How to tell if your Mac has a virus. If you have a feeling that your Mac is behaving oddly or is just “off,” you may have a virus. Strange activity, applications seeming to “lag” when opening, and more can all be warning signs you may have malicious software on your Mac. Ads and pop-ups are popping up often.

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.

Checking your Mac for viruses. OS X does a pretty good job of stopping viruses and malware from attacking your computer. But there are steps you can take to further protect yourself. Stopping a virus altogether involves searching your Mac pretty thoroughly to ensure all traces of the virus are gone. You should use malware-scanning software to help identify and eliminate viruses. Our Mac OS antivirus software offers the best Mac virus removal and protects your system. Scan your system at the push of a button and repair folders with just one click. Our Apple virus scan software is free. Download it now for your Mac with macOS 10.13 (Sierra) and later versions! For additional features get our Free Security Suite.

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.

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1. Go into the Downloads folder, or your preferred download location.
2. Drag the installer to the Trash.
3. Empty the Trash.

How to remove this malware

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

1. Move or close the Scan Window.
2. Go to the Utilities folder in the Applications folder and launch Activity Monitor.
3. Choose All Processes from the pop up menu in the upper right corner of the window.
4. 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.
5. Click the Quit Process button in the upper left corner of the window and select Quit.
6. Quit Activity Monitor application.
7. Open the Applications folder.
8. Locate the app ex. MacDefender, MacSecurity, MacProtector or other name.
9. 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.

Nov. 15, 2018

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The big question out there when it comes to Apple products is, “Can a Mac get a virus?” The short answer? Absolutely.

Apple computers can get viruses and malware just like PCs can. While iMacs, MacBooks, Mac Minis, and iPhones may not be as frequent targets as Windows computers, all have their fair share of threats.

Adware, spyware, ransomware, and hardware and software vulnerabilities are some of the problems now affecting Macs, and not just PCs. Read on to learn more about some of the most common malware and viruses that can affect Apple devices, what the signs are, and what you can do to help protect your devices.

Four types of Apple viruses — and a vulnerability

Apple viruses can range from annoying to outright damaging.

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1. Adware on Macs

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Adware is a potentially unwanted program that can bombard users with advertising pop-ups. Adware can be both malicious or benign. Some adware can work in conjunction with spyware, a type of software that can spy on and record everything you do online.

Pop-up ads can lead users to malicious websites that could deliver media='(min-width: 992px)'>

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