Home > Scam > System Mac OS is infected Pop-Up Scam Removal
THREAT REMOVAL

System Mac OS is infected Pop-Up Scam Removal

What Is “System Mac OS is infected”?

The “System Mac OS is infected” pop-up belongs to a fake tech support scam trying to convince you that your Mac device is infected.

What Is a Fake Tech Support Scam?

Technical support scams are a fraudulent attempt to get money out of unsuspecting victims. These scammers pose as technical support experts, creating fake pop-ups that resemble error messages, or setting up bogus “help lines” on websites they control. They use social engineering tactics and deceptive confidence tricks to make the victim believe their device has serious issues that require payment to fix. Payments are taken in a way that makes it difficult to trace and get a refund, often through gift cards.

System Mac OS is infected Pop-Up Scam Removal

System Mac OS is infected Details

Name "System Mac OS is infected"
Type PUP/Rogue Application/Tech-Support Scam
Short Description Mcatotalpro.com is a tech-support scam that claims your computer is infected by viruses.
Symptoms Modified system settings and files; pop-ups in the browser
Distribution Method Freeware Installers, Suspicious Sites
Detection Tool See If Your System Has Been Affected by malware

Download

Malware Removal Tool

How Did I Get Infected by “System Mac OS is infected”?

The “System Mac OS is infected” pop-up browser scam is being distributed due to unsafe browsing habits. It is important to be aware of the risks associated with browsing the internet, particularly when visiting unknown or suspicious websites, as not having adequate protection can leave your computer vulnerable. Furthermore, websites can be hijacked, resulting in unexpected advertisements and redirect links. As a result, you can be redirected to suspicious scam pages which could trigger various fake virus warnings.

Freeware applications and PUPs (potentially unwanted programs) could also distribute tech-support scams, and could cause the scareware message to appear in your browsers. Free download websites usually feature tons of third-party installations and bundled installers – a practice which is done with monetizaton in mind.

Tech support scams are unfortunately rife, with “System Mac OS is infected” being only one of many fake pop-ups that seek to deceive unsuspecting users. Although the exact request may change, they all have one thing in common: to have you do something that would put your device at risk. Regardless of the operating system – whether it be Windows, macOS, iOS or Android – no one is immune to these unscrupulous tactics.

“System Mac OS is infected” – What Does It Do?

Scammers are using fake virus detections and warnings to create the sense of urgency and to make you dial a specific phone number or perform another action that exposes your online security. There’s no telling what could happen next, especially if you permit remote assistance or reveal sensitive information, such as your payment data.

To make their scams more believable, scammers tend to feature the logos of trustworthy companies such as Microsoft, Google, and Apple, or anti-virus software companies such as McAfee and Avira. However, seeing the logo of a popular company (in this case, Apple) shouldn’t trick you in any way, since these companies do not deploy such methods to alert their users of issues. This is what tech support scammers do in their desperate attempts to trick users into performing specific actions.

Be wary of tech support scams, as there have been reports of scammers calling unsuspecting customers to make them believe they are part of a legitimate tech support team for Microsoft or Apple. While these nefarious actors may be adept at what they do, it is still important to remember that these calls are all a lie. In fact, many call centers have been set up to employ people specifically to impersonate tech support staff as this is a highly profitable and fruitful business. It is thus important to remain vigilant and not fall for any of their tricks.

Is “System Mac OS is infected” a Virus?

No, this is not a virus but rather a scam that wants to make you believe that your system has a virus. Don’t worry, as this is just a scareware approach to push you into performing a specific action, like downloading a rogue software program. Refrain from interacting with any of the content that this scam triggers.

How to Protect My Computer from Scams in the Future?

“System Mac OS is infected” is a tech-support scam. The fact that you landed on this page means that your safe browsing is exposed. These are some steps you can follow to improve your online hygiene:

  1. Change all your passwords from a safe device.
  2. Enable two-factor authentication for the online services you use.
  3. Call your bank to change all credit card information if you use your computer for online payments.
  4. Change your Wi-Fi password.
  5. Install a reputable anti-malware protection app on all your devices.
  6. Do not download apps from unknown sources and do not visit suspicious websites.

