Modal Contracts for Component-Based Design

  • Authors:
  • Gregor Goessler;Jean-Baptiste Raclet

  • Affiliations:
  • -;-

  • Venue:
  • SEFM '09 Proceedings of the 2009 Seventh IEEE International Conference on Software Engineering and Formal Methods
  • Year:
  • 2009

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Abstract

In order to increase their stealth, malware commonly use the self-modification property of programs. By doing so, programs can hide their real code so that it is difficult to define a signature for it. But then, what is the meaning of those programs: the obfuscated form, or the hidden one? Furthermore, from a computability perspective, it becomes hard to speak about the program since, its own code varies over time. To cope with these issues, we provide an operational semantics for self-modifying programs and we show that they can be constructively rewritten to a non-modifying program.