A probabilistic method for detecting anomalous program behavior

Abstract

In this paper, we, as well as Eskin, Lee, Stolfo propose a method of prediction model. In their method, the program was characterized with both the order and the kind of system calls. We focus on a non-sequential feature of system calls given from a program. We apply a Bayesian network to predicting the N-th system call from the sequence of system calls of the length N - 1. In addition, we show that a correlation between several kinds of system calls can be expressed by using our method, and can characterize a program behavior. © Springer-Verlag Berlin Heidelberg 2004.