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Learning and classification of malware behavior

: Rieck, K.; Holz, T.; Düssel, P.; Willems, C.; Laskov, P.


Zamboni, D.:
Detection of intrusions and malware, and vulnerability assessment. 5th international conference, DIMVA 2008 : Paris, France, July 10-11, 2008; Proceedings
Berlin: Springer, 2008 (Lecture Notes in Computer Science 5137)
ISBN: 3-540-70541-4
ISBN: 978-3-540-70541-3
ISSN: 0302-9743
International Conference on Detection of Intrusions and Malware, and Vulnerability Assessment (DIMVA) <5, 2008, Paris>
Fraunhofer FIRST ()

Malicious software in form of Internet worms, computer viruses, and Trojan horses poses a major threat to the security of networked systems. The diversity and amount of its variants severely undermine the effectiveness of classical signature-based detection. Yet variants of malware families share typical behavioral patterns reflecting its origin and purpose. We aim to exploit these shared patterns for classification of malware and propose a method for learning and discrimination of malware behavior. Our method proceeds in three stages: (a) behavior of collected malware is monitored in a sandbox environment, (b) based on a corpus of malware labeled by an anti-virus scanner a malware behavior classifier is trained using learning techniques and (c) discriminative features of the behavior models are ranked for explanation of classification decisions. Experiments with different heterogeneous test data collected over several months using honeypots demonstrate the effectiveness of our method, especially in detecting novel instances of malware families previously not recognized by commercial anti-virus software.