A command-and-control server (C&C server) is a computer that issues commands to and receives reports from remote devices, such as computers infected with malware. The term is most often used in reference to botnets, in which the C&C server issues commands to a group of infected computers, known as bots, which carry out attacks or perform other malicious tasks.
The term "command-and-control server" can also refer to the server component of a remote access tool (RAT), which is a type of malware that allows an attacker to remotely control an infected computer. The RAT server component typically includes a C&C interface that the attacker can use to issue commands to the RAT client, which is the malware component installed on the remote computer.
What is C2 command and control?
In computer networking, C2 or Command and Control is a type of communication between a malicious actor and the computers they have compromised. This communication is used to issue commands to the compromised computers and to exfiltrate data from them.
C2 traffic is typically encrypted and uses a variety of protocols, making it difficult to detect and block. Some common C2 protocols include DNS, HTTP, and HTTPS.
Detection of C2 traffic is a key part of network security, as it can be used to identify compromised systems and halt malicious activity.
What are C2 servers?
A C2 server is a type of server that is used to control and manage a network of computers. It is typically used in enterprise networks, where it can be used to manage large numbers of computers and devices.
C2 servers are typically used to manage network security, to provide remote access to network resources, and to monitor and manage network traffic. What is CNC DDOS? CNC DDOS is a type of distributed denial of service (DDoS) attack in which the attacker uses a network of computers to flood the target with requests, overwhelming it and causing it to crash.
What is a C2 infrastructure?
A C2 infrastructure is a system that enables an attacker to remotely control a compromised computer. The attacker can use the C2 infrastructure to issue commands to the compromised computer, which the computer will then carry out. The C2 infrastructure can also be used to exfiltrate data from the compromised computer.
A C2 infrastructure typically consists of a Command and Control (C2) server and a client component that is installed on the compromised computer. The C2 server is used to issue commands to the client, which then carries out the commands. The C2 server can also be used to exfiltrate data from the compromised computer.
A C2 infrastructure can be used for a variety of purposes, including:
- carrying out attacks against other computers
- stealing sensitive data
A C2 infrastructure can be difficult to detect, as it can be used to issue commands that are not obviously malicious. For example, an attacker could use a C2 infrastructure to issue commands that appear to be benign, such as opening a web browser or checking email. However, these seemingly benign commands can be used to carry out malicious actions, such as downloading malware or exfiltrating data.
To defend against C2 infrastructure, it is important to implement security measures that can detect and block suspicious network traffic. For example, firewalls can be used to block traffic from known C2 servers, and intrusion detection systems can be used to detect
What is C2 traffic?
C2 traffic is traffic that is used to control and manage a remote system. This traffic is typically used by attackers to gain control of a system or to exfiltrate data. C2 traffic can be encrypted and often uses common protocols such as HTTP or DNS.