trs 🔭

Overview 🏕️

trs leverages OpenAI and ChromaDB to analyze and chat with cyber threat intelligence reports and blogs.

Supply a threat report URL to pre-built commands for summarization, MITRE TTP extraction, mindmap creation, and identification of detection opportunities, or run your own custom prompts against the URLs text content.

Each URLs text is stored in a Chroma vector database so you can have QnA / Retrieval-Augmented-Generation (RAG) chat sessions with your stored data.

The OpenAI model gpt-4-1106-preview is used in order to support larger contexts more easily, but feel free to swap this out for another model.

Full documentation: https://trs.deadbits.ai

Features ✨

• Report Summarization: Concise summary of threat reports
• TTP Extraction: Extract MITRE ATT&CK tactics, techniques, and procedures
• IOC Extraction: Extract IOCs via python-iocextract
• Mindmap Creation: Generate Mermaid mindmap representing report artifacts
• Detection Opportunities: Identify potential threat detections
• Custom Prompts: Run custom prompts against reports
• Chat Mode: Chat with stored data via LLM
• Web Interface: Streamlit web user interface

Installation 🧰

Clone repository

git clone https://github.com/deadbits/trs.git
cd trs

Setup Python virtual environment

python3 -m venv venv
source venv/bin/activate

Install Python requirements

pip install -r requirements.txt

Usage 💬

Command line tool

Set your OpenAI API key:

export OPENAI_API_KEY="sk-..."

Run command line application

python trs-cli.py --chat

---

Streamlit UI

Set your OpenAI API key:

• Modify .streamlit/secrets.toml

Run Streamlit web interface

streamlit run trs-streamlit.py

Important

Per Streamlit's documentation, "Streamlit runs your script from top to bottom at every user interaction or code change." This can lead to high memory usage due to ChromaDB being loaded into memory over and over. Right now, the CLI is the recommended mode of interaction.

More screenshots are available here.

Command List 🛠️

Command	Description
!summ	Generate a summary of the URL content including key takeaways, summary paragraph, MITRE TTPs, and Mermaid mindmap for a report overview.
!detect	Identify any threat detection opportunities within the URL content.
!custom	Fetch the URL content and process it with a custom prompt.
all other input	Run RAG pipeline with input as query

Retrieval-Augmented-Generation 🔍

• Indexing and retrieval pipeline diagrams

Before you can use the chat functionality, you must first process a URL with one of the commands above so the vector database has some context to use.

Any input that is not a !command will be sent to the RAG pipeline.

If the answer is not available in the context, you won't get an answer.

💀 >> Summarize the LemurLoot malware functionality        
2023-10-14 14:51:51.140 | INFO     | trs.vectordb:query:84 - Querying database for: Summarize the LemurLoot malware functionality
2023-10-14 14:51:51.840 | INFO     | trs.vectordb:query:90 - Found 3 results
2023-10-14 14:51:51.841 | INFO     | trs.llm:qna:98 - sending qna prompt
2023-10-14 14:51:51.841 | INFO     | trs.llm:_call_openai:41 - Calling OpenAI
2023-10-14 14:51:51.854 | INFO     | trs.llm:_call_openai:59 - token count: 2443
🤖 >>
The LemurLoot malware has several functionalities. It uses the header field “X-siLock-Step1’ to receive commands from the operator, with two well-defined commands: -1 and -2.  
Command “-1” retrieves Azure system settings from MOVEit Transfer and performs SQL queries to retrieve files. Command “-2” deletes a user account with the LoginName and        
RealName set to "Health Check Service". If any other values are received, the web shell opens a specified file and retrieves it. If no values are specified, it creates the     
“Health Check Service” admin user and creates an active session.

Custom Prompts 📝

Custom prompt templates can be saved to the prompts/ directory as text files with the .txt extension. The !custom command will look for prompts by file basename in that directory, add the URL's text content to the template, and send it to the LLM for processing.

Custom prompts must include the format string {document} so the URL text content can be added.

Streamlit UI

The Streamlit application offers some functionality that the CLI tool does not, including:

View prompt and response history

View database records

License

This project is licensed under the Apache 2.0 License - see the LICENSE.md file for details.