This book constitutes the refereed proceedings of the 7th International Conference on Detection of Intrusions and Malware, and Vulnerability Assessment, DIMVA 2010, held in Bonn, Germany, in July 2010.The 12 revised full papers presented together with two extended abstracts were carefully selected from 34 initial submissions. The papers are organized in topical sections on host security, trends, vulnerabilities, intrusion detection and web security.