If you have a file you think is infected but the scan engine does not detect it or cannot clean it, Trend Micro encourages you to send the suspect file to us. For more information, refer to the following site:
http://subwiz.trendmicro.com/subwiz
Please include in the message text a brief description of the symptoms you are experiencing. The team of antivirus engineers will analyze the file to identify and characterize any virus(es) it may contain, usually the same day it is received.
You can also send an email to: virusresponse@trendmicro.com, and specify "Phish or Disease Vector" as the Subject.