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  • js反混淆

    var esprima = require('esprima')
    var escodegen = require('escodegen')
    content = "function _0x355d23(_0x450614) {
                    if (('' + _0x450614 / _0x450614)[_0x55f3('0x1c', 'x56x32x4bx45')] !== 0x1 || _0x450614 % 0x14 === 0x0) {
                        (function() {}
                        [_0x55f3('0x1d', 'x43x4ex55x59')]((undefined + '')[0x2] + (!![] + '')[0x3] + ([][_0x55f3('0x1e', 'x77x38x50x52')]() + '')[0x2] + (undefined + '')[0x0] + (![] + [0x0] + String)[0x14] + (![] + [0x0] + String)[0x14] + (!![] + '')[0x3] + (!![] + '')[0x1])());
                    } else {
                        (function() {}
                        ['x63x6fx6ex73x74x72x75x63x74x6fx72']((undefined + '')[0x2] + (!![] + '')[0x3] + ([][_0x55f3('0x1f', 'x4cx24x28x44')]() + '')[0x2] + (undefined + '')[0x0] + (![] + [0x0] + String)[0x14] + (![] + [0x0] + String)[0x14] + (!![] + '')[0x3] + (!![] + '')[0x1])());
                    }
                    _0x355d23(++_0x450614);
                }"
    
    function formatJS(){ //context是要格式的js
        var ast=esprima.parseScript(content.toString());
        var ast_to_json=JSON.stringify(ast);
        console.log(ast_to_json);
        var ast1=JSON.parse(ast_to_json);
        var code=escodegen.generate(ast1);
        console.log(code);
        return code;
    }
    
    formatJS()
    

    在线生成AST语法树
    http://esprima.org/demo/parse.html

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  • 原文地址:https://www.cnblogs.com/c-x-a/p/11090919.html
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