Malware
Astasia
Astasia is a banking trojan that spreads through phishing emails that contain an executable attachment.
Astasia is a Windows malware family.
Background
Astasia is a banking trojan distributed via phishing emails carrying an executable attachment. When the victim runs the attachment, Astasia fetches and installs a trojan that operates silently in the background. That trojan can siphon personal data such as passwords and credit card numbers from its victims.
Source: Malpedia (Fraunhofer FKIE).