Annotation: An analysis of existing methods that provide the detection of evasion attacks in the machine learning systems is presented. An experimental comparison of these methods has been performed. The Uncertainty method is the most universal one, but its accuracy in detecting SGM, MS, BA evasion attacks is lower than that of other methods, and it is difficult to determine such values of the uncertainty boundary for adversarial samples that would allow more accurate detection of evasions. A new hybrid method has been proposed and discussed, which is a two-stage verification of input data, supplemented by input data pre-processing. In the proposed method, the threshold of uncertainty for adversarial samples has become distinct and quickly computable. The hybrid method allows detecting OOD attacks with 80% accuracy, and SGM, MS, BA attacks with 93% accuracy.

Keywords: evasion attacks, evasion attack detection, hybrid method, machine learning, adversarial samples, ODIN, Uncertainty.