ICS515: ICS Active Defense and Incident Response

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GIAC Response and Industrial Defense (GRID)

GIAC Response and Industrial Defense (GRID)

What You Will Learn

ICS515: ICS Active Defense and Incident Response will help you deconstruct industrial control system (ICS) cyber attacks, leverage an active defense to identify and counter threats to your ICS, and use incident response procedures to maintain the safety and reliability of operations.

The course will empower students to understand their networked ICS environment, monitor it for threats, perform incident response against identified threats, and learn from interactions with the adversary to enhance network security. This process of monitoring, responding to, and learning from threats internal to the network is known as active defense, which is needed to counter advanced adversaries targeting ICS, as has been seen with malware such as STUXNET, HAVEX, CRASHOVERRIDE, and TRISIS. Students can expect to come out of this course with the ability to deconstruct targeted ICS attacks and fight these adversaries and others.

The course uses a hands-on approach and real-world malware to break down cyber attacks on ICS from start to finish. Students will gain a practical and technical understanding of leveraging active defense concepts such as using threat intelligence, performing network security monitoring, and utilizing threat analysis and incident response to ensure the safety and reliability of operations. The strategic and technical skills presented in this course serve as a basis for ICS organizations looking to show that defense is do-able.

You Will Learn:

  • How to perform ICS incident response focusing on security operations and prioritizing the safety and reliability of operations.
  • How ICS threat intelligence is generated and how to use what is available in the community to support ICS environments. The analysis skills you learn will enable you to critically analyze and apply information from ICS threat intelligence reports on a regular basis.
  • How to identify ICS assets and their network topologies and how to monitor ICS hotspots for abnormalities and threats. The course will introduce and reinforce methodologies such as ICS network security monitoring and approaches to reducing the control system threat landscape.
  • How to analyze ICS threats and extract the most important information needed to quickly scope the environment and understand the nature of the threat.
  • How to operate through an attack and gain the information necessary to instruct teams and decision-makers on whether operations must shut down or it is safe to respond to the threat and continue operations.
  • How to use multiple security disciplines in tandem to leverage an active defense and safeguard an ICS, all reinforced with hands-on labs and technical concepts.

You Will Be Able To

  • Analyze ICS-specific threats and take proper courses of action to defend the industrial control systems
  • Establish collection, detection, and response strategies for your ICS networks
  • Use proper procedures during ICS incident response

This Course Will Prepare You To

  • Examine ICS networks and identify the assets and their data flows in order to understand the network baseline information needed to identify advanced threats
  • Use active defense concepts such as threat intelligence consumption, network security monitoring, malware analysis, and incident response to safeguard the ICS
  • Build your own Programmable Logic Controller using a CYBATIworks Kit, which you can keep after the class ends
  • Gain hands-on experience with samples of Havex, BlackEnergy2, and Stuxnet by engaging in labs and de-constructing these threats and others
  • Leverage technical tools such as Shodan, Security Onion, TCPDump, Wireshark, Snort, Bro, SGUIL, ELSA, Volatility, Redline, FTK Imager, PDF analyzers, malware sandboxes, and more
  • Create indicators of compromise (IOCs) in OpenIOC and YARA and gain an understanding of sharing standards such as STIX and TAXII
  • Take advantage of models such as the Sliding Scale of Cybersecurity, the Active Cyber Defense Cycle, and the ICS Cyber Kill Chain to extract information from threats and use it to encourage the long-term success of ICS network security

Hands-On Training

  • Build a Programmable Logic Controller (PLC) using a CYBATIworks Kit
  • Identify information available about assets online through Shodan
  • Complete an analysis of competing hypotheses
  • Ingest threat intelligence reports
  • Identify and leverage new active defense skills to guide incident responders to the Human Machine Interface (HMI) affected by an advanced persistent threat (APT) on the lab network
  • Identify which system is affected by APT malware identified in the network and assemble a sample of the threat that can be analyzed
  • From the infected HMI and samples of the APT malware identified, analyze the malware, extract information, and develop YARA rules to complete the active defense
  • Address two different hands-on, real-world scenarios, one involving data collected from an intrusion into SANS Cyber City, and the other involving data collected from a Distributed Control System (DCS) infected with malware

