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- #VIRUS MAKING CODES PDF HOW TO#
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A Trojan horse masquerades as a program with a cool-sounding name and description, enticing you to download it. Bulletin boards led to the precursor of the virus known as the Trojan horse. Games were extremely popular, and so were simple word processors, spreadsheets and other productivity software. People could dial up a bulletin board with a modem and download programs of all types. The second factor was the use of computer bulletin boards. By the late 1980s, PCs were in businesses, homes and college campuses.
#VIRUS MAKING CODES PDF PC#
Real computers were rare, and were locked away for use by "experts." During the '80s, real computers started to spread to businesses and homes because of the popularity of the IBM PC (released in 1982) and the Apple Macintosh (released in 1984). Prior to the 1980s, home computers were nearly non-existent. The first factor was the spread of personal computers (PCs). Traditional computer viruses were first widely seen in the late 1980s, and came about because of several factors. For this reason, the legal system continues to develop more rigorous penalties for people who create viruses. Even a silly message is real damage because someone has to waste time getting rid of it. Forcing a large company to waste thousands of hours cleaning up after a virus attack is real damage. Destroying everything on a person's hard disk is real damage. Of course, most virus creators seem to miss the point that they cause real damage to real people with their creations. Powerful viruses are valuable - and potentially lucrative - tools. Viruses can trick you into buying fake software, steal your personal information and use it to get to your money, or be sold on the digital equivalent of the black market. If you are a certain type of programmer who sees a security hole that could be exploited, you might simply be compelled to exploit the hole yourself before someone else beats you to it.Īnd then there's cold, hard cash. Sort of like Mount Everest - the mountain is there, so someone is compelled to climb it. The third reason involves bragging rights. Creating a virus is a little like that - it creates a virtual bomb inside a computer, and the more computers that get infected, the more "fun" the explosion. And that kid probably built bigger and bigger bombs until he either got bored or did some serious damage to himself.
#VIRUS MAKING CODES PDF HOW TO#
When you were growing up, there might have been a kid in your neighborhood who learned how to make gunpowder. Some people have a fascination with things like explosions and car wrecks. The second reason has to do with the thrill of watching things blow up. If that sort of person knows computer programming, then he or she may funnel energy into the creation of destructive viruses. Why would someone want to break a window on someone's car, paint signs on buildings or burn down a beautiful forest? For some people, that seems to be a thrill. The first is the same psychology that drives vandals and arsonists. A person also designs the virus's attack phase, whether it's a silly message or the destruction of a hard disk. A person has to write the code, test it to make sure it spreads properly and then release it. Obviously, the analogy between computer and biological viruses stretches things a bit, but there are enough similarities that the name sticks. Once a computer virus is running, it can infect other programs or documents. Similar to the way a biological virus must hitch a ride on a cell, a computer virus must piggyback on top of some other program or document in order to launch. In this article, we will discuss viruses - from "traditional" viruses to e-mail viruses and exploits that could target your mobile phone - so that you can learn how they work and understand how to protect yourself. It copies itself to the new machine using the security hole, and then starts replicating from there, as well. A copy of the worm scans the network for another machine that has a specific security hole.
#VIRUS MAKING CODES PDF SOFTWARE#
Worms: A worm is a small piece of software that uses computer networks and security holes to replicate itself.Trojan horses have no way to replicate automatically. The program claims to do one thing (it may claim to be a game) but instead does damage when you run it (it may erase your hard disk). Trojan horses: A Trojan horse is simply a computer program.Some e-mail viruses don't even require a double-click - they launch when you view the infected message in the preview pane of your e-mail software. E-mail viruses: An e-mail virus travels as an attachment to e-mail messages, and usually replicates itself by automatically mailing itself to dozens of people in the victim's e-mail address book.Each time the spreadsheet program runs, the virus runs, too, and it has the chance to reproduce (by attaching to other programs) or wreak havoc. For example, a virus might attach itself to a program such as a spreadsheet program. Viruses: A virus is a small piece of software that piggybacks on real programs.