Malware For Mac

According to Malwarebytes, 2017 saw a 230% spike in malware activity within Mac ecosystem. The notable examples include Proton Remote Access Trojan and KeRanger virus. But whatever is that ends with “-ware” on your Mac — ransomware, adware, malware, or scareware — we’ll share a couple of methods to delete it. So, welcome to our Mac Malware Removal Guide.

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2019-10-24  Malwarebytes for Mac distrugge virus, adware, ransomware e altri malware per Mac, offrendoti una protezione ottimale e permettendo al tuo Mac di continuare a funzionare come un Mac. Mac Internet Security X9 contains two of Intego's best-selling security products that protect your Mac against malware and network attacks: Intego VirusBarrier X9 antivirus software protection, and Kaspersky Internet Security for Mac Kaspersky (Commercial Trial).

Mac malware: The symptoms

Oftentimes a malware app would trick you into believing it’s perfectly harmless. Such apps are known to disguise themselves as antiviruses, extractors or video players. But how to check your Mac for viruses? Here are some of the tell-tale signs:

  • A sudden drop in Mac’s performance or frequent freeze-ups.
  • Pages that you visit get obscured with ads.
  • Unexpected Mac reboots or apps starting for no reason.
  • Your browser installs suspicious updates automatically.

How to remove a virus from Mac

2019-10-29  If you think your computer has been infected, use this step-by-step guide to learn how to remove malware from Mac and PC computers. Step 1: Disconnect from the internet. Disconnecting from the internet will prevent any more of your data from being sent to a malware server or the malware from spreading further. But whatever is that ends with “-ware” on your Mac — ransomware, adware, malware, or scareware — we’ll share a couple of methods to delete it. So, welcome to our Mac Malware Removal Guide. Mac malware: The symptoms. Oftentimes a malware app would trick you into believing it’s perfectly harmless. 2019-10-24  Malwarebytes for Mac vernietigt virussen, adware, ransomware en andere malware voor de Mac. Hierdoor bent u beschermd en blijft uw Mac werken als een Mac.

Just as with any disease, to doctor a virus you need to remove the infected part of your software — as simple as that.

Remove malware from Mac manually

If you know which app on your Mac is malicious, you’re half-way through the problem. First of all, you need to close the app and then root it out from the system processes.

  1. Open Activity Monitor (type its name in the Launchpad).
  2. Locate the problematic app in the Processes.
  3. Use [x] button to quit the process

Now go back to your Applications and move the app to the Trash bin. Immediately empty the Trash.

This method is simple, but for the best malware removal results, you’d have to invest a bit more time. There are still parts and pieces of the virus app scattered around your system folders. It’s a bit like killing a dragon that re-grows its head after you’ve chopped it off. To remove malware from your Mac completely, it’s better to use a powerful uninstaller.

QUICK TIP:
Do a quick search for virus-infected .DMG files within your Downloads. The potential culprits could be recently downloaded files, especially media-related ones. Delete them and empty the Trash bin.

Get rid of malware using CleanMyMac X

CleanMyMac X has a 10-year reputation of guarding Macs around the world. The app will scan your Mac for any vulnerabilities and offer immediate removal if it finds something suspicious. CleanMyMac detects thousands of malware threats, including viruses, adware, spyware, ransomware, cryptocurrency miners, and more. The app’s database is regularly updated to keep all those “-wares” away from your Mac.

Here’s how to remove malware from your Mac:

  1. Download CleanMyMac X — it’s free to download.
  2. Click Malware Removal tab.
  3. Click Scan.
  4. Click Remove.
  5. Done!

How to remove Mac Adware cleaner

Ironically, the app called “Mac Adware cleaner” maybe itself be the very source of annoying adware on your Mac — the classic case of a wolf in a sheep’s skin. To remove it, you can use CleanMyMac (which is a legit app that has a 4.5-star rating from MacWorld magazine). Additionally, you can browse through your Login Items list to stop any dubious apps from auto-launching. Below is how to do it.

Remove Mac malware from your Login Items

Most adware or spyware will try to sneak inside the bootup process. Good news, you don’t have to be Kaspersky to prevent this.

