5/18: PWS-JP Trojan Runs Silently
PWS-JP is a Trojan that upon execution runs silently, no GUI messages appear on the screen.
It drops a file called hook.dll, into the %Windows\%System directory, for example
Basically this is a keylogger, it may capture data using temporary files like "form.txt" and it tries to mail these files out (encrypted) automatically.
It modifies the windows registry:
More information can be found at this McAfee page.