:o I found that A trojan virus called TROJ_SANTOSA.A,
was not detected by Avast! home edition
not even when i pointed out the file found by capersky and trend micro house call.
so avast! did not put it in the safe ???
:
Updating the patern files every day is not an assurance for a safe system 
but using diferent virus scanning machines is :-\
Please send the infected file to virus@avast.com
Santosa should be picked up by Avast since VPS 0427-0, 29.06.2004 but this may be a new variant.
VPS history