We all know the botnets Cutwail, Bagle, Grum and Rustock, responsible for about 75% to 80% of all the spam globally, but now Festi is becoming the fifth botnet in the row of largest botnets.
Festi is gradually growing and is estimated to be responsible for between 3% to 6%, since the beginning of September 2009, of the spam that is distributed worldwide. In terms of volumes this will range between 1.5 tot 3 billions spam messages per day.
The spam messages focus on male enhancement type mails, with .cn domains in use that lead to a Canadian Pharmacy web site, and replica watches, with mostly .com domains in use.

