C2type

C2type is a classification system used in the field of cybersecurity to categorize the various types of adversary tactics, techniques, and procedures (TTPs) observed in cyber attacks. The system is designed to provide a structured and consistent way to describe and analyze malicious activities, aiding in the development of defensive strategies and incident response plans.

The C2type classification system is typically organized into several main categories, each representing a different stage or aspect of an attack. These categories may include:

Command and Control (C2): This category encompasses the methods and techniques used by attackers to communicate with compromised systems, issue commands, and exfiltrate data. Examples include using domain generation algorithms (DGAs), fast flux networks, and standard protocols like HTTP or DNS.

Lateral Movement: This category describes the techniques used by attackers to move laterally within a network, often after initially compromising a system. Methods may include pass-the-hash attacks, credential dumping, and the use of legitimate administrative tools.

Persistence: This category includes techniques that attackers use to maintain access to a compromised system even after a reboot or other interruptions. Examples are creating scheduled tasks, modifying the registry, and establishing backdoors.

Exfiltration: This category covers the methods used by attackers to steal data from a compromised system. Techniques may include encrypting data before transfer, using steganography, and exploiting vulnerabilities in data transfer protocols.

The C2type classification system is not a standard and can vary depending on the organization or community using it. However, it generally aims to provide a common language and framework for cybersecurity professionals to discuss and understand complex attack scenarios. By categorizing TTPs in this way, organizations can better identify patterns, develop targeted defenses, and improve their overall cybersecurity posture.