Computer Viruses of Today

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LOMONOSOV MOSCOW STATE UNIVERSITY

Research paper for the Course of English

Computer viruses of today

Student:
Submission date:
Instructor:

The Faculty of Computational Mathematics and Cybernetics

The English Department

Moscow 2010
CONTENTS
INTRODUCTION3
1 Essence of computer viruses4
2 TYPES OF VIRUSES.6
3 Antivirus software 11 CONCLUSION 13 References 14

Introduction
For last decades the technology of the software has strongly changed. In this time, the software has made very much to help mankind, and now we use various software every day of our life. Some people may say they’re completely dependent on it. Every year, every month, new software comes with new ways to aid us, so in any time if a new need arises, we can count on new software being released for that specific purpose. While the software is created to make our daily life and career easier, there also exits software, which sole purpose is to do harm and hinder the daily routine of ordinary users. Such programs are commonly referred to as viruses. Malicious programmers write computer viruses for various reasons. Some of virus-makers do it just for fun, others write viruses for personal gain, many do it for fame. Computer viruses are a big problem not only for those people who works with computers, but also for those people who depends on the companies which use computers as well. A well-written malicious virus could halt production in companies. It could also make the stock market crashing in the course of an hour, or could make to make millions of innocent internet users be helpless as their Internet providers struggle with intensive system overloads from cleverly created viruses. Now in information press appears a lot of various reports about the emergence of new species of viral infection. But usually, there is an advertizing of means of active and passive struggle against viruses, and there are recommendations about measures of protection also are resulted near to such reports. Spreading of computer viruses has got such scales that, probably, each user though time in life has faced one of viruses on the computer. Nowadays the quantity of viruses (together with all their updates) in the Internet is estimated in thousands and every day this quantity grows. It is impossible to count exact quantity of known viruses, because tens and hundreds of new viruses every day are created. Fighters with viruses follow their developers. The market of anti-virus programs comes out on top now on number of sold copies of programs. For this reason many firms began to include anti-virus protection frames in their programs or operating systems. In this paper some of the questions connected with computer viruses and methods of struggle against them will be considered. 1 Essence of computer viruses

Mass application of personal computers, unfortunately, has appeared connected with occurrence of the self-reproducing programs-viruses interfering normal work of the computer, disks, destroying file structure and causing a damage of information stored in computer. Having got into one computer, the computer virus is capable to extend of other computers. A computer virus is an illegal and potentially damaging computer program designed to infect other software by attaching itself to any software it contacts. In many cases, virus programs are designed to damage computer systems maliciously by destroying or corrupting data. If the infected software is transferred to or accessed by another computer system, the virus spreads to the other system. The reasons of occurrence and distribution of computer viruses, on the one hand, hidden in psychology of the human person and its shady sides, on the other hand, are caused by absence of hardware of protection of operating system of the personal computer. Despite the laws passed in...
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