A quick script to spot the usage of Unicode Bidi (bidirectional) characters that could lead to an Invisible Backdoor

Overview

Invisible Backdoor Detector

Invisible Backdoor Detector is a little Python script that allows you to spot and remove Bidi characters that could lead to an invisible backdoor. If you don't know what that is you should check the related paragraph.

Documentation License: MIT

Table of Contents

What is an Invisbile Backdoor

An Invisible Backdoor is exactly what you think: a backdoor that you cannot see! It was described by Wolfgang Ettlinger at Certitude in this blog post. It leverages the presence of Unicode characters (Bidi characters) which behaves like normal spaces. In conjunction with the Javascript object destructuring those characters may allow an attacker to introduce a backdoor into an open-source project without anyone noticing it. Check out the blog post for more info.

Installation and Usage

python3 -m pip install -r requirements.txt
python3 invisible-backdoor-detector.py path 
   
     [--remove]

   

The path argument is mandatory while the --remove argument allows you to automatically remove the spotted Bidi characters

Example

The example folder provides a working example of an invisible backdoor in Node.js, you may test the script on that folder. If you want to try out the backdoor you can add the following parameter to the query string:

%E3%85%A4=
   

   

Contributions

Everyone is invited to contribute! If you are a user of the tool and have a suggestion for a new feature or a bug to report, please do so through the issue tracker.

Credits

Developed by Angelo Delicato @SecSI

License

invisible-backdoor-detector is released under the MIT LICENSE

Owner
SecSI
Security Solutions for Innovation
SecSI
Web Scraping com Python - Raspando Vagas para Programadores

Web Scraping com Python - Raspando Vagas para Programadores Sobre o Projeto Web

Kayo Libarino 3 Dec 30, 2021
CTF framework and exploit development library

pwntools - CTF toolkit Pwntools is a CTF framework and exploit development library. Written in Python, it is designed for rapid prototyping and develo

Gallopsled 9.8k Dec 31, 2022
Source code for "A Two-Stream AMR-enhanced Model for Document-level Event Argument Extraction" @ NAACL 2022

TSAR Source code for NAACL 2022 paper: A Two-Stream AMR-enhanced Model for Document-level Event Argument Extraction. 🔥 Introduction We focus on extra

21 Sep 24, 2022
Buffer Overflow para SLmail5.5 32 bits

SLmail5.5-Exploit-BoF Buffer Overflow para SLmail5.5 32 bits con un par de utilidades para que puedas hacer el tuyo REQUISITOS PARA QUE FUNCIONE: Desa

Luis Javier 15 Jul 30, 2022
This is a Python program that implements a vacuum cleaner as an Artificial Intelligence.

Vacuum-Cleaner Python3 This is a Python3 agent that implements a simulator for a vacuum cleaner and it is introduction to Artificial Intelligence. A s

Abdultawwab Safarji 6 Nov 14, 2022
The backend part of the simple password manager project made for the creative challenge.

SimplePasswordManagerBackend The backend part of the simple password manager project. Your task will be to showcase your creativity on our channel by

The Coding Jungle 5 Dec 28, 2021
Instagram brute force tool that uses tor as its proxy connections

Insta-crack This is a instagram brute force tool that uses tor as its proxy connections, keep in mind that you should not do anything illegal with thi

Liam 3 Jan 28, 2022
FIVE, Vulnerability Scanner And Mass Exploiter, made for pentesting.

$ FIVE - FIVE is a Pentesting Framework to Test the Security & Integrity of a Website, or Multiple Websites. $ Info FIVE Was Made After Vulnnr to Prod

Neon 24 Dec 10, 2021
Brute-Force-Connected

Brute-Force-Connected Guess the password for Connected accounts the use : Create a new file and put usernames and passwords in it Example : joker:1234

4 Jun 05, 2022
Discord-keylogger - Discord keylogger With Python

Discord-keylogger Usage python dlogger.py -t [Time interval in sec] if not speci

Satwik Sinha 1 Jan 30, 2022
NExfil is an OSINT tool written in python for finding profiles by username.

NExfil is an OSINT tool written in python for finding profiles by username. The provided usernames are checked on over 350 websites within few seconds.

thewhiteh4t 1.4k Jan 01, 2023
Crypto Meta Extractor

Crypto Meta Extractor This repository contains the code which extracts some metadata of all the cryptocurrencies listed (9K) on CoinMarketCap. Coding

Samyak Jain 3 Jul 03, 2022
A scanner and a proof of sample exploit for log4j RCE CVE-2021-44228

1.Create a Sample Vulnerable Application . 2.Start a netcat listner . 3.Run the exploit . 5.Use jdk1.8.0_20 for better results . Exploit-db - https://

Isuru Umayanga 7 Aug 06, 2022
Lightweight and beneficial Dependency Injection plugin for apscheduler

Implementation of dependency injection for apscheduler Prerequisites: apscheduler-di solves the problem since apscheduler doesn't support Dependency I

Glib 11 Dec 07, 2022
A honeypot for the Log4Shell vulnerability (CVE-2021-44228)

Log4Pot A honeypot for the Log4Shell vulnerability (CVE-2021-44228). License: GPLv3.0 Features Listen on various ports for Log4Shell exploitation. Det

Thomas Patzke 79 Dec 27, 2022
Exploit-CVE-2021-21086

CVE-2021-21086 Exploit This exploit allows to execute a shellcode in the context of the rendering process of Adobe Acrobat Reader DC 2020.013.20074 an

Faraday 23 Nov 09, 2022
SCodeScanner stands for Source Code scanner where the user can scans the source code for finding the Critical Vulnerabilities.

The SCodeScanner stands for Source Code Scanner, where you can scan your source code files like PHP and get identify the vulnerabilities inside it. The tool can use by Pentester, Developer to quickly

136 Dec 13, 2022
Scanning for CVE-2021-44228

Filesystem log4j_scanner for windows and Unix. Scanning for CVE-2021-44228, CVE-2021-45046, CVE-2019-17571 Requires a minimum of Python 2.7. Can be ex

Brett England 4 Jan 09, 2022
Pupy is an opensource, cross-platform (Windows, Linux, OSX, Android) remote administration and post-exploitation tool mainly written in python

Pupy Installation Installation instructions are on the wiki, in addition to all other documentation. For maximum compatibility, it is recommended to u

7.4k Jan 04, 2023