Contrary to popular belief, even Apple computers may be susceptible to malware infection. However, unlike Windows, the macOS architecture significantly complicates the work of viruses, some of which rely more on social engineering than on system vulnerabilities. On how to check your favorite MacBook for viruses, we will tell today.
What you should know about viruses
MacBook and iMac viruses can be both targeted — in this case, the attack is aimed at obtaining personal data for profit — as well as massive, when the attackers target the unfair dissemination of services and advertising.
In connection with these features, virus developers use very local vulnerabilities, coupled with social engineering, literally forcing the user to install the virus on the Mac. In other words, your Mac itself cannot “become infected” (with very few exceptions), and “infection” is most often preceded by specific actions. On the one hand, it simplifies virus localization and Mac software repair, since such “software” leaves obvious traces; on the other hand, ordinary antiviruses are practically powerless here.
And yet, how can I check Mac OS for viruses? Online services offer a lot of different utilities for cleaning up Mac OS viruses, however such utilities can be useful when working with professional programs that leave a lot of temporary files and simple garbage, but in our case they are more harmful. In addition, if the free program offers to pay for the removal of viruses, it is a reason to guard.
The fact is that Apple itself is closely watching the emergence of new viruses and, if for some reason it is impossible to close a vulnerability (for example, a vulnerability is found in third-party applications), the Mac will simply prevent you from installing malware. Remember that any change in macOS requires confirmation?
Anyway, many viruses for mac Os are disguised as quite safe utilities – for example, Flash Player or the wipers described above.
Most often, a MacBook or aimag infection is accompanied by deliberate advertising in the browser window with an ironic suggestion to clean the system, as seen in the image below. Of course, we will not accept this application.
How to clean the Mac from viruses?
It just so happens that cleaning up MacBook for viruses is much more difficult than removing any Trojan from PC. The point is precisely in the specifics: on MacBook or Aymak, the virus, in fact, is not so in the usual understanding of this definition, which somewhat complicates the search for malware. Sometimes a virus may not be a program at all: attackers can substitute the DNS server on your Mac (or router, but this is another case), which also leads to the appearance of advertising or, even worse, to the substitution of web pages that will allow hackers to seize information about bank cards and other data.
Fortunately, it sounds worse than it actually is. All you need to do – check the DNS server in the system settings. To do this, open the System Settings and select “Network”, then click on the “Advanced” button. If any foreign addresses are set in the DNS tab, they should be removed immediately. Be careful not to delete the address of your router! It can be checked in the “Routers” line.
Now you know how to check your iMac or MacBook for viruses from the most common list. But how to deal with them?
Firstly, you should check the network settings as often as possible, especially if you are an employee of a large institution and you are in a potentially targeted group. As practice shows, some less common viruses reveal themselves only after years of “productive work”, remaining unnoticed. Fortunately, most problems can be solved by simply removing unwanted addresses from the network settings. On the other hand, if the virus is “firmly entrenched” on your Mac and the server constantly appears again, you should seek help from specialists, since there is no universal solution for these problems and you have to look for an individual approach to each new trojan.
Secondly, always try to install minor system updates and, conversely, do not rush to major updates. The fact is that releases of macOS name assemblies often mate with the appearance of new vulnerabilities, the search and elimination of which takes from a couple of days to several months.
Finally, it is advisable not to install questionable applications in general, and Flash Player in particular. As Steve Jobs used to say, Flash is an outdated technology that bears only problems.