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Anomaly Detection Method Based on HMMs Using System Call and Call Stack Information

  • Cheng Zhang
  • Qinke Peng
Conference paper
  • 219 Downloads
Part of the Lecture Notes in Computer Science book series (LNCS, volume 3802)

Abstract

Anomaly detection has emerged as an important approach to computer security. In this paper, a new anomaly detection method based on Hidden Markov Models (HMMs) is proposed to detect intrusions. Both system calls and return addresses from the call stack of the program are extracted dynamically to train and test HMMs. The states of the models are associated with the system calls and the observation symbols are associated with the sequences of return addresses from the call stack. Because the states of HMMs are observable, the models can be trained with a simple method which requires less computation time than the classical Baum-Welch method. Experiments show that our method reveals better detection performance than traditional HMMs based approaches.

Keywords

Hide Markov Model Intrusion Detection Anomaly Detection System Call Markov Chain Model 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2005

Authors and Affiliations

  • Cheng Zhang
    • 1
  • Qinke Peng
    • 1
  1. 1.State Key Laboratory for Manufacturing Systems and School of Electronic and Information EngineeringXi’an Jiaotong UniversityXi’anChina

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