CLASSIFICATION OF CLASSIFICATION OF VIRUSES VIRUSES

By the end of our presentation you will know By the end of our presentation you will know all about all about

File virusesFile virusesBoot sector virusBoot sector virusMarco virusMarco virus

File VirusesFile Viruses

A file virus is a virus that affects all the A file virus is a virus that affects all the files stored in the computer.files stored in the computer.

Like all viruses, it can get into your system Like all viruses, it can get into your system through e-mails, files, data sticks and of through e-mails, files, data sticks and of course, games.course, games.

Boot Sector VirusesBoot Sector Viruses

A boot sector virus invades one of the sections A boot sector virus invades one of the sections of the Hard Disk or, if you have an old computer of the Hard Disk or, if you have an old computer floppy disk.floppy disk.

A boot sector virus puts its own operation A boot sector virus puts its own operation instructions for the disk operating system or the instructions for the disk operating system or the Master Boot Record (MBR). Master Boot Record (MBR).

The MBR is small program that runs every time The MBR is small program that runs every time the computer starts up. It controls the boot the computer starts up. It controls the boot sequence and determines which partition the sequence and determines which partition the computer boots from. If this gets infected things computer boots from. If this gets infected things can go horribly wrong.can go horribly wrong.

Macro VirusMacro Virus

Macro viruses are written in a macro Macro viruses are written in a macro language which is built into a software language which is built into a software such as word processor. such as word processor.

This causes a sequence of actions to be This causes a sequence of actions to be performed automatically when the performed automatically when the application is started.application is started.

Macro viruses tend to be surprising but Macro viruses tend to be surprising but relatively harmless.relatively harmless.

Stats and Pictures About Viruses in General

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