Virus Wont Let Me Open Anything I Download On My Macbook Pro

1. Virus Wont Let Me Open Anything I Download On My Macbook Pro Case
2. Virus Wont Let Me Open Anything I Download On My Macbook Pro 2017

I have tried every step listed here including running full system scans with AVG, Microsoft Essentials, Malwarebytes and then some from other similar sites with slight variations to remove it, but no luck for me. I still have a major block not letting me connect my desktop and it is surely not the internet connection itself. If you already installed it (red icon in the menu bar), follow the instructions at the 1st link below to remove it. BTW, it is NOT a virus. It is just a thief pretending to be your friend. Before I explain the Mac Defender / Mac Protector application, let me warn others NEVER CLICK TO INSTALL ANYTHING UNLESS YOU FOUND IT ON A LEGITIMATE WEBSITE. And when an app hangs, it freezes you out and won't let you do anything, including quit out of it. Enter: Force Quit. You can call up the Force Quit menu from the Apple icon in the upper-left.

This is an all-in-one summary on virus infecting MacBook Pro laptops, with a special emphasis on methods to remove all types of harmful code from them. Update: May 2020. MacBook Pro is a premium line of Apple's laptops. Such an honorable status, though, doesn't make them any better protected against malware than entry level Mac machines. With Touch ID on your MacBook Pro, you can quickly unlock your Mac and make purchases using your Apple ID and Apple Pay — all with your fingerprint. Learn about Touch ID.

I think my Mac has a virus!

If this is your first thought, then the next one is probably: how can I check for a virus on my Mac? Whatever your circumstances are, don't panic!

I also suggest you read the entire post without rushing to implement 'expert' recommendations. If you indeed have a virus, it happened due to a lack of knowledge, and the same lack of knowledge can make things worse. First, understand what the problem is and then try to fix it.

So, in short, here's what you should when malware is a suspect.

If you think that your Mac has a virus, the quickest way to verify it is by scanning the computer with the Malwarebytes for Mac program. Download a free version of Malwarebytes, and it will fully scan your Mac for malware in less than a minute.

Myth About Macs Being Free From Viruses

The myth that Macs are protected from viruses is just a myth. While Macs are less targeted than Windows, they still have their share of malware.

For instance, KeRanger ransomware was detected in 2016 and it designed for macOS. It even affected several Macs in Apple headquarters in Cupertino, CA.

In 2019 there were several Mac-specific malware programs detected:

• OSX/Linker – exploited a zero-day vulnerability in macOS
• LoudMiner – uses your Mac to mine Bitcoins
• OSX/NewTab – adds new tabs in Safari with malicious web sites
• NetWire – spyware

So, if you thought you were shielded from viruses because Macs don't get viruses, you were wrong.

Did you know?

The first ever virus was written for the Apple II computer by Rich Skrenta when he was 15 years old. The virus did not do any harm to computers; it displayed a following poem on the screen:

Typical Signs That Your Mac Might Have Malware

There are several symptoms that may (or may not) indicate that the Mac was infected with the malware:

• Your Mac is slow or crashes unexpectedly
• The startup disk is running out of space
• Pop-ups appear on the screen when you are online or offline
• The browser home page or search engine has changed without your permission

The symptoms mentioned above can be caused by other things, however. For instance, you may be running Time Machine backups that taking entire disk space.

Can i download purchased movies on macbook air. This article shows you how to download movies on Mac different ways in 2019. It's a good idea to download movies to watch them on a plane or anywhere else with no or poor Internet connection. Can you download movies on MacBook Air, MacBook Pro and iMac? The answer is definitely yes. Actually there is more than one way to do this. Movies and TV shows purchased on an Apple TV (4K) remain available for streaming, but are not actually stored there. Here's how to download the actual video file to a Mac. Movies purchased via. Go to the account overview page or the movie you want to download and press command and the F key to find on page the word ‘download' and I bet it's right in. You can transfer them to and play them on any computer authorized with the Apple ID used to purchase or rent the movie. The Store sells and rents both standard definition and HD movies.

If the browser home page has changed after installing an app, sometimes all you need is to change it back.

But if you suspect something, it never hurts to scan the Mac for malware.

Will Your Mac Tell You If You Have A Virus?

The answer is as always: it depends.

macOS has two malware protection mechanisms: Gatekeeper and XProtect.

The way the Gatekeeper works is by setting the Quarantine Flag when the file gets downloaded. So, when a user opens an app with this flag, the Gatekeeper will check if the app came from a trusted developer or not. If not, then it will pop a warning message.

This message does not necessarily mean that the app is malware. It only means the macOS does not know anything about it. It is possible to override the warning by going to the Security and Privacy pane in the System Preferences app.

XProtect is another built-in protection system on macOS. It contains definitions of many malware programs.

When the Gatekeeper on Mac checks the file marked with the Quarantine flag, it also searches the file signature in a malware database provided by XProtect. If the signature is found, then your Mac will tell you that you have a virus.

For instance, in April 2019 the XProtect was updated to include TrojanSpy.MacOS.Winplye, a Windows file that can run on Macs.

So, if you happened to download an app that contains this Trojan, the XProtect would prevent it from running. However, there is a caveat. You must have the security update installed on your Mac.

