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TLSfeatmark

What is Tlsfeatmark

Tlsfeatmark is a benchmark tool for TLS analytics using Joy and Zeek. It generates nice JSON output on several statistics for each pcap and all pcaps analyzed:

  • the number of TCP stream found
  • the number of TLS stream found
  • the number of certificates found
  • the elapsed time of analysis

Sample output

===== Summary =====
{
    "cpu": "11th Gen Intel(R) Core(TM) i7-11700K @ 3.60GHz",
    "os": "Linux 4.18.0-348.2.1.el8_5.x86_64",
    "time": "2022-06-27 13:43:03",
    "joy": {
        "job": {
            "tool": "joy",
            "pcap_path": "/home/dev/tlsfeatmark/pcaps/small_pcaps",
            "pcap_num": 5,
            "tls_total": 323,
            "cert_total": 294,
            "elapsed_total": 0.32
        },
        "task": [
            {
                "name": "2021-01-13-Emotet-epoch-2-infection-traffic-with-Trickbot-gtag-mor13-2.pcap",
                "tls_num": 46,
                "cert_num": 78,
                "elapsed": 0.06
            },
            {
                "name": "2021-01-04-Emotet-infection-with-Trickbot-traffic.pcap",
                "tls_num": 10,
                "cert_num": 10,
                "elapsed": 0.04
            }
            ... # skip several other tasks
        ]
    },
    "zeek": {
        "job": {
            "tool": "zeek",
            "pcap_path": "/home/dev/tlsfeatmark/pcaps/small_pcaps",
            "pcap_num": 5,
            "tls_total": 323,
            "cert_total": 477,
            "elapsed_total": 1.06
        },
        "task": [
            {
                "name": "2021-01-13-Emotet-epoch-2-infection-traffic-with-Trickbot-gtag-mor13-2.pcap",
                "tls_num": 46,
                "cert_num": 84,
                "elapsed": 0.23
            },
            {
                "name": "2021-01-04-Emotet-infection-with-Trickbot-traffic.pcap",
                "tls_num": 10,
                "cert_num": 15,
                "elapsed": 0.17
            },
            ...        
            # skip several other tasks
        ]
    }
}

Environment

Tlsfeatmark relies on Joy and Zeek, and they work well on Linux and Mac OSX.

  • Linux: Centos8/Ubuntu20.04, tested
  • Mac: x86/M1, tested
  • Windows: untested

How to install

  1. Install Joy

see Joy official documentation for installation.

  1. Install Zeek

see Zeek official documentation for installation.

  1. Install tlsfeatmark

Install Python(Python 3.x can work) and tlsfeatmark.

pip3 install tlsfeatmark

If you'd like to use a standalone virtual environment, use following steps:

python3 -m venv test_venv
source test_venv/bin/activate
pip3 install tlsfeatmark

How to use

Tlsfeatmark is easy to use once Joy and Zeek are installed.

  1. Configure pcap_path in config.txt

pcap_path is the pcap file or dir containing pcaps to be analyzed.

pcap_path supports absolute and relative path. For relative path (relative to main.py), use ./ as prefix, for example, ./pcaps/small_pcaps.

  1. Run main.py

  2. View results in output folder.

Caveats

The Joy command uses gunzip for compression/decompression of log files, which may generate large tmp files in /tmp and can cause "no space left on device". You may manually remove these tmp files in /tmp.

License

Tlsfeatmark is under MIT license, see LICENSE for more information.

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