Conference Paper

A Study of Malcode-Bearing Documents.

DOI: 10.1007/978-3-540-73614-1_14 Conference: Detection of Intrusions and Malware, and Vulnerability Assessment, 4th International Conference, DIMVA 2007, Lucerne, Switzerland, July 12-13, 2007, Proceedings
Source: DBLP

ABSTRACT By exploiting the object-oriented dynamic composability of modern document applications and formats, malcode hidden in otherwise inconspicuous documents can reach third-party applications that may harbor exploitable vulnerabilities otherwise unreachable by network-level service attacks. Such attacks can be very selective and dicult to detect compared to the typical network worm threat, owing to the complex- ity of these applications and data formats, as well as the multitude of document-exchange vectors. As a case study, this paper focuses on Mi- crosoft Word documents as malcode carriers. We investigate the pos- sibility of detecting embedded malcode in Word documents using two techniques: static content analysis using statistical models of typical doc- ument content, and run-time dynamic tests on diverse platforms. The experiments demonstrate these approaches can not only detect known malware, but also most zero-day attacks. We identify several problems with both approaches, representing both challenges in addressing the problem and opportunities for future research.

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