Should have added: Windows XP Professional ver 5.1 build 2600.xpsp_sp2_rtm.040803-2158 Service Pack 2MacAfee Virusscan Enterprise failed to pick this up.
It's smart. I'll give it that. It delivers the Fake Hrad disk error Windows Security Alert.
I know what I'm now doing all evening.
As the rolling adverts have been removed, this rules them out as the source.