File virus
- Most viruses fall into this category. A virus attaches itself to a file, usually a
program file.
What is a computer virus?
There are many types of computer viruses including file viruses, boot
sector viruses and Trojan Horse programs.
File virus
- Most viruses fall into this category. A virus attaches itself to a file, usually a
program file.
Boot sector
virus - These viruses infect floppy and hard drives. The virus program will load
first, before the operating system.
Trojan Horse
- These programs appear to be something other than what they are, for example a
"virus" that is disguised as a legitimate software program. Some virus experts
do not classify Trojan Horse programs as true viruses, because they generally don't
replicate.
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