[The Alchemist]

These are tools which lets you get access into someone else's(victim's) computer through an open port of the victim's computer. Like in case of Prorat, all you need to do is to send a trojan to the victim, which will open your desired port. Then, as you get the IP address of the victim, you can get access to that person's computer. U can do almost anything(not physically) to the victim's computer using the rat. May even be formatting the victim's hard disk drive.
If u've watched the movie 'Troy' u'll understand it easily. The wooden horse gifted is the trojan in this case.

Enjoy......:dance:

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And for now atleast, dont worry about how to make one. First learn how to use them...