Keylogger program.

anshul said:

Hey guys I am trying to make my own keylogger program in C and think that it has 3 steps:>
1. Execute an endless loop which constantly recieves keytaps and saves them into a file.
2. Schedule it to start everytime system starts.
3. Make it run in the background and recieve kaytaps on any window or program.

The first step was easy and second can be done by putting it in autoexec.bat.
But How to Do the third step. ?

Can anyone Help??

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are you using windows hook procedure for this??
which compiler are you using??give us more details!!

3>you can run it in the background but it wil be displayed in the processes list.
use windows hook procedures to get the key strokes.and to hide the process
2>u can also use registry to start a program as well as start up folderwhen system starts.
using multiple ways is always better than relying on single way.

atb

isnt this illegal
reported

hullap said:

isnt this illegal
reported

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he is developing his own code...so why it is illegal....?

Tahts gr8 man .. let us knw once ur done .. it shdnt get detected in the processes or in the add remove programs.....

Why should it be illegal? Keyloggers are used for constructive purposes also, like in offices.

Keyloggers are not illegal. Learning to program one is probably the best way to learn windows hooking.

Now, you are way better off doing this stuff in windows c++. your "techniques" wont get you anywhere. If you dont know, learn it.

1. Execute an endless loop which constantly recieves keytaps and saves them into a file.

Click to expand...

This works, but there are better methods.

2. Schedule it to start everytime system starts.

Click to expand...

Okay, this is necessary, but you should hide it from task manager, etc.

3. Make it run in the background and recieve kaytaps on any window or program.

Click to expand...

Heh, you wont EVER get this done unless you learn c++. Enough said. There is something called GetAsyncKeyState which beginning keylogger programmers use.

I am using Bloodshed Dev C++.I don't konw about the hook algorithm can You post some useful link and I will try to improvise.

google "keyboard hook"

yes u can do 3 procedures and also GetAsyncKeyState can be used to trap keys (for beginners).
u can use windows.h file as header and then write down this code for hiding the window but task manager still shows it.
/*
HWND vanish;
AllocConsole();
vanish=FindWindowA("ConsoleWindowClass",'\0');
ShowWindow(vanish,0);
*/
this is the handle method.

He needs kernelmode drivers for a good keylogger. BTW this is ten months old...

Dont worry friends.........I am still listening....and always open to suggestions......

Where can we get a offline copy of the entire MS API reference..........
Because I am trying my hands on disassembly nowadays..........

Did you check here?
*msdn.microsoft.com/en-us/library/aa383749(VS.85).aspx
*blogs.msdn.com/windowssdk/archive/2008/02/21/how-to-find-api-references-alphabetically.aspx

@anshul

*www.carabez.com/downloads/win32api_big.zip

Very famous... Win32 API Programmer's Reference Guide

I'm interested in disassembly as well I've done a bit of cracking, but moved on to game hacking - imho one of the best uses of disassembly

Well I also plan to learn the same thing someday............but would also want to learn it as a important factor in career.

So I would highly appreciate it if you could send me some useful links and resources about disassembly and cracking.

^^
crackmes.de
tuts4you.com has lots of resources in disassembling and unpacking.
unpack.cn's english section.

extalia.com for game hacking
gamehacking.com
cheatengine.org/forum

3. Make it run in the background and recieve kaytaps on any window or program

Click to expand...

You should know how to make a TSR (Terminate and stay resident).

Long timeback it was written, but still it works
checkout this page
*www.codeguru.com/cpp/w-p/system/logging/article.php/c8709/