C2 infrastructure
Also written: C2, Command and Control
Command and control servers used by malware to communicate with attackers. Servers attackers use to control malware.
C2 infrastructure refers to the servers that attackers use to send commands to and receive data from malware they have deployed on a victim's computer or network. Think of it like a remote control for the malicious software.
For example, if a hacker infects a computer with a virus, they might use C2 infrastructure to tell the virus to steal specific files, encrypt the hard drive for ransom, or use the computer to attack other systems. This infrastructure is crucial for managing and directing cyberattacks.
Command and control (C2) infrastructure comprises the systems and networks that attackers use to maintain communication with compromised machines. This typically involves a set of servers that act as a central hub, receiving instructions from the attacker and relaying them to the malware, while also collecting and exfiltrating data from the victim. The robustness and stealth of C2 infrastructure are key to the success and longevity of many cyberattacks, enabling dynamic control and adaptation of malware behavior.
This term is relevant as AI models like ChatGPT are being used by malicious actors to develop and deploy sophisticated malware. OpenAI's action highlights the need to monitor and block the use of AI tools for creating C2 infrastructure, which is essential for executing cyberattacks.
- Cyber Operation: Russian-speaking malware toolingOpenAI · OpenAI News ·
- OpenAI ChatGPT
- OpenAI's safety systems are designed to detect and block the use of its models, such as ChatGPT, for developing malicious tools, including those related to C2 infrastructure.
- Infrastructure as a Service (IaaS)
- Cloud computing services that provide virtua
- Content Delivery Network (CDN)
- A geographically distributed network of proxy se
- Honeypot
- A decoy computer system designed to attract and trap cyberattackers, t
The term 'command and control' in the context of malware and cyber warfare has been used for decades, evolving with technology. The concept refers to the hierarchical structure of directing operations, applied here to the communication channels between attackers and their malicious software.
While you cannot directly interact with C2 infrastructure for safety reasons, you can explore cybersecurity resources. Many security websites offer simulations or educational games where you can learn about how malware operates and how network defenses work to detect and block such communications.
The Playbook: reusable how-tos, prompts, configs and tips pulled out of the news.
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Questions people ask
- What is the main purpose of C2 infrastructure?
- The main purpose is to allow attackers to remotely control malware they have deployed on compromised systems, enabling them to issue commands and receive data.
- How do attackers hide their C2 infrastructure?
- Attackers use various techniques to hide C2 infrastructure, such as using anonymizing services, encrypting traffic, or disguising C2 communications as legitimate web traffic.
First seen on Subvolts Oct 1, 2025. Updated Sep 15, 2026. Written by an AI model from the items above and reviewed against them weekly; report an error.