@TechReport{lisabeth-TR1807,
  author = {Lorenzo Cavallaro and Andrea Lanzi and Luca Mayer and Mattia
  Monga},
  title =  {{LISABETH: Automated Content-Based Signatures Generator for
  Zero-day Polymorphic Worms}},
  institution =  {{Universit\`a degli Studi di Milano}},
  year =     2007,
  type =     {{Technical Report RT~$18$-$07$}}}