Mac Virus

Common Brand Mac

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

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Common Brand

Common Brand is an advertising software app that spams the browsers of Mac computers with unwelcome ads and tries to redirect users to sponsored sites. Common Brand belongs to the browser hijacker category and once it enters the browser, it introduces various unwanted changes to its settings.

Common Brand

The Common Brand Malware is on Mac.

This app is categorized as potentially unwanted by some experts but it must be mentioned that it does not pose a direct threat to the computers it is installed on. Unlike more serious forms of viruses like Trojans, Ransomware, or Spyware, browsers hijackers are mainly aimed at generating income for their developers through the implementation of paid ads and the promotion of certain sites that pay commission to whoever advertises them.

In short, if you have this app in your Safari, Firefox, Chrome or other browser, and if it has changed the browser’s search engine, toolbar, or homepage, there’s likely no need to be too concerned about all of this. Nevertheless, there are some aspects related to most hijacker apps that may make them potentially unsafe in the long run, which is why removing this software is still the best course of action.

Common Brand for Mac

Common Brand for Mac is a browser hijacker that can get installed inside Safari in order to modify its settings and turn it into an advertising platform. Common Brand for Mac is likely to modify the search engine of the browser and track your search history.

The information gained from the hijacker through the newly installed search engine and from your browsing history allows the unwanted app to then display ads on your screen that seem to promote products that you may be interested in. Whether the ad links to a page where the advertised product is being sold, however, is not guaranteed. It is, for example, possible to see a pop-up on your screen while browsing that advertises an item you might like to buy. However, upon clicking on the pop-up, you may end up getting redirected to a page that sells a totally different product or maybe even to a site that doesn’t sell anything. Unfortunately, such unreliable ads may even land you on web locations that spread malware and viruses such as Ransomware and Trojans.

What is Common Brand?

Common Brand is a potentially unwanted app that some experts categorize as malware because of its ability to hijack the settings of Mac browsers. Common Brand doesn’t allow the Mac’s user to reverse the changes that the unwanted app has made in the browser.

The only truly reliable way of restoring your browser to its normal state is through the uninstallation of Common Brand and the removal of all of its components from the computer.

The CommonBrand app

The CommonBrand app is an aggressive ad-generating app that is capable of automatically opening new tabs and pages in your browser and causing page redirects to unknown sites. The CommonBrand app won’t harm your Mac but it may expose it to malware dangers through its redirects.

If you want to make sure that your browser doesn’t get spammed with questionable and potentially unsafe adverts, our advice is to complete the guide offered below and, if need be, use the suggested anti-malware tool that you will find linked there. 


Name Common Brand
Type Browser Hijacker
Danger Level Medium (nowhere near threats like Ransomware, but still a security risk)
Symptoms The main browser hijacker symptoms are sudden redirects in the browser as well as unwanted changes in its settings.
Distribution Method Possible methods of distribution are the use of file bundles, spam letters, misleading ads, and more.
Detection Tool

Common Brand Mac Removal

For a quick way to remove Common Brand try to do this inside your Mac browser:

  1. Open your Mac browser.
  2. Go to Preferences.
  3. Now navigate to the extensions sub-menu.
  4. Look for any unfamiliar entries, including Common Brand.
  5. Remove Common Brand from your Mac as well as any other suspicious-looking items by clicking on the trash bin icon.

If this does not help then continue reading this article for more detailed instructions on how to get rid of Common Brand!


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 ComboCleaner 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 ComboCleaner
a professional malware removal tool.

More information on ComboCleaner, steps to uninstallEULA, 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:

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Maximum file size: 128MB.

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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 Common Brand 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 Common Brand 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!

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