  1. Go to the Apple menu > System Preferences
  2. Choose Users & Groups section
  3. Make sure if your username is highlighted
  4. Open Login Items tab

Now use the “—” sign to disable all the suspicious apps (like Mac Defenders) that you’ll find. Restart your Mac for the changes to take place.

How to get rid of pop-up ads on Mac

Advertising pop-ups are browser-related, so whatever browser you are using, be prepared for a thorough cleanup. First off, don’t buy into whatever the ad is telling you. Some scary alerts would mention 343 viruses found on your Mac forcing you to immediately install a “Mac Defender” or “Mac Security” tool. Just ignore it and don’t click anywhere on the pop-up. Use [x] button and if it doesn’t close the ad, Ctrl + click the browser icon to quit the browser completely.

QUICK TIP: Hold the Shift key when starting a new Safari session. This way all your previous tabs (including the ad pop-up) will not be reopened.

How to block pop-up ads in Safari

  1. Open Safari preferences (in the top menu)
  2. Go to the Security tab
  3. Tick “Block pop-up windows”

How to get rid of pop-ups in Chrome

  1. Open Chrome Settings (a three-dot icon)
  2. Click Advanced
  3. Go to Privacy and security > Content setting
  4. Locate the Popups tab and block them from appearing

Additionally, make sure your browser’s homepage is set to standard Google page or other trusted source.

Clean up extensions to remove adware from Mac

Apple lists several browser extensions as potentially malicious. The list includes:

Amazon Shopping Assistant by Spigot Inc.
Slick Savings by Spigot Inc.
FlashMall
Cinema-Plus

This is just to give you an idea how different these adware extensions could be. But if you’re looking how to remove malware from Mac Safari browser, follow this path.

Remove extensions in Safari

  1. Go to Safari Preferences
  2. Choose the Extensions tab
  3. Select an extension and click Uninstall

Disable browser extensions in Chrome

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And here’s how to remove malware from Mac Chrome. Open Chrome and click Window in the top menu. In the bottom of the list choose Extensions. This opens up the list of all your installed extensions. Now use a trash bin icon to remove the ones you suspect are adware viruses. Right after that, your Chrome experience should get much less distracting.

Just to be doubly sure, we recommend you to remove all the extensions you'll find. Later you can re-install each one separately.

Launch Agents and Daemons: Where else to look

So far we’ve covered browser Extensions, Applications, and Login Items trying to remove malware from your Mac. But these are not the only locations where malicious agents may be hiding. Another type of system services that could be affected by malware are the so-called Launch Agents and Daemons — yes, the name does derive from the word demon. These are small helper programs that stealthily run in the background, like software updaters or automatic backups.

While Launch Agents and Daemons are two different entities, both can be infiltrated by malware. As it often happens, trojan apps would place their executable files within the Launch Agents folder. The result — the virus app launches automatically and potentially harms or steals your data.

How to remove daemons and agents from the Mac’s startup

  1. Click Finder
  2. Choose Go > Go to Folder
  3. Type in: /Library/LaunchDaemons

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For Launch Agents, repeat the steps above, but this time search in 2 more locations:

/Library/LaunchAgents
~/Library/LaunchAgents

Inside you’ll find a bunch of PLIST files and if some of them look suspicious to you, delete them. Sure, the names of these files may not be very telling, but if you already know the problematic app that you are after, knowing this folder may help you fully extinguish it.

Don’t forget to reboot your Mac — until you do, all these files are still in memory.

One more way to remove daemons, agents, and plug-ins

If the manual path described here sounds too complicated, you can again be rescued by CleanMyMac X. This app has a special tool to remove malware Launch Agents.

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  1. Download CleanMyMac X (it’s free to download).
  2. Install the app.
  3. Click Optimization tab > Launch Agents
  4. Click Perform.

By the way this app has a real-time anti-malware monitor. It monitors for any problematic apps that try to get into your Launch Agents. If it finds such, it will notify you and offer to remove the intruder.

If all else fails

Below a few more ideas to help you remove malware from Mac.

  • Switch to a different user account and do a full system cleanup.
  • Restore your Mac using Time Machine (to the point before it got infected).
  • Update all your software , including the macOS.

