the kind of virus computer works

The virus is a computer program that has the ability to destroy files or damage a computer system. The virus has various types and how different too.
Here are the types of the virus and its way of working:

1. Virus Files
the virus can infect files that the application or document file that is in the computer. If an infected application is run, the virus will spread and can infect all files or documents accessed by the application.

2. Boot Sector Virus
This virus have the ability to infect hard disk boot sector (boot sector:: a room or area in the first hard drive and accessed when computer is turned on). If the virus is active, the computer will boot normally do not run.

3. E-mail Virus
viruses that have a characteristic shape file. exe,. scr,. bat, or. pif is spread through e-mail that normally form an attachment file. If the virus is active then the virus will spread by sending itself to a number of e-mail addresses contained in the user's mail address book.

4. Multipartite Virus
This virus can infect your computer files and boot sector on the hard drive that will cause many problems for causing potentially fatal damage.

5. Virus Polimorfis
This virus has a unique way of working that can change the code itself (changing form) as endemic to other computers
The virus type is more difficult to detect because it has such properties.

6. Stealth Virus (stealth virus)
This virus has a way of working that he was able to hide themselves by making an infected file as if the file is not infected.

7. Macro Virus
This virus has infected the workings of Microsoft Office applications like 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.