I am having the same problem. I have a file that is being said to have the same Trojan and i have tested the file with many online scanners , panda, Norton Kapersky. Root kit and many other spy ware scanners. None have detected any thing on this file except avast home after a update about 2 weeks ago.
Problem with Avast Home latest update? Please Advise. (Also i had been running avast pro for the last 2 years with this file in my machine and it did not detect it either.)
I think we have a FALSE POSITIVE here. Sent you a file to test. Let me know.