Just saw my first BA e-Ticket e-mail spam with dodgy .zip file attached. I've seen the same variant from various other airlines and Booking.com, but thought I'd post this here as there's a greater probability of members on this forum clicking through by accident.

The e-mail reads as below and looks reasonably plausible:

e-ticket receipt

Dear,

Booking reference: ZA0431

Thank you for booking with British Airways.

Ticket Type: e-ticket
This is your e-ticket receipt. Your ticket is held in our systems, you will not receive a paper ticket for your booking.

Your itinerary is attached.

Yours sincerely,

British Airways Customer Services