An Introduction to the Diamond Model of Intrusion Analysis by it's Co-Author Sergio Caltagirone

Introduction to the Diamond Model of Intrusion Analysis

Overview of the Webinar

• This webinar serves as an introductory examination of the Diamond Model, a paper authored by Sergio Kelta Geroni over a decade ago.

• A reunion webinar featuring Chris, Andy, and Sergio is planned for later this year to discuss stories related to the Diamond Model.

Upcoming Webinars and Resources

• An upcoming webinar from Thread Intel Academy will cover the basics of cyber threat intelligence in a one-hour session. This is aimed at those unfamiliar with its value.

• The current webinar will be recorded and made available on YouTube and via email to registered participants. Sharing is encouraged.

Speaker Background

Sergio Kelta Geroni's Experience

• Sergio Kelta Geroni introduces himself as the president of Threat Intelligence Academy, with extensive experience in threat intelligence including roles at Dragos and Microsoft.

• He emphasizes his transition from industry work to teaching due to burnout, aiming to help others advance their careers faster than he did.

Purpose of the Diamond Model

Need for New Models in Cybersecurity

• The speaker questions why another model is necessary given the abundance already present in cybersecurity, expressing pride in contributing but also concern about adding complexity.

• The goal of the Diamond Model is to provide clarity and organization in understanding intrusion analysis rather than complicating it further.

Understanding Threat Intelligence

Nature of Threat Intelligence Work

• Contrary to popular belief that intelligence work involves dark rooms filled with computers, real threat intelligence relies heavily on communication among people discussing findings and observations.

• Effective threat intelligence combines data synthesis and correlation; understanding how conclusions are reached is crucial for evaluating their validity.

Clarifying Misconceptions About the Diamond Model

What the Diamond Model Is Not

• The model should not be mistaken for an attribution model; it does not directly achieve attribution but aids in organizing data relevant for such analyses.

• It simplifies complex information rather than complicating it further; its mathematical components aim to create a universal language across different languages and cultures involved in cybersecurity analysis.

Practical Application of the Diamond Model

Features and Functionality

• The Diamond Model represents key features studied within intrusion analysis, akin to scientific models like water cycles or meteorological charts that depict data differently yet represent similar concepts.

• Its primary goal is enhancing hunting capabilities by guiding analysts on which questions to ask regarding threats or incidents they encounter during investigations.

Utilizing the Diamond Model Throughout Intelligence Cycle

Applications Across Different Phases

• Analysts can use the model throughout various phases: translating requirements into analyst-friendly terms, identifying collection gaps, and improving communication through shared lexicon based on diamond features.

• For example: determining what malware was used or what methodologies were employed during an attack can be clarified using this framework.

• It helps streamline dissemination processes by reducing communication errors among team members who share a common understanding derived from using this model.

Core Components of the Diamond Model

Four Interconnected Features

• At its core, the diamond consists of four interconnected features: adversary, capability (tools), infrastructure (medium), and victim—each essential for analyzing intrusions effectively.

• These components must exist together; without any one element, no intrusion can occur.

• Analysts can navigate through these nodes like a map when investigating incidents or threats encountered.

Advanced Considerations

Meta Features

• Additional meta features include timestamps indicating when events occurred during attacks, phases (beginning/middle/end), results (data theft/ransomware installation), directionality (towards/away from victim), resources utilized (malware/human operators), and methodology employed.

• Understanding these aspects allows analysts deeper insights into attack patterns while providing context around each incident analyzed.

This structured approach provides clarity on key points discussed throughout this informative session on utilizing the Diamond Model effectively within cybersecurity contexts while addressing common misconceptions surrounding its application.

Understanding Social-Political and Technology Relationships in Cybersecurity

The Nature of Relationships in Cybercrime

• The social-political relationship involves connections between adversaries and victims, which can be direct or indirect. Victims may be categorized as "victims of opportunity" or "victims of intent."

