Mac Virus

Mshelper CPU “Malware” Mac Removal

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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Mshelper is a representative of a specific type of software known as browser hijackers which might be able to impose some modifications to your browser once it becomes a part of your system. The way your Chrome, Firefox, Safari, Opera (or any other browser) may get affected by this program may include the installation of some new search engine, the addition of a new toolbar or the replacement of your default homepage/new-tab page.

Hijacker applications are also known for triggering redirects to different pages for the purpose of promoting them as well as generating intrusive ads, banners, and pop-ups. Mshelper may launch a redirecting service and modify your search results in such a way that every time you browse for something you will be sent to certain sponsored websites, platforms or offers which may not be relevant to your actual searches. The moment you land on a certain page, your screen may become covered with different blinking boxes, ads, new tabs and commercial messages, which may be difficult to remove no matter how hard you try to close them.

Fortunately, on this page, we may be able to offer you a quick and reliable solution to the browsing disturbance, caused by Mshelper. That’s why, we suggest you read the information that follows and take a look at the Removal Guide below. It contains step-by-step instructions which are specifically developed to help you uninstall this browser hijacker from your system and get your Chrome, Firefox, Safari (or any other browser) back to normal.

Why is Mshelper causing you disturbance?

Despite not being actual computer threats, programs like Mshelper are a common source of disturbance for many online users. The reason is they can take over your browser without your actual approval and may impose certain modifications which may negatively affect the way you normally browse the Internet. Usually, the purpose of such programs is to examine your online behavior and extract some marketing-related data which could be used for targeted advertising.

The moment it becomes part of your system, a piece of software like Mshelper may install a new homepage or a new search engine to the targeted browser, thus replacing the old ones. It may also have access to your browsing history, latest search queries, likes, shares, location, language, bookmarks and similar browsing related information and try to determine what products, services or interests you might have. Based on that, this program may try to display certain ads on your screen or redirect you to sponsored pages which would supposedly be relevant to your preferences.

Fortunately, nothing harmful or fatal would typically result from such activity. Even if you have detected Mshelper on your Macbook, your files and your system should not be under any direct danger because the intentions of this program are likely solely marketing-oriented. Unlike viruses such as Ransomware, Trojans or Spyware, which can cause plenty of problems, the browser hijackers usually do not contain malicious code and normally cannot harm your data or your device. However, the data tracking and ad-generation processes they may initiate may significantly affect with your normal browsing in a negative way and contribute to the slowdown of your system’s performance and browsing speed. This is the main reason why most people prefer to remove such software and uninstall all of its components.

What are the most typical sources of browser hijackers?

Ad-producing software such as browser hijackers, adware, and different ad-supported tools may be found on many web locations. The developers usually bundle them with different freeware programs and distribute them as optional additions to the main program. The usual places where users may download bundles with page-redirecting applications like Mshelper include torrent sites, freeware or shareware platforms, free download links, automatic installation managers and any form of online spam. However, simply downloading a program installer with a hijacker in it is typically not enough for the unwanted software to get inside the system. Most users actually install the hijackers without knowing it when running the installation of the main program from the installer file. In most of the cases, users use the Automatic/Quick installation options without reading the EULA and customizing the setup process. This often lands them the any software that might have been added to the installer including bundled hijackers.

How to remove Mshelper and avoid future contaminations?

Browser hijackers are, fortunately, relatively easy to remove. Unlike threats such as Ransomware, Trojans or other nasty computer viruses, these irritating page-redirects can be uninstalled even by a non-experienced computer user as long as some basic removal instructions are followed. In the Removal Guide below, we have listed the exact removal steps that you’d need to complete with added screenshots so we suggest you use them if you want to get rid of Mshelper.


Name Mshelper
Type Browser Hijacker
Danger Level Medium (nowhere near threats like Ransomware, but still a security risk)
Symptoms Your web browsing may start getting frequently interrupted by sudden page redirects, ads, pop-ups and banners. 
Distribution Method Software bundles, ads, free download links, torrents, spam messages and attachments, freeware or shareware sites. 
Detection Tool

Mshelper CPU “Malware” 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 Mshelper 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 Mshelper 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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