How Computer Viruses Work

Posted by Nunik PW on 18.37 in BERITA TERKINI, ENGLISH VERSION, PC DAN LAPTOP, TIPS DAN TRIK, VIRUS, WINDOWS 7 DAN 8, WINDOWS XP,

Computer virus: A computer code that can "multiply by itself" that attach some or all of the code in the file or application, and result in your computer do things you do not want.
Computer viruses are common diseases in the world of modern technology. They can spread quickly through an open computer network such as the Internet, and the resulting loss of up to billions of dollars in a short time. Five years ago, the opportunity for the virus infected a 12-month period is about 1 in 1000; present ratio rose dramatically to about 1 in 10. Vital statistics of the virus:
• The viruses get into your system through e-mail, downloads, infected floppy disk, or (sometimes) by hacking.
• From the definition, a virus must be able to "own culture" (aka make a clone or a copy of itself) to be spread.
• Currently there are thousands of types of viruses, but only a few are found "in the wild" (wandering, undetected, in the network) because most of the known viruses was born from the lab, which is a variant of the virus "wild" which is widely available in world.
• The impact caused the virus range from the annoying to highly destructive, but even the simplest virus has a tendency to damage due to a bug in the code of their computer (because the virus is very sloppy programmer or did have malicious intent).
• Antivirus software on the market today can detect almost all types of viruses exist, but should be updated regularly to maintain effectiveness.
A virus is a computer program. As with other computer programs, in which there are instructions to tell the computer to perform a specific task. But in contrast to the application program, a computer virus usually instruct you to do things you really do not want, and usually can spread itself to files that exist on your computer - and sometimes into other people's computers.
If you're lucky, a virus most only cause the computer to act weird, like causing your computer speakers sound "blip-blip-blip" at random. The most feared is a virulent virus which can cause all data on your hard drive is lost (by commanding the computer to format a hard drive), and some viruses that can damage your computer hardware, such as the CIH virus damage your computer motherboard BIOS.