An algorithm using probabilistic principal component analysis(PPCA)is proposed to reduce the false alarm rate of anomaly detection of industrial networks using traditional principal component analysis(PCA). A PPCA model of industrial network traffic matrix is established by analyzing the causes of false alarm. Parameters in the model are identified by using the iterative variational Bayesian algorithm
and then are used to infer the rank of the PPCA model. Traffic anomaly is finally detected by making judgement on the rank. Simulated attack experiments show that the proposed method decreases false alarm rate by 32% in average
and effectively reduces the false alarm rate of PCA method.
YAN Ruoyu, ZHENG Qinhua. Using cross entropy to detect and classify network anomalous traffic [J]. Journal of Xi'an Jiaotong University, 2010, 44(6):10-15.
LAKHINA A, CROVELLA M, DIOT C. Diagnosing network-wide traffic anomalies[C]∥Proceedings of ACM SIGCOMM 2004: Conference on Computer Communications. New York, USA: ACM, 2004: 219-230.
LAKHINA A, CROVELLA M, DIOT C. Characterization of network-wide anomalies in traffic flows[C]∥Proceedings of the 2004 ACM SIGCOMM Internet Measurement Conference. New York, USA: ACM, 2004: 201-206.
LAKHINA A, CROVELLA M, DIOT C. Mining anomalies using traffic feature distributions [J]. Computer Communication Review, 2005, 35(4): 217-228.
ZHANG Wenzhu, LIU Jia, YUAN Jian, et al. PCA based approach for monitoring the spatial-and-temporal characteristics of P2P traffic [J].Journal of Tsinghua University:Science and Technology, 2010, 50(4): 561-564.
RUBINSTEIN B, NELSON B, HUANG L, et al. Compromising PCA-based anomaly detectors for network-wide traffic, UCB/EECS-2008-73 [R]. Berkeley, USA: UCB, 2009.
QIAN Yekui, CHEN Ming. Poison attack and defense strategies on PCP based anomaly detector[J].Acta Electrionica Sinica, 2011, 39(3):543-548.
CHATZIGIANNAKIS V, PAPAVASSILIOU S, ANDROULIDAKIS G. Improving network anomaly detection effectiveness via an integrated multi-metric-multi-link(M3L)PCA-based approach[J].Security and Communication Networks, 2009, 2(3): 289-304.
BRAUCKHOFF D,SALAMATIAN K, MAY M. Applying PCA for traffic anomaly detection: problems and solutions[C]∥Proceedings of IEEE INFOCOM 2009. Piscataway, NJ, USA: IEEE, 2009: 2866-2870.
ZAIDI Z, HAKAMI S, MOORS T, et al. Detection and identification of anomalies in wireless mesh networks using principal component analysis [J]. Journal of Interconnection Networks, 2009, 10(4): 517-534.
ZAIDI Z R, HAKAMI S, LANDFELDT B, et al. Real-time detection of traffic anomalies in wireless mesh networks [J]. Wireless Networks, 2010,16(6):1675-1689.
BISHOP M, TIPPING E. Probabilistic principal component analysis [J]. Journal of the Royal Statistical Society,1999,61(3):611-622.
VÁCLAVÁ, ANTHONY Q. The variational Bayes method in signal processing[M]. Berlin, Germany: Springer, 2006:57-88.
NICOLAS F, LIAM O M, ERIC C.W32.stuxnet dossier [EB/OL]. [2010-9-30]. http:∥www.symantec. com/connect/blogs/w32stuxnet-dossier.html.
ALEKSANDR M, EUGENE R, DAVID H, et al. Stuxnet under the microscope [EB/OL]. [2010-7-19]. http:∥www. eset.com/resources/white-papers/Stuxnet_Under_the_Microscope.pdf.