How Computer Viruses Work by Type

Posted on | April 21, 2009 | No Comments

Virus is a computer program that has the ability to destroy files or damage the computer system. The virus has various types of work and have a different, Following types of viruses and how to work each virus:

1. Files Virus
This virus has a job that is infection applications or documents that are in your computer.
When an infected application is executed, the virus will spread this way infected all files or documents that are accessed by the application.

2. Boot Sector Virus
I have this virus that is working hard infected boot sector (boot sector is a region in the first hard drive is accessed when the computer is turned on).
If the boot sector virus is active, users will not be able booting computer normally.

3. E-mail Virus
This virus has a job that is spread through e-mail (usually in the form of file attachments / attachment).
The virus has a characteristic form of a special extension. Scr,. Exe,. Pif, or. Bat.
When the virus is active, then he will submit himself to the various e-mail address listed in the user’s address book.

4. Multipartite Virus
This virus has a job that is infectedcomputer files at once on the hard disk boot sector.
This type of virus will cause many problems because of the damage caused fatal.

5. Virus Polimorfis
This virus has a unique way of working that this virus can change the code itself (change shape) when spread itself to other computers
Virus type more difficult to detect because it has such a nature ..

6. Virus invisible (stealth virus)
This virus has a job that he is able to Hide itself with how to create a file that seems infected file is not infected.

7. Macro virus
This virus has a job that is infected Microsoft Office applications, such as Word and Excel.
Documents are usually infected by a macro virus will modify the existing command in Microsoft Office such as the “Save” to spread itself when the command is executed.

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