Mac Virus

Search Marquis Virus

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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What is Search Marquis?

Search Marquis is a browser hijacker that automatically redirects Mac users to Bing and/or makes Bing their default search engine without permission. Search Marquis shouldn’t be kept in the browser because its activities may sometimes expose your Mac to Trojans or other threats.

What is Search Marquis

We have recieved complaints from some of our users about Search Marquis.

Speaking about such apps, here is a good example of a program that may cause browsing irritation instead of helping you improve your web experience. The program is called Search Marquis and it may initially look like a useful add-on for popular browsers like Safari, Chrome, and Firefox. However, the moment it gets installed in the system, it typically places some changes on the browser’s settings – it changes the homepage URL, adds a new search engine, some new toolbars, and page-redirect buttons. In addition to that, the program starts to display various aggressive commercials all over the screen. They come in the form of ads, pop-ups, banners, colorful boxes and similar promotional materials which stick to the screen and are hard to remove. Many web users don’t pay enough attention to their browser security and are careless with regard to the apps and add-ons they integrate with their browsers. However, it is not advisable to add browser components and attachments to your browser that you don’t need, as well as ones that can make unwanted changes to your browser’s settings and that negatively affect your browsing experience.

Programs like Search or are something that many web users encounter regularly. These pieces of software are known in the cyber circles as Browser Hijackers but a lot of people mistake them for viruses and put their name next to threats like Ransomware or Trojans. The annoyed users report that apps like Search Marquis take over their main browser without asking for approval, and that they start to spam their screen with different promotional messages, pop-ups, banners, pay-per-click ads, and automatic page-redirects to different unfamiliar sites.

The Search Marquis Virus on Mac

The Search Marquis Virus is a type of Mac browser hijacker of the Bing redirect variety. The Search Marquis Virus on Mac sets Bing as the default homepage, new-tab page, or search engine, and it redirects the users to advertising-filled sites.

Search Marquis Virus

The Search Marquis Virus will redirect your searches and will display Pop-up ads.

If this is something familiar to you, and if you have been experiencing it lately, then you should stay with us and learn how to uninstall the annoying browser hijacker and remove all of its changes. Now, before you panic too much, it is important to say that having a program like Search Marquis on your system isn’t a particularly serious issue. Nevertheless, the presence of such software may be irritating and may lead to some quite unpleasant consequences. For instance, one of these consequences could be the accidental encounter with malicious advertisements (or malvertisements), which could be used to spread real computer threats such as Viruses, Ransomware, Trojans and other malware.

Using the browser’s settings menu to change your preferences after they have been modified by the Browser Hijacker is unlikely to help you deal with the hijacker. This is because the moment you start a new browsing session, the hijacker would typically reintroduce its settings and would start to redirect you to the pages it promotes.

To stop that, you will either need to tinker with the settings of your system to fully eliminate the unwanted program, or use a professional removal tool to permanently get rid of the hijacker. Whichever method you choose, we’ve got you covered. Below, you will find a detailed removal guide with step-by-step instructions, and an automatic scanner, which you can use to detect Search Marquis and deal with it.


Name Search Marquis
Type Browser Hijacker
Danger Level Medium (nowhere near threats like Ransomware, but still a security risk)
Symptoms  A change in the browser’s homepage or the main search engine are typical symptoms of Browser Hijackers.
Distribution Method Software bundles, torrents, ads, freeware sites, shareware platforms, automatic installers.
Detection Tool

Search Marquis Virus Removal

For a quick way to remove Search Marquis 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 Search Marquis.
  5. Remove Search Marquis 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 Search Marquis!


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.

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 Search Marquis 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 Search Marquis 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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