Components and creation of a keylogger

[LucaBrassi]

I am very basic in the implementation and knowledge of hacking. However, I do have some experience with C++. Thus, i was curious on the creation of such software that includes, but not limited to, keyloggers. What are the components of it, what is the difficulty of creating a basic one, and is there available snippets that could help me analyze the specified pieces of the code? Any help would be appreciated.

[Kulverstukas]

There are no special "components", or "libraries" - how it should be called. Just standard ones. With them you can think how to make a "Keylogger". Making a virus is not that hard and it's nothing magic about it. It's a piece of software like anything else.
Start off by checking out "Keyboard hooking" for keylogging part.
If it was delphi you're at I could help

[Huntondoom]

a keylogger simply puts the keys you type into a string or what ever you want to store the keys (string is the easiest)
and after a certain amount of collected keys
like 25000 characters
it will save it into a file and uploads the file to somewhere else
or it will upload directly the data
also save when shutting down

and important:
it must start up when the Computer starts up
and it must be undetected

[Stackprotector]

mhm, there are ways to make it complicated, and ways to make it easy.
You can do it to c++, and bind to an specific desktop and get the keyboard buffer.