FUNDAMENTALS OF COMPUTER

Detailed explanation-1: -A boot sector virus is a virus that resides in a portion of a computer drive that is only read when the computer is booted up, at which time the virus is loaded into memory. Boot sector viruses often spread through floppy disks, which also have a boot sector which can become infected.

Detailed explanation-2: -Boot record infectors – These viruses are known also as boot viruses or system viruses. They attack programs stored on bootable floppy or hard disks. Every time a user boots up, the virus-infected code automatically runs as well.

Detailed explanation-3: -A boot virus (also known as a boot infector, an MBR virus or DBR virus) targets and infects a specific, physical section of a computer system that contains information crucial to the proper operation of the computer’s operating system (OS).

Detailed explanation-4: -Master boot record files: MBR viruses are memory-resident viruses and copy itself to the first sector of a storage device which is used for partition tables or OS loading programs . A MBR virus will infect this particular area of Storage device instead of normal files.

Detailed explanation-5: -A boot sector virus is a type of malware that infects a system’s boot partition or the Master Boot Record (MBR) of a hard disk.