network behavior analysis
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network behavior analysis


Show me everything on Network Behavior Anomaly Detection (NBAD)

DEFINITION - Network behavior analysis (NBA) is a way to enhance the security of a proprietary network by monitoring traffic and noting unusual actions or departures from normal operation. Conventional intrusion prevention system solutions defend a network's perimeter by using packet inspection, signature detection and real-time blocking. NBA solutions watch what's happening inside the network, aggregating data from many points to support offline analysis.

After establishing a benchmark for normal traffic, the NBA program passively monitors network activity and flags unknown, new or unusual patterns that might indicate the presence of a threat. The program can also monitor and record trends in bandwidth and protocol use. Network behavior analysis is particularly good for spotting new malware and zero day exploits.

A good NBA program can help a network administrator minimize the time and labor involved in locating and resolving problems. It should be used as an enhancement to the protection provided by the network's firewall, intrusion detection system, antivirus software and spyware-detection program.

Learn more about Network Behavior Anomaly Detection (NBAD)
The key technologies in a network perimeter intrusion defense strategy: This article introduces and defines the myriad technologies and the role they play in an intrusion defense strategy.
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Combining NetFlow analysis with security information management systems: When NetFlow is used in conjunction with SIMs and correlated with data from other devices and layers, the combination becomes indispensable.
Security information management finally arrives, thanks to enhanced features: In this tip, Mike Rothman reveals how network-behavior analysis and log management technologies have brought some new life to the SIM market.
IDS: Signature versus anomaly detection: Learn the strengths and weaknesses of signature and anomaly detection, and how the two detection methods complement each other.

LAST UPDATED: 08 Dec 2008

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More resources from around the web:
- Mathew Schwartz outlines how NBA works and the rationale for its deployment.
- Denise Dubie describes real-world applications of NBA.
- ConSentry Networks offers a comprehensive network security solution.





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