Virus Protection
Posted On June 04, 2008 at at 6:53 PM by kullu
What is computer virus?
Cyberworld's dark side : Worms, Viruses & Trojans. A computer virus is a type of program designed to spread itself by first infecting executable files or system areas of hard and floppy disks and then making copies of itself. It behaves in a way similar to a biological virus, which spreads by inserting itself into living cells. Extending the analogy, the insertion of a virus into the program is termed as an infection, and the infected file or the executable code that is not part of a file is called a host. Viruses are one of the several types of malicious software or malware, which includes worms includes worms and Trojan horses.
What kinds of files can spread viruses?
Viruses have the potential to infect any type of executable code, not just the files that are commonly called 'program files'. For example, some viruses infect executable code in the system area of hard drives. Another type of virus, known as a 'macro virus' can infect word processing and spreadsheet documents that use macros. And it's possible for HTML documents containing javascript or other types of executable code to spread viruses. Since virus code must be executed to have any effect, files the computer treats as pure data are safe. This includes graphics and sound files such as those with the extension gif, jpg, mp3,etc as well as plain text in txt. files. For example, just viewing picture files won't infect your computer with a virus. The virus code has to be in a form, such as an exeprogram file or a doc file that the computer will actually try to execute.
For a complete protection, install Anti-Virus software, AVG Anti-Virus ,spybot ZoneAlarm Firewall are highly recommended programs. Go for the free Edition.
For a complete protection, install Anti-Virus software, AVG Anti-Virus ,spybot ZoneAlarm Firewall are highly recommended programs. Go for the free Edition.
