Network Behavior Analysis (NBA) System
A network behavior analysis (NBA) system examines network traffic or statistics on network traffic to
identify unusual traffic flows, such as distributed denial of service (DDoS) attacks, certain forms of
malware (e.g., worms, backdoors), and policy violations (e.g., a client system providing network services
to other systems).39 This section provides a detailed discussion of NBA technologies. First, it covers the
major components of the NBA technologies and explains the architectures typically used for deploying
the components. It also examines the security capabilities of the technologies in depth, including the
methodologies they use to identify suspicious activity. The rest of the section discusses the management
capabilities of the technologies, including recommendations for implementation and operation.
Network Behavior Analysis (NBA) SystemA network behavior analysis (NBA) system examines network traffic or statistics on network traffic toidentify unusual traffic flows, such as distributed denial of service (DDoS) attacks, certain forms ofmalware (e.g., worms, backdoors), and policy violations (e.g., a client system providing network servicesto other systems).39 This section provides a detailed discussion of NBA technologies. First, it covers themajor components of the NBA technologies and explains the architectures typically used for deployingthe components. It also examines the security capabilities of the technologies in depth, including themethodologies they use to identify suspicious activity. The rest of the section discusses the managementcapabilities of the technologies, including recommendations for implementation and operation.
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