Removal guide Adware

How to Remove VirtualShield from Your Mac [Virus Removal Guide]

By Stelian2 min read

VirtualShield is a malicious program that infiltrates macOS systems, injecting unwanted advertisements, redirecting web searches, and potentially collecting user data. This adware is associated with the Adware.CrossRider family, known for its aggressive advertising tactics and persistence.

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If you’ve noticed strange ads, browser redirects, or sluggish performance on your Mac, you might be infected with VirtualShield. In this article, we’ll explain what VirtualShield is, how it gets installed, and most importantly, how to remove it.

Mac Malicious Program

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What is VirtualShield?

 

VirtualShield is an adware program that targets Mac computers, injecting intrusive advertisements and modifying browser settings. Once installed, it can:

  • Display Unwanted Ads: Pop-ups, banners, and in-text advertisements appear on websites.
  • Redirect Search Queries: Your search results may be altered to promote affiliate or malicious sites.
  • Alter Browser Settings: VirtualShield can change your homepage, search engine, and new tab settings.
  • Track Your Browsing Activity: It may collect data such as visited websites, search history, and even IP addresses for advertising purposes.
  • Slow Down System Performance: Background processes related to the adware may consume resources, causing your Mac to lag.

VirtualShield does not provide any real benefits to users. Instead, it exists primarily to generate revenue for its creators by forcing users to interact with ads.

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How Was VirtualShield Installed on My Mac?

Like most adware, VirtualShield does not install itself directly. Instead, it sneaks onto your Mac through deceptive methods, including:

1. Software Bundling

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  • Many free applications downloaded from untrusted sources come bundled with adware.
  • Users often accidentally install VirtualShield by skipping through installation steps without unchecking additional software.

2. Fake Software Updates

  • You might encounter a pop-up claiming your Flash Player, browser, or another app needs updating.
  • Clicking on these fake update prompts can install VirtualShield and other unwanted software.

3. Malicious Websites & Pop-Ups

  • Visiting certain websites may trigger misleading pop-ups that trick users into downloading adware.
  • Some pop-ups mimic system alerts, urging users to install a “recommended” program.

4. Browser Extensions & Plugins

  • Some malicious browser extensions disguise themselves as helpful tools but instead inject advertisements and track browsing activity.

5. Pirated Software & Cracked Applications

  • Downloading software from torrent sites or unofficial sources significantly increases the risk of adware infections.

If you recently installed freeware, a browser extension, or clicked on a suspicious update, VirtualShield may have infiltrated your system without your knowledge.

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How to Remove VirtualShield from Your Mac

This malware removal guide may appear overwhelming due to the number of steps and numerous programs that are being used. We have only written it this way to provide clear, detailed, and easy-to-understand instructions that anyone can use to remove malware for free.
Please perform all the steps in the correct order. If you have any questions or doubts at any point, stop and ask for our assistance.
To remove VirtualShield from your Mac, follow these steps:

STEP 1: Remove malicious profiles

Profiles are used by IT admins in businesses to control the behavior of their Macs. These profiles can configure a Mac to do many different things, some of which are not otherwise possible.
When it comes to home users, adware and browser hijackers are using the configuration profile to prevent users from removing malicious programs from the computer. This also prevents the user from changing that behavior in the browser’s settings.

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In this first step, we will check your computer to see if any configuration profiles are installed. To do this, follow the below steps:

  1. Open “System Settings”

    From the Apple menu () in the top-left corner of the screen, select System Settings. (On macOS Monterey and earlier, this is called System Preferences.)

