Deep transductive transfer learning framework for zero-day attack detection

Zero-day attack detection in Intrusion Detection Systems is challenging due to the lack of labeled instances. This paper applies manifold alignment approach of TL that transforms the source and target domains into a common latent space to evade the problem of different feature spaces and different marginal probability distributions among the domains. On the transformed space, a method is proposed for generating target soft labels to compensate for the lack of labeled target instances by applying the cluster correspondence procedures. On top of this, DNN is applied to build a framework for the detection of zero-day attacks. Authors have conducted several experiments using NSL-KDD and CIDD datasets to evaluate the performance of the proposed framework. From the experimental results it is evident that the proposed framework could successfully detect zero-day attacks on unseen data.