Synthetic Datasets for Program Similarity Research

Program similarity has become an increasingly popular area of research with various security applications such as plagiarism detection, author identification, and malware analysis. However, program similarity research faces a few unique dataset quality problems in evaluating the effectiveness of novel approaches. First, few high-quality datasets for binary program similarity exist and are widely used in this domain. Second, there are potentially many different, disparate definitions of what makes one program similar to another and in many cases there is often a large semantic gap between the labels provided by a dataset and any useful notion of behavioral or semantic similarity. In this paper, we present HELIX - a framework for generating large, synthetic program similarity datasets. We also introduce Blind HELIX, a tool built on top of HELIX for extracting HELIX components from library code automatically using program slicing. We evaluate HELIX and Blind HELIX by comparing the performance of program similarity tools on a HELIX dataset to a hand-crafted dataset built from multiple, disparate notions of program similarity. Using Blind HELIX, we show that HELIX can generate realistic and useful datasets of virtually infinite size for program similarity research with ground truth labels that embody practical notions of program similarity. Finally, we discuss the results and reason about relative tool ranking.