OK, looks we’ve covered how to remove malware from Mac including both manual and software solutions. Hope your Mac stays virus-free and may you never click on those scary Mac alerts again.

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Malware — short for malicious software — refers to various types of programs written with the purpose of gaining access to a computer for malicious intent, and often without the user’s knowledge. Traditionally, the goal of malware has been to generate revenue, either by stealing your personal information for resale on the dark web, or by encrypting data and demanding ransom payment in order for a victim to regain access to their files. Malware can infect computers and devices in several ways.

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Malware comes in a variety of forms, such as viruses, spyware, adware, ransomware, and Trojans. And, contrary to the popular belief that Macs are safer than PCs, both platforms can be vulnerable to malware.

Cybercriminals can use malware to steal personally identifiable information (PII), which can include Social Security numbers, debit and credit card numbers, banking account passwords, and more.

Stolen personal information could make you vulnerable to identity theft. That’s one big reason you should know the signs of malware and understand the process for malware removal.

One indication of malware is when your computer starts to act oddly. Here are some common signs to look for in a potentially infected computer: slow performance, multiple pop-up windows, an unfamiliar browser toolbar, and ads with inappropriate images or that are difficult to close.

How your devices can get infected with malware

There are a number of ways that your device can be infected with malware, but many times it comes from a malicious website, or a site that attempts to install malware onto your device. Malicious websites work in a couple of ways. They often require some action on your part by asking you to install software that your computer appears to need, or by asking for permission to install one program, but installing a different one.

However, in the case of a drive-by download, the website will attempt to install software on your computer without asking for permission first. Drive-by downloads can be installed when you look at an email, browse a website, or click on a pop-up window with text designed to mislead you, such as a false error message.

If you think your computer has been infected, use this step-by-step guide to learn how to remove malware from Mac and PC computers.

Step 1: Disconnect from the internet

Disconnecting from the internet will prevent any more of your data from being sent to a malware server or the malware from spreading further. It’s important to stay offline as much as possible if you suspect that your computer has been infected. If you need to download a removal tool, disconnect after the download is complete and don’t connect again until you are sure that the malware has been removed.

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Step 2: Enter safe mode

Safe mode, often referred to as safe boot, is a way to start your computer so that it performs checks and allows only the minimum required software and programs to load. If malware is set to load automatically, this will prevent the malware from doing so, making it easier to remove.

For Mac:

1. Start (or restart) your Mac, then immediately press and hold the Shift key. The Apple logo will appear on your display.
2. Release the Shift key when you see the login window (if you are asked to log in twice, learn more about what to do here).

For Windows:

1. Restart your PC.
2. When you see the sign-in screen, hold down the Shift key and select Power → Restart.
3. After your PC restarts, to the “Choose an option” screen, select: Troubleshoot → Advanced Options → Startup Settings.
4. On the next window, click the Restart button and wait for the next screen to appear.
5. A menu will appear with numbered startup options. Select number 4 or F4 to start your PC in Safe Mode. (safe mode).

Step 3: Avoid logging into accounts during malware removal

Be careful to not expose passwords though a copy-paste function or by clicking a show password box if you suspect your computer has been infected. Keylogger viruses are a common component of malware, which run invisibly and are designed to capture your keystrokes. To avoid sharing your personally identifiable information, refrain from logging into sensitive accounts while your device is infected.

Step 4: Check your activity monitor

If you know that you’ve installed a suspicious update or application, it’s important to close the application if it’s running. You can do so by using your activity monitor. This shows the processes that are running on your computer, so you can manage them and see how they affect your computer’s activity and performance.

Malware can take up resources on your computer, so check the CPU tab to see which applications are working the hardest. If you are able to find the suspicious application, you can close out of it through your activity monitor and then delete the application from the Finder menu (Mac) or uninstall it from your System Settings (Windows).

For Mac:

In Finder select → Applications → Utilities → Activity Monitor → Select Application → Quit

For Windows:

Settings → Administrative Tools → Resource Monitor → End task → Right Click → End Process

Step 5: Run a malware scanner

Fortunately, malware scanners can remove most standard infections. It’s important to keep in mind that if you already have an antivirus program active on your computer, you should use a different scanner for this malware check since your current antivirus software may not detect the malware initially. If you believe your computer is infected, we recommend downloading an on-demand scanner from a reliable source, such as the Norton Security Scan, and then installing security software which provides protection against existing and emerging malware, including ransomware and viruses, such as Norton Security software.

