Computer Viruses: A computer code capable of "breed by itself" that attach some or all of the code in a file or application, and result in your computer to do things you do not want.
Computer virus is a common disease in the world of modern technology. They can spread rapidly through a computer network such as the Internet open, and resulted in the loss of billions of dollars in a short time. Five years ago, the opportunity for the virus infected a 12-month period is 1 to 1000; Current ratio rose dramatically to about 1 in 10. The vital statistics of the virus:
- Virus-virus into your system via 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 copy of itself) in order to spread.
- Currently there are thousands of types of the virus, but only a few are found "in the wild" (wandering, undetected, in the network) because most of the known viruses birth of the laboratory, which is a variant of the virus "wild" which is widely available in the world.
- The impact caused the virus can range from annoying to devastating, but the simplest viruses have a tendency to damage due to a bug in the code of their computer (because the virus is very sloppy programmer or indeed have evil intentions).
- Antivirus software on the market today can detect almost all types of viruses that exist, but should be updated on a regular basis to maintain its effectiveness.
A virus is simply a computer program. As with other computer programs, in which there are instructions that can tell the computer to perform a particular 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 existing files in your computer-and sometimes to other people's computers as well.
If you are lucky, a virus most only cause the computer to perform acts weird, like causing your computer speakers reads "blip-blip-blip" at random. The most feared is a vicious virus that can cause all data on your hard drive is lost (by commanding the computer to format the hard drive), there is even a virus that can damage your computer hardware, such as the CIH virus that destroys your computer motherboard BIOS.
How Can Affected My Computer Virus?
Your computer can be infected with a virus when you copy a file that terinfeks into the computer, and then activate the code of his body when an infected file is executed or opened. Maybe you do not feel transcription infected files into your computer: Hey, the virus does not matter whether they are attached to the e-mail attachment, when you are downloading a file, or from a floppy disk that often borrowed-lent. And today, with increasing Internet users, the trend of the spread of the virus is through e-mail attachments.
When you open an infected file or application, malicious code copies itself to a file on your system, then wait to send it-whatever it is that designed the programmer to do on other people's computers. By simply removing the infected e-mail after you open the attached file it will not help, because the virus has penetrated into your computer system before.
A virus writer can set the time of virus attack, while it also, on a certain date or time, or when a specific command is executed, for example, when you are instructed to save or close a file. Example: Michaelangelo virus is programmed to release the code perusaknya every March 6, annually-which is the anniversary date
