How your Antivirus Works ???

How your Antivirus Works ???

antivirus virus software works working

Antivirus are generally software used to detect, prevent and remove malwares from our computer.

"A computer virus is malicious software (also known as "malware") that can copy itself and infect other software or files on your computer." -Microsoft 

You may amazed how your antivirus scans and prevent virus from affecting your system.Here we explained simply what is a virus and how an antivirus actually works to detect the virus.

Virus:

Computer virus are software programs that can replicate themselves(copy themselves) into file or disk or boot sector then affects our computer.Most virus programmers target Windows Operating system only.

Below is the screenshot of msblast virus which after affecting shows the following message to Bill gates

" I JUST WANT TO SAY LOVE YOU SAN!! BILLY GATES WHY DO YOU MAKE THIS POSSIBLE? STOP MAKING MONEY AND FIX YOUR SOFTWARE !!

Courtesy : Wikipedia 

computer virus
So Computer virus causes billion dollar loss to computer industry by causing System failure, maintenance cost etc. 

Antivirus:

Antivirus software is used to detect, prevent and remove virus and malware from your computer.There are lot of antivirus software available both as paid as well as free versions.

Generally people don't have much knowledge how these antivirus actually works.Antivirus scan and identify the infected files based on the following methods:

Signature based detection:

Comparing content of the file to the virus dictionary containing signature of virus.

Heuristic based detection:

Based on malicious activity detection to find the virus

File emulation:

Executing the file in virtual environment by antivirus and by analyzing what the program perform we can find the malicious programs easily

These are the some of the widely used techniques in antivirus software.

Hope you enjoyed the post !!!




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About Native dev

I am Vicky AV, Engineer, Pro Blogger & Twitterati.
I created this blog to post some interesting technical stuff that I feel everyone should know. I hope you find these interesting too. Follow me on Twitter
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3 comments:

  1. Antivirus are a must for any network or internet connected computer, to detect, remove and prevent all sort of malicious software !
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  2. Antivirus are a must for any network or internet connected computer, to detect, remove and prevent all sort of malicious software !

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  3. If you're going to use one piece of software on your computer it should be an antivirus program. Windows based computers are extremely vulnerable to viruses and spyware and nowadays there are tons of different trojans being made that will harm your computer. mcafee support

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