Openbullet 2
OpenBullet 2 stands as a testament to the capabilities of modern open-source development. By moving to a web-based architecture and refining its scripting capabilities, it has streamlined the process of web automation. While it remains a polarizing tool due to its association with cybercrime, its technical merits offer a powerful, customizable environment for anyone looking to understand or test the security of web authentication systems.
Understanding OpenBullet 2: A Comprehensive Guide to the Web Automation Suite
OpenBullet 2 is a powerful, cross-platform automation suite powered by .NET Core, designed for developers and security researchers. While it is widely recognized as a versatile tool for web scraping and automated penetration testing, its high level of customization has also made it a popular choice for more malicious activities, such as credential stuffing. Core Functionality and Features
OpenBullet 2 functions as a "middle-sophistication" automation tool that allows users to perform complex HTTP requests against target web applications. Its key capabilities include:
Data Scraping and Parsing: It can easily process HTML and JSON to transform received data into convenient formats for further analysis.
Built-in Data Management: After a process is complete, users can utilize internal tools to filter, sort, and remove duplicate data.
Customizable Configurations: Users can create "blueprints" or configs that define specific login URLs, parameter names, and success conditions for a target site.
Proxy Integration: To avoid detection or IP bans, the tool supports rotating proxies, including residential and datacenter options.
Advanced Solver Support: It can leverage third-party CAPTCHA solvers to bypass security challenges that would otherwise block automated bots. Getting Started with OpenBullet 2
The transition from the original OpenBullet to OpenBullet 2 introduced a web-based client, making it more accessible across different operating systems. Installation Basics
OpenBullet 2 can be installed on Windows, Linux, and macOS. For Windows users:
Getting to Know OpenBullet 2: Functionality, Interface, Settings openbullet 2
OpenBullet 2 (OB2) is a web testing suite that allows users to perform requests towards a target web app and offers a lot of tools to work with the data. It is a complete rewrite of the original OpenBullet, designed to be cross-platform (running on Windows, Linux, and macOS) using the ASP.NET Core framework. ⚙️ Core Architecture and Functionality
OpenBullet 2 operates as a flexible scraper and API testing tool. Its core is built around "Configurations" (configs), which are sets of scripts and parameters that tell a bot how to interact with a specific website.
LoliCode: OB2 uses a custom scripting language called LoliCode, which allows for complex logic, statements, and blocks to control the flow of a script.
Blocks: These are modular units of code (e.g., HTTP Request, Parsing, Scripting) that can be stacked to build a configuration.
Cross-Platform: Unlike the original WinForms version, OB2 can be hosted as a web application or run as a native desktop client. 📝 Working with Long Text and Data
Users often encounter challenges when dealing with "long text" or large data sets within the application.
[BUG] Debugger Log hangs with big sources · Issue #406 - GitHub
Understanding OpenBullet 2: The Modern Evolution of Automation
In the world of web automation and security testing, OpenBullet has long been a household name. With the release of OpenBullet 2, the project has transitioned from a Windows-specific tool to a powerful, cross-platform framework. Built from the ground up using .NET Core, OpenBullet 2 is designed for developers, penetration testers, and data enthusiasts who need a flexible environment to automate web requests. What is OpenBullet 2?
OpenBullet 2 is a web testing suite that allows users to perform requests towards a target web application. While its predecessor was a desktop-only application, OpenBullet 2 is a web-based application. This means you can host it on a remote server (VPS) and access the interface via any browser, making it ideal for 24/7 automation tasks. At its core, it is used for:
Data Scraping: Extracting large amounts of information from websites. OpenBullet 2 stands as a testament to the
Penetration Testing: Testing the resilience of login forms and APIs against brute-force or credential stuffing (always with permission).
Automated UI Testing: Verifying that web elements work as intended.
API Interaction: Simplifying complex sequences of API calls. Key Features and Improvements 1. Cross-Platform Compatibility
Unlike the original version which relied on Windows Forms, OpenBullet 2 runs on Windows, Linux, and macOS. This is made possible by the move to ASP.NET Core and Blazor. 2. Native Puppeteer and Selenium Support
While the original was focused mainly on HTTP requests, OpenBullet 2 integrates Puppeteer and Selenium. This allows users to automate "headless" browsers, making it much easier to interact with modern, JavaScript-heavy websites that block standard HTTP clients. 3. The "Stack" System
OpenBullet 2 uses a visual "stack" system for building configurations. You can drag and drop blocks (like HTTP Request, Parsing, or Scripting) to create a logic flow. For advanced users, it also supports LoliCode, a dedicated scripting language that gives you full control over the automation logic. 4. Multi-User Support
Because it is a web app, OpenBullet 2 supports multiple user accounts with different permission levels. This is perfect for teams working on shared automation projects. Getting Started: Installation
Setting up OpenBullet 2 is straightforward, especially if you have a basic understanding of terminal commands.
Install the Runtime: You’ll need the .NET 6 Runtime installed on your machine or server.
Download the Build: Grab the latest release from the official OpenBullet 2 GitHub repository.
Run the App: Execute dotnet OpenBullet2.dll in your terminal. The development of OpenBullet 2 continues
Access the Dashboard: By default, the app runs on http://localhost:5000. Open this in your browser to begin the setup wizard. Responsible Use and Ethics
It is crucial to highlight that OpenBullet 2 is a neutral tool. While it is powerful for data mining and security auditing, it is frequently associated with "credential stuffing"—the unauthorized testing of leaked passwords.
Always ensure you have explicit permission before running a configuration against a website. Unauthorized access to computer systems is illegal and unethical. Use OpenBullet 2 to sharpen your coding skills, automate your own boring tasks, or secure your own applications. Conclusion
OpenBullet 2 represents a significant leap forward in the automation space. By combining the speed of HTTP requests with the versatility of browser automation, it provides a comprehensive toolkit for anyone looking to interact with the web at scale. Whether you are a security researcher or a data scientist, its modularity and cross-platform nature make it a top-tier choice for your workflow.
The development of OpenBullet 2 continues. The current roadmap includes:
As web defenses improve (e.g., passkeys, advanced CAPTCHAs), OpenBullet 2 will evolve. It is a classic arms race between attackers and defenders, and OpenBullet 2 is currently the weapon of choice for the former.
Built on Avalonia UI, OpenBullet 2 offers a native look on Windows, Linux, and macOS. The dashboard provides real-time graphs showing attempts per second (attempts/s), proxy health, success/failure ratios, and detailed logs.
Proxy chaining, automatic proxy rotation, and a sophisticated proxy scraping module are baked into version 2. It supports HTTP, HTTPS, SOCKS4, and SOCKS5 proxies, with automated checker to filter out dead or slow proxies before a campaign begins.
Valid accounts are saved as "Hits". From there, they are:
Understanding the black-hat workflow helps defenders build better countermeasures.
Downloading and using OpenBullet 2 is not illegal in most jurisdictions. The tool itself is merely a piece of software. However, using it to test a website without explicit written permission is illegal.
If you are a penetration tester:
If you are a hobbyist: Do not point OpenBullet 2 at any live website that isn't your local lab. Most cloud providers (AWS, DigitalOcean) will terminate your account immediately upon receiving an abuse report.