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Saturday, 15 February 2020

How computer virus spread And Antivirus





Virus
Biological virus:
It is tiny organism that attack biological cells and effect them by reproducing its replicas.

Computer virus is a small program that attach itself to a computer program or software, copies itself automatically to other locations and use computer resources illegally.


How computer virus spread
Virus can spread by
Clicking or opening it.
By swapping disc or usb with an infected computer.
Opening a suspicious web page.
Downloading and installing some software from non recognized publisher





Antivirus
Are programs used to remove virus.
Every virus has a signature consist of hexadecimal code.

Antivirus removes virus by detecting this code that is uniquely identified.



Computer crime

Any crime done with the help of computer technology comes in the category.
E.g. theft, sabotage, fraud, attacking computer system, murder, kidnap.
The person who breaks into a computer system is called a computer hacker.





Virus Hoax
False reports usually generated by Emails telling not to open some email having a specific title.
Tell usually impossible things.
Like your computer can go into a state of infinite binary loop. Which can burn your CPU.






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