Fast & Furious: Modelling Malware Detection as Evolving Data Streams

• URL: http://arxiv.org/abs/2205.12311v1
• Date: Tue, 24 May 2022 18:43:40 GMT
• Title: Fast & Furious: Modelling Malware Detection as Evolving Data Streams
• Authors: Fabr\'icio Ceschin, Marcus Botacin, Heitor Murilo Gomes, Felipe Pinag\'e, Luiz S. Oliveira, Andr\'e Gr\'egio
• Abstract summary: Malware is a major threat to computer systems and imposes many challenges to cyber security. In this work, we evaluate the impact of concept drift on malware classifiers for two Android datasets.
• Score: 6.6892028759947175
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Malware is a major threat to computer systems and imposes many challenges to cyber security. Targeted threats, such as ransomware, cause millions of dollars in losses every year. The constant increase of malware infections has been motivating popular antiviruses (AVs) to develop dedicated detection strategies, which include meticulously crafted machine learning (ML) pipelines. However, malware developers unceasingly change their samples features to bypass detection. This constant evolution of malware samples causes changes to the data distribution (i.e., concept drifts) that directly affect ML model detection rates. In this work, we evaluate the impact of concept drift on malware classifiers for two Android datasets: DREBIN (~130K apps) and AndroZoo (~350K apps). Android is a ubiquitous operating system for smartphones, which stimulates attackers to regularly create and update malware to the platform. We conducted a longitudinal evaluation by (i) classifying malware samples collected over nine years (2009-2018), (ii) reviewing concept drift detection algorithms to attest its pervasiveness, (iii) comparing distinct ML approaches to mitigate the issue, and (iv) proposing an ML data stream pipeline that outperformed literature approaches. As a result, we observed that updating every component of the pipeline in response to concept drifts allows the classification model to achieve increasing detection rates as the data representation (extracted features) is updated. Furthermore, we discuss the impact of the changes on the classification models by comparing the variations in the extracted features.

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