Zip the file with a password.
Send the sample and the password in the message body to newvirus@kaspersky.com. The recipients of the newvirus@kaspersky.com address are analysts only responsible for virus signature records and do not answer any requests for support.
Additional Comments
The same procedure should be used when the AntiVirus engine in MDaemon detects a file as a virus but it is not one. Again, be sure to zip and password protect the file.