Remove “System Mac OS is infected” Scam

If you want to remove the “System Mac OS is infected” scam, we recommend that you use an anti-malware program. With such an anti-malware program, your computer will remain with a better protection and stay healthy performance-wise in the future.

Milena Dimitrova

An inspired writer and content manager who has been with SensorsTechForum since the project started. A professional with 10+ years of experience in creating engaging content. Focused on user privacy and malware development, she strongly believes in a world where cybersecurity plays a central role. If common sense makes no sense, she will be there to take notes. Those notes may later turn into articles! Follow Milena @Milenyim

More Posts

Follow Me:
Twitter

  • Windows
  • Mac OS X
  • Google Chrome
  • Mozilla Firefox
  • Microsoft Edge
  • Safari
  • Internet Explorer
  • Stop Push Pop-ups

How to Remove "System Mac OS is infected" from Windows.


Step 1: Scan for "System Mac OS is infected" with SpyHunter Anti-Malware Tool

1.1 Click on the "Download" button to proceed to SpyHunter's download page.


It is recommended to run a scan before purchasing the full version of the software to make sure that the current version of the malware can be detected by SpyHunter. Click on the corresponding links to check SpyHunter's EULA, Privacy Policy and Threat Assessment Criteria.


1.2 After you have installed SpyHunter, wait for it to update automatically.

SpyHunter Install and Scan for Viruses Step 1


1.3 After the update process has finished, click on the 'Malware/PC Scan' tab. A new window will appear. Click on 'Start Scan'.

SpyHunter Install and Scan for Viruses Step 2


1.4 After SpyHunter has finished scanning your PC for any files of the associated threat and found them, you can try to get them removed automatically and permanently by clicking on the 'Next' button.

SpyHunter Install and Scan for Viruses Step 3

If any threats have been removed, it is highly recommended to restart your PC.


Step 2: Boot Your PC In Safe Mode

2.1 Hold Windows key + R


2.2 The "Run" Window will appear. In it, type "msconfig" and click OK.
boot your pc in safe mode step 1


2.3 Go to the "Boot" tab. There select "Safe Boot" and then click "Apply" and "OK".

boot your pc in safe mode step 2

Tip: Make sure to reverse those changes by unticking Safe Boot after that, because your system will always boot in Safe Boot from now on.


2.4 When prompted, click on "Restart" to go into Safe Mode.
boot your pc in safe mode step 3


2.5 You can recognise Safe Mode by the words written on the corners of your screen.
boot your pc in safe mode step 4


Step 3: Uninstall "System Mac OS is infected" and related software from Windows

Uninstall Steps for Windows 11

1 Go to the search bar and type "Add or Remove Programs" and then click it.

Uninstall Malware from Windows 11 step 1

2 Locate the software that you want to uninstall click on the three dots and click "Uninstall" to begin the process.

Uninstall Malware from Windows 11 step 2

3 Follow the uninstall steps until the software has been effectively removed from your computer

Uninstall Malware from Windows 11 step 3

Uninstall Steps for Windows 10 and Older Versions

Here is a method in few easy steps that should be able to uninstall most programs. No matter if you are using Windows 10, 8, 7, Vista or XP, those steps will get the job done. Dragging the program or its folder to the recycle bin can be a very bad decision. If you do that, bits and pieces of the program are left behind, and that can lead to unstable work of your PC, errors with the file type associations and other unpleasant activities. The proper way to get a program off your computer is to Uninstall it. To do that:


1 Hold the Windows Logo Button and "R" on your keyboard. A Pop-up window will appear.

boot your pc in safe mode step 5


2 In the field type in "appwiz.cpl" and press ENTER.

boot your pc in safe mode step 6


3 This will open a window with all the programs installed on the PC. Select the program that you want to remove, and press "Uninstall"
boot your pc in safe mode step 7Follow the instructions above and you will successfully uninstall most programs.


Step 4: Clean Any registries, Created by "System Mac OS is infected" on Your PC.

