sub404 - A python tool to check subdomain takeover vulnerab

项目说明

Sub404: A Fast Tool To Check Subdomain Takeo

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What is Sub 404

Sub 404 is a tool written in python which is used to check possibility of subdomain takeo and it is fast as it is asynchronous.

Why

During recon process you might get a lot of subdomains(e.g more than 10k). It is not possible to test each manually or with traditional requests or urllib method as it is very slow. Using <b>Sub 404</b> you can automate this task in much faster way. Sub 404 uses <b>aiohttp/asyncio</b> which makes this tool asynchronous and faster.

How it works

Sub 404 uses subdomains list from text file and checks for url of <b>404 Not Found</b> status code and in addition it fetches <b>CNAME</b>(Canonical name) and remo URL which ha domain name in CNAME. It also combines result from <b>subfinder</b> and <b>sublist3r</b>(subdomain enumeration tool) if you don't ha subdomains as two is better than one. But for this sublist3r and subfinder tools must be installed in your system. Sub 404 is able to check <b>7K</b> subdomains in less than 5 minutes.

Key Features:

How to use:

<b>Note: Only works on Python3.7+</b>

git clone

Install dependencies: pip install -r requirements.txt

Install Subfinder (optional)

Install Sublist3r (optional)

python3 sub404.py -h

Using docker

As an alternative, it is also possible to build a Docker image, so no prerequisites are necessary.

Usage example:

<b>Note: If subfinder and sublist3r is installed.</b><br>
This combines result from sublist3r and subfinder tool and checks for possibility of takeover.<br>
<code>$ python3 sub404.py -d anydomain.com</code>

!Example
<br><br><br>
<b> - If subfinder and sublist3r is not installed, provide subdomains in text file</b><br>
<code>$ python3 sub404.py -f subdomain.txt</code><br><br>
!Example

Note:

<b>This tool is mostly tested in linux but should works on other OS too.</b>

Usage options:

This will display help for the tool. Here are all the switches it supports.

|Flag | Description | Example |
|-----|------------------------------------------------------------------------|----------------------------------------------------------|
| -d | Domain name of the taget. | python3 sub404.py -d noobarmy.tech |
| -f | Provide location of subdomain file to check for takeover if subfinder is not installed. | python3 sub404.py -f subdomain.txt|
| -p | Set protocol for requests. Default is "http".| python3 sub404.py -f subdomain.txt -p https or python3 sub404.py -d noobarmy.tech -p https|
| -o | Output unique subdomains of sublist3r and subfinder to text file. Default is "uniqueURL.txt" | python3 sub404.py -d noobarmy.tech -o output.txt|
| -h | show this help message and exit | python3 sub404.py -h|

Note:

Contributing to Sub 404:

My Twitter:

<b>Say Hello

Credits:

Ice3man543 - Projectdiscovery's subfinder tool is used to enumerate subdomains<br>
aboul3la - aboul3la's sublist3r tool is used to enumerate subdomains

Current is 1.0

项目信息

开发语言：Python

Star 数：354

技术要点

该项目属于安全软件方向的开源资源，代码结构清晰，适合安全研究人员学习参考。项目围绕A python tool to check subdomain takeover vulnerability展开，提供了可运行的实现，对理解相关安全机制、工具原理与攻防技术具有较高的研究价值。

从技术实现角度看，此类项目的核心在于对底层原理的深入理解与工程化落地。开发者在研究过程中可以结合官方文档与社区讨论，梳理项目的初始化流程、核心模块职责与数据流转，逐步掌握其中的技术细节与设计思路。

使用与学习建议

1. 下载源码压缩包，解压到本地环境。

2. 根据项目类型准备对应的运行环境与依赖。

3. 按照 README 中的步骤完成配置与部署。

4. 在隔离的测试环境中运行验证，避免影响生产系统。

免责声明

本资源来源于开源社区，仅供安全研究、技术学习与合法授权范围内的攻防演练使用，请勿用于任何非法或侵害他人权益的用途。使用本项目产生的一切后果由使用者自行承担。