Mac Virus

“Your mac is infected with 3 viruses” Virus Removal (Dec. 2018 Update)

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. 

Download ComboCleaner Anti-Malware

More information about ComboCleaner and steps to uninstall. Please review ComboCleaner's EULA and Privacy Policy. Keep in mind, only ComboCleaner’s scanner is free. If it detects a malware, you'll need to purchase its full version to remove it.


“Your mac is infected with 3 viruses”

Every web user wants to surf the Internet as fast and as easy as possible, without getting interrupted by annoying ads, pop-ups, blinking boxes, banners and random page redirects after each and every click. With the increased demand for online advertising in the past several years, however, the peaceful web browsing has been becoming more and more difficult. The advertising campaigns which the online marketers use are becoming more and more aggressive and so is the software that helps them launch these campaigns. Tools such as browser hijackers, adware and other ad-generating applications are commonly used to invade users’ browsers and push various intrusive commercials on their screen. Such applications are commonly referred to as potentially unwanted and a lot of people are actively looking for ways uninstall them from their PC in order to remove the annoying ads. The good news is that these potentially unwanted applications do not typically represent a security and normally have no malicious code. Therefore, dealing with them is much easier than dealing with real viruses such as Ransomware, Trojans, Spyware, etc.

In this article, we will focus on one particular application of this type called “Your mac is infected with 3 viruses”. This piece of software acts as a page-redirecting browser hijacker and usually imposes some changes on the users’ default browser (be it Chrome, Firefox, IE, Edge or some other one) in an attempt to push its ads. It typically sets new homepage settings, replaces the main search engine or installs a new a toolbar without being authorized to do so. “Your mac is infected with 3 viruses” may also launch a stream of different ads, pop-ups, banners and commercial messages on the screen, this way, making the user’s online experience unpleasant and obstructed. The most irritating activity, however, is the page-redirecting service, which this hijacker may initiate. This application may automatically redirect users to random web pages and new tabs with aggressive promotional content, leaving them unable to browse their actual searches. There could be a number of other browsing-related issues, which may come as a result from the presence of “Your mac is infected with 3 viruses” on the people’s computers and, in the next lines, we will tell you more about them. If you are facing any of the above-mentioned disturbances and would like to get rid of the intrusive software that is causing them, stay tuned for our Removal Guide which is available below. The screenshots and the instructions provided there will help you uninstall “Your mac is infected with 3 viruses” and remove all of its annoying browser changes and ads without the need to be a computer expert.

Aggressive online advertising

A browser hijacker is a type of software which is dedicated to one purpose – to advertise. Every activity that such a piece of software could perform comes down to that one purpose and there is a strong reason for that. Basically, each click on a pop-up, banner or page-redirecting link that the user makes brings revenue to the hijacker’s creators in the form of a Pay-Per-Click or Pay-Per-View payments while at the same time it also generates traffic and exposure to the products, services and items, displayed on the screen. Both, the creators of applications like “Your mac is infected with 3 viruses” and the people whose products are getting promoted benefit from this activity as each of them achieves their goal. The first ones earn money from the clicks on the displayed ads and the latter place their advertisements directly on the users’ screen and get them redirected to their web pages. The changes in the browser’s search engine, the homepage and the new tab pages are just part of the advertising strategy. Hardly any of all these activities, however, would actually benefit you as a user. Not only may you have to face the imposed changes of your browser settings, but you may also have to deal with the modified search results, the page-redirects and the hard-to-remove ads every time you try to surf the web through the affected browser.

Other possible issues you may face may include browser unresponsiveness, sluggishness, screen-freezing and even some sudden crashes, typically caused by the excessive amount of ads which the hijacker tries to push on your screen. Applications like “Your mac is infected with 3 viruses” may also launch a data-tracking activity in the background with the purpose of monitoring your recent searches, most visited pages, liked content, bookmarks and shares. Fortunately, the purpose of this data-collection isn’t to have your data encrypted or stolen (which would be the case if you are infected with a Ransomware or a Trojan virus) but to provide the advertisers with a better understanding of your interests so that they can optimize the advertising content according to your searches. This practice is generally not considered to be illegal but it might be seen as a privacy invasion as well as a yet another good reason to have the browser hijacker uninstalled.

Name “Your mac is infected with 3 viruses”
Type Browser Hijacker
Danger Level Medium (nowhere near threats like Ransomware, but still a security risk)
Symptoms Frequent browsing interruptions caused by intrusive ads generation and  page redirects. 
Distribution Method Free download links, torrents, freeware and shareware sites, ads, software bundles, autoamtic installation managers. 
Detection Tool

“Your mac is infected with 3 viruses” Removal


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:

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 “Your mac is infected with 3 viruses” 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 “Your mac is infected with 3 viruses” 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