rita

README

RITA (Real Intelligence Threat Analytics)

Brought to you by Active Countermeasures.

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What is Here

RITA is an open source framework for network traffic analysis.

The framework ingests Bro Logs, and currently supports the following analysis features:

• Beaconing Detection: Search for signs of beaconing behavior in and out of your network
• DNS Tunneling Detection Search for signs of DNS based covert channels
• Blacklist Checking: Query blacklists to search for suspicious domains and hosts
• URL Length Analysis: Search for lengthy URLs indicative of malware
• Scanning Detection: Search for signs of port scans in your network

Additional functionality is being developed and will be included soon.

Automatic Installation

The automatic installer is officially supported on Ubuntu 14.04, 16.04 LTS, Security Onion, and CentOS 7

• Download the latest install.sh file from the release page
• Make the installer executable: chmod +x ./install.sh
• Run the installer: sudo ./install.sh
• Start MongoDB: sudo service mongod start

Manual Installation

To install each component of RITA by hand, check out the instructions in the docs.

Configuration File

RITA contains a yaml format configuration file.

You can specify the location for the configuration file with the -c command line flag. If not specified, RITA will look for the configuration in /etc/rita/config.yaml.

API Keys

RITA relies on the the Google Safe Browsing API to check network log data for connections to known threats. An API key is required to use this service. Obtaining a key is free, and only requires a Google account.

To obtain an API key:

• Go to the Google cloud platform console.
• From the projects list, select a project or create a new one.
• If the API Manager page is not already open, open the left side menu and select API Manager.
• On the left, choose Credentials.
• Click Create credentials and then select API key.
• Copy this API key to the APIKey field under SafeBrowsing in the configuration file.
• On the left, choose Library.
• Search for Safe Browsing.
• Click on Google Safe Browsing API.
• Near the top, click Enable.

Getting Started

System Requirements

• Operating System - The preferred platform is 64-bit Ubuntu 16.04 LTS. The system should be patched and up to date using apt-get.
• Processor (when also using Bro) - Two cores plus an additional core for every 100 Mb of traffic being captured. (three cores minimum). This should be dedicated hardware, as resource congestion with other VMs can cause packets to be dropped or missed.
• Memory - 16GB minimum. 64GB if monitoring 100Mb or more of network traffic. 128GB if monitoring 1Gb or more of network traffic.
• Storage - 300GB minimum. 1TB or more is recommended to reduce log maintenance.
• Network - In order to capture traffic with Bro, you will need at least 2 network interface cards (NICs). One will be for management of the system and the other will be the dedicated capture port. Intel NICs perform well and are recommended.

Obtaining Data (Generating Bro Logs):

• Option 1: Generate PCAPs outside of Bro

  • Generate PCAP files with a packet sniffer (tcpdump, wireshark, etc.)
  • (Optional) Merge multiple PCAP files into one PCAP file
    • mergecap -w outFile.pcap inFile1.pcap inFile2.pcap
  • Generate bro logs from the PCAP files
    • Set local_nets to your local networks
    • bro -r pcap_to_log.pcap local "Site::local_nets += { 192.168.0.0/24 }" "Log::default_rotation_interval = 1 day"

• Option 2: Install Bro and let it monitor an interface directly [instructions]

  • You may wish to compile Bro from source for performance reasons. This script can help automate the process.
  • The automated installer for RITA installs pre-compiled Bro binaries

Importing Data Into RITA

• After installing, rita should be in your PATH and the config file should be set up ready to go. Once your Bro install has collected some logs (Bro will normally rotate logs on the hour) you can run rita import. Alternatively, you can manually import existing logs using one of the following options:
• Option 1: Import directly from the terminal (one time import)
  • rita import path/to/your/bro_logs/ database_name
• Option 2: Set up the Bro configuration in /etc/rita/config.yaml for repeated imports
  • Set ImportDirectory to the path/to/your/bro_logs. The default is /opt/bro/logs
  • Set DBRoot to an identifier common to your set of logs

Analyzing Data With RITA

• Option 1: Analyze one dataset
  • rita analyze dataset_name
  • Ex: rita analyze MyCompany_A
• Option 2: Analyze all imported datasets
  • rita analyze

Examining Data With RITA

• Use the show-X commands
• -H displays human readable data
• rita show-beacons dataset_name -H
• rita show-blacklisted dataset_name -H
• Use less to view data rita show-beacons dataset_name -H | less -S

Getting help

Please create an issue on GitHub if you have any questions or concerns.

Contributing to RITA

To contribute to RITA visit our Contributing Guide

License

GNU GPL V3 © Active Countermeasures ™