hello, m wondering what are the other kinds of viruses i just know trojen horse and worm, so what are the others and what are the features of each one, well i know that the trojan hors is usually made and used for espionage and getting a confidantial information or for creating domages in the victim computer.

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If you go to any of the security company websites - McAfee, Symantec, Grisoft and so on - they have extensive databases of viruses and their actions and this should give you an idea of what each one does. Wikipedia will also have a page (or more) on viruses and their types.

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http://en.wikipedia.org/wiki/Computer_virus
http://www.oppapers.com/essays/Computer-Virusses/93620

I'm not saying that there are not other types of malicious code out there, like traditional viruses, but those are not really employed much these days compared to trojans, and scripts. I am sure there are still viruses out there that propagate the traditional way, like altering other EXEs and even modifying the bootsector and even going for the BIOS, but these days, the aim is not to totally damage the victim's computer, but rather make it a zombie, to carry out spam, and DDoS attacks, etc. Plain old viruses aren't really for that purpose.

I think there is some confusion however between trojan/spyware, and viruses. Both however can be considered 'malware.'

Hmmm.
I play games online sometimes--mostly just to check them out, and I have Blender and Python installed, because I wanted to learn more about 3D and graphics, and so I understand a little of what you're saying, with scripts, I think. With the game Combat Arms, you can buy all kinds of little cheats off the internet; some of these, like the AimBot, are just simple lines of code, right? I mean no one is actually decompiling the program and inserting new code: they're just altering the information before it's getting to its destination. Is that right?

What you are referring to are called 'addons', and depending on how complex they can be, it either can be a script depending on how the game is setup, to a an actual level addition. Sometimes games come with whats called level editors, and other utilities so that users can add their own content, but it doesn't alter the game code itself, it is just an extra file or something. Decompiling is usually done when someone needs to reverse-engineer something, and even after decompiling code, it is usually translated to assembly, and not the actual original code itself, (usually C++).

Plus, there are measures to prevent decompiling, usually resulting in rubbish, and sometimes not even any kind of assembly code.

Google is your friend buddy ... Explore away !


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