Until now Netsky has remained in the number one spot, demonstrating as SoftScan pointed out in February that users need to check and clean their machines, since the high percentage rate is not down to new infections. However financial motivation has once again proved too much temptation for hackers and phishing is now in the number spot.
Viruses accounted for 0.55% of all email traffic in April. The top five virus families for April were:
1 phishing 42.60%
2 netsky 28.49%
3 mytob 13.24%
4 html.iframe 5.00%
5 nyrem 4.57%
http://www.net4now.com/isp_news/news_article.asp?News_ID=3561