Computer Virus

What Is a Computer Virus?
A computer Virus is a computer program or piece of code that is loaded onto your computer without your knowledge and runs against your wishes.

What are the signs of Computer infection?

Computer functions slower than normal and freezes often
Computer restarts itself
Uncommon error messages, distorted menus and dialog boxes appears.
Applications on you computer fail to work correctly.
Fail to print correctly.

What are the areas Viruses infect?

Disk Sectors
All sort of files
Directories (Clusters)
Batch files or NTLDR
Source code
Program language files
Screen Savers & theams
Creates garbage and consume memory and disk space

What is the Nature of Viruses?

Resident Viruses reside into memory of the computer and activate whenever the OS performs a specific function and infect files and other type of data. It finds a method to hide in the memory.
Non Resident virus is not stored in the memory and hard drive, but it is in executable file that infects a computer each time it runs. EXE files are an example of non resident virus.

What are the types of Viruses?

Boot Viruses
Program Viruses
Stealth Viruses
Polymorphic Viruses
Macro Viruses
Active X & Java controls Viruses
Tunneling Viruses
Network Viruses
Malware

Note: These were brief information about Computer Viruses. if any one is interested in more information regarding viruses or its types you can leave your comment here. i will try to provide all the info i have.

Computer Virus

Computer Virus

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