Mac OS X Is Infected (4) By Viruses POP-UP Scam (Mac)

Also Known As: "Mac OS X is infected (4) by viruses" virus
Type: Mac Virus
Distribution: Low
Damage level: Medium

How to remove "Mac OS X is infected (4) by viruses" from Mac?

What is "Mac OS X is infected (4) by viruses"?

"Mac OS X is infected (4) by viruses" is a typical virus alert, pop-up windows of this type appear only on various untrustworthy, deceptive websites. Typically, people visit websites of this type unintentionally, they are redirected by potentially unwanted applications (PUAs). These apps not only cause unwanted redirects, but often deliver various advertisements and collect browsing-related information.

Mac OS X is infected (4) by viruses scam

"Mac OS X is infected (4) by viruses" pop-up window tells people that their Mac computers are infected/operating systems are damaged. It urges users to take immediate action, to scan system for viruses as soon as possible and also encourages them not to ignore this warning. It gives only one option, to click the "OK" button. When clicked, it opens another pop-up window called "Security Recommendation for Macs". It says that a system may be vulnerable and a user should consider scanning it for viruses. According to it, scanning the operating system for viruses will make sure that information such as: credit card and banking details, email and other account passwords, Facebook, Skype and other chat logs, photos and various other data, and a webcam are safe/secure. This pop-up is encouraging to download and install potentially unwanted apps like MacKeeper for that. If the "Start Now" button is clicked, it starts a download and installation process of some PUA that supposed to be a ant-virus or some other similar tool.

As we mentioned in introduction, it is already installed unwanted apps that usually cause redirects to deceptive websites used to promote other unwanted, potentially malicious apps. However, redirects to untrustworthy websites is not the only problem. Most PUAs gather various information as well: IP addresses, geo-locations, search queries, URLs of visited websites and so on. In some cases they target personal/private information too. Their developers regularly share all gathered data with third parties (potentially, cyber criminals) who misuse it to generate revenue. Such behaviour (of both PUAs and their developers) might cause various problems related to privacy, browsing safety or even identity theft. Furthermore, it is known that many PUAs are designed to feed their involuntary users with various coupons, banners, surveys, pop-ups and other intrusive ads. These ads usually are really annoying and, if clicked, they often open unreliable websites, or even run scripts that download/install other unwanted apps. If there is a reason to think that there is an app of this type installed, we recommend to remove/uninstall it as soon as possible.

It would be difficult to count all the deceptive websites that are designed to display one or another scam. However, here are a couple of examples: "Apple.com-clean-os.live", "APPLE.COM RECOMMENDS" and "Your OSX 10.11 El Capitan Is Infected With 3 Viruses!". As a rule, these scams are designed to trick people into downloading and installing unwanted software. Such software usually is presented as legitimate, however, none of the websites (or apps promoted through them) should be trusted.

How did potentially unwanted applications install on my computer?

As a rule, unwanted apps get installed because people click intrusive ads or install/download software without paying attention to details. Very often developers use a "bundling" method that allows them to trick people into downloading/installing unwanted apps together with some software that they downloaded/installed on purpose. They hide information about unwanted apps being bundled (included) in "Custom", "Advanced" and other similar parts of software download or installation setups. The problem is that there are many people who install or download software in a hurry and leave all available settings unchanged/unchecked, and that is how they cause unwanted installations/downloads of various PUAs.

How to avoid installation of potentially unwanted applications?

It is recommended to download all software using only official and trustworthy sources (including direct links). Third party software downloaders, installers, Peer-to-Peer networks like torrent clients, eMule, unofficial websites and other similar sources should not be used. Additionally, we recommend to always check every available option (such as "Custom", "Advanced" and other similar section) of any download/installation setup. In other words, dismiss offers to download/install unwanted apps before finishing download/installation process. Various intrusive ads should not be trusted, they often redirect users to untrustworthy websites, such as pornography, gambling, adult dating and other questionable websites. If unwanted redirects or intrusive ads are encountered often, then it would be a good idea to check if there are no unwanted plug-ins, extensions or add-ons installed on a browser, or programs on a computer/operating system. All unwanted entries should be uninstalled as soon as possible. If your computer is already infected with PUAs, we recommend running a scan with Spyhunter for Windows to automatically eliminate them.

Text presented in the first pop-up window:

ATTENTION!
Your Mac OS X is infected (4) by viruses and Your system is damaged, You must clean the system from viruses, as quick as possible! Do not ignore this warning!

Screenshot of a second pop-up displayed by this deceptive website:

pop-up that appears after clicking OK button

Text presented in a second pop-up window:

Security Recommendation for Macs
Consider running a virus scan on your Mac.
Your system may be vulnerable after you visit risky websites.
Make sure that your sensitive data isn't exposed:
Secure your credit card details and banking information.
Protect your email password and other account passwords.
Safeguard your Facebook, Skype, AIM, and other chat logs.
Keep safe your private photos, family photos, and other files.
Ensure your webcam canít be accessed remotely.
We highly recommend using Mac security utility to detect and remove malware, adware, viruses, and suspicious apps.
How to Remove:
Step 1: Click the button below to download and install App.
Step 2: Run App and remove all potential viruses immediately.

Instant automatic removal of Mac OS X is infected (4) by viruses virus: Manual threat removal might be a lengthy and complicated process that requires advanced computer skills. Spyhunter is a professional automatic malware removal tool that is recommended to get rid of Mac OS X is infected (4) by viruses virus. Download it by clicking the button below:
▼ DOWNLOAD Spyhunter By downloading any software listed on this website you agree to our Privacy Policy and Terms of Use. Free scanner checks if your computer is infected. To remove malware, you have to purchase the full version of Spyhunter.