  2. Look for “Profiles”

    In the System Settings window, search for Profiles — on newer macOS versions you’ll find it under Privacy & Security, or you can type “Profiles” in the search box.
    Search for Profiles in System Preferences

    No Profiles section? Good news — that means no profiles are installed on your Mac, which is completely normal. Skip ahead to the next step of this guide.
  3. Remove the malicious profiles

    Malware uses configuration profiles to lock your browser settings — forcing a fake search engine or homepage on you and preventing you from changing it back. If you see a profile you don’t recognize (and your Mac isn’t managed by your workplace or school), select it, press the − (minus) button, and click Remove to confirm.
    Remove malicious profiles from your Mac

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STEP 2: Delete malicious apps

In this second step, we will try to identify and remove any malicious apps and files that might be installed on your computer. Sometimes redirects or adware programs can have usable Uninstall entries that can be used to remove these programs.

  1. Quit the malicious programs

    Check the Apple menu bar in the top-right corner of your screen. If you see an icon you don’t recognize, click it and select Quit. This stops the malware from running so it can’t interfere while we remove it.

  2. Open “Finder”

    Click the Finder icon in your dock.
    Open Finder

  3. Click on “Applications”

    In the Finder sidebar, click “Applications“.
    Click on Applications

  4. Find and remove the malicious app

    Scroll through the list of installed apps and look for anything suspicious — an app you don’t remember installing, or one with a strange or generic name. When you find it, right-click it and select “Move to Trash“.

    Some known malicious programs to look for: SearchMine, TakeFresh, TopResults, FeedBack, ApplicationEvents, GeneralOpen, PowerLog, MessengerNow, ImagePrime, GeneralNetSearch, Reading Cursors, GlobalTechSearch, PDFOnline-express, See Scenic Elf, MatchKnowledge, Easy Speedtest, and WebDiscover. The names change constantly, though — so treat any app you can’t account for as suspect.

    Find malicious programs and Remove It

  5. Empty the Trash

    Right-click the Trash icon in your dock and select “Empty Trash“. This permanently deletes the malicious app you just removed — until you do this, the malware is still on your Mac.
    Empty Trash

  6. Find and remove the malicious files

    Malware on Mac uses launch agents and launch daemons — small files that automatically restart the malware every time you boot your Mac. We’ll check the four folders where they hide:

    1. Click the desktop to make sure you’re in Finder, then open the “Go” menu and click “Go to Folder“.Go to Folder mac
    2. Copy and paste each of the paths below into the window, one at a time, and click Go after each:
      • /Library/LaunchAgents
      • ~/Library/LaunchAgents
      • /Library/Application Support
      • /Library/LaunchDaemons
      Type the commands in the Go to Folder window

    3. In each folder, look for suspicious .plist files — typically named after the malware or with odd, random-looking names. Some known examples: “com.adobe.fpsaud.plist”, “installmac.AppRemoval.plist”, “myppes.download.plist”, “mykotlerino.ltvbit.plist”, and “com.myppes.net-preferences.plist”. When you find a malicious file, move it to the Trash — then empty the Trash again when you’re done.
      Be careful: these folders also contain files belonging to legitimate apps — especially /Library/Application Support, where programs like Adobe, Google, and Microsoft store their data. Only delete files you’re confident are malicious. If you’re unsure about a file, search its exact name online first — or skip it; the Malwarebytes scan in the next step will catch what you miss.
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STEP 3: Reset browsers back to default settings

In this third step, we will remove spam push notifications and malicious extensions, and change to default any settings that might have been changed by malware.
For each browser that you have installed on your computer, please click on the tab below and follow the displayed steps to reset that browser.

Remove malicious extensions and settings from Safari

To remove malware from Safari we will check if there are any malicious extensions installed on your browser and what settings have been changed by this malicious program.

  1. Go to Safari’s “Preferences”.

    On the menu bar, click the “Safari” menu and select “Preferences”.
    On the Menu bar Click on Safari then Preference

  2. Check Homepage.

    This will open a new window with your Safari preferences, opened to the “General” tab. Some browser hijackers may change your default homepage, so in the Homepage field make sure it’s a web page you want to use as your start-up page.

