bitcamp2025🚀

Cyber Sentinel

Raspberry Pi tool that detects suspicious websites using system profiling and static code analysis, with features such as file download safety checks and continuous system monitoring.

Check out Cyber Sentinel on Devpost

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🔥 Inspiration

We wanted to build a simple and affordable way to help people stay safe online—especially those who might not be very tech-savvy, like parents, grandparents, or small office teams. Many tools today are complicated, costly, or collect your data behind the scenes.

With Cyber Sentinel, we aimed to create something:

• Easy to set up
• No ongoing payments
• Fully user-controlled

Whether it’s for family or shared workstations, this tool quietly monitors in the background and only steps in when something seems off.

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💡 What It Does

Cyber Sentinel is a Raspberry Pi-powered web threat detection system paired with a custom browser extension. It:

• Collects system stats (CPU, RAM, network) during page loads
• Calculates z-scores from a baseline to detect anomalies
• Performs static code analysis using Semgrep
• Blocks suspicious network requests unless user-approved
• Displays a real-time risk dashboard in the browser popup

All processing is done locally for privacy and transparency.

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🛠️ How We Built It

• Frontend: Tailwind CSS + React
• Malware Detection: YARA rules for analyzing website code and downloads
• Monitoring: Raspberry Pi running Python scripts to track system stats
• Communication: MongoDB as a task queue between components

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🧗 Challenges We Ran Into

Raspberry Pi's security restrictions prevented direct script execution over SSH. We resolved this by using MongoDB as a queueing intermediary to safely process tasks.

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🏆 Accomplishments We're Proud Of

Creating a finished and usable product that fits into our daily lives and actively improves online safety.

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📚 What We Learned

• Start with a wide scope, then refine into a strong MVP
• Cybersecurity is hard—but rewarding
• Real-world threat detection requires balancing usability, performance, and privacy

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🚧 What’s Next for Cyber Sentinel

• Minimize reliance on cloud middleware between Pi and extension
• Track and cache previously scanned websites
• Add user controls (e.g., pause blocking, deep scan on demand)
• Keep everything local, transparent, and private

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🧰 Built With

• CSS
• Gemini
• HTML
• JavaScript
• MongoDB
• Python
• Raspberry Pi
• Shell
• YARA

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👥 Created by

• Jai Patel
• Suvrath Chivukula
• Jordan Abraham
• Mihir Mahesh