javascript 如何解码 JSFuck 脚本？

How to decode a JSfwor script?

提问by Szymon Marczak

I have this code in JavaScript:

我在 JavaScript 中有这个代码：

[(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+
(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+
(!![]+[])[+!+[]]]

In the console, it will return

在控制台中，它将返回

Array [ "filter" ]

And how can I decode a lot of text that's similar to the text above? E.g.:

以及如何解码大量与上述文本类似的文本？例如：

[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+
(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]][([][(![]+[])[+[]]+
([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+
(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+
(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+
(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+
([][[]]+[])[+!+[]]+(![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+
(!![]+[])[+!+[]]+([][[]]+[])[+[]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+
(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+
(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[][(![]+[])[+[]]+
([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+
(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+(!![]+[])[+!+[]]]

I want to see the plain script.

我想看纯脚本。

采纳答案by Madness

I have seen many decoding attempts around, but none that work reliably. The easiest way I have found to decode Non Alphanumeric Javascript is with Chrome.

我见过很多解码尝试，但没有一个能可靠地工作。我发现解码非字母数字 Javascript 的最简单方法是使用 Chrome。

Open Chrome > Go to jsfwor.com > paste the code you would like to decode in the window > hit Run This.

打开 Chrome > 转到 jsfwor.com > 在窗口中粘贴您想要解码的代码 > 点击 Run This。

Then open the Console, in the case of your specific code from PasteBinthere will be an error:

然后打开控制台，如果你的特定代码来自 PasteBin会有一个错误：

Uncaught TypeError: Cannot read property 'innerHTML' of null  

To the right of the error, click the line number link, and the code will be revealed. The result is:

在错误的右侧，单击行号链接，将显示代码。结果是：

(function(){
    window.false=document.getElementById('sc').innerHTML;
})

Which explains why you get the error trying to just decode it using JSfwor itself. There is no element with the id scon their site.

这解释了为什么您尝试使用 JSfwor 本身对其进行解码时会出现错误。sc他们的网站上没有带有 id 的元素。

回答by Tubekeeper

You can use this website to decode jsfwor: http://codertab.com/jsunfwor

你可以使用这个网站来解码jsfwor：http://codertab.com/jsunfwor

UPDATEDI extracted the decode javascript from the URL above, this is how the decode process work: (javascript)

更新我从上面的 URL 中提取了解码 javascript，这是解码过程的工作原理：（javascript）

s = source.slice(0, source.length - 2); txtResult = eval(s);

s = source.slice(0, source.length - 2); txtResult = eval(s);

Hope it help!

希望有帮助！

回答by Християн Христов

    let elem = yourJSfwor
function decode(elem) {
    return (/\n(.+)/.exec(eval(elem.replace(/\s+/, "").slice(0, -2)))[1]);
}

console.log(decode(elem))

This should work, the source is from this page

这应该有效，来源来自此页面