And in an aside, youngest daughter's laptop got hit at around midnight on 7/7/15 with a dodgy flash link from the local 17-year old "computer expert".
She's lucky - it wasn't cryptolocker but it is probably going to require a wipe as we're up to 9 threats and it hasn't hit 50% (from a CD-boot). Not convinced that given the fallout this week there is any other way of "cleaning" it.