Question

help me about boot virus,fat virus,resident virus,macro virus ,file or program virus? ?

Answer 1

Boot Virus: It is coded in a way to affect the boot sector of the computer, preventing the computer to boot properly.

Fat Virus: The file allocation table or FAT virus attacks the File Allocation Table (FAT) of computer system, its alters the index table hence the data stored in it is not accessible we may lose our data completely. (Souce; https://www.kencorner.com/computer-virus/)

Resident Virus: A resident virus is a computer virus that stores itself within memory allowing it to infect other files even when the originally infected program has been terminated.

Macro Virus: It is coded in same macro language used by applications such as MS Excel, etc. It executes a sequence of actions once the infected application is opened and infects every document present in the infected computer.

Program Virus: It infects the executable files like .exe, .msi, etc in the infected computer