Saturday, December 22, 2012
Difference between Virus and Worm
Labels: Computer Networks
Viruses and worms are characterized by the ability to make and spread copies of themselves.
The difference between them is that a worm is a complete program that replicates itself, while a virus is a bit of code that is inserted (and inserts copies of itself) into another piece of software or a file, so that it is executed as part of the execution of that piece of software or as a result of opening the file.
Viruses requires the spreading of an infected host file, while worms are programs that replicate themselves from system to system without the use of a host file.
Worms spread more rapidly than viruses. Worms consumes too much system memory or network bandwidth.
Examples of Virus: Michelangelo, I LOVE YOU, Melissa etc.
Examples of Worms: Blaster Worm - this worm allows malicious users to control your computer remotely.