php newbie needs help

[sonicadam123]

Hey guys, i'm not just new here but i'm new to php..

 

I've been trying to edit some wordpress templates i was given, but there is some code in the footer/copyright files that i really don't understand at all ..

 

Here is an example of the code ...

 

<?php $_F=__FILE__;$_X='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';eval(base64_decode('JF9YPWJhc2U2NF9kZWNvZGUoJF9YKTskX1g9c3RydHIoJF9YLCcxMjM0NTZhb3VpZScsJ2FvdWllMTIzNDU2Jyk7JF9SPWVyZWdfcmVwbGFjZSgnX19GSUxFX18nLCInIi4kX0YuIiciLCRfWCk7ZXZhbCgkX1IpOyRfUj0wOyRfWD0wOw=='));?>

 

Could someone please explain if there is a way of decoding this??

 

Thanks so much

[Adam]

They've used a series of messy bas64_encode calls to encode the copyright notice.. to try and stop you removing it (at the cost of performance).

[sonicadam123]

Thanks, thats good to know!

 

but how would i go about decoding it?

[Adam]

Using base64_decode you can reverse engineer their efforts fairly easily, just may appear more complicated than it is (which was obviously their intention).

[PaulRyan]

I have given you a little head start

 

<?php

  // All of previous code broken down into managable strings
  $string1 = 'JF9YPWJhc2U2NF9kZWNvZGUoJF9YKTskX1g9c3RydHIoJF9YLCcxMjM0NTZhb3VpZScsJ2FvdWllMTIzNDU2Jyk7JF9SPWVyZWdfcmVwbGFjZSgnX19GSUxFX18nLCInIi4kX0YuIiciLCRfWCk7ZXZhbCgkX1IpOyRfUj0wOyRfWD0wOw==';
  $string2 = 'Pz4JCQkJCTxkNHYgNGQ9ImYyMnQ1ciI=';
  $string3 = 'DQoJCQkJCQkNCgkJCQkJCTxwIGNsMXNzPSJjMnB5cjRnaHQiPkMycHlyNGdodCAmYzJweTsgYTAwOCAtIDwxIGhyNWY9Imh0dHA6Ly8xc3MzcjFuYzVjMm1wbDVtNW50MTRyNXMxbnQ1LjJyZyIgdDR0bDU9ImQ1djRzIGMybXBsNW01bnQxNHI1IHMxbnQ1IGMybXAxcjF0NGYgMXNzM3IxbmM1IG0xbDFkNDUgbTN0MzVsbDUiPmQ1djRzIGMybXBsNW01bnQxNHI1IHMxbnQ1IGMybXAxcjF0NGYgMXNzM3IxbmM1IG0xbDFkNDUgbTN0MzVsbDU8LzE=';
  $string4 = 'PC9wPg0KCQkJCQkJDQoJCQkJCQk8cCBjbDFzcz0icDJ3NXI1ZCI=';
  $string5 = 'DQogICAgICAgICAgICAgICAgICAgICAgICA8MSBocjVmPSJodHRwOi8vczRtM2wxdDQybjFzczNyMW5jNXY0NS5jMm0iIHQ0dGw1PSJzNG0zbDF0NDJuIDFzczNyMW5jNSB2NDUgcjVuZDVtNW50IG0zbHQ0c3MzcDJydCB0MTN4IGMybXAxcjF0NGYiIGNsMXNzPSJ3MjJ0aDVtNXMiPiZuYnNwOzwvMT4NCiAgICAgICAgICAgICAgICAgICAgICAgIDwvcD4NCgkJCQkJDQoJCQkJCTwvZDR2PjwhLS0gRW5kIGYyMnQ1ciAtLT4=';

  // Only use this to fix string 2,3,4,5
  function fixString($string) {
    $string = strtr($string,'123456aouie','aouie123456');
    return $string;
  }

  // Only use this to fix string 1
  echo base64_decode($string1);

  // Only use this to fix string 2,3,4,5
  //echo fixString(base64_decode($string2));
?>

 

Tell me how you get on bud.

 

Regards, Paul.

[sonicadam123]

I have given you a little head start

 

<?php

  // All of previous code broken down into managable strings
  $string1 = 'JF9YPWJhc2U2NF9kZWNvZGUoJF9YKTskX1g9c3RydHIoJF9YLCcxMjM0NTZhb3VpZScsJ2FvdWllMTIzNDU2Jyk7JF9SPWVyZWdfcmVwbGFjZSgnX19GSUxFX18nLCInIi4kX0YuIiciLCRfWCk7ZXZhbCgkX1IpOyRfUj0wOyRfWD0wOw==';
  $string2 = 'Pz4JCQkJCTxkNHYgNGQ9ImYyMnQ1ciI=';
  $string3 = 'DQoJCQkJCQkNCgkJCQkJCTxwIGNsMXNzPSJjMnB5cjRnaHQiPkMycHlyNGdodCAmYzJweTsgYTAwOCAtIDwxIGhyNWY9Imh0dHA6Ly8xc3MzcjFuYzVjMm1wbDVtNW50MTRyNXMxbnQ1LjJyZyIgdDR0bDU9ImQ1djRzIGMybXBsNW01bnQxNHI1IHMxbnQ1IGMybXAxcjF0NGYgMXNzM3IxbmM1IG0xbDFkNDUgbTN0MzVsbDUiPmQ1djRzIGMybXBsNW01bnQxNHI1IHMxbnQ1IGMybXAxcjF0NGYgMXNzM3IxbmM1IG0xbDFkNDUgbTN0MzVsbDU8LzE=';
  $string4 = 'PC9wPg0KCQkJCQkJDQoJCQkJCQk8cCBjbDFzcz0icDJ3NXI1ZCI=';
  $string5 = 'DQogICAgICAgICAgICAgICAgICAgICAgICA8MSBocjVmPSJodHRwOi8vczRtM2wxdDQybjFzczNyMW5jNXY0NS5jMm0iIHQ0dGw1PSJzNG0zbDF0NDJuIDFzczNyMW5jNSB2NDUgcjVuZDVtNW50IG0zbHQ0c3MzcDJydCB0MTN4IGMybXAxcjF0NGYiIGNsMXNzPSJ3MjJ0aDVtNXMiPiZuYnNwOzwvMT4NCiAgICAgICAgICAgICAgICAgICAgICAgIDwvcD4NCgkJCQkJDQoJCQkJCTwvZDR2PjwhLS0gRW5kIGYyMnQ1ciAtLT4=';

  // Only use this to fix string 2,3,4,5
  function fixString($string) {
    $string = strtr($string,'123456aouie','aouie123456');
    return $string;
  }

  // Only use this to fix string 1
  echo base64_decode($string1);

  // Only use this to fix string 2,3,4,5
  //echo fixString(base64_decode($string2));
?>

 

Tell me how you get on bud.

 

Regards, Paul.

 

Thanks Paul, but even from your post i still have no idea where to go next, when i said i was new to php, i meant very very new lol