Viruses For Mac Os



Download Malwarebytes for Mac (the free version) and you get a 14-day trial of the premium version with automatic (real-time) virus and malware protection. After 14 days, your trial reverts to a limited disinfection scanner. Buy the premium version now to prevent infection in the first place. Viruses, on the other hand, are bits of codes that penetrate your system in one way or another and designed to mess with your system. The first step towards Mac virus removal is to of course know if your device has one. Here are some symptoms: Your Mac becomes slow and sluggish all of a sudden. Aware of the problem, Apple eventually replaced the classic Mac operating system with the new Mac OS X, which came with built-in malware security measures. For instance: Quarantine, introduced in 2007, alerts users if they try to open applications downloaded from the Internet. It acts as a reminder, in effect prompting users to think twice.

  1. How To Scan For Viruses On Mac
  2. Mac Os Virus
  3. Malware For Mac Os

An Apple Macintosh computer can get a virus or malware infection, so the short answer to the question is Yes. However, it's less likely for an Apple Macintosh computer to be infected compared to a MicrosoftWindows computer.

Note

The term 'virus' and 'malware' are often used interchangeably. For the sake of simplicity, 'virus' will be used on this page and refers to either a virus or malware.

List

Several examples of viruses that have infected Apple Macintosh computers include the following.

  • Flashback malware - Infected over 600,000 Apple computers in April 2012; designed to steal user's personal information, including account login credentials.
  • OSX/KitM.A virus - Infected a small number of Apple computers in May 2013; designed to take screenshots of a user's desktop and upload to one of several websites.
  • OSX.PROTON - Infected thousands of Apple computers in 2017; designed to steal user's account credentials by accessing the macOS Keychain app.
  • OSX/MaMi - Infected several thousand or more Apple computers in January 2018; designed to allow a person to view a computer's Internet traffic, also called 'snooping.'

In 2015, the senior e-threat analyst at Bitdefender, Bogdan Botezatu, was quoted as saying 'Mac OS X software has more high-risk vulnerabilities than all versions of Windows put together.' Despite that statement and apparent fact, Mac computers are still infected by viruses much less often than Windows computers. Below are some of the reasons why Apple Macintosh computers do not have as many viruses as Windows computers:

  1. Beginning with macOS X in March 2001, Macintosh operating systems are built on 'Darwin,' a fork of the BSDkernel.
  2. Most of the computer virus writers are more familiar with the IBM platform and Microsoft Windows, which means it's easier for them create a virus for that platform.
  3. Many of the tools, scripts, and code used to create viruses or other malware are designed for Microsoft Windows.
  4. Many of the targets of viruses are governments and businesses, with an aim to either steal information, money, or create havoc. The majority of computers used by government agencies and businesses have the Windows operating system, resulting in most viruses being targeted towards Windows computers, instead of Macs.

How To Scan For Viruses On Mac

Note

If you are running a virtual PC on your Apple Macintosh or Windows in Bootcamp, because it is emulating Microsoft Windows, it can become infected with Windows viruses.

Mac Os Virus

Software and plug-in threats

Although the Apple OS is more secure than many versions of Windows, additional software, plug-ins, and add-ons that connect to the Internet can introduce security vulnerabilities. The most common ways to attack a Mac computer is through a third-party browser and browser plugins, like Adobe Reader, Flash, and Java. Today, most Mac users have these plugins installed and enabled on the computer, and, in doing so, compromise the overall security of the system.

Additional security threats

Although a Mac is less susceptible to viruses, Mac users can still be the victims of trojan horses, phishing scams, and online fraud. If you are a Mac computer user, we still recommend keeping informed about how to keep safe while online. There is no such thing as a 100% safe computer. Mac, Windows, and even Linux computers are all capable of being infected with a virus or other malware.

Additional information

  • See our malware and virus definitions for further information and related links.

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.

  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.

Malware For Mac Os

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.