A LSTM-Based Anomaly Detection Model for Log Analysis
2021
Security devices produce huge number of logs which are far beyond the processing speed of human beings. This paper introduces an unsupervised approach to detecting anomalous behavior in large scale security logs. We propose a novel feature extracting mechanism and could precisely characterize the features of malicious behaviors. We design a LSTM-based anomaly detection approach and could successfully identify attacks on two widely-used datasets. Our approach outperforms three popular anomaly detection algorithms, one-class SVM, GMM and Principal Components Analysis, in terms of accuracy and efficiency.
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