computer virus and types of virus pdf

Computer Virus And Types Of Virus Pdf

By Lisa K.
On Wednesday, April 21, 2021 5:52:10 AM

File Name: computer virus and types of virus .zip
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Published: 21.04.2021

The purpose of this paper is to discuss various types of computer viruses, along with their characteristics, working, effects on the computer systems and to suggest measures for detecting the virus infection in a computer system and to elaborate means of prevention. The author undertook an extensive study and review of the literature available online and on relevant web sites on the present topic. A large number of viruses were found during the study, which are causing serious damages to computer systems.

9 types of malware and how to recognize them

People tend to play fast and loose with security terminology. However, it's important to get your malware classifications straight because knowing how various types of malware spread is vital to containing and removing them. This concise malware bestiary will help you get your malware terms right when you hang out with geeks. A computer virus is what most of the media and regular end-users call every malware program reported in the news. Fortunately, most malware programs aren't viruses.

A computer virus [1] is a type of computer program that, when executed, replicates itself by modifying other computer programs and inserting its own code. Computer viruses generally require a host program. When the program runs, the written virus program is executed first, causing infection and damage. A computer worm does not need a host program, as it is an independent program or code chunk. Therefore, it is not restricted by the host program , but can run independently and actively carry out attacks. Computer viruses cause billions of dollars' worth of economic damage each year.

What is a Computer Virus and its Types

A computer virus is a malicious piece of computer code designed to spread from device to device. A subset of malware, these self-copying threats are usually designed to damage a device or steal data. Think of a biological virus — the kind that makes you sick. A computer virus is very similar. Designed to replicate relentlessly, computer viruses infect your programs and files, alter the way your computer operates or stop it from working altogether. Some computer viruses are programmed to harm your computer by damaging programs, deleting files, or reformatting the hard drive. Others simply replicate themselves or flood a network with traffic, making it impossible to perform any internet activity.

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Computer virus

A computer virus is a malicious program that self-replicates by copying itself to another program. In other words, the computer virus spreads by itself into other executable code or documents. The purpose of creating a computer virus is to infect vulnerable systems, gain admin control and steal user sensitive data. Hackers design computer viruses with malicious intent and prey on online users by tricking them. One of the ideal methods by which viruses spread is through emails — opening the attachment in the email, visiting an infected website, clicking on an executable file, or viewing an infected advertisement can cause the virus to spread to your system.

Computer virus

A Brief History of Computer Viruses & What the Future Holds

When it comes to cybersecurity, there are few terms with more name recognition than "computer viruses. What follows is a brief history of the computer virus, and what the future holds for this widespread cyber threat. What is a computer virus? This idea was first discussed in a series of lectures by mathematician John von Neumann in the late s and a paper published in , Theory of Self-Reproducing Automata. The paper was effectively a thought experiment that speculated that it would be possible for a "mechanical" organism—such as a piece of computer code—to damage machines, copy itself and infect new hosts, just like a biological virus.

Внимательный и заботливый, умный, с прекрасным чувством юмора и, самое главное, искренне интересующийся тем, что она делает. Чем бы они ни занимались - посещали Смитсоновский институт, совершали велосипедную прогулку или готовили спагетти у нее на кухне, - Дэвид всегда вникал во все детали. Сьюзан отвечала на те вопросы, на которые могла ответить, и постепенно у Дэвида сложилось общее представление об Агентстве национальной безопасности - за исключением, разумеется, секретных сторон деятельности этого учреждения. Основанное президентом Трумэном в 12 часов 01 минуту 4 ноября 1952 года, АНБ на протяжении почти пятидесяти лет оставалось самым засекреченным разведывательным ведомством во всем мире. Семистраничная доктрина сжато излагала программу его работы: защищать системы связи американского правительства и перехватывать сообщения зарубежных государств. На крыше главного служебного здания АНБ вырос лес из более чем пятисот антенн, среди которых были две большие антенны, закрытые обтекателями, похожими на громадные мячи для гольфа. Само здание также было гигантских размеров - его площадь составляла более двух миллионов квадратных футов, вдвое больше площади штаб-квартиры ЦРУ.

 - Беккер запнулся.  - Но тут… тут слишком. Мне нужны только деньги на такси.  - Он прикинул в уме, сколько в этой пачке в пересчете на доллары.  - Да тут несколько тысяч долларов. - Я действую по инструкции, сэр.


A trojan horse may have functions of use to the user. Some definitions of “trojan horse” define a com- puter virus as a replicating trojan horse which in- serts a copy of itself into some other program [1]. Boot Sector Infectors: Only discussed in the context of a PC-compatible system.


Она в ужасе смотрела, как он придавливает ее к полу, стараясь разобрать выражение его глаз. Похоже, в них угадывался страх. Или это ненависть. Они буквально пожирали ее тело. Новая волна паники охватила Сьюзан.

Клубы дыма начали вытекать из треснувших оконных рам. Сьюзан в отчаянии колотила в дверную панель, но все было бесполезно.

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