Warning! City Sign Invoice
Latest fake invoice email with infected files linked to download alledgedly comes from City Sign & Graphics, though there are multiple website addresses refered to in the fake email. Among these are fleetalliance{dot}co{dot}uk, aipv{dot}co{dot}uk and an apparent US link to unsubscribe. The link to "download company invoice" in fact points to some the aipv site and appears to be a zip file with no doubt infected self running files if you download and open.
As always, never click on any link in an email that turns out of the blue suggesting you have an invoice to view, 9 times of out 10 it'll be yet another attempt to infect your machine.