Link: Microsoft Security Intelligence Report v7 (Jan-Jul 09)

Microsoft has recently updated their Security Intelligence Report that tries to identify the latest and greatest of malicious trends.
A quote from their malware blog.
"In this edition we provide an in-depth review of malicious and potentially unwanted software, software exploits, security breaches, software vulnerabilities (both Microsoft and third party) around the world as well as providing detailed views of a number of countries. We review malware distribution sites by country, discuss phishing and spam trends and geographic distribution, details on vulnerability disclosure practices, differences in threat distribution between consumers and enterprise and we also provide guidance for IT professionals and business decision makers based on this information."
Check the report out here (LINK).