The usually targeted registries of Windows machines are the following:

  • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
  • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce

You can access them by opening the Windows registry editor and deleting any values, created by "System Mac OS is infected" there. This can happen by following the steps underneath:

4.1 Open the Run Window again, type "regedit" and click OK.
clean malicious registries step 1


4.2 When you open it, you can freely navigate to the Run and RunOnce keys, whose locations are shown above.

clean malicious registries step 2


4.3 You can remove the value of the virus by right-clicking on it and removing it.

clean malicious registries step 3 Tip: To find a virus-created value, you can right-click on it and click "Modify" to see which file it is set to run. If this is the virus file location, remove the value.


Video Removal Guide for "System Mac OS is infected" (Windows).


Get rid of "System Mac OS is infected" from Mac OS X.


Step 1: Uninstall "System Mac OS is infected" and remove related files and objects

1.1 Hit the ⇧+⌘+U keys to open Utilities. Another way is to click on “Go” and then click “Utilities”, like the image below shows:
uninstall virus from mac step 1


1.2 Find Activity Monitor and double-click it:

uninstall virus from mac step 2


1.3 In the Activity Monitor look for any suspicious processes, belonging or related to "System Mac OS is infected":

uninstall virus from mac step 3

Tip: To quit a process completely, choose the “Force Quit” option.

uninstall virus from mac step 4


1.4 Click on the "Go" button again, but this time select Applications. Another way is with the ⇧+⌘+A buttons.


1.5 In the Applications menu, look for any suspicious app or an app with a name, similar or identical to "System Mac OS is infected". If you find it, right-click on the app and select “Move to Trash”.

uninstall virus from mac step 5


1.6 Select Accounts, after which click on the Login Items preference.

Your Mac will then show you a list of items that start automatically when you log in. Look for any suspicious apps identical or similar to "System Mac OS is infected". Check the app you want to stop from running automatically and then select on the Minus (“-“) icon to hide it.


1.7 Remove any left-over files that might be related to this threat manually by following the sub-steps below:

  • Go to Finder.
  • In the search bar type the name of the app that you want to remove.
  • Above the search bar change the two drop down menus to “System Files” and “Are Included” so that you can see all of the files associated with the application you want to remove. Bear in mind that some of the files may not be related to the app so be very careful which files you delete.
  • If all of the files are related, hold the ⌘+A buttons to select them and then drive them to “Trash”.

In case you cannot remove "System Mac OS is infected" via Step 1 above:

In case you cannot find the virus files and objects in your Applications or other places we have shown above, you can manually look for them in the Libraries of your Mac. But before doing this, please read the disclaimer below:

Disclaimer! If you are about to tamper with Library files on Mac, be sure to know the name of the virus file, because if you delete the wrong file, it may cause irreversible damage to your MacOS. Continue on your own responsibility!

1: Click on "Go" and Then "Go to Folder" as shown underneath:

uninstall virus from mac step 6

2: Type in "/Library/LauchAgents/" and click Ok:

uninstall virus from mac step 7

3: Delete all of the virus files that have similar or the same name as "System Mac OS is infected". If you believe there is no such file, do not delete anything.

uninstall virus from mac step 8

You can repeat the same procedure with the following other Library directories:

→ ~/Library/LaunchAgents
/Library/LaunchDaemons

Tip: ~ is there on purpose, because it leads to more LaunchAgents.


Step 2: Scan for and remove "System Mac OS is infected" files from your Mac

When you are facing problems on your Mac as a result of unwanted scripts and programs such as "System Mac OS is infected", the recommended way of eliminating the threat is by using an anti-malware program. SpyHunter for Mac offers advanced security features along with other modules that will improve your Mac’s security and protect it in the future.


Click the button below below to download SpyHunter for Mac and scan for "System Mac OS is infected":


Download

SpyHunter for Mac


Video Removal Guide for "System Mac OS is infected" (Mac)


Remove "System Mac OS is infected" from Google Chrome.


Step 1: Start Google Chrome and open the drop menu

Google Chrome removal guide step 1


Step 2: Move the cursor over "Tools" and then from the extended menu choose "Extensions"

Google Chrome removal guide step 2


Step 3: From the opened "Extensions" menu locate the unwanted extension and click on its "Remove" button.

Google Chrome removal guide step 3


Step 4: After the extension is removed, restart Google Chrome by closing it from the red "X" button at the top right corner and start it again.


