COMPUTER THREATS SECURITY
WHAT IS A COMPUTER VIRUS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Program File Virus
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Worm
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Boot Sector Virus
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Creeper
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Detailed explanation-1: -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-2: -Resident Virus – A virus which saves itself in the memory of the computer and then infects other files and programs when its originating program is no longer working.
Detailed explanation-3: -The multipartite Virus is also known as a hybrid virus because it can affect two systems simultaneously. Its way of attaching and infecting the computer system is unique compared to others. This Virus attacks both the boot sector and the executable files.
Detailed explanation-4: -Since the MBR executes every time a computer is started, a boot sector virus is extremely dangerous. Once the boot code on the drive is infected, the virus will be loaded into memory on every startup. From memory, the boot virus can spread to every disk that the system reads.