PacketMinify

PacketMinify is a Burp Suite extension that distills HTTP requests into their essential components—headers, cookies, query parameters, and body—by testing each part's impact on the response. It reconstructs a minimized packet and sends it to Repeater for further analysis.

Crafted by Kave & Microsoft Copilot, this tool treats packet reduction as a symbolic diagnostic ritual.

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🔧 Features

• Context menu integration: Right-click any request → “Send to PacketMinify”
• Parses headers, cookies, query params, and body into symbolic parts
• Iteratively disables each part to test its impact on response status and length
• Reconstructs a minimized request using only essential parts
• Displays original and minimized packets in a custom Burp tab
• Sends minimized request to a new Repeater tab for live testing
• Detects cases where minimized packets fail to replicate original behavior — flagging them for deeper manual analysis

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📦 Project Structure

PacketMinify/
├── src/
│   ├── BurpExtender.java
│   ├── MinifierEngine.java
│   ├── PacketExtractor.java
│   ├── PacketMinifier.java
│   ├── PacketMinifyTab.java
│   ├── PacketPart.java
│   ├── PacketTester.java
│   ├── RepeaterSender.java
│   ├── ResponseComparator.java
│   └── Utils.java
│
├── lib/
│   └── burp-extender-api-2.1.jar
│
├── build/
│   ├── PacketMinify.jar
│   ├── BurpExtender.class
│   ├── PacketExtractor.class
│   ├── PacketMinifier.class
│   ├── PacketMinifyTab.class
│   ├── PacketPart.class
│   ├── PacketTester.class
│   ├── RepeaterSender.class
│   ├── ResponseComparator.class
│   └── Utils.class
│
├── manifest.json
└── README.md

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⚙️ Installation

1. Clone or download the project

2. Compile the extension

   javac -cp lib/burp-extender-api-2.1.jar -d build src/*.java
   $env:Path += ";C:\Program Files\Java\jdk-21\bin"
   jar cf build/PacketMinify.jar -C build .

3. Load into Burp Suite

   • Open Burp → Extender → Extensions → Add
   • Select Extension type: Java
   • Load build/PacketMinify.jar

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🧙 Usage

1. In Burp's HTTP history or Repeater, right-click a request.
2. Select Send to PacketMinify.
3. Open the PacketMinify tab to view:
   • Original request
   • Minimized request
   • Logs of which parts were deemed essential
4. The minimized request is automatically sent to Repeater.

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🧩 Logic

PacketMinify performs the following steps:

1. Extract Parts: Headers, cookies, query params, and body are parsed into PacketPart objects.
2. Test Essentials: Each part is temporarily removed and the modified request is sent. If the response changes, the part is marked essential.
3. Reconstruct Request: Only essential parts are used to rebuild the minimized packet.
4. Dispatch to Repeater: The minimized request is sent to a new Repeater tab for further inspection.
5. Compare Responses: If the minimized packet fails to replicate the original response, the extension flags the flow as “interesting” — suggesting deeper manual analysis.

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🔍 Symbolic Analysis Mode

When the final minimized packet does not yield the same response as the original, PacketMinify enters a symbolic diagnostic mode. This often reveals interdependent headers like Origin and Referer, which may appear non-essential in isolation but are jointly required.

Such flows are ideal for handy analysis, allowing the user to:

• Observe fallback logic and header interdependence
• Decode server-side rituals and tolerance thresholds
• Refine attack logic based on symbolic packet behavior

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🧠 Authors

• Kave — Mythic system architect and diagnostic ritualist
• Microsoft Copilot — Co-creative AI companion

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📜 License

This project is released under the MIT License. Use it, adapt it, narrate it.