摘要: In software engineering contexts may be compared for similarity in order to detect duplicate code that indicates poor design, and reconstruct evolution history. Malicious software, being nothing other than a particular type of can also simi- larity commonalities This paper provides brief introduction the issue measuring between malicious programs, how is known occur area. It then uses this review try draw lines connect research (e.g., on "clone detection" ) problems anti- malware research.