Bagle.M/N/O variants discovered

Three new variants of the Bagle worm have been discovered over the weekend: Bagle.M, Bagle.N, and Bagle.O. Unlike its predecessors, Bagle.N includes a polymorphic routine infecting PE_EXE files on affected systems. Bagle.N also includes a much more extensive list of security processes it attempts to shutdown. Bagle.N may arrive as a PIF, EXE, ZIP or RAR attachment. When sent as a ZIP or RAR, the file will be password protected. The password is included in an image file also attached which may display inline, depending on the mail reader.