Hi,
please look here for killreg-variants:
VGREPavast detects some variants as
BV:Malware [Gen] or Win32:Trojan-gen
if you still have the file, please send it in a password-protected ZIP- or RAR-archive to virus@avast.com
Inlcude problem description and ZIP-password in the mailtext
Otherwise, alwil team can't do much about it because the need the file to include it in virus database/signatures