Quick menu:

Video showing how to remove adware and browser hijackers from a Mac computer:

Potentially unwanted applications removal:

Remove potentially unwanted applications from your "Applications" folder:

mac browser hijacker removal from applications folder

Click the Finder icon. In the Finder window, select "Applications". In the applications folder, look for "MPlayerX", "NicePlayer", or other suspicious applications and drag them to the Trash. After removing the potentially unwanted application(s) that cause online ads, scan your Mac for any remaining unwanted components.

Remove "mac os x is infected (4) by viruses" virus related files and folders:

Finder go to folder command

Click the Finder icon, from the menu bar. Choose Go, and click Go to Folder...

step1Check for adware-generated files in the /Library/LaunchAgents folder:

removing adware from launch agents folder step 1

In the Go to Folder... bar, type: /Library/LaunchAgents

removing adware from launch agents folder step 2
In the “LaunchAgents” folder, look for any recently-added suspicious files and move them to the Trash. Examples of files generated by adware - “installmac.AppRemoval.plist”, “myppes.download.plist”, “mykotlerino.ltvbit.plist”, “kuklorest.update.plist”, etc. Adware commonly installs several files with the same string.

step2Check for adware generated files in the /Library/Application Support folder:

removing adware from application support folder step 1

In the Go to Folder... bar, type: /Library/Application Support

removing adware from application support folder step 2
In the “Application Support” folder, look for any recently-added suspicious folders. For example, “MplayerX” or “NicePlayer”, and move these folders to the Trash.

step3Check for adware-generated files in the ~/Library/LaunchAgents folder:

removing adware from ~launch agents folder step 1


In the Go to Folder bar, type: ~/Library/LaunchAgents

removing adware from ~launch agents folder step 2

In the “LaunchAgents” folder, look for any recently-added suspicious files and move them to the Trash. Examples of files generated by adware - “installmac.AppRemoval.plist”, “myppes.download.plist”, “mykotlerino.ltvbit.plist”, “kuklorest.update.plist”, etc. Adware commonly installs several files with the same string.

step4Check for adware-generated files in the /Library/LaunchDaemons folder:

removing adware from launch daemons folder step 1
In the Go to Folder... bar, type: /Library/LaunchDaemons

removing adware from launch daemons folder step 2
In the “LaunchDaemons” folder, look for recently-added suspicious files. For example “com.aoudad.net-preferences.plist”, “com.myppes.net-preferences.plist”, "com.kuklorest.net-preferences.plist”, “com.avickUpd.plist”, etc., and move them to the Trash.

step 5 Scan your Mac with Combo Cleaner:

If you have followed all the steps in the correct order you Mac should be clean of infections. To be sure your system is not infected run a scan with Combo Cleaner Antivirus. Download it HERE. After downloading the file double click combocleaner.dmg installer, in the opened window drag and drop Combo Cleaner icon on top of the Applications icon. Now open your launchpad and click on the Combo Cleaner icon. Wait until Combo Cleaner updates it's virus definition database and click "Start Combo Scan" button.

scan-with-combo-cleaner-1

Combo Cleaner will scan your Mac for malware infections. If the antivirus scan displays "no threats found" - this means that you can continue with the removal guide, otherwise it's recommended to remove any found infections before continuing.

scan-with-combo-cleaner-2

After removing files and folders generated by the adware, continue to remove rogue extensions from your Internet browsers.

"Mac OS X is infected (4) by viruses" virus removal from Internet browsers:

safari browser iconRemove malicious extensions from Safari:

Remove "mac os x is infected (4) by viruses" virus related Safari extensions:

safari browser preferences

Open Safari browser, from the menu bar, select "Safari" and click "Preferences...".

safari extensions window

In the preferences window, select "Extensions" and look for any recently-installed suspicious extensions. When located, click the "Uninstall" button next to it/them. Note that you can safely uninstall all extensions from your Safari browser - none are crucial for normal browser operation.

  • If you continue to have problems with browser redirects and unwanted advertisements - Reset Safari.

firefox browser iconRemove malicious plug-ins from Mozilla Firefox:

Remove "mac os x is infected (4) by viruses" virus related Mozilla Firefox add-ons:

accessing mozilla firefox add-ons

Open your Mozilla Firefox browser. At the top right corner of the screen, click the "Open Menu" (three horizontal lines) button. From the opened menu, choose "Add-ons".

removing malicious add-ons from mozilla firefox

Choose the "Extensions" tab and look for any recently-installed suspicious add-ons. When located, click the "Remove" button next to it/them. Note that you can safely uninstall all extensions from your Mozilla Firefox browser - none are crucial for normal browser operation.

  • If you continue to have problems with browser redirects and unwanted advertisements - Reset Mozilla Firefox.

chrome-browser-iconRemove malicious extensions from Google Chrome:

Remove "mac os x is infected (4) by viruses" virus related Google Chrome add-ons:

removing malicious google chrome extensions step 1

Open Google Chrome and click the "Chrome menu" (three horizontal lines) button located in the top-right corner of the browser window. From the drop-down menu, choose "More Tools" and select "Extensions".

removing malicious Google Chrome extensions step 2

In the "Extensions" window, look for any recently-installed suspicious add-ons. When located, click the "Trash" button next to it/them. Note that you can safely uninstall all extensions from your Google Chrome browser - none are crucial for normal browser operation.

  • If you continue to have problems with browser redirects and unwanted advertisements - Reset Google Chrome.