Erase "System Mac OS is infected" from Mozilla Firefox.


Step 1: Start Mozilla Firefox. Open the menu window:

Mozilla Firefox removal guide step 1


Step 2: Select the "Add-ons" icon from the menu.

Mozilla Firefox removal guide step 2


Step 3: Select the unwanted extension and click "Remove"

Mozilla Firefox removal guide step 3


Step 4: After the extension is removed, restart Mozilla Firefox by closing it from the red "X" button at the top right corner and start it again.


Uninstall "System Mac OS is infected" from Microsoft Edge.


Step 1: Start Edge browser.


Step 2: Open the drop menu by clicking on the icon at the top right corner.

Edge Browser removal guide step 2


Step 3: From the drop menu select "Extensions".

Edge Browser removal guide step 3


Step 4: Choose the suspected malicious extension you want to remove and then click on the gear icon.

Edge Browser removal guide step 4


Step 5: Remove the malicious extension by scrolling down and then clicking on Uninstall.

Edge Browser removal guide step 5


Remove "System Mac OS is infected" from Safari


Step 1: Start the Safari app.


Step 2: After hovering your mouse cursor to the top of the screen, click on the Safari text to open its drop down menu.


Step 3: From the menu, click on "Preferences".

Safari browser removal guide step 3


Step 4: After that, select the 'Extensions' Tab.

Safari browser removal guide step 4


Step 5: Click once on the extension you want to remove.


Step 6: Click 'Uninstall'.

Safari browser removal guide step 5

A pop-up window will appear asking for confirmation to uninstall the extension. Select 'Uninstall' again, and the "System Mac OS is infected" will be removed.


How to Reset Safari
IMPORTANT: Before resetting Safari make sure you back up all your saved passwords within the browser in case you forget them.

Start Safari and then click on the gear leaver icon.

Click the Reset Safari button and you will reset the browser.

Eliminate "System Mac OS is infected" from Internet Explorer.


Step 1: Start Internet Explorer.


Step 2: Click on the gear icon labeled 'Tools' to open the drop menu and select 'Manage Add-ons'

Internet Explorer browser removal guide step 2


Step 3: In the 'Manage Add-ons' window.
Internet Explorer browser removal guide step 3


Step 4: Select the extension you want to remove and then click 'Disable'. A pop-up window will appear to inform you that you are about to disable the selected extension, and some more add-ons might be disabled as well. Leave all the boxes checked, and click 'Disable'.

Internet Explorer browser removal guide step 4


Step 5: After the unwanted extension has been removed, restart Internet Explorer by closing it from the red 'X' button located at the top right corner and start it again.

Remove Push Notifications from Your Browsers


Turn Off Push Notifications from Google Chrome

To disable any Push Notices from Google Chrome browser, please follow the steps below:

Step 1: Go to Settings in Chrome.

Google Chrome - Disable Push Notifications Step 1

Step 2: In Settings, select “Advanced Settings”:

Google Chrome - Disable Push Notifications Step 2

Step 3: Click “Content Settings”:

Google Chrome - Disable Push Notifications Step 3

Step 4: Open “Notifications”:

Google Chrome - Disable Push Notifications Step 4

Step 5: Click the three dots and choose Block, Edit or Remove options:

Google Chrome - Disable Push Notifications Step 5

Remove Push Notifications on Firefox

Step 1: Go to Firefox Options.

Mozilla Firefox - Disable Push Notifications Step 1

Step 2: Go to “Settings”, type “notifications” in the search bar and click "Settings":

Mozilla Firefox - Disable Push Notifications Step 2

Step 3: Click “Remove” on any site you wish notifications gone and click “Save Changes”

Mozilla Firefox - Disable Push Notifications Step 3

Stop Push Notifications on Opera

Step 1: In Opera, press ALT+P to go to Settings.

Opera - Disable Push Notifications Step 1

Step 2: In Setting search, type “Content” to go to Content Settings.

Opera - Disable Push Notifications Step 2

Step 3: Open Notifications:

Opera - Disable Push Notifications Step 3

Step 4: Do the same as you did with Google Chrome (explained below):

Opera - Disable Push Notifications Step 4

Eliminate Push Notifications on Safari

Step 1: Open Safari Preferences.

