Network Intrusion Detection Based on Semi-supervised Variational Auto-Encoder
- 2.7k Downloads
Network intrusion detection systems (NIDSs) based on machine learning have been attracting much attention for its potential ability to detect unknown attacks that are hard for signature-based NIDSs to detect. However, acquisition of a large amount of labeled data that general supervised learning methods need is prohibitively expensive, and this results in making it hard for learning-based NIDS to become widespread in practical use.
In this paper, we tackle this issue by introducing semi-supervised learning, and propose a novel detection method that is realized by means of classification with the latent variable, which represents the causes underlying the traffic we observe. Our proposed model is based on Variational Auto-Encoder, unsupervised deep neural network, and its strength is a scalability to the amount of training data. We demonstrate that our proposed method can make the detection accuracy of attack dramatically improve by simply increasing the amount of unlabeled data, and, in terms of the false negative rate, it outperforms the previous work based on semi-supervised learning method, Laplacian regularized least squares which has cubic complexity in the number of training data records and is too inefficient to leverage a huge amount of unlabeled data.
This work was supported in part by JSPS KAKENHI Grant Numbers 17K00178 and 16K00183.
- 1.An, J., Cho, S.: Variational Autoencoder based anomaly Detection using Reconstruction Probability (2015). http://dm.snu.ac.kr/static/docs/TR/SNUDM-TR-2015-03.pdf
- 4.Gu, Y., McCallum, A., Towsley, D.: Detecting anomalies in network traffic using maximum entropy estimation. In: Proceedings of the 5th ACM SIGCOMM Conference on Internet Measurement, pp. 32–32. USENIX Association, October 2005Google Scholar
- 5.Kishimoto, K., Yamaki, H., Takakura, H.: Improving performance of anomaly-based ids by combining multiple classifiers. In: 2011 IEEE/IPSJ 11th International Symposium on Applications and the Internet (SAINT), pp. 366–371. IEEE, July 2011Google Scholar
- 6.Kingma, D.P., Welling, M.: Auto-encoding variational bayes. arXiv preprint arXiv:1312.6114 (2013)
- 7.Kingma, D.P., Mohamed, S., Rezende, D.J., Welling, M.: Semi-supervised learning with deep generative models. In: Advances in Neural Information Processing Systems, pp. 3581–3589 (2014)Google Scholar
- 8.Lakhina, A., Crovella, M., Diot, C.: Mining anomalies using traffic feature distributions. In: ACM SIGCOMM Computer Communication Review, vol. 35, no. 4, pp. 217–228. ACM, August 2005Google Scholar
- 9.Maale, L., Snderby, C.K., Snderby, S.K., Winther, O.: Improving semi-supervised learning with auxiliary deep generative models. In: NIPS Workshop on Advances in Approximate Bayesian Inference (2015)Google Scholar
- 10.Nawata, S., Uchida, M., Gu, Y., Tsuru, M., Oie, Y.: Unsupervised ensemble anomaly detection through time-periodical packet sampling. In: INFOCOM IEEE Conference on Computer Communications Workshops, pp. 1–6. IEEE, March 2010Google Scholar
- 11.Rezende, D.J., Mohamed, S., Wierstra, D.: Stochastic backpropagation and approximate inference in deep generative models. arXiv preprint arXiv:1401.4082 (2014)
- 12.Song, J., Takakura, H., Okabe, Y., Eto, M., Inoue, D., Nakao, K.: Statistical analysis of honeypot data and building of Kyoto 2006+ dataset for NIDS evaluation. In: Proceedings of the First Workshop on Building Analysis Datasets and Gathering Experience Returns for Security, pp. 29–36. ACM, April 2011Google Scholar
- 13.Symons, C.T., Beaver, J.M.: Nonparametric semi-supervised learning for network intrusion detection: combining performance improvements with realistic in-situ training. In: Proceedings of the 5th ACM Workshop on Security and Artificial Intelligence, pp. 49–58. ACM, October 2012Google Scholar
- 14.Tavallaee, M., Bagheri, E., Lu, W., Ghorbani, A.A.: A detailed analysis of the KDD CUP 99 data set. In: IEEE Symposium on Computational Intelligence for Security and Defense Applications, CISDA 2009, pp. 1–6. IEEE, July 2009Google Scholar
- 15.Valpola, H.: From neural PCA to deep unsupervised learning. Adv. Independent Component Anal. Learn. Mach. 143–171 (2015)Google Scholar