So, here is rule number 1 for anyone who wants to make sure that their Mac is secure: Always have automatic updates turned on.

Here's What To Do If You Think Your Mac Has a Virus

Now, when we know, all the theory behind viruses and malware, let's do some practical things.

When I called the Apple support and told them that my MacBook is slow the first thing they suggested to restart the laptop in Recovery mode. The next step was to install the antivirus.

If you have reasons to believe there is a malware on the computer, skip the first and download the antimalware program.

The Apple support guy directed me to install Malwarebytes (affiliate). He and I enabled the screen share and here is exactly what he told me to do:

1. Start Safari browser
2. Type Malwarebytes in the bar and click on the link
3. Click on the Free Download button
4. Open Finder and go to the Downloads folder
5. Double click on the Malwarebytes install file
6. The installer program will start
7. Keep clicking on Continue, Agree, and Install keys
8. The app will require to enter the admin password

After installation, Malwarebytes will offer 14 days of Premium option for free. Click Not Now. You don't need it.

When Malwarebytes starts, click on Scan pane on the left and then click on Start Scan. Wait until the scan finishes.

If Malwarebytes finds 0 threats congrats! If your MacBook is still slow, then there may be reasons other than malware.

Read my post about fixing the slowness: What To Do If MacBook Running Slow And Freezing

If a virus was detected, click on Confirm button to let Malwarebytes delete the threat, then restart the Mac and run the scan again. If the next scan finds new threats keep restarting and scanning until all threats are gone.

Choosing The Best Antivirus

Is free Malwarebytes a good antivirus? For a long time, I thought so, and I was actually actively recommending it until I did the following test.

I injected my MacBook with 117 malware samples (including Trojans and Ransomware). I tested 13 antivirus products.

The result surprised me – only one product (or two, depending on how you look at it) detected 100% of malware.

You can check the results of my test here: Best Malware Detection App for Mac Removes 117 Viruses In 5 Min

There are other antimalware programs besides MalwareBytes, and many of them are good.

The natural question is which one to choose?
I tried to find the answer, and here are my findings:

There are good several antimalware software choices. The most known are Norton, Intego, Bitdefender, Kaspersky, Trend Micro, Avast, VIPRE.

You can search for rankings published by bloggers, but the thing is they are more likely to promote their affiliate links.

So, how do you choose? The decision depends on your browsing habits.

If you are relatively conservative and cautious when clicking on links, then free AV may be good enough for you. Keep scanning your laptop periodically, and you'll be fine.

If you often visit sites that likely to have malware (torrents, adult, social media) then invest in active protection provided by paid versions.

When choosing the antimalware, consider testing at least two solutions. Then select the one that easier to use. Also, see if it's using too much CPU with the help of Activity Monitor. The last thing you want is an antivirus that slows down the computer.

To learn more check out my post:

Virus Wont Let Me Open Anything I Download On My Macbook Pro Case

Does Antivirus Guarantee Protection

Virus Wont Let Me Open Anything I Download On My Macbook Pro 2017

Unfortunately, not. There is a term called zero-day vulnerability.

The usual cycle goes like this: someone finds a vulnerability in the software, e.g., in macOS. The first day the vulnerability is found is called zero-day.

The hackers will create software that exploits the vulnerability, and every computer is at risk even the ones that have an antivirus installed.

Then antivirus companies find a solution which needs to be downloaded and installed on the computer. The shorter the period between discovering a vulnerability and the fix fewer computers will be affected.

Bottom line, antimalware products protect from known viruses; they do not protect from malware, which was not written yet.

A Side Note On Ransomware

Ransomware is probably the biggest reason why you would want to have active antivirus protection.

With other types of malware: adware, spyware, Trojans, you can download the antimalware software, scan and in most cases, remove the threats.

When you found out about the Ransomware in most cases it's too late: the disk was already encrypted and the time to pay the ransom is ticking. There is no point downloading anti-malware software because it will not be able to decrypt your data.

However, there are exceptions. In some cases, the effects of the Ransomware can be rolled back.

There is a web site nomoreransom.org which was founded by several organizations in order to fight this issue. They have a list of malware that they can help to fix.

First, you have to identify the type of Ransomware you encountered by following their instructions. If the threat is in their list, they will provide decryption tools.

How to prevent Ransomware

While preventing it is hard, there is one thing you can do to minimize the effect. You should invest time in a backup strategy.

The good thing is that Apple has a good backup software called Time Machine. I wrote an article which will teach you how to use it properly:

In case your MacBook was hit by Ransomware all you need is to restore the previous backup and scan for viruses.

Here's What I Do To Stay Secure

1. I never open links from emails. If I do, I always check the sender of the email first and then check where the link is pointing to.
2. I always submit downloaded packages to VirusTotal before running on my Mac.
3. I make backups with Time Machine.
4. I save my documents in DropBox. Even if the document was damaged by malware, and the damaged file was uploaded to the cloud, the DropBox keeps a 30-day history of my documents versions, so I can always rollback to the non-damaged version of the document.
5. I use Norton 360 Deluxe to scan my MacBook periodically.
6. I have automatic updates turned on.

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Image Credits: Pixabay, NoMoreRansom, Wikipedia