I just received yesterday an unusual e-mail in my Bulk folder. It contained a .cmd file attached. I downloaded it and Norton and NOD32 said nothing. I sent it immediately to F-Prot and they replied it is an important malware. Dr.Web and Kaspersky also and they add it in one hour. NOD32 still doesn't detect it. They say they're adding samples on a priority-base and the most important first. I bet this e-mail was received by many other users and some eventually run it and get infected. Hope ESET will react fast to it.