    Change Homepage in Safari

  3. Click “Extensions”

    Next, click on the “Extensions” tab.
    Click on Extensions MacOS

  4. Find and uninstall malicious extensions.

    The “Extensions” screen will be displayed with a list of all the extensions installed on Safari. Look out for any suspicious browser extension that could be behind all the drama – anything you don’t remember downloading or that doesn’t sound like a genuine extension. By default, there are no extensions installed on Safari so it’s safe to remove an extension
    Click on Uninstall to remove malicious extension

  5. Remove spam notifications ads

    Click Preferences, click Websites, then click Notifications. Deselect “Allow websites to ask for permission to send push notifications”.

    Deselect Allow websites to ask for permission to send push notifications

  6. Remove all data stored by websites on your computer.

    In the Safari menu, choose “Preferences…”, select “Privacy” at the top of the new window that appears, and then click the “Manage Website Data” button.
    Click Manage Website Data

    In the next dialog box, click “Remove All“. It will ask you if you are sure you want to remove all data stored by websites on your computer. Select “Remove Now” to clear data that could be used to track your browsing.

    Click Remove All Website Data

  7. Empty Safari Caches.

    From your Safari menu bar, click Safari and select Preferences, then select the Advanced tab. Enable the checkbox to “Show Develop menu in menu bar“.
    Show Dev Bar

    From the menu bar select Develop, then click on Empty Caches as seen in the image below.
    empty cache

Remove malware from Chrome for Mac

To remove malware from Chrome for Mac we will reset the browser settings to their default. Doing these steps will erase all configuration information from Chrome such as your home page, tab settings, saved form information, browsing history, and cookies. This process will also disable any installed extensions. All of your bookmarks, though, will be preserved.

  1. Click on the three dots at the top right and go to Settings.

    Click on Chrome’s main menu button, represented by three dots at the top right corner. Now click on the menu option labeled Settings as shown by the arrow in the picture below, which will open the basic settings screen. Click on the Chrome menu button then on the Settings button
  2. In the left sidebar, click on the “Reset and Cleanup” option.

    In the left sidebar, click on “Reset and clean up“. Click on Reset and Cleanup
  3. Click “Reset settings to their original defaults”.

    Now click on the “Reset settings to their original defaults”. link as shown in the image below.  Reset Chrome
  4. Click “Reset Settings” button.

    A confirmation dialog should now be displayed, detailing the components that will be restored to their default state should you continue with the reset process. To complete the restoration process, click on the “Reset Settings” button. Confirm Reset Chrome browser
  5. (Optional) Reset Chrome Data Sync.

    In case a malicious extension reinstalls itself even after performing a browser reset, you have an additional option to reset the data sync for your browser. To do this, navigate to chrome.google.com/sync and click on the Clear Data button. Chrome Sync Reset
Remove malware from Firefox for Mac

To remove malware from Firefox for Mac we will reset the browser settings to its default. The reset feature fixes many issues by restoring Firefox to its factory default state while saving your essential information like bookmarks, passwords, web form auto-fill information, browsing history, and open tabs.

  1. Go to the “Help” menu.

    Click on Firefox’s main menu button, represented by three horizontal lines. When the drop-down menu appears, select the option labeled “Help“.
    Image - Click on the Firefox Menu button then select Help

  2. Click “Troubleshooting Information”.

    Next click on the “Troubleshooting Information” option as indicated by the arrow in the image below. This will bring you to a Troubleshooting page.

    Image - Troubleshooting Information option in Firefox Mac

  3. Click on “Refresh Firefox”

    Click the “Refresh Firefox” button in the upper-right corner of the “Troubleshooting Information” page.
    Image - Click on the Refresh Firefox button Mac

  4. Confirm.

    To continue, click on the “Refresh Firefox” button in the new confirmation window that opens.
    Image - Click again on Refresh Firefox button

  5. Click on “Finish”.

    Firefox will close itself and will revert to its default settings. When it’s done, a window will list the information that was imported. Click on the “Finish“.

Your old Firefox profile will be placed on your desktop in a folder named “Old Firefox Data“. If the reset didn’t fix your problem you can restore some of the information not saved by copying files to the new profile that was created. If you don’t need this folder any longer, you should delete it as it contains sensitive information.

