JS Deobfuscation is a Python script that deobfuscates JS code and it's time saver for you

Overview

JS Deobfuscation

JS Deobfuscation is a Python script that deobfuscates JS code and it's time saver for you. Although it may not work with high degrees of obfuscation, it's a pretty nice tool to help you even if it's just a bit. You can see some example in the examples/ folder. This idea came to me when I saw an obfuscated script on GitHub. I reversed it for sure lmao. All these examples are extracted from GitHub. There are some references in the script's header.

Usage

~$ git clone https://github.com/quatrecentquatre-404/js-deobfuscator
~$ cd js-deobfuscator
~$ python3 main.py <source.js>

Patterns

The OSA (obfuscated strings array)

There are some patterns that can be easily exploited using RegExp to deobfuscate a code. First of all, majore of online obfuscator declare an array at the top of the code which contain many strings. During the runtime, the code refers to this array to get some string. By example :

const strings = ["fs"]
const fs = require(strings[0])

Can be seen as

const _0x1e5f=["\x66\x73"],_0x1e6a=require(_0x1e5f[0])

So, first of all, the script tries to get this array to replace references by strings themselves and then it removes the array.

The OSA shuffler (not supported yet)

The OSA shuffler is a function called just after the OSA declaration that shuffle all elements inside. Also, it's called before any reference to it, because after this process, references index aren't same than before. By example :

const strings = ["fs", "./any.json"]
const fs = require(strings[0])
const anyJson = require(strings[1])

Can be seen as

const _0x1e5f=["\x66\x73", "\x2e\x2f\x61\x6e\x79\x2e\x6a\x73\x6f\x6e"];(function(osa, ...){ /* Anonymouse function that shuffles the OSA */})(_0x1e5f, ...);const _0x1e6a=require(_0x1e5f[1]),_0x1e71=require(_0x1e5f[0]);

It's an arbitraty example right there, because the indexes 0 and 1 might not change. But with a huge OSA, it will be shuffled for sure.

Owner
Quatrecentquatre
French programmer : Python, JavaScript, Bash, PHP, HTML / CSS, Assembly Language Intel x86. I also do some reverse enrineering on APIs.
Quatrecentquatre
A little side-project API for me to learn about Blockchain and Tokens

BlockChain API I built this little side project to learn more about Blockchain and Tokens. It might be maintained and implemented to other projects bu

Loïk Mallat 1 Nov 16, 2021
Smart-contracts - open sourcing our upcoming smart contracts for better security and transparency

Smart-contracts - open sourcing our upcoming smart contracts for better security and transparency

Rand Gallery 16 Jul 10, 2022
A bot written in Python to automatically buy tokens on the Binance Smart Chain as soon as liquidity is provided

A bot written in Python to automatically buy tokens on the Binance Smart Chain as soon as liquidity is provided. If you’ve found this bot useful and have profited from it please consider donating any

473 Dec 25, 2022
A python script for AES Angecryption in Steganography

Angecryption is an encryption or an decryption result from a file to create an other file with the same / or not type.

ISIS 3 Jul 25, 2022
C0mptCrypt - An object-oriented, minamalistic, simple encryption library in Python

C0mptCrypt allows you to encrypt strings of text. It can only be decrypted using C0mptCrypt and not by random online tools. You can use this for a variety of things from creating passwords, to encryp

c0mpt0 4 Aug 22, 2022
A curated list for getting up to speed on crypto and decentralized networks

crypto reading list A curated list for getting up to speed on crypto and decentralized networks. The content on the toplevel page contains what we con

Jump Crypto 1.1k Jan 07, 2023
Connects to an active BitCoin Peer and communicates in order to locate a specific block number (height)

BitCoin-Peer-Client Connects to an active BitCoin Peer, and locates a predetermined block number (height) by downloading block headers. Once required

Henry Song 1 Jan 16, 2022
A python-jvm wrapper for interacting with the Ergo blockchain.

ergpy A python-jvm wrapper for interacting with the Ergo blockchain. Usage Requires Java 8 or higher to be installed on system pip install JPype1 pip

mgpai 16 Oct 05, 2022
Aplicação de monitoramento de valores de criptos através da API do Mercado Bitcoin.

myCrypto_MercadoBitcoin Aplicação de monitoramento de valores de criptos através da API do Mercado Bitcoin. Apoie esse projeto! 💵 💵 Olá! Você pode r

Vinícius Azevedo 122 Nov 27, 2022
Blockchain Python Implementation

Blockchain Python Implementation

0918nobita 2 Nov 21, 2021
gcrypter: an encryption algorithm based on bytes and their correspondent numbers to encode strings

gcrypter: an encryption algorithm based on bytes and their correspondent numbers to encode strings

Nuninha-GC 1 Jan 10, 2022
Hide secret data within a digital image using good ol' terminal

pystego Hide secret data within a digital image using good ol' terminal Installation The recommended way for installing this package is using, python

Ayush Gupta 1 Jan 06, 2022
Vaulty - Encrypt/Decrypt with ChaCha20-Poly1305

Vaulty Encrypt/Decrypt with ChaCha20-Poly1305 Vaulty is an extremely lightweight encryption/decryption tool which uses ChaCha20-Poly1305 to provide 25

Chris Mason 1 Jul 04, 2022
A crypto bot that checks the price movement in the markets and creates buy and sell signals

Booter bot Purpose The purpose of this bot is to check the price fluctuations in a given market in binance and create the idealistic signals based on

2 Oct 09, 2022
This is a fully functioning Binance trading bot that takes into account the news sentiment for the top 100 crypto feeds.

This is a fully functioning Binance trading bot that takes into account the news sentiment for the top 100 crypto feeds.

Andrei 1.5k Jan 04, 2023
GreenDoge is a modern community-centric green cryptocurrency based on a proof-of-space-and-time consensus algorithm.

GreenDoge Blockchain Download GreenDoge blockchain GreenDoge is a modern community-centric green cryptocurrency based on a proof-of-space-and-time con

40 Sep 11, 2022
Enchpyter, is able to encrypt and decrypt words as you determine, of course, according to the alphabet.

Enchpyter Enchpyter is a program do encrypt and decrypt any word you want (just letters). You enter how many letters jumps and write the word, so, the

João Assalim 2 Oct 10, 2022
This is an experimental AES-encrypted RPC API for ESP 8266.

URPC This is an experimental AES-encrypted RPC API for ESP 8266. Usage The server folder contains a sample ESP 8266 project. Simply set the values in

Ian Walton 1 Oct 26, 2021
Tron Wallet (TRX) Crack Finder With Python Just 64 Line

TRXGEN Tron Wallet Finder and Crack With Python Tron Wallet (TRX) Crack Finder With Python Just 64 Line My tools [pycharm + anaconda3 + python3.8 + vi

MMDRZA 6 Dec 18, 2022
The leading native Python SSHv2 protocol library.

Paramiko Paramiko: Python SSH module Copyright: Copyright (c) 2009 Robey Pointer 8.1k Jan 08, 2023