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Macros Finder: Do You Remember LOVELETTER?

  • Hiroya Miura
  • Mamoru Mimura
  • Hidema Tanaka
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 11125)

Abstract

In recent years, the number of targeted email attacks which use Microsoft (MS) document files has been increasing. In particular, damage by malicious macros has spread in many organizations. Relevant work has proposed a method of malicious MS document files detection. To the best of our knowledge, however, no method of detecting malicious macros exists. Hence, we proposed a method which detects malicious macros themselves using machine learning. First, the proposed method creates corpuses from macros. Our method removes trivial words in the corpus. It becomes easy for the corpuses to classify malicious macros exactly. Second, Doc2Vec represents feature vectors from the corpuses. Malicious macros contain the context. Therefore, the feature vectors of Doc2Vec are classified with high accuracy. Machine learning models (Support Vector Machine, Random Forest and Multi Layer Perceptron) are trained, inputting the feature vectors and the labels. Finally, the trained models predict test feature vectors as malicious macros or benign macros. Evaluations show that the proposed method can obtain a high F-measure (0.93).

Keywords

Macro Machine learning Natural language processing technique Bag-of-Words Doc2Vec 

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Copyright information

© Springer Nature Switzerland AG 2018

Authors and Affiliations

  1. 1.National Defense AcademyYokosukaJapan

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