When Profiler is shut down normally the trace is stopped and deleted from the system. Are you sure you the trace is running? I really doubt it.

Run Select * From sys.traces and you should see the default trace, id = 1 and any others that are defined. The one from profiler will have a NULL path and is_rowset should be 1.

If it is running there is no way to attach to it that I am aware of so you are out of luck regardless.