Troj/Agent-EZ is a keylogging Trojan for the Windows platform.
When first run Troj/Agent-EZ copies itself to <System>\ShellExt\rundll32.exe.
The following registry entry is created to run rundll32.exe on startup:
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
rundll32
<System>\SHELLEXT\rundll32.exe
Troj/Agent-EZ records keypresses and sends them to the author by email and via HTTP form submissions.