what are the two types of viruses in computer?
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A computer virus is a malicious software program that can infect a computer by modifying or deleting data files, boot sector of a hard disk drive or causes a software program to work in an unexpected manner.
There are three types of computer viruses.
Boot viruses: They infect the boot record or master boot record. They replace the boot or master boot record that is responsible for loading the operating system, in memory by copying it elsewhere. It becomes active at the time of booting the machine. Example - Disk Killer.
Program file viruses: It infects executable files and programs those with extension like exe.com . These programs get loaded in the memory during execution. The virus becomes active in memory by replicating itself and infecting files on the disk. Example - Sunday, Cascade.
Macro viruses: It uses other application's macro programming language to distribute themselves. They infect documents such as M.S. Word or M.S. Excel and are typically spread to other similar documents.
Hope it helps u.
Here is your answer:
A computer virus is a malicious software program that can infect a computer by modifying or deleting data files, boot sector of a hard disk drive or causes a software program to work in an unexpected manner.
There are three types of computer viruses.
Boot viruses: They infect the boot record or master boot record. They replace the boot or master boot record that is responsible for loading the operating system, in memory by copying it elsewhere. It becomes active at the time of booting the machine. Example - Disk Killer.
Program file viruses: It infects executable files and programs those with extension like exe.com . These programs get loaded in the memory during execution. The virus becomes active in memory by replicating itself and infecting files on the disk. Example - Sunday, Cascade.
Macro viruses: It uses other application's macro programming language to distribute themselves. They infect documents such as M.S. Word or M.S. Excel and are typically spread to other similar documents.
Hope it helps u.
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