STEP 4: Run a scan with Malwarebytes for Mac to remove malware

In this final step, we will scan the computer with Malwarebytes for Mac to find and remove any malicious programs that might be installed on your Mac.

Malwarebytes for Mac is a free on-demand scanner that removes the malware other security software tends to miss — adware, browser hijackers, and unwanted programs included. Cleaning an infected Mac with Malwarebytes has always been completely free, and it’s our go-to recommendation. Follow the steps below to scan and clean your Mac in just a few minutes.

  1. Download Malwarebytes for Mac

    Click the button below to download the latest version of Malwarebytes for Mac.

    Malwarebytes Free for MacScans and removes malware at no cost
    Download MalwarebytesOfficial installer for macOS. Your download starts right away.Want real-time protection? See Malwarebytes Premium
  2. Open the Malwarebytes setup file

    When the download finishes, open your Downloads folder and double-click the setup file to begin the installation.

    Double-click on setup file to install Malwarebytes

  3. Follow the On-Screen Prompts to Install Malwarebytes

    The Malwarebytes for Mac Installer will guide you through a few quick screens. Click “Continue” and keep following the prompts until the installation completes.

    Click Continue to install Malwarebytes for Mac

    Click again on Continue to install Malwarebytes for Mac

    Click Install to install Malwarebytes on Mac

    When the installation is complete, Malwarebytes opens to the Welcome to Malwarebytes screen. Click “Get started“.

  4. Select “Personal Computer” or “Work Computer”

    Malwarebytes will ask what type of computer you’re installing it on. Click either Personal Computer or Work Computer, whichever applies.
    Select Personal Computer or Work Computer mac

  5. Start the Scan

    Click the “Scan” button. Malwarebytes will automatically update its detection database and begin checking your Mac for malware.
    Click on Scan button to start a system scan Mac

  6. Wait for the Scan to Finish

    Malwarebytes will scan your Mac for adware, browser hijackers, and other malicious programs. This can take a few minutes, so feel free to do something else — just check back occasionally to see the progress.
    Wait for Malwarebytes for Mac to scan for malware

  7. Quarantine the Detected Threats

    When the scan is done, you’ll see a list of everything Malwarebytes found. Click the “Quarantine” button to remove all the threats at once.
    Review the malicious programs and click on Quarantine to remove malware

  8. Restart Your Mac

    Malwarebytes will now remove all the malicious files it found. Some threats can only be fully removed after a reboot — if Malwarebytes asks you to restart, allow it. Once you’re logged back in, your Mac is clean.
    Malwarebytes For Mac requesting to restart computer

Final Thoughts

VirtualShield is an annoying and potentially harmful adware that disrupts your browsing experience and compromises your privacy. If you’ve been experiencing intrusive ads and browser redirects, following the removal steps above will help you eliminate the adware and restore your Mac’s performance.

Keep your Mac protectedStop the next infection before it starts
If your Mac got infected, its built-in protection may not be enough on its own. Malwarebytes Premium for Mac adds real-time protection that blocks malware and adware before they can infect your Mac.See Malwarebytes Premium

If you are still experiencing problems while trying to remove a malicious program from your computer, please ask for help in our Mac Malware Removal Help & Support forum.

Finish the cleanup. Keep protection on.

Follow the removal steps above, then consider ongoing protection against malicious software and unwanted advertising.

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Reduce unwanted ads and redirects.

AdGuard filters ads and trackers while you browse. It can help reduce exposure to advertising that sends you to unwanted pages.

  • Blocks intrusive ads and pop-ups
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Explore AdGuardExplore features on the official website

Features vary by device and plan. These tools add protection; they do not guarantee that a website or offer is trustworthy.

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Written by

Stelian

Stelian leverages over a decade of cybersecurity expertise to lead malware analysis and removal, uncover scams, and educate people. His experience provides insightful analysis and valuable perspective.

60,993 articlesWriting since 2011
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