ICS-Forensics-Tools – Microsoft ICS Forensics Framework

Microsoft ICS Forensics Tools is an open source forensic framework for analyzing Industrial PLC metadata and project files.
it enables investigators to identify suspicious artifacts on ICS environment for detection of compromised devices during incident response or manual check.
open source framework, which allows investigators to verify the actions of the tool or customize it to specific needs.

Getting Started

These instructions will get you a copy of the project up and running on your local machine for development and testing purposes.

git clone https://github.com/microsoft/ics-forensics-tools.git

Prerequisites

• Install Python >= 3.9: https://www.python.org/downloads

Installing

• Install python requirements

  pip install -r requirements.txt
  

Usage

General application arguments:

Specific plugin arguments:

Executing examples in the command line

 python driver.py -s -v PluginName --ip ips.csv
 python driver.py -s -v PluginName --analyzer AnalyzerName
 python driver.py -s -v -c config.json --multiprocess

Import as library example

from forensic.client.forensic_client import ForensicClient
from forensic.interfaces.plugin import PluginConfig
forensic = ForensicClient()
plugin = PluginConfig.from_json({
    "name": "PluginName",
    "port": 123,
    "transport": "tcp",
    "addresses": [{"ip": "192.168.1.0/24"}, {"ip": "10.10.10.10"}],
    "parameters": {
    },
    "analyzers": []
})
forensic.scan([plugin])

Architecture

Adding Plugins

When developing locally make sure to mark src folder as “Sources root”

• Create new directory under plugins folder with your plugin name
• Create new Python file with your plugin name
• Use the following template to write your plugin and replace ‘General’ with your plugin name

from pathlib import Path
from forensic.interfaces.plugin import PluginInterface, PluginConfig, PluginCLI
from forensic.common.constants.constants import Transport


class GeneralCLI(PluginCLI):
    def __init__(self, folder_name):
        super().__init__(folder_name)
        self.name = "General"
        self.description = "General Plugin Description"
        self.port = 123
        self.transport = Transport.TCP

    def flags(self, parser):
        self.base_flags(parser, self.port, self.transport)
        parser.add_argument('--general', help='General additional argument', metavar="")


class General(PluginInterface):
    def __init__(self, config: PluginConfig, output_dir: Path, verbose: bool):
        super().__init__(config, output_dir, verbose)

    def connect(self, address):
        self.logger.info(f"{self.config.name} connect")

    def export(self,    extracted):
        self.logger.info(f"{self.config.name} export")

• Make sure to import your new plugin in the __init__.py file under the plugins folder
• In the PluginInterface inherited class there is ‘config’ parameters, you can use this to access any data that’s available in the PluginConfig object (plugin name, addresses, port, transport, parameters).
  there are 2 mandatory functions (connect, export).
  the connect function receives single ip address and extracts any relevant information from the device and return it.
  the export function receives the information that was extracted from all the devices and there you can export it to file.
• In the PluginCLI inherited class you need to specify in the init function the default information related to this plugin.
  there is a single mandatory function (flags).
  In which you must call base_flags, and you can add any additional flags that you want to have.

Adding Analyzers

• Create new directory under analyzers folder with the plugin name that related to your analyzer.
• Create new Python file with your analyzer name
• Use the following template to write your plugin and replace ‘General’ with your plugin name

from pathlib import Path
from forensic.interfaces.analyzer import AnalyzerInterface, AnalyzerConfig


class General(AnalyzerInterface):
    def __init__(self, config: AnalyzerConfig, output_dir: Path, verbose: bool):
        super().__init__(config, output_dir, verbose)
        self.plugin_name = 'General'
        self.create_output_dir(self.plugin_name)

    def analyze(self):
      pass

• Make sure to import your new analyzer in the __init__.py file under the analyzers folder

Resources and Technical data & solution:

Microsoft Defender for IoT is an agentless network-layer security solution that allows organizations to continuously monitor and discover assets, detect threats, and manage vulnerabilities in their IoT/OT and Industrial Control Systems (ICS) devices, on-premises and in Azure-connected environments.

Section 52 under MSRC blog
ICS Lecture given about the tool
Section 52 – Investigating Malicious Ladder Logic | Microsoft Defender for IoT Webinar – YouTube

Contributing

This project welcomes contributions and suggestions. Most contributions require you to agree to a Contributor License Agreement (CLA) declaring that you have the right to, and actually do, grant us the rights to use your contribution. For details, visit https://cla.opensource.microsoft.com.

When you submit a pull request, a CLA bot will automatically determine whether you need to provide a CLA and decorate the PR appropriately (e.g., status check, comment). Simply follow the instructions provided by the bot. You will only need to do this once across all repos using our CLA.

This project has adopted the Microsoft Open Source Code of Conduct. For more information see the Code of Conduct FAQ or contact [email protected] with any additional questions or comments.

Trademarks

This project may contain trademarks or logos for projects, products, or services. Authorized use of Microsoft trademarks or logos is subject to and must follow Microsoft’s Trademark & Brand Guidelines. Use of Microsoft trademarks or logos in modified versions of this project must not cause confusion or imply Microsoft sponsorship. Any use of third-party trademarks or logos are subject to those third-party’s policies.