And tell them you deverve a bonus for findin it!!
Actually a lot of these malware things get introduced through users downloading and installing stuff they shouldn't be
So she might not want to draw attention to herself or how it got there.
They usually get bundled in with crap like browser toolbars and extensions, games, fonts, emotions and other trivial software you think will be harmless.
Other times they can propagate to insecure machines via a weakness in the browser or computer O/S when visiting a comprised site, or when used on an unprotected/infected network (like an internet cafe) so in those cases its not so much her fault.
