website's users. You can find its full-page version at:

Scan Results

Virus Scanner Result


The next step is to safely launch Safari again. Press and hold the Shift key while relaunching Safari. This will prevent Safari’s previously opened pages from loading again. Once Safari is opened up, you can release the Shift key.

On the off chance that you are still having trouble with scripts interrupting the closing of unwanted pages in Safari, you may need to take some additional measures.

First, Force Quit Safari again.

Now if you are using a Wi-Fi connection turn it off by selecting Wi-Fi off in you Mac’s Menu. If you are using a cable internet (Ethernet connection), disconnect the Ethernet cable.


Re-Launch Safari but don’t forget to press and hold the Shift button while doing it, so no previous pages can be opened up. Now, Click on Preferences in the Safari menu,

Preferences in Safari

and then again on the Extensions tab,

extensions in safari

Select and Uninstall any extensions that you don’t recognize by clicking on the Uninstall button. If you are not sure and don’t want to take any risks you can safely uninstall all extensions, none are required for normal system operation.

The threat has likely infected all of your browsers. The instructions below need to be applied for all browsers you are using.

Again select Preferences in the Safari Menu, but this time click on the Privacy tab,
Privacy in Safari

Now click on Remove All Website Data, confirm with Remove Now. Keep in mind that after you do this all stored website data will be deleted. You will need to sign-in again for all websites that require any form of authentication.

Still in the Preferences menu, hit the General tab

General Tab in Safari

Check if your Homepage is the one you have selected, if not change it to whatever you prefer.
Default Home Page

Select the History menu this time, and click on Clear History. This way you will prevent accidentally opening a problematic web page again.

firefox-512 How to Remove MixBuilder From Firefox in OSX:

Open Firefoxclick on mozilla menu (top right) ——-> Add-onsHit Extensions next.

pic 6

The problem should be lurking somewhere around here –  Remove it. Then Refresh Your Firefox Settings.

chrome-logo-transparent-backgroundHow to Remove MixBuilder From Chrome in OSX:

 Start Chrome, click chrome menu icon —–>More Tools —–> Extensions. There,  find the malware and  select  chrome-trash-icon.

pic 8

 Click chrome menu icon again, and proceed to Settings —> Search, the fourth tab, select Manage Search Engines.  Delete everything but the search engines you normally use. After that Reset Your Chrome Settings.

If the guide doesn’t help, download the anti-virus program we recommended or try our free online virus scanner. Also, you can always ask us in the comments for help!

Leave a Comment