The first day of spring brought us five new Bagle variants within a few hours. We detect them as Email-Worm.win32.Bagle.bb-.bf and antivirus database updates with protection against all of them are available.
We are analysing the worms in detail and will keep you posted if anything interesting shows up. We suspect that the worms have been seeded via a spammer mailing. a spam mailing. A full description will be available once the analysis is complete.