Reason:1
Why do people make these viruses and worms? What do they gain by sending worms and viruses?
Originally viruses were mostly the product of individuals who just wanted to cause trouble, make a name for themselves by breaking things, or who were trying to get some kind of revenge against someone else. They did it for "fun", for recognition among their peers, or "just because".
"... if your machine is infected with one of these viruses then you machine may very well be sending out massive amounts of spam ..."
Here's how that works:
- Someone creates a virus that does two things: propagates itself (more on that in a second) and installs well-hidden remote-control software on the machines it infects. A "zombie" machine or "bot machine" has just been created that can be controlled by the virus writer.
- Once enough zombies are created the virus-writer has an army of machines at his command - often referred to a botnet or zombie army. The virus writer is now a "bot herder" as he is able to control or "herd" that network of machines.
- He then sells the "services" of his network of zombies. Typically to spammers.
- The zombie network then starts sending out massive amounts of spam.
- The spammers make money because just enough people actually buy the stuff that spam is selling.
- The anti-virus companies eventually identify and block the virus that started all this.
- The virus writer writes a new virus, and the process starts all over again.
Reason:2
You know that the sad thing about life is there is always someone somewhere trying to ruin it for everyone else. These people who make these viruses, spywares and trojans aren't stupid people, actually they are quite smart but they have a burning desire to be jerks. You are right they are loosers
One might think of a computer virus as a tiny computer program designed to perform mischief. Most computer users have heard about computer viruses. A computer virus is the result of a destructive program that someone has written and placed inside a computer program, which unsuspecting people then place in their computer system.
Some viruses can erase all the information from the place where it's stored on the computer's hard disk. But each virus is different. Some display strange messages on your computer screen; others make small changes in your computer programs.
Where do these viruses come from? They certainly don't float around in the air like some human viruses. Instead, like any other computer program, a human must create them.
Why do people create them? It's hard to say. Some people create these programs out of meanness to get even. While others create them just as a challenge. Why do you thing people create these very destructive programs? How does your computer get a virus? Almost exactly the way humans do. The computer gets exposed to one. Well, its not quiet that easy.
Many people get contaminated computer programs by trading programs with other people. Others get contaminated computer programs through the use of modems, which allow computers to communicate over telephone lines (ie. The Internet)
Most of the time, programs that arrive by modem or a trade are perfectly safe to use. However, you do stand a chance of getting a program that has been tampered with. Here a computer program virus is hiding inside the normal program. Many computer programs that are traded were copied illegally.
When this program enters your computer through your input device, it hides in your computer's memory and starts to duplicate itself like a disease. When you save your data, you also save the virus. Slowly but surely, the virus crowds out your data and causes major system problems.
The virus can't affect the computer's ROM (Read Only Memory), but it can affect RAM (Random Access Memory) and your computer disks. When your shut off your computer a virus that has been picked up will be lost, just like any other memory that is held in RAM.
If the virus is on your disk or hard drive, it will return to the computer when you use the program again. If you switch from one program to another without shutting down the machine, the virus will attach itself to the new program. In this way, it can slowly infect all your programs before you know that it exists. Today millions of dollars are being spent to rid and protect computer systems from these virus programs.
Commercial and shareware programs have been created with the sole purpose of detecting and fixing suspect programs that might be viruses infected. These detection programs should be ran when any disk is put into your disk drive or every time your computer is first started up each day to scan the computer's hard drive.
Reason:3
there are different types of viruses.
keyloggers is a good example
they allow you to pretty much record EVERTHING the person types in.
this allows you to pretty much gain passwords to their bank accounts.... making you a lot of money.
some want revenge...... so they screw up the computer and its pretty much useless.... making people spend $
others yes, just want fun.......sadly....
and some just like to pretty much get people in trouble by controlling their computers...
and you can store crap on their pc's over the internet. allowing for you to not get in trouble (for whatever you put on there) and making THEM get in trouble instead.... just google it :)
keyloggers is a good example
they allow you to pretty much record EVERTHING the person types in.
this allows you to pretty much gain passwords to their bank accounts.... making you a lot of money.
some want revenge...... so they screw up the computer and its pretty much useless.... making people spend $
others yes, just want fun.......sadly....
and some just like to pretty much get people in trouble by controlling their computers...
and you can store crap on their pc's over the internet. allowing for you to not get in trouble (for whatever you put on there) and making THEM get in trouble instead.... just google it :)
