Type of Computer Viruses

10 Types of Computer Viruses

Nowadays computers are used a lot, and if you use the computer, you must have heard the name of a virus. This name is very popular in the world of the Internet.


If a virus goes inside our computer or other electronic gadgets, it can spoil it and also destroy its data, which is very dangerous for our computer.


In our previous article, we discussed computer viruses in detail. If you are interested then check it out and also check out our phishing and hacking series.


There's various type of virus which effect system in their style so we should know their types and risk factors.

1. Boot Sector Virus

2. Encrypted Virus

3. Stealth Virus

4. Multipartite Virus

5. Tunneling Virus

6. Polymorphic Virus

7. Armored Virus

8. Source Code Virus

9. File Virus

10. Macro Virus



Boot Sector Virus

This virus infects the boot sector which means whenever you boot the computer this virus will execute before the operating system is fully loaded. It infects other bootable media such as floppy disks. These are also known as memory viruses because they do not infect the file system.


Encrypted Virus

This virus remains encrypted so the antivirus fails to detect and contains the decrypted code which makes it executable when the antivirus is busy scanning other files.


Stealth Virus

This virus changes its code to avoid detection by the antivirus, so whenever the antivirus does a scan it becomes difficult to catch it, it will hide/modify the infected part of the code.


Multipartite Virus

This type of virus is capable of infecting many parts of the system, including the boot sector, memory, and files. This makes it difficult to detect and incorporate.


Tunneling Virus

This type of virus tries to bypass detection by the antivirus by installing itself in the interrupt handler chain. Interception programs, which reside in the background of an operating system and catch viruses, are disabled during tunneling viruses. Similar viruses install themselves in device drivers.


Polymorphic Virus

This type of virus changes its virus signature pattern to avoid detection by antivirus so every time you boot the system this virus changes its signature pattern but performs the same function.


Armored Virus

This type of virus protects itself from antivirus programs, making it more difficult to trace by spoofing its location in the system.


Source Code Virus

This type of virus seeks out the source code and modifies it to contain the virus and help it spread.


File Virus

This type of virus infects executable files to cause permanent damage or render them unusable. It overwrites the code or inserts infected code into an executable file.


Macro Virus

This type of virus is written in the same macro language used for software programs, including Excel or Word. When a macro virus infects a software application, it causes the application to start a sequence of actions automatically when it is opened.


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