If you received an email similar to the following, I hope you have the sense to mark as Spam and delete without opening the attachment.
Subject: Wrong transaction from your credit card in Raffles L’Ermitage Beverly Hills
Content: Dear Guest! On July 26th, 2011 Hotel made wrong transaction from your account for an overall amount of $1447. For noncompliance of the service contract this Hotel was divested accreditation in Booking Company. Please see the attached form. You need to fill it in and contact your bank for the return of funds. In the attachment you will find expense sheet with the sum of wrong transaction decommissioning. Company just mediates and bears no responsibility for any money transactions made by Hotel. Sorry for the inconvenience. We trust you can solve this unpleasant problem.
Manager: Jason Busha
Of course, if you were recently a guest at Raffles L’Ermitage Beverly Hills recently, it may be worth opening the zip file and running the executable (.exe) file within but a better course of action would be to contact the hotel through their website and ask to speak to Mr. Busha.