This book constitutes the refereed proceedings of the 9th International Symposium on Recent Advances in Intrusion Detection, RAID 2006, held in Hamburg, Germany in September 2006. The 16 revised full papers presented were carefully reviewed and selected from 93 submissions. The papers are organized in topical sections on anomaly detection, attacks, system evaluation and threat assessment, malware collection and analysis, anomaly- and specification-based detection, and network intrusion detection.

On behalf of the Program Committee, it is my pleasure to present the p- ceedings of the 5th GI International Conference on Detection of Intrusions and Malware, and Vulnerability Assessment (DIMVA). Every year since 2004 DIMVA has brought together leading researchers and practitionersfromacademia, governmentandindustrytopresentanddiscussnovel security research. DIMVA is organized by the Security Intrusion Detection and Response(SIDAR)specialinterestgroupoftheGermanInformaticsSociety(GI). The DIMVA 2008 Program Committee received 42 submissions from 16 d- ferent countries, and from...