A fake message notifies travelers they have been issued an electronic ticket and invites them to do the online check-in in advance using the flight data in the attachment. The attachment is, in fact, hides a dangerous Trojan (identified by Bitdefender as Trojan.Agent.BASC) Once accessed, the Trojan deploys spyware on the compromised system. It seeks to steal system data and user credentials by keeping an eye on users network activities. The Trojan monitors e-mail clients including Outlook, The Bat and Windows Live Mail.”]