Step 6: Fix your web browser

It’s common for malware to modify your web browser’s homepage to reinfect your Mac or PC. Check your homepage and connection settings using the steps below for common browsers. Note that you will need to connect your computer to the internet to complete the following steps.

Internet Explorer (for Windows only):

  1. Select the Tools icon.
  2. Click Internet options.
  3. In the General tab, find the “Search” section and click Settings.
  4. Verify your default homepage.

Chrome (for Windows and Mac):

  1. In the top right corner of your Chrome browser, click More → Settings.
  2. Select the dropdown menu in the “Search engine” section.
  3. Verify your default homepage.

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Safari (for Mac only):

  1. In the top left corner of your screen, select Safari → Preferences → General.
  2. Next to “New windows open with” and “New tabs open with,” select Homepage.
  3. Next to “Homepage,” you will verify your default homepage.

Step 7: Clear your cache

After you’ve verified your homepage setting, you should clear your browser’s cache. This is a temporary storage location on your computer where data is saved so your browser doesn’t need to download it each time. Follow these steps below to learn how to clear your cache for Chrome, Safari, and Internet Explorer.

Chrome (for Windows and Mac):

History → Clear Browsing Data → Time Range → All Time → Clear Data.

Safari (for Mac only):

Select Safari → Preferences → Privacy → Manage Website Data → Remove All.

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Internet Explorer (for Windows only):

Select Tools → Safety → Delete browsing history.

What if malware removal is unsuccessful?

Sometimes the only way to be sure your computer is free of malware is to entirely reinstall the operating system and your applications or programs from scratch. Before wiping your hard drive, backup all your files to an external drive and consult Apple support or Microsoft support before beginning the process. Learn how to erase your startup disk prior to reinstalling MacOS in the steps below:

To reinstall MacOS

Restart the Mac and hold down Command-R after the startup chime sounds → Select Disk Utility → Erase.

To reinstall Windows

Follow the factory restore options. Windows gives you the option to keep your files or remove everything.

Select the Start button → Settings → Update & Security → Recovery → Reset this PC → Get started → Remove everything

How to help protect your devices from malware

Malware or viruses get on your computer in a handful of ways, so it’s important for computer owners to develop good online habits to avoid an infection. Use our best practices below to help protect your computer:

  • Avoid suspicious emails, links, and websites. Sometimes malware or viruses are disguised as an image file, word processing document, or PDF that you open. Additionally, if you find a strange new file on your desktop, do not open it.
  • Clear your downloads and empty your trash often. If you’ve deleted downloads or moved suspicious files to the trash, empty the trash immediately after.
  • Create strong passwords. Once you’re sure the computer virus infection has been cleaned up, change all your passwords, using unique combinations of letters, numbers, and symbols. Don’t use words found in the dictionary since they can be cracked via a dictionary attack. To keep your passwords secure, consider using a free password manager.

Malware is a dangerous threat to computer owners and their data. New types of malware are being discovered frequently, and its profitable nature makes it especially attractive to cybercriminals around the globe. It’s important to exercise good online habits and understand the signs of a malware infection.

If you suspect your computer is infected, act as soon as possible to prevent the spread of malware and protect your personal information. Learn more about how Norton Security helps protect your devices by providing protection against existing and emerging malware, ransomware, and viruses.

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Norton™ 360 brings real-time protection for your PCs, Macs, smartphones or tablets against ransomware, viruses, spyware, malware and other online threats.

Try Norton 360. Post, bank and shop from your device. We’ll keep it secure.


Editorial note: Our articles provide educational information for you. Norton LifeLock offerings may not cover or protect against every type of crime, fraud, or threat we write about. Our goal is to increase awareness about cyber safety. Please review complete Terms during enrollment or setup. Remember that no one can prevent all identity theft or cybercrime, and that LifeLock does not monitor all transactions at all businesses.

Norton by Symantec is now Norton LifeLock. LifeLock™ identity theft protection is not available in all countries.

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