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 untrustworthy, deceptive websites. Typically, people visit these sites unintentionally - they are redirected by potentially unwanted applications (PUAs), which cause unwanted redirects, deliver advertisements, and collect browsing-related information.

Mac OS X is infected (4) by viruses scam

The "Mac OS X is infected (4) by viruses" pop-up window informs people that their Mac computers are infected and operating systems are damaged. It urges users to take immediate action and to scan the system for viruses. It also encourages them not to ignore this warning and gives just one option: to click the "OK" button. When clicked, another pop-up window called "Security Recommendation for Macs" opens and states that the system could be vulnerable and the user should consider scanning it for viruses. It goes on to state that scanning the operating system for viruses will ensure that information such as credit card/banking details, emails and account passwords, Facebook, Skype and other chat logs, photos, other data, and the webcam are safe and secure. This pop-up encourages users to download and install potentially unwanted apps such as MacKeeper for this purpose. If the "Start Now" button is clicked, it starts the download/installation process of a PUA, which is supposedly anti-virus software or another such tool.

Installed PUAs usually cause redirects to deceptive websites, which are used to promote other unwanted, potentially malicious apps. These redirects to untrustworthy websites are not the only problem. Most PUAs gather information such as IP addresses, geo-locations, search queries, URLs of visited websites, and so on. In some cases, they target personal/private information. Developers share the data with third parties (potentially, cyber criminals) who misuse it to generate revenue. The behaviour of PUAs and their developers can lead to problems relating to privacy, browsing safety, or even identity theft. Furthermore, many PUAs feed unsuspecting users with coupons, banners, surveys, pop-ups, and other intrusive ads. These are annoying and, if clicked, often open dubious websites or even run scripts that download/install other unwanted apps. If you believe an app of this type is installed, remove it immediately.

Threat Summary:
Name"Mac OS X is infected (4) by viruses" virus
Threat TypeMac malware, Mac virus
SymptomsYour Mac became slower than normal, you see unwanted pop-up ads, you get redirected to shady websites.
Distribution methodsDeceptive pop-up ads, free software installers (bundling), fake flash player installers, torrent file downloads.
DamageInternet browsing tracking (potential privacy issues), displaying of unwanted ads, redirects to shady websites, loss of private information.
Removal

To eliminate Mac OS X is infected (4) by viruses virus our malware researchers recommend scanning your computer with Combo Cleaner.
▼ Download Combo Cleaner
Free scanner checks if your computer is infected. To remove malware, you have to purchase the full version of Combo Cleaner.

The number of deceptive websites designed to promote scams is countless, however, some examples include "Apple.com-clean-os.live", "APPLE.COM RECOMMENDS", and "Your OSX 10.11 El Capitan Is Infected With 3 Viruses!". Generally, these scams trick people into downloading and installing unwanted software. The software is usually presented as legitimate, however, none of these websites (or apps promoted through them) should be trusted.

How did potentially unwanted applications install on my computer?

Generally, unwanted apps are installed due to people clicking intrusive ads or installing/downloading software without paying attention to the details. Developers use the "bundling" method, which allows them to trick people into downloading/installing unwanted apps together with regular software that they wish to download and install. They hide information about the bundling of unwanted apps in "Custom", "Advanced" and other similar parts of the software download or installation set-ups. Furthermore, many people install or download software in a hurry and leave available settings unchanged - this is how they cause unwanted installation/download of PUAs.

How to avoid installation of potentially unwanted applications?

You are advised to download all software using official and trustworthy sources (including direct links). Third party software downloaders, installers, Peer-to-Peer networks such as torrent clients, eMule, unofficial websites, and other similar sources should not be used. Additionally, check each available option (such as "Custom", "Advanced" and other similar sections) of any download/installation setup. Dismiss offers to download/install unwanted apps before finishing the download/installation process. Various intrusive ads should not be trusted, since they often redirect users to untrustworthy websites, such as pornography, gambling, adult dating, and other dubious websites. If you encounter unwanted redirects or intrusive ads, check for unwanted plug-ins, extensions, and add-ons installed on the browser, and programs on the computer/operating system. Remove all unwanted entries immediately. If your computer is already infected with PUAs, we recommend running a scan with Combo Cleaner Antivirus for macOS 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. Combo Cleaner 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 Combo Cleaner for Mac 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 Combo Cleaner.

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.