Question

Define any three types of viruses.

Answer 1

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━━━━━━━━━━━━━━━━━━━$\mathfrak{\green{Answer.}}$One of the most common types of computer viruses is a file infector. These viruses attach to host files, so this means they usually stick to files you use often. Any time you open or run the file, the virus is running. It can even take over the file completely. 3
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Answer 2

Macro Viruses

These viruses infect the files created using some applications or programs that contain macros such as doc, pps, xls and mdb. They automatically infect the files with macros and also templates and documents that are contained in the file. They hide in documents shared through e-mail and networks.

Macro viruses include:

Relax

bablas

Melissa.A

097M/Y2K

Memory Resident Viruses

They usually fix themselves inside the computer memory. They get activated every time the OS runs and end up infecting other opened files. They hide in RAM.

Memory Resident Viruses Include:

CMJ

meve

randex

mrklunky

Overwrite Viruses

These types of viruses delete any information in a file they infect, leaving them partially or completely useless once they are infected. Once in the computer, they replaces all the file content but the file size doesn’t change.

Overwrite Viruses Include:

Trj.Reboot

way

trivial.88.D

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