• There is always a relationship between victims and adversaries, prompting questions about the nature of these relationships within the context of cybercrime.

Technology Features and Their Implications

• A technology relationship exists between infrastructure and capability, ranging from simple protocols like HTTP to complex systems requiring multimodal features.

• An example illustrates how malicious URLs can be embedded in comments on legitimate platforms, highlighting the need for compatible technologies to facilitate such attacks.

Mitigating Cyber Threats through the Diamond Model

Vulnerabilities and Prevention Strategies

• The diamond model focuses on identifying vulnerabilities in adversary operations to mitigate threats effectively.

• Questions around victimization are central to both traditional criminology and cyber criminology, emphasizing prevention strategies like avoiding suspicious links.

Pivoting for Insightful Analysis

• Pivoting is a key element of the diamond model that allows analysts to explore data points for deeper insights into potential threats.

• By analyzing malware discovered by victims, analysts can trace command-and-control domains back to their origins, enhancing threat detection capabilities.

Evolving Threat Hunting Techniques

From Detection to Proactive Hunting

• Initial efforts focused on tracking known threats; however, as understanding evolved, so did methods for uncovering unknown threats through proactive hunting techniques.

• The diamond model was developed through trial and error over several years before its formal publication in 2013.

Centered Approaches for Effective Threat Hunting

• Centered approaches allow analysts to focus on specific features within the diamond model to identify new threats based on recent network activity.

Integrating Models: Diamond Model, Kill Chain, and ATT&CK Framework

Complementary Framework Usage

• Analysts often debate the necessity of multiple models; however, the diamond model complements both the kill chain and ATT&CK frameworks rather than competing with them.

Phases of Activity Analysis

• Each framework outlines phases of activity that can be analyzed together. For instance, recognizing how an attack progresses from reconnaissance through delivery enhances understanding.

Attribution Challenges in Cyber Intelligence

Understanding Attribution vs. Evidence

• The diamond model does not serve as an attribution tool but rather helps gather evidence that may lead toward attribution hypotheses.

Grouping Activities for Better Insights

• Analysts group similar activities based on shared characteristics (e.g., common name servers), which aids in identifying patterns without directly attributing actions to specific actors.

This structured approach provides a comprehensive overview while allowing easy navigation through timestamps linked directly to relevant sections.

Understanding the Diamond Model in Cyber Threat Intelligence

Overview of the Diamond Model

• The speaker introduces the diamond model, emphasizing its utility in understanding and analyzing cyber threats. They mention that this session will cover basic concepts due to time constraints.

Practical Applications and Examples

• A participant asks for practical examples of using the diamond model. The speaker notes they provide these examples in their classes but did not include them in this webinar.

• The speaker discusses how the diamond model can be used to organize reports, suggesting sections on infrastructure, capabilities, and victims based on audience needs.

Recommendations for Threat Intelligence Platforms

• When asked about investing in threat intelligence platforms (TIP), the speaker explains that most major TIPs incorporate elements of the diamond model, although terminology may vary across platforms.

• The speaker highlights that both open-source and commercial TIPs allow users to define capabilities and infrastructure while linking these features together for analysis.

Future Threat Analysis Using the Diamond Model

• The speaker confirms that the diamond model can represent past incidents and predict future threats by creating attack graphs as outlined in their paper.

Learning Pivoting Methodology

• For those interested in learning pivoting methodology, the speaker mentions they teach it in their class and provide numerous examples within their published materials.

Differences Between Capabilities and Infrastructure

• A question arises regarding distinguishing between capabilities and infrastructure. The speaker clarifies that context is key; something may fit into both categories depending on its use by adversaries.

• Examples are provided: IP addresses are classified as infrastructure while malware communicating with them represents capability. Remote Desktop Protocol (RDP) can also serve as both depending on context.

Conclusion of Webinar

• As the webinar concludes, participants are encouraged to reach out with further questions via email or through an academy site for additional resources or clarification.