3.8 Worm 


CATEGORIES OF COMPUTER VIRUSES



This program has the property of self replication causing negative effects on the computer.

A worm virus is a computer virus that can self-replicate, mostly without human intervention.

 Other kinds of computer viruses rely more on curiosity or user naivete to spread.

famous examples:

  •   I LOVEYOU,
  •  Michelangelo, 
  •  MSBlast worms are .

3.9 Trojans  





Trojans can un approved tracing of important login details of users online.

  •  Email Virus.
  •  This is a virus spread through an email. 
  • This virus hide in an email and when the receiver receives the mail it is spread widely 

 3.9 Browser Hijacker 




It can be spread while downloading; it affects the browsers functioning of

 basically redirection of the user to certain sites.

Example is: the cool web search Boot Infectors It include the root sector and the

 master boot record, they infect the hard disk or the floppy.