Update: Microsoft Defender ATP for Mac is generally available as of June 28, 2019. Today, we’re announcing our advances in cross-platform next-generation protection and endpoint detection and response coverage with a new Microsoft solution for Mac. If you are experiencing problems while trying to remove microsoft warning alert virus from your computer, please ask for assistance in our malware support forum. Post a comment: If you have additional information on microsoft warning alert virus or it's removal please share your knowledge in the comments section below.
An increasing number of users are experiencing issues with Safari. Specifically, a pop-up alert window appears saying that their Mac may have been hijacked or that there is a “suspicious activity” or that their Mac is infected with a virus.
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Mar 21, 2019 But Macs don't get viruses! — Microsoft ships antivirus for macOS as Windows Defender becomes Microsoft Defender Microsoft is expanding the reach of its device management services. Oct 25, 2018 Virus Alert from Apple pop-up is a social engineering attack that tries to con you and other unsuspecting users into calling a fake Apple Support. Security professionals have determined that users are rerouted to the “Virus Alert from Apple” scam by adware or from malicious advertisements. Adware can cause problems for your machine.
You may see a popup message something like this:
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Critical Security Warning! Your Mac is infected with a malicious virus attack. Please contact tech support at +1-888-307-2735 and provide error code WBACK7917 to scan and resolve any potential threats to your personal and financial information, which was being tracked by suspicious connection. Consequently we are performing additional security checks to verify the source of the attack and have halted all your system resources in order to prevent any additional damage to your system and information.”
This is a scam message. Safari (Explorer or Chrome) will look unresponsive and locked and you will not be able to close the popup.
This is just a JavaScript pop-up. Just keep calm. Do not worry, this is not a virus. And further your Mac has not been infected with any malware. Tis message is designed to scare and deceive Mac users into thinking there is something wrong.
Do not call the number on the message. And do not click the “OK” button. If you call the number, whoever answer the phone will ask you to access your Mac remotely. Or they may ask you to pay between $100 and $500. Do not do this. They are trying to steal your money.
Here is how to fix security alert messages:
Follow the steps below:
- Force quit Safari by pressing Command-Option-Esc.
- Force Quit window will appear
- Select Safari
- Then click Force Quit
- Now you need to restart Safari. But if you start Safari normally, the popup may appear. Now while pressing the Shift key, launch Safari. This is important step. This will restart the browser without reloading previously open sessions.
If you are still experiencing this problem:
- Force quit Safari
- Relaunch Safari while holding down the Shift key
- Turn Wi-Fi off. Simply click the wireless icon in the upper left corner then choose Turn Wi-Fi Off
- Visit a web site e.g. apple.com
- Now connect to the Internet by turning Wi-Fi on.
Note: You may also want to clear your browser history. Choose History > Clear History.
See also: Mac Stuck On “Setting up your Mac”, Fix
A phishing scam has targeted Mac users by redirecting them from legitimate websites to fake websites which tell them that their computer is infected with a virus. The user is then offered Mac Defender 'anti-virus' software to solve the issue.
This “anti-virus” software is malware (i.e. malicious software). Its ultimate goal is to get the user's credit card information which may be used for fraudulent purposes.
The most common names for this malware are MacDefender, MacProtector and MacSecurity.
Apple released a free software update (Security Update 2011-003) that will automatically find and remove Mac Defender malware and its known variants.
The Resolution section below also provides step-by-step instructions on how to avoid or manually remove this malware.
Resolution
How to avoid installing this malware
If any notifications about viruses or security software appear, quit Safari or any other browser that you are using. If a normal attempt at quitting the browser doesn’t work, then Force Quit the browser.
In some cases, your browser may automatically download and launch the installer for this malicious software. If this happens, cancel the installation process; do not enter your administrator password. Delete the installer immediately using the steps below.
- Go into the Downloads folder, or your preferred download location.
- Drag the installer to the Trash.
- Empty the Trash.
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How to remove this malware
Microsoft Virus Alert On Mac Pro
If the malware has been installed, we recommend the following actions:
- Do not provide your credit card information under any circumstances.
- Use the Removal Steps below.
Removal steps
- Move or close the Scan Window.
- Go to the Utilities folder in the Applications folder and launch Activity Monitor.
- Choose All Processes from the pop up menu in the upper right corner of the window.
- Under the Process Name column, look for the name of the app and click to select it; common app names include: MacDefender, MacSecurity or MacProtector.
- Click the Quit Process button in the upper left corner of the window and select Quit.
- Quit Activity Monitor application.
- Open the Applications folder.
- Locate the app ex. MacDefender, MacSecurity, MacProtector or other name.
- Drag to Trash, and empty Trash.
Malware also installs a login item in your account in System Preferences. Removal of the login item is not necessary, but you can remove it by following the steps below.
- Open System Preferences, select Accounts, then Login Items
- Select the name of the app you removed in the steps above ex. MacDefender, MacSecurity, MacProtector
- Click the minus button
Use the steps in the “How to avoid installing this malware” section above to remove the installer from the download location.
Note: Apple provides security updates for the Mac exclusively through Software Update and the Apple Support Downloads site. User should exercise caution any time they are asked to enter sensitive personal information online.
