Bagle.BK and Bagle.BL are Breading at an Enormous Rate
Both worms are designed to spread rapidly via email, and using P2P applications like KaZaA. Panda Software's international support network has already begun to register incidents caused by Bagle.BL in countries such as Holland and the USA, and it is likely, given the characteristics, that the number of computers affected by the worms will start to increase. With this in mind, Panda Software has set the virus alert level at orange.
Panda Software clients that already have TruPrevent Technologies to combat unknown viruses and, have had preventive protection against Bagle.BK and Bagle.BL from the moment they first appeared, as they can detect and block them without having previously identified them.
Bagle.BK and Bagle.BL reach computers in email messages with spoofed sender addresses and with subject fields chosen at random from a list of options.
Possible subjects include: "Delivery by mail" or "Delivery service mail". The message text may include phrases like: "Before use read the help" or "Thanks for use of our software". The message attachments, which actually contain the worms, have variable names, although their extension is always COM, CPL, EXE or SCR.
