If it is in your chest, right click on it to submit it to avast.
If not you can send it here: virus (at) avast (dot) com
asyn
For the future, email sample submissions should be in a password protected zip file with the password in the body of the email and Undetected Malware in the subject of the email.
If the member has used virustotal (as in this case), the results URL should also be included in the body of the email.
