ENISA recently launched its latest Position Paper, "Botnets - The Silent Threat", a 12-page paper identifying roles and structures of criminal
organizations for creating and controlling botnets, and trends in this type of cyber crime as well as online tools to identify and counter malicious code. ENISA points out that browser exploits account for more than 60% of all infections, email attachments for 13%, operating system exploits for 11%, and downloaded Internet files for 9%. It also emphasizes that the main problem is uninformed users. ENISA, thus, calls for "a more coordinated, cross country cooperation among multi-national law enforcement agencies, Internet Service Providers (ISPs) and software vendors" to combat botnets, and further adds that education of the everyday user is a key measure.
For further information, read ENISA's press release or access the full ENISA Position Paper.