Submit the sample to symantec here:
http://www.symantec.com/security_response/submitsamples.jsp
Grab the latest updates from here:
http://www.symantec.com/security_response/definitions.jsp
Run a threat analysis scan as well:
How to run the Threat Analysis Scan in Symantec Help (SymHelp)
http://www.symantec.com/docs/TECH215519