What does an antivirus scan do?

The label "antivirus" was originally given to programs that identified and removed particular types of malware called a virus. Today, however, antivirus programs are useful for preventing infections caused by many types of malware, including worms, spyware, Trojan horses, rootkits, spyware, keyloggers, ransomware and  adware. So it is very important to use antivirus software as well .

Everyone has some different questions about antivirus, like is what does an antivirus scan do ? The answer is that the antivirus has the power to detect all the problems that can harm your Desktop , laptop or mobile .Every antivirus has a different system and technology to find and justify the bugs problems to be fixed and it also has the solution to make the programs work perfectly . If we look further to find anything unique things  on various antivirus companies ? then we will come to know that, every establish company has their own secret sauce that makes their technology just a little bit different from everyone else, so it gets increasingly difficult to say anything that How ! and  what makes antivirus go.

Some or many  people know and may  hope that  only that anti-virus is supposed to protect them, but they don't know how and can think it should protect against any nasty and harmful thing under the moon. Some people understand that anti-virus software comprises some sort of signature-scanning technology but it's not true at all , and a surprising number of people believe this is where anti-virus technology stopped litrely.

Overall there are 3 types of common scanning method  provided to  the antivirus products detections you’ll find out there and what they do. it’ll hopefully give you a little glimpse into what’s out there and what you should expect your anti-virus product can do.


Specific Detection  l  Generic Detection  I  Heuristic Detection

This kind Of detection is the main thing which  is what a lot of people think of when they think of anti-virus scanners. It looks for known malware's by a specific set of  bugs and characteristics. To detect the malware specifically, the scanner looks around for that signature in a fairly to all particular places , because  Each malware uses its own code to do its thing .

Afterwards, generic detection  previously tries to find all unknown viruses by looking for known suspicious behaviour or the file structures. This is where the process scanning gets more broad and speculative.

Basically, with the heuristic detection majorly applies the “smell test” to all files. This test looks around the machines program misbehaviour and look Is there anything about this file that looks hinky or unusual ? Are its structures are behaving odd in a way that would imply that it’s trying to hide or running from  something? Does it behave in a way that benign files generally don’t?

One of this technique can be works fast because it can exclude clean files as much more quickly if a researcher does all the things right, but it’s also fairly easy to evade this sort of detection. Change the code, move it somewhere else, encrypt it, or hide it in some other way, and then the threat doesn’t get detected anymore.

 Overall antivirus products that focus on smaller businesses naturally fall somewhere in between . Hopefully, this also gives you a better idea to think of what is actually going on behind the scenes of your anti-virus scanner so it seems to become more and more friendly and approachable