Here are the basics of how anti-virus works…
“Virus has been detected,” says the Software from anti-virus manufacturers. I believe that is a voice that we are always used to? If you are likely me, you might have been wondering what is actually happening underground, it is that that I want to show you now. Maybe when I tell you that, you will now realize the reason why you need to update your anti-virus on a daily bases.
Most of the Anti-virus that you will find out there use two major techniques to detect viruses.
#1 Virus dictionary
One of the very common methods used by anti-virus manufacturers when detecting whether a particular program is a virus is through the use of virus dictionary. It is just like you are about to have a party. You have now give Bouncers standing order on those that are qualified to enter the Ballroom. That is exactly how it works. The anti-virus manufacturers have a dictionary that contains characteristic of viruses. They will always use this to decide what constitutes a virus.
It is all about a bit of code matching the known virus database, then the anti-virus program is to either delete, remove or repair the file.
#2 Suspicious behaviour
Another method being used by anti-virus manufacturers to detect whether a particular software is a virus or not is the behaviour. When a particular software is behaving abnormally or going to ” no-go area”, it will be termed as a virus and be added to the known virus database.
Another method that anti-virus manufacturers can use to detect whether a particular software has a virus or not is to emulate the beginning of the executable code before it is been transferred. If the program seems to be a virus or it’s using a self-modifying code, then it can be termed as a Virus. Like I said if it behaves in an abnormal way. it will be termed as a virus.
If you enjoy our article, sign up to get our next article in your inbox.
You need to confirm your subscription by clicking on the link sent to you. You can check the spam folder for it. Add us to your mailing list to receive directly from us.
PS: Click on the link below to sign up for my Online E-Course CRM Training. Make sure you confirm your subscription by clicking on the link sent to you. Thanks.