MacOS:BitCoinMiner-AS Removal

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.



Browser hijackers are a type of software primarily used for promotional and advertising purposes by their creators. However, due to their irritating and invasive nature, most such hijackers are regarded as PUPs (potentially unwanted programs). In today’s article, we will be focusing on MacOS:BitCoinMiner-AS – a hijacker-like page redirect that has the ability to alter your browser’s homepage or search engine as well as redirect you to different sites that you might note really want to visit.

Aside from that, the browser redirect might also be able to show various web-ads on your screen and generate unwanted web offers, prompting you to click on them. But this is not the worst of it – MacOS:BitCoinMiner-AS as the name suggests would mine cryptocurrency without your explicit knowledge nor approval. Unfortunately, it doesn’t really matter what browser you typically use, MacOS:BitCoinMiner-AS is likely capable of affecting any browser program that you can think of – Chrome, Safari, Mozilla, or any other. If you are currently struggling with this page redirect and you want to have it removed from your machine, be sure to read the next paragraphs and then visit our removal guide located at the bottom of this post where you will find the necessary instructions for uninstalling and fully eliminating the pesky MacOS:BitCoinMiner-AS.

What you need to know about hijackers/browser-redirects

If your browser has gotten invaded by MacOS:BitCoinMiner-AS, then you have likely already witnessed the potential changes that it could enforce upon one’s browsing program. In the beginning of the article, we mentioned what the main purpose of a hijacker is – advertising. The reason why such page redirects might be try to open random sites on your browser that you don’t want to visit or change your homepage and search engine is because that way, the hijacker’s creator is able to gain revenue by promoting certain websites, online services, Internet stores and even software products. After all, the online marketing industry is huge and there’s a lot of money that can be gained from there.

The problem here is that such hijackers are hardly ever developed in a way that would actually please the end-user. You see, the hijacker might be promoted as being a helpful browser add-on that would provide you with safer, faster or more optimized online experience but most of the time this is not the case. We already listed some of the potential inconveniences that a hijacker might cause and bear in mind that there could potentially be even more unpleasant consequences coming from such a software. Because of this, we believe that getting rid of the hijacker is typically the best course of action which is why we have prepared a detailed guide with instructions that will help you manually remove this page redirect from your computer so that it no longer disturbs your Internet experience.

Is there any danger?

Typically, there’s no reason to be overly-concerned with the presence of a hijacker on your computer system. As soon as you remove it, any unpleasant effects that it might be having on your PC should go away. However, you must understand that even though MacOS:BitCoinMiner-AS isn’t some kind of dangerous Trojan Horse or Ransomware virus, it is still preferable if you keep away from any content that gets displayed by it on your screen. The hijacker itself shouldn’t be harmful but the potential ads and offers that it generates for your browser might not always be reliable or safe. You can never know what’s actually hidden behind a certain pop-up or banner created by the hijacker and since those could be coming from all kinds of shady and questionable advertising networks, it is simply better to avoid interacting with them for the sake of your computer’s safety.

Keeping hijackers and page redirects away from your computer

There are several rules that you will need to bear in mind and adhere to if you really wish to protect your PC not only against hijackers like MacOS:BitCoinMiner-AS but also against more problematic software such as malicious Ransomware viruses and Trojan Horse malware. The first and most important thing is to never go to web locations and click on stuff online if you aren’t sure that those are safe. Be sure to avoid lurking too deep into the depths of the online world as there are all sorts of dangers out there. Also, be sure to keep away from the various flashy banners, suspicious web offers and spam messages that you are likely to come across at a certain point. In addition, make sure to always customize the installation of software that you want to install on your computer – in many cases hijackers the likes of MacOS:BitCoinMiner-AS get bundled with other programs and if you do not uncheck them from the setup menu, they would get installed along the main thing without you even knowing about it. Lastly, it is always a good idea to keep a strong antivirus on your machine that has its latest updates installed for maximum protection. As an additional measure, you might also get a specialized anti-malware tool to keep you safe while browsing the Internet.


Name MacOS:BitCoinMiner-AS
Type Browser Hijacker
Danger Level Medium (nowhere near threats like Ransomware, but still a security risk)
Symptoms Changed search engine, new-tab page or hompage of your browser as well as irritating and frequent page redirects and web ads displayed on your screen.
Distribution Method Most hijackers are getting distributed via file-bundles, misleading Internet adverts and spam messages.
Detection Tool

MacOS:BitCoinMiner-AS 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 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 MacOS:BitCoinMiner-AS 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 MacOS:BitCoinMiner-AS 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