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Here's how to remove a virus on a Mac

marzo 24, 2020

It can no longer be formally affirmed that there are no viruses on Mac, but these remain exceptional.

Typically, cybercriminals are less inclined to develop programs that target Macs for two very simple reasons: their number is limited and their operating system is very secure. In addition, Apple is extremely vigilant about the safety of its products and regularly releases updates to protect them from possible attacks.

However, in 2016, the apple brand had to face its first software ranon: KeRanger. The latter took advantage of a system flaw and went through the BitTorrent platform to infect Macs.

Recommended article: The best antivirus for Mac.

Malware: definition

Malware is a program (virus, spyware, Trojan horse, ransomware) whose purpose is to hijack your private information or take possession of your computer for criminal purposes.

Malware is often bundled into official programs for you to install on your computer. They can appear in advertisements, emails … Once installed on your computer, they collect information about you and, in most cases, try to steal your bank details.

The height of cynicism, some malware masquerades as antivirus!

So, never download MacDefender, MacProtector or MacSecurity.

They work in the following way: a hacker takes control of a legal site and directs you to a fake website. You are asked to enter your Apple ID to install an antivirus. Once on your computer, the program pretends to scan it, find a virus on it, and then prompts you for your bank details to delete it.

Note that MacKeeper is another software that has been reported to be so malicious. It is not a virus as such, but the commercial practices of its manufacturers are definitely not advisable. They were, in fact, sentenced for intentionally reporting false security breaches on computers. The goal ? Get their customers to get the paid version of lantivirus for $ 39.95 (35.62).

Remove malware for free

Important point: you should never pay to remove a virus from your computer. Never enter personal information, especially your bank details, on a site or in a program that promises to repair your computer. The same is true by telephone. If someone calls you and says they know your Mac is bad, hang up.

If while browsing the web you come across a site claiming that your computer is infected, perform the following steps:

  • Quit Safari using the shortcut Command + Q or by going on Safari Quit Safari.If it doesn't work, click Apple top left then on Force quit.
  • Go to the folder Download and place the unknown documents in your Basket.

If you believe that you have inadvertently downloaded malware, then perform the following steps:

  • If the app you suspect is open, write down its name and close it.
  • In Finder, find the folder Utilities, or use the shortcut Cmd + Shift + U.
  • Click on Activity monitor.
  • In the menu bar at the top of the screen, go to Presentation All operations.
  • In Activity Monitor, type the name of the suspicious application in the search bar.

Also check that MacDefender, Mac Security or MacProtector is not installed on your computer.

  • If one of these programs appears, select it and click with leave.
  • Open your file Applicationsand locate the suspicious program.
  • Drag its icon to your trash and empty it.

Do not hesitate to also consult Apple Support, and if the doubt persists, make an appointment in an Apple Store.

Ranon-software, ransomware and ranon software

Ranon-software, ranon software, and ransomware are synonyms that point to the same problem: malware, the purpose of which is to extract money from you.

A software ranon encrypts the data on your computer, and to be able to find its use, it asks you to pay a ranon. Note that there is no guarantee that your computer will be unlocked when you pay.

In the case of KeRanger in 2016, the demand was 400 dollars paid in Bitcoins.

Fishing, phishing and phishing

Compared to PCs, Macs are particularly well protected against viruses. The risk lies mainly in human error.

Phishing, also known as phishing and phishing, is one of the main causes of online piracy. It involves picking someone up by e-mail to reveal personal information (bank details, access codes for online services).

Phishing emails can be particularly convincing (official logos, names of people who work in the company), so you have to be very careful.

Note that the hooking can be transmitted to you by a contact, without their knowing it. So, before downloading an attachment or clicking on an unknown link, make sure that it was really sent by someone you know. If this is an official body (tax, CAF) do not hesitate to call them if you have any doubts.

Protect your Mac

To protect your macOS from malware, make sure it is up to date and allows verified applications to be downloaded.

Update your Mac

  • See you on the Apple About This Mac.
  • Click on Software update Update.

To activate the automatic download, go through the same steps as above, then:

  • Go to the Apple Preferences System
  • Click on Software update Forward …
  • Under Automatically :, check all the boxes.

Allow verified applications

  • See you on the Apple Preferences of system.
  • Choose Security and confidentiality.
  • In the tab General, under Allow download apps from :, select App Store and identified developers.

Mac & Antivirus

Opinions differ in the Apple community: some are for antivirus, others are not.

Macs are commonly considered safer than PCs, reason. But as we have seen, they are not waterproof all malware.

If you want to scan your Mac to see if it has suspicious programs, you can use the trial version of ClamXav.

Once downloaded, open ClamXav and click on the button Start Scan. Note that the process takes more or less time depending on the number of files stored on your computer.

. (tagsToTranslate) Mac virus (t) Apple (t) Antivirus (t) Ransomware (t) ransomware (t) home-connected software (t) computers (t) table-of-contents