Safari Browser - Disable Push Notifications Step 1

Step 2: Choose the domain from where you like push pop-ups gone and change to "Deny" from "Allow".

"System Mac OS is infected"-FAQ

What Is "System Mac OS is infected"?

The "System Mac OS is infected" threat is adware or browser redirect virus.

It may slow your computer down significantly and display advertisements. The main idea is for your information to likely get stolen or more ads to appear on your device.

The creators of such unwanted apps work with pay-per-click schemes to get your computer to visit risky or different types of websites that may generate them funds. This is why they do not even care what types of websites show up on the ads. This makes their unwanted software indirectly risky for your OS.

What Are the Symptoms of "System Mac OS is infected"?

There are several symptoms to look for when this particular threat and also unwanted apps in general are active:

Symptom #1: Your computer may become slow and have poor performance in general.

Symptom #2: You have toolbars, add-ons or extensions on your web browsers that you don't remember adding.

Symptom #3: You see all types of ads, like ad-supported search results, pop-ups and redirects to randomly appear.

Symptom #4: You see installed apps on your Mac running automatically and you do not remember installing them.

Symptom #5: You see suspicious processes running in your Task Manager.

If you see one or more of those symptoms, then security experts recommend that you check your computer for viruses.

What Types of Unwanted Programs Are There?

According to most malware researchers and cyber-security experts, the threats that can currently affect your device can be rogue antivirus software, adware, browser hijackers, clickers, fake optimizers and any forms of PUPs.

What to Do If I Have a "virus" like "System Mac OS is infected"?

With few simple actions. First and foremost, it is imperative that you follow these steps:

Step 1: Find a safe computer and connect it to another network, not the one that your Mac was infected in.

Step 2: Change all of your passwords, starting from your email passwords.

Step 3: Enable two-factor authentication for protection of your important accounts.

Step 4: Call your bank to change your credit card details (secret code, etc.) if you have saved your credit card for online shopping or have done online activities with your card.

Step 5: Make sure to call your ISP (Internet provider or carrier) and ask them to change your IP address.

Step 6: Change your Wi-Fi password.

Step 7: (Optional): Make sure to scan all of the devices connected to your network for viruses and repeat these steps for them if they are affected.

Step 8: Install anti-malware software with real-time protection on every device you have.

Step 9: Try not to download software from sites you know nothing about and stay away from low-reputation websites in general.

If you follow these recommendations, your network and all devices will become significantly more secure against any threats or information invasive software and be virus free and protected in the future too.

How Does "System Mac OS is infected" Work?

Once installed, "System Mac OS is infected" can collect data using trackers. This data is about your web browsing habits, such as the websites you visit and the search terms you use. It is then used to target you with ads or to sell your information to third parties.

"System Mac OS is infected" can also download other malicious software onto your computer, such as viruses and spyware, which can be used to steal your personal information and show risky ads, that may redirect to virus sites or scams.

Is "System Mac OS is infected" Malware?

The truth is that PUPs (adware, browser hijackers) are not viruses, but may be just as dangerous since they may show you and redirect you to malware websites and scam pages.

Many security experts classify potentially unwanted programs as malware. This is because of the unwanted effects that PUPs can cause, such as displaying intrusive ads and collecting user data without the user’s knowledge or consent.

About the "System Mac OS is infected" Research

The content we publish on SensorsTechForum.com, this "System Mac OS is infected" how-to removal guide included, is the outcome of extensive research, hard work and our team’s devotion to help you remove the specific, adware-related problem, and restore your browser and computer system.

How did we conduct the research on "System Mac OS is infected"?

Please note that our research is based on independent investigation. We are in contact with independent security researchers, thanks to which we receive daily updates on the latest malware, adware, and browser hijacker definitions.
Furthermore, the research behind the "System Mac OS is infected" threat is backed with VirusTotal.
To better understand this online threat, please refer to the following articles which provide knowledgeable details.

Leave a Comment

Your email address will not be published. Required fields are marked *

This website uses cookies to improve user experience. By using our website you consent to all cookies in accordance with our Privacy Policy.
I Agree