PHP deobfuscation, decryption, reconstruction tool

De-obfuscate PHP malware/viruses and tampering code on Wordpress to original readable code.

*Please note that not all obfuscation codes can be decoded.

Decoded the code below.

<?php> (function(){ var west=+((+!+[])+(+!+[]+!![]+!![]+!![]+[])+(+!+[]+!![]+!![])+(+!+[]+!![]+!![]+!![]+[])+(+![])+(+!+[]+!![]+!![]+[])+(+!+[]+!![]+!![]+!![]+!![]+!![]+!![])+(+!+[]+!![]+[])), east=+((+!+[])+(+!+[]+!![]+[])+(+!+[]+!![]+!![])+(+!+[]+[])+(+!+[]+!![]+!![]+!![]+!![]+!![]+!![])+(+!...

Obfuscated php code

<?php>
(function(){
    var west=+((+!+[])+(+!+[]+!![]+!![]+!![]+[])+(+!+[]+!![]+!![])+(+!+[]+!![]+!![]+!![]+[])+(+![])+(+!+[]+!![]+!![]+[])+(+!+[]+!![]+!![]+!![]+!![]+!![]+!![])+(+!+[]+!![]+[])),
        east=+((+!+[])+(+!+[]+!![]+[])+(+!+[]+!![]+!![])+(+!+[]+[])+(+!+[]+!![]+!![]+!![]+!![]+!![]+!![])+(+![]+[])+(+!+[]+!![]+!![]+!![]+!![]+!![]+!![]+!![])+(+![]+[])),
        x=function(){try{return !!window.addEventListener;}catch(e){return !!0;} },
        y=function(y,z){x() ? document.addEventListener("DOMContentLoaded",y,z) : document.attachEvent("onreadystatechange",y);};
    y(function(){
        document.getElementById('wsidchk').value = west + east;
        document.getElementById('wsidchk-form').submit();
    }, false);
})();
</php>

Decoded(de-Obfuscated) php code

<?php>
(function(){
    var west=+((+!+[])+(+!+[]+!![]+!![]+!![]+[])+(+!+[]+!![]+!![])+(+!+[]+!![]+!![]+!![]+[])+(+![])+(+!+[]+!![]+!![]+[])+(+!+[]+!![]+!![]+!![]+!![]+!![]+!![])+(+!+[]+!![]+[])),
        east=+((+!+[])+(+!+[]+!![]+[])+(+!+[]+!![]+!![])+(+!+[]+[])+(+!+[]+!![]+!![]+!![]+!![]+!![]+!![])+(+![]+[])+(+!+[]+!![]+!![]+!![]+!![]+!![]+!![]+!![])+(+![]+[])),
        x=function(){try{return !!window.addEventListener;}catch(e){return !!0;} },
        y=function(y,z){x() ? document.addEventListener("DOMContentLoaded",y,z) : document.attachEvent("onreadystatechange",y);};
    y(function(){
        document.getElementById('wsidchk').value = west + east;
        document.getElementById('wsidchk-form').submit();
    }, false);
})();
</php>

Malware detection & removal plugin for WordPress