Javascript逆向与反逆向

<span style="font-size: 16px;">var a = typeof window === S[0] && typeof window[S[1]] !== S[2] ? window : global;<br/>    try {<br/>        a[S[3]](S[4]);<br/>        return function() {}<br/>        ;<br/>    } catch (a) {<br/>        try {<br/>            (function() {}<br/>            [S[11]](S[12])());<br/>            return function() {}<br/>            ;<br/>        } catch (a) {<br/>            if (/TypeError/[S[15]](a + S[16])) {<br/>                return function() {}<br/>                ;<br/>            }<br/>        }<br/>    }<br/></span>

<span style="font-size: 16px;">(function() {<br/>    (function a() {<br/>        try {<br/>            (function b(i) {<br/>                if (('' + (i / i)).length !== 1 || i % 20 === 0) {<br/>                    (function() {}<br/>                    ).constructor('debugger')();<br/>                } else {<br/>                    debugger ;<br/>                }<br/>                b(++i);<br/>            }<br/>            )(0);<br/>        } catch (e) {<br/>            setTimeout(a, 5000);<br/>        }<br/>    }<br/>    )()<br/>}<br/>)();<br/></span>

<span style="font-size: 16px;">window._setTimeout = window.setTimeout;<br/>window.setTimeout = function () {};<br/></span>

<span style="font-size: 16px;">window.console.clear = function() {};<br/>window.console._log = window.console.log;<br/>window.console.log = function (e) {<br/>    if (e['nodeName'] && e['nodeName'] == 'p') {<br/>        return ;<br/>    }<br/>    return window.console.error.apply(window.console._log, arguments);<br/>};<br/></span>

<span style="font-size: 16px;">var zBCa = function T(f) {<br/>    for (var U = 0, V = 0, W, X, Y = (X = decodeURI("+TR4W%17%7F@%17.....省略若干"),<br/>    W = '',<br/>    'D68Q4cYfvoqAveD2D8Kb0jTsQCf2uvgs'); U < X.length; U++,<br/>    V++) {<br/>        if (V === Y.length) {<br/>            V = 0;<br/>        }<br/>        W += String["fromCharCode"](X["charCodeAt"](U) ^ Y["charCodeAt"](V));<br/>    }<br/>    var S = W.split("&&");<br/></span>

<span style="font-size: 16px;">var a = window;<br/>a[S[0]][S[1]]();<br/>a[S[2]][S[3]]();<br/></span>

<span style="font-size: 16px;">a['RegExp']('/R[S]{4}p.cwn[D]{5}twr/','g')['test'](T + '')<br/></span>

<span style="font-size: 16px;">// Used to resolve the internal `[[Class]]` of values<br/>  var toString = Object.prototype.toString;<br/><br/>  // Used to resolve the decompiled source of functions<br/>  var fnToString = Function.prototype.toString;<br/><br/>  // Used to detect host constructors (Safari > 4; really typed array specific)<br/>  var reHostCtor = /^[object .+?Constructor]$/;<br/><br/>  // Compile a regexp using a common native method as a template.<br/>  // We chose `Object#toString` because there's a good chance it is not being mucked with.<br/>  var reNative = RegExp('^' +<br/>    // Coerce `Object#toString` to a string<br/>    String(toString)<br/>    // Escape any special regexp characters<br/>    .replace(/[.*+?^${}()|[]/\]/g, '\$&')<br/>    // Replace mentions of `toString` with `.*?` to keep the template generic.<br/>    // Replace thing like `for ...` to support environments like Rhino which add extra info<br/>    // such as method arity.<br/>    .replace(/toString|(function).*?(?=\()| for .+?(?=\])/g, '$1.*?') + '$'<br/>  );<br/><br/>  function isNative(value) {<br/>    var type = typeof value;<br/>    return type == 'function'<br/>      // Use `Function#toString` to bypass the value's own `toString` method<br/>      // and avoid being faked out.<br/>      ? reNative.test(fnToString.call(value))<br/>      // Fallback to a host object check because some environments will represent<br/>      // things like typed arrays as DOM methods which may not conform to the<br/>      // normal native pattern.<br/>      : (value && type == 'object' && reHostCtor.test(toString.call(value))) || false;<br/>  }<br/></span>

<span style="font-size: 16px;">function wrapit(e) {<br/>    if (e.__proto__) {<br/>        wrapit(e.__proto__);<br/>    }<br/>    for (var a in e) {<br/>        try {<br/>            e[a];<br/>        } catch (e) {<br/>            // pass<br/>            continue;<br/>        }<br/>        var prop = e[a];<br/>        if (!prop || prop._w) continue;<br/><br/>        prop = e[a];<br/>        if (typeof prop == 'function' && isNative(prop)) {<br/>            e[a] = (function (name, func) {<br/>                return function () {<br/>                    var args = [].splice.call(arguments,0); // convert arguments to array<br/>                    if (false && name == 'getElementsByTagName' && args[0] == 'iframe') {<br/>                    } else {<br/>                        console.error((new Date).toISOString(), [this], name, args);<br/>                    }<br/>                    if (name == 'querySelectorAll') {<br/>                        //alert('querySelectorAll');<br/>                    }<br/>                    return func.apply(this, args);<br/>                };<br/>            })(a, prop);<br/>            e[a]._w = true;<br/>        };<br/>    }<br/>}<br/></span>

<span style="font-size: 16px;">wrapit(window);<br/>wrapit(document);<br/></span>