Unable to Detected suspicious virus

How do i summit a virus sample that Avast does not detected

http://virusscan.jotti.org/en/scanresult/12e79d99759cb510c8b816d0d48f6f27a7424f98

http://www.virustotal.com/analisis/6f448cf646db5f482c2b5f105f8bd94d83a8ac13f91abad5210a16aa6f3b6762-1262144961

Send the sample in a password-protected zip to virus@avast.com with Undetected Malware in subject and the password mentioned in the email body.