What You Will Receive

  • Electronic Download package contining ICS lab data such as packet captures and memory images
    • Protocol samples of OPC, ModbusTCP, DNP3, BACnet, ISO-TSAP, and more
    • System files from infected DCS and HMI systems
  • A fully functioning CYBATIworks Mini-kit that students will keep following the class
    • A Raspberry PI that functions as a PLC
    • Physical components and attachments for I/O
    • Commercial control system demonstration software from Rex Controls
    • Commercial control system demonstration software from PeakHMI
    • Commercial control system demonstration software from CyberLens
  • Samples of Stuxnet, Havex, and BlackEnergy2 in a safe Virtual Machine environment
  • A CYBATI Virtual Machine tailored for continued ICS education
  • A REMnux Virtual Machine for malware analysis
  • A Security Onion Virtual Machine for monitoring the network and detecting threats

GIAC Response and Industrial Defense

The GRID certification is for professionals who want to demonstrate that they can perform Active Defense strategies specific to and appropriate for an Industrial Control System (ICS) network and systems. Candidates are required to demonstrate an understanding of the Active Defense approach, ICS-specific attacks and how these attacks inform mitigation strategies. Candidates must also show an understanding of the strategies and fundamental techniques specific to core subjects with an ICS-focus such as network security monitoring (NSM), digital forensics and incident response (DFIR).

 

  • Active Defense Concepts and Application, Detection and Analysis in an ICS environment
  • Discovery and Monitoring in an ICS environment, ICS-focused Digital Forensics, and ICS-focused Incident Response
  • Malware Analysis Techniques, Threat Analysis in an ICS environment, and Threat Intelligence Fundamentals

 

Prerequisites

Students from either an IT or ICS background will do well in this course. Prior to attending the course, it is recommended that you attend SANS ICS410 or equivalent essential cybersecurity classes such as SEC401, or that you have fundamental cybersecurity experience. Students do not need previous ICS experience, but they should be comfortable with ICS terminology and systems such as SCADA, DCS, PLCs, and RTUs, and have an understanding of distinct risks and mitigation approaches in OT environments.

Laptop Requirements

Important! Bring your own system configured according to these instructions!

We ask that you do 5 things to prepare prior to class start. This early preparation will allow you to get the most out of your training. One of those five steps is ensuring that you bring a properly configured system to class. This document details the required system hardware and software configuration for your class. You can also watch a series of short videos on these topics at the following web link https://sansurl.com/sans-setup-videos.

A properly configured system is required to fully participate in this course. If you do not carefully read and follow these instructions, you will likely leave the class unsatisfied because you will not be able to participate in hands-on exercises that are essential to this course. Therefore, we strongly urge you to arrive with a system meeting all the requirements specified for the course.

NOTE: It is critical that students have administrator access to the operating system and all security software installed. Changes may need to be made to personal firewalls and other host-based software in order for the labs to work.

  • 64-bit system
  • Latest version of Windows 10 that can install and run VMware virtualization products described below.

    *if you wish to use a macOS 10.15.x or later, or Linux based OS you will need to have access to a Windows 10 based VM to perform the Windows based labs contained in the courseware

  • Laptop with at least two USB ports
  • Ability to update BIOS configuration settings to enable virtualization (VT) support
  • VMware Workstation Pro 15.5.X+, VMware Player 15.5.X+ or Fusion 11.5+
  • Ability to disable all security software on your laptop, including antivirus and/or firewalls
  • At least 100 GB of hard-drive space
  • At least 8 GB of RAM
  • Local Administrator Access within the host operating system and BIOS settings
  • Wireless Ethernet 802.11 B/G/N/AC

Note: Apple systems using the M1 processor cannot perform the necessary virtualization at this time and cannot be used for this course.

Your course media will now be delivered via download. The media files for class can be large, some in the 40 – 50 GB range. You need to allow plenty of time for the download to complete. Internet connections and speed vary greatly and are dependent on many different factors. Therefore, it is not possible to give an estimate of the length of time it will take to download your materials. Please start your course media downloads as you get the link. You will need your course media immediately on the first day of class. Waiting until the night before the class starts to begin your download has a high probability of failure.

SANS has begun providing printed materials in PDF form. Additionally, certain classes are using an electronic workbook in addition to the PDFs. The number of classes using eWorkbooks will grow quickly. In this new environment, we have found that a second monitor and/or a tablet device can be useful by keeping the class materials visible while the instructor is presenting or while you are working on lab exercises.

Author Statement

“This class was developed from my experiences in the U.S. intelligence community and within the control system community dealing with advanced adversaries targeting industrial control systems. It is the class I wish I would have had available to me while protecting infrastructure against these adversaries. It is exactly what you’ll need to maintain secure and reliable operations in the face of determined threats. ICS515 will empower you to prove that defense is do-able.”

– Robert M. Lee

“The mixture of real-world stories and hands-on training make SANS my number one source for training.” – Ian Trimble, Blue Cross Blue Shield