Troj/Bdoor-ZAS is a backdoor Trojan for the Windows platform.
The Trojan copies itself to the Windows folder as Iefxtray.exe and svchost.exe and creates the following registry entry in order to run each time a user logs on:
HKLM\Software\Microsoft\Windows\CurrentVersion\Run
IefxTray
%WINDOWS%\iefxtray.exe
The Trojan connects to a remote site to report infection and then listens for connections from remote users. The backdoor can be instructed to find and read arbitrary files.