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Full disclosure |
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IT Security and Insecurity Portal |
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Please help decode this base64 code |
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 Posted: Tue Nov 13, 2012 11:43 pm |
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| bxfame |
| Regular user |
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| Joined: Nov 14, 2012 |
| Posts: 9 |
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I've seen some of the work you guys do here and it's amazing stuff. However, I've been trying to decode this code to remove a backlink footer from my website but I can't figure out how. I'm using joomla and found this code on eris.php and index.php. If I delete the code, it removes all formatting on the website.
| Code: | $keystroke1 = base64_decode("d2RyMTU5c3E0YXllejd4Y2duZl90djhubHVrNmpoYmlvMzJtcA==");
eval(gzinflate(base64_decode('hY7NCoJAFIVf5SQu5tIUzVpc9hxSeq0huwPzA4X47ikxEm7anu/82V7t+iRttE4aftkQgyq8iyyt67ggGjPFqqoyRG/lpsvL0yWJhBHlg9+oEdJ1ZqsBJw1DFWyvZmVgyYTq2iwxzzF5QXv3yvlOLS2EPXJxhQk8BP7vxHH5d/7+274wGpv5gyH9uzJNHw==')));
$O0O0O0O0O0O0=$keystroke1[2].$keystroke1[32].$keystroke1[20].$keystroke1[11].$keystroke1[23].$keystroke1[15].$keystroke1[32].$keystroke1[1].$keystroke1[11];
$keystroke2 = $O0O0O0O0O0O0("xes26:tr5bzf{8ydhog`uw9omvl7kicjp43nq", -1);
$OO000OO000OO=$keystroke2[16].$keystroke2[12].$keystroke2[31].$keystroke2[23].$keystroke2[18].$keystroke2[24].$keystroke2[9].$keystroke2[20].$keystroke2[11];
$O0000000000O=$keystroke1[30].$keystroke1[9].$keystroke1[6].$keystroke1[11].$keystroke1[27].$keystroke1[8].$keystroke1[19].$keystroke1[1].$keystroke1[11].$keystroke1[15].$keystroke1[32].$keystroke1[1].$keystroke1[11];
eval($OO000OO000OO(base64_decode('LZK5sq
NGAAB/xlW7WwSAEFe5HIhrQNwaAYLEhWaQuO/76/
0CJ512B52taf37L9elKOp//H6nU8Zd/8UZ6nD2+5
eFFmYaZnC7KX5L6nbGoO6QFSBsnTqq31GVzF14yN
FdN8HII8vhEJ8ay5thxESrVJ8kbb6IPqr9ESvTpU
7RW15N2g6OfBSDnbs7DxfkzYZy0IvyApJE0u5W9r
teGC5Y7IccLt9U8ECx5aFIEcGF8BPOUpQpkmGv+v
PY0r1tM7rQpOa4tMUHIUmTLNURLsCmBeg3YS82hQ
qdoN9IJF0+HozcOKYssbJh7tw3ugZzs2ByFhpFcw
mz+npErvJXr7PqdJ8gv0ecduVLHksnDCm1T5L05v
THoI8daJtU39/zdi1Lls5MCpdwc3yy24Fb2N4U03
T5iV/0bYOsrm7agE1e9hAampGyZWxqvJyUL7Q0Xk
Pasoqzj3PH5QszlgXW2hsg/1PjCnlx5chHuzJ92C
qWd4WneeyLRPdbDvjYXo67Eb1g6deYo6KMn8e46y
V9NZBI9kXaVnH/DZ+sHuD7NC1Mwo4zvZEZYwsXZI
wNhyJl0Ju54hGVbaFKMEpEBzzDOU6iN6/9+U0Xf/
+GWlQ6nPjyLwMPCT2w8aPq64BVE4Wdt7kbi5Upkz
pjqDzdZfQt27AhBNbeCa6qkNDBJpqDU9VEv9fSEC
2j15HF0YGU3z+ynK3a1u84K61snatQn6+kFSJS+6
JonruHsyudYYv1LD7BjcizNZvGu36FPxrZ/KCxIr
H1pEkE4TL7BOxjTZ9sCujUMz6apVbTekQls5m6x3
PXvafRR89oFDU5xwY2a1zZvi3S11qpghaZdfa+LC
rmZR++u9dLrswefD38TniTzgnJVb7JQDUOr9UANB
eqYTf8XuZuChZtvz9zePFWAYzoJmUzfl4ghms7PL
ppl1besg2w9hsbuGlruIf3eMeAdt/6kOZJG29E+Q
xicRPFNYRrFjfhZzrOljqwtnYf2QusPJqJBNShcD
qCPjIuFrKbYUTb4T/YAt0Z4NAqODWSg1n9M80jha
fjPRgsn19x0x2BuyGyP/BJkl5LC6R3irzwz68/f/
78/R8='))); |
If anyone can crack it, would be greatly appreciated! |
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| Posted: Wed Nov 14, 2012 12:00 am |
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| demon |
| Moderator |
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| Joined: Sep 22, 2010 |
| Posts: 485 |
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| Code: | <?php
function display_author_link()
{
echo '<div class="author_link"><div class="rt-container"><a href="http://www.hogash.com/" target="_blank" title="Premium Joomla Templates">Premium Joomla Templates</a> by Hogash</div></div>';
}
display_author_link();
?> |
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_________________
Go BIG or go HOME ! |
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| Posted: Wed Nov 14, 2012 8:28 pm |
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| bxfame |
| Regular user |
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| Joined: Nov 14, 2012 |
| Posts: 9 |
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| Posted: Wed Nov 14, 2012 9:13 pm |
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| demon |
| Moderator |
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| Joined: Sep 22, 2010 |
| Posts: 485 |
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why don't you just edit the footer, i mean this
| Code: | | <div class="author_link"><div class="rt-container"><a href="http://www.hogash.com/" target="_blank" title="Premium Joomla Templates">Premium Joomla Templates</a> by Hogash</div></div> |
to your website footer ? or just remove these 2 classes from the .css:
author_link and rt-container ? |
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_________________
Go BIG or go HOME ! |
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| Posted: Wed Nov 14, 2012 10:25 pm |
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| bxfame |
| Regular user |
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| Joined: Nov 14, 2012 |
| Posts: 9 |
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If I edit the original base64 code into the decoded version, it breaks the whole template.
