It’s the year of malware, with the number of new malware threats rising a staggering 48% this year, according to a new report from Sophos. Currently, the Zafi-D worm is taking the number one spot in the virus chart, with Netsky-P at second place. Sober-Z is at number three.

The 'Sophos Security Threat Management Report 2005' reveals that on average, one in every 44 emails was viral during 2005. This rose to one in twelve during major outbreaks, while 15,907 new malware threats were identified.
Seemingly, the increasing amount of malware floating around causing headaches for people stems from the escalating interest in authoring Trojans, worms and viruses for the pursuit of criminal gain.