Why Does “Your OS High Sierra Is Infected With (3) Viruses!” Pop-up Keep Coming up?
Recently, more and more Windows users and Mac users encountered annoying “Your OS High Sierra Is Infected With (3) Viruses!” Pop-up while trying to open websites. These popups attempt to convince the users to call a toll free hotline get assistance to solve virus or other problems detected on their computers. Our research team investigated it and found that “Your OS High Sierra Is Infected With (3) Viruses!” Pop-up are all phishing webpages made by deceptive tech support companies, which aim to swindle the victims into purchasing expensive service on virus removal or computer repair for nonexistent problems. Your web browsers such as Microsoft Edge, Chrome, Firefox, IE and Safari will be hijacked by “Your OS High Sierra Is Infected With (3) Viruses!” Pop-up if your computer has been invaded by PUP / Adware. These infections inject codes on your browser to redirect you to spam web pages and block your access to any other website. You will see misleading messages that report threats or system problems on your browser.
“Your OS High Sierra Is Infected With (3) Viruses!” Pop-up virus will mess up your system completely and put your identity and privacy at risk if you do not remove it. “Your OS High Sierra Is Infected With (3) Viruses!” Pop-up will be activated every time you launch system, it will communicate with remote server to drop more threats to give your system more corruptions. It first makes of Trojan virus to weaken your system security, then it can open backdoor to help more infections invade your system. After that, spyware connected with “Your OS High Sierra Is Infected With (3) Viruses!” Pop-up can monitor your operations to steal your private information such as phone number, email, name, and credit card details. In case it gets such sensitive info, it sends to cyber criminal and will use them hack your accounts and get more money from you. To prevent such severe issues, you need to get rid of “Your OS High Sierra Is Infected With (3) Viruses!” Pop-up malware as early as possible. If you cannot complete the removal on your own, the removal steps below can assist you to solve it:
(Note – If you are a Windows OS user, please use this guide: How to Remove Virus & Malware From Windows OS? )
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>> Step 1 – Uninstall suspicious apps which may be associated with “Your OS High Sierra Is Infected With (3) Viruses!” Pop-up from Mac OSX
In Finder window, clicking “Applications” in the sidebar and right-clicking on suspicious apps, and selecting “Move to Trash.”
Note – Some apps may need you to type in username and password to confirm the removal:
If you cannot find or remove apps which may be associated with “Your OS High Sierra Is Infected With (3) Viruses!” Pop-up, please read next step.
>> Step 2 – Remove suspicious extensions which may be associated with “Your OS High Sierra Is Infected With (3) Viruses!” Pop-up from Safari and Chrome.
Start Safari: Select Safari menu and click Preferences:
Go to Extensions >> Identify the unsafe or suspicious extensions and click Uninstall:
On Google Chrome
Start Google Chrome and click the “Customize and control Google Chrome” icon at the top right corner >> Select More Tools and click Extensions:
Identify suspicious extensions and click click trash icon to remove it:
If you cannot find or remove apps which may be associated with “Your OS High Sierra Is Infected With (3) Viruses!” Pop-up, please check the Note below.
Note – If the above steps have not solved your issues:
In case that “Your OS High Sierra Is Infected With (3) Viruses!” Pop-up, or an unwanted extension / search engine / app cannot be removed manually, it’s possible that related malicious files or other threats are causing the issues. Therefore, we suggest that you should have a in-depth check on your Mac so that you will know its security status. To do so, we recommend downloading MacBooster 7 to scan entire Mac and see if it will detect threats:
MacBooster 7 is a professional Mac OSX Optimization and Protections Tool for users. It provide users with powerful system utility to maintain and protect Mac. It can help to accelerate slow systems, remove virus & malware, free up over occupied hard disks, uninstall unnecessary apps, and fix other system issues with just one click.
Use MacBooster 7 to scan entire system and see if it will detect threats or junks.
1. Click Download link of MacBooster 7 below:
(The below link will open a new page from where you can download MacBooster 7 . Please come back to this page after you download it)Download Combo Cleaner to Diagnose Your Mac
MacBooster 7 scanner is free. Once it detects threats or junks, you’ll need to purchase its full version to remove the items. And please note that, I am not the maker of MacBooster, but one of its affiliates promoting MacBooster.
NOTE – If you cannot open the download page of MacBooster 7, it might be blocked by the other anti-malware running on your Mac. Once that happens, PLEASE Turn Off that anti-malware and come back here to click the above download link again.
2. Once MacBooster 7 is installed, try the Virus & Malware Scan feature and see if it will detect threats on your Mac.
3. If you want to uninstall some unwanted or suspicious apps. Please try the Uninstaller feature.
4. We recommend running a full scan to Re-check your Mac and determine if the System Status is good.