Computer Viruses

A computer virus is an illegal and potentially prejudicial computer plan designed to infect other softw nuclear number 18 by attaching itself to any packet it contacts. In many cases, virus curriculums ar designed to damage computer systems maliciously by destroying or corrupting data. If the septic software is transferred to or accessed by other computer system, the virus spreads to the other system. Viruses experience become a serious problem in recent years, and currently, thousands of known virus architectural plans exist (Reed 85-102). Three types of viruses are a efflorescence vault of heaven viruses, file virus, and trojan horse horse virus. A boot arena virus infects the boot program used to start the system. When the infect boot program executes, the virus is loaded into the computers storehouse. Once a virus is in memory, it nates spread to any floppy record disk inserted into the computer. A file virus inserts virus economy into program files. The viru s then spreads to any program that accesses the infected file. A Trojan horse virus (named after the classic myth) hides in spite of appearance or is designed to look uniform a rightful(a) program. close to viruses interrupt processing by freeze a computer system temporarily and then displaying sounds or messages. other viruses contain measure bombs or logic bombs. A time bomb is a program that performs an activity on a particular date. A logic bomb is a program that performs an activity when a certain action occurs, much(prenominal) as an employee world terminated. A worm, which is similar to a virus, copies itself repeatedly until no memory or disk space remains. To witness computer viruses, antivirus programs construct been developed. Besides the detecting of the viruses, antivirus programs also have utilities to remove or repair infected programs or files. Some damaged files cannot be repaired and must be replaced with uninfected reinforcement files. The...

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