Mysterious dbboon folder with proxy.php file on my godaddy account

When doing some web maintenance today, I noticed a strange new folder on my GoDaddy hosting account at the root level named "dbboon", with a single file inside, called proxy.php. It's code is listed below, and seems to be some sort of proxy function.

I was kind of troubled because I didn't put it there. I googled all this to learn more, but didn't find anything, except for the proxy file happened to be also stored at pastebin.com: http://pastebin.com/PQsSPbCr

I called GoDaddy and they confirmed that it belonged to them, said it was put there by their advanced hosting group for testing purposes but didn't have any more information. I thought this was all really weird: why would they put something in my folder without giving me a heads-up, and why would they need to do something like this?

anybody know anything about this?

<?php



$version = '1.2';



if(isset($_GET['dbboon_version'])) {

echo '{"version":"' . $version . '"}';

exit;

}



function dbboon_parseHeaders($subject) {



global $version;



$subject = trim($subject);

$parsed = Array();

$len = strlen($subject);

$position = $field = 0;

$position = strpos($subject, "\r\n") + 2;



while(isset($subject[$position])) {



$nextC = strpos($subject, ':', $position);

$fieldName = substr($subject, $position, ($nextC-$position));

$position += strlen($fieldName) + 1;

$fieldValue = NULL;



while(1) {

  $nextCrlf = strpos($subject, "\r\n", $position - 1);

  if(FALSE === $nextCrlf) {

    $t = substr($subject, $position);

    $position = $len;

  } else {

    $t = substr($subject, $position, $nextCrlf-$position);

    $position += strlen($t) + 2;

  }



  $fieldValue .= $t;

  if(!isset($subject[$position]) || (' ' != $subject[$position] && "\t" !=    $subject[$position])) {

    break;

  }

}



$parsed[strtolower($fieldName)] = trim($fieldValue);

if($position > $len) {

  echo '{"result":false,"error":{"code":4,"message":"Communication error, unable to contact proxy service.","version":"' . $version . '"}}';

  exit;

}

}

return $parsed;

}



if(!function_exists('http_build_query')) {

function http_build_query($data, $prefix = '', $sep = '', $key = '') {

$ret = Array();

foreach((array) $data as $k => $v) {

  if(is_int($k) && NULL != $prefix) {

    $k = urlencode($prefix . $k);

  }

  if(!empty($key) || $key === 0) {

    $k = $key . '[' . urlencode($k) . ']';

  }

  if(is_array($v) || is_object($v)) {

    array_push($ret, http_build_query($v, '', $sep, $k));

  } else {

    array_push($ret, $k . '=' . urlencode($v));

  }

}

if(empty($sep)) {

  $sep = '&';

}

return implode($sep, $ret);

}

}



$host = 'dbexternalsubscriber.secureserver.net';

$get  = http_build_query($_GET);

$post = http_build_query($_POST);

$url = $get ? "?$get" : '';

$fp = fsockopen($host, 80, $errno, $errstr);



if($fp) {



$payload  = "POST /embed/$url HTTP/1.1\r\n";

$payload .= "Host: $host\r\n";

$payload .= "Content-Length: " . strlen($post) . "\r\n";

$payload .= "Content-Type: application/x-www-form-urlencoded\r\n";

$payload .= "Connection: Close\r\n\r\n";

$payload .= $post;



fwrite($fp, $payload);



$httpCode = NULL;

$response = NULL;

$timeout = time() + 15;



do {

while($line = fgets($fp)) {

  $response .= $line;

  if(!trim($line)) {

    break;

  }

}

} while($timeout > time() && NULL === $response);



$headers = dbboon_parseHeaders($response);

if(isset($headers['transfer-encoding']) && 'chunked' === $headers['transfer-encoding']) {

do {

  $cSize = $read = hexdec(trim(fgets($fp)));

  while($read > 0) {

    $buff = fread($fp, $read);

    $read -= strlen($buff);

    $response .= $buff;

  }

  $response .= fgets($fp);

} while($cSize > 0);

} else {

preg_match('/Content-Length:\s([0-9]+)\r\n/msi', $response, $match);

if(!isset($match[1])) {

  echo '{"result":false,"error":{"code":3,"message":"Communication error, unable to  contact proxy service.","version":"' . $version . '"}}';

  exit;

} else {

  while($match[1] > 0) {

    $buff = fread($fp, $match[1]);

    $match[1] -= strlen($buff);

    $response .= $buff;

  }

}

}



fclose($fp);



if(!$pos = strpos($response, "\r\n\r\n")) {

echo '{"result":false,"error":{"code":2,"message":"Communication error, unable to contact proxy service.","version":"' . $version . '"}}';

exit;

}



echo substr($response, $pos + 4);



} else {

echo '{"result":false,"error":{"code":1,"message":"Communication error, unable to  contact proxy service.","version":"' . $version . '"}}';

exit;

}

Source: Tips4all