JS content confusion, return content encryption

The target site ：

a04a7c5e14846edd70e5bb4c4ba8a69aa947a5c001dac7cfeff16c1db3a152389b76b67b89c670a2baf3dffa5fb54d7ead18604d550b6ebff3e432102e08d976

Refresh , stay fidder And developer tools to search , I can't find it , Then take a look at the following ： Obviously transcoded .

 

The solution here is , Install first ast Environmental Science ,npm init Be sure to add

  You must add types here , Then add the environment

  And then convert the code ：

//dec_main.js
import { parse } from "@babel/parser";
import generate from "@babel/generator";
import * as types from "@babel/types";
import traverse from "@babel/traverse";
import fs from "fs";
// Read js file 
const jscode = fs.readFileSync('./democode.js', "utf-8");
let ast = parse(jscode);//js turn ast
function decry_str(ast) {
    // Restore numbers and characters 
    traverse.default(ast, {
        'StringLiteral|NumericLiteral|DirectiveLiteral'(path) {// Iteration string | Iterative array matching --16 Hexadecimal text restore 
            delete path.node.extra; // Delete extra parts of the node - Trigger raw value processing 
        },
    });
    return ast;
}
ast = decry_str(ast)// Hexadecimal digit restoration and character restoration 
let {code} = generate.default(ast,{jsescOption:{"minimal":true}})
// file save 
fs.writeFile('./demoNew.js', code, (err) => {
});