I also tried deleting anything with author_link and rt-container in the template.css but all it did was change the format of the text (link color and text size). |
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| Posted: Wed Nov 14, 2012 11:07 pm |
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| demon |
| Moderator |
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| Joined: Sep 22, 2010 |
| Posts: 485 |
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how you edited it, with the php tags or without ?
if you edited with the php tags, then it's normally so try without them 
| Code: | function display_author_link()
{
echo '<div class="author_link"><div class="rt-container"><a href="http://www.hogash.com/" target="_blank" title="Premium Joomla Templates">Premium Joomla Templates</a> by Hogash</div></div>';
}
display_author_link(); |
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_________________
Go BIG or go HOME ! |
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| Posted: Thu Nov 15, 2012 7:40 pm |
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| bxfame |
| Regular user |
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| Joined: Nov 14, 2012 |
| Posts: 9 |
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I've tried replacing the code in eris.php and index.php with AND without the tags and neither worked.
I'm starting to feel this code is hard-coded and impossible to erase.  |
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| Posted: Thu Nov 15, 2012 8:08 pm |
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| demon |
| Moderator |
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| Joined: Sep 22, 2010 |
| Posts: 485 |
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| Can you upload these 2 files and post link ? I'll try to fix your problem |
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_________________
Go BIG or go HOME ! |
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| Posted: Thu Nov 15, 2012 8:35 pm |
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| bxfame |
| Regular user |
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| Joined: Nov 14, 2012 |
| Posts: 9 |
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I posted a link above containing all the files (if there are more files affecting this) but here are the two main files directly:
index.php
eris.php |
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| Posted: Thu Nov 15, 2012 9:12 pm |
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| demon |
| Moderator |
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| Joined: Sep 22, 2010 |
| Posts: 485 |
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Ok, try this:
remove the code below from index.php and reload the page to see if it make problems again
| Code: | <?php /** Begin Copyright **/ if ($gantry->countModules('copyright')) : ?>
<div id="rt-copyright">
<div class="rt-container">
<?php echo $gantry->displayModules('copyright','standard','standard'); ?>
<div class="clear"></div>
</div>
</div>
<?php /** End Copyright **/ endif; ?>
<?php
require_once('eris.php');
?> |
If it loads normally you can delete eris.php |
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_________________
Go BIG or go HOME ! |
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| Posted: Thu Nov 15, 2012 10:12 pm |
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| bxfame |
| Regular user |
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| Joined: Nov 14, 2012 |
| Posts: 9 |
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I tried deleting just that code and broke the website again. Here's a screenshot of what it displayed:
http://imgur.com/90BvA |
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| Posted: Thu Nov 15, 2012 10:14 pm |
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| demon |
| Moderator |
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| Joined: Sep 22, 2010 |
| Posts: 485 |
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Ok, try to remove just this one:
| Code: | <?php
require_once('eris.php');
?> |
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_________________
Go BIG or go HOME ! |
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| Posted: Thu Nov 15, 2012 10:17 pm |
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| bxfame |
| Regular user |
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| Joined: Nov 14, 2012 |
| Posts: 9 |
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| Posted: Thu Nov 15, 2012 10:20 pm |
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| bxfame |
| Regular user |
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| Joined: Nov 14, 2012 |
| Posts: 9 |
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| Posted: Thu Nov 15, 2012 10:34 pm |
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| demon |
| Moderator |
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| Joined: Sep 22, 2010 |
| Posts: 485 |
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Ok, this is the obfuscated code in index.php
| Code: | <?php
if(!function_exists("display_author_link")) {
die('This theme is released under creative commons license. The link in the footer should remain intact!');
}
$gantry->finalize();
?> |
so just remove
| Code: | <?php
require_once('eris.php');
?> |
and then replace the obfuscated code in the bottom of index.php
with this one:
| Code: | <?php
$gantry->finalize();
?> |
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_________________
Go BIG or go HOME ! |
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