Think I've got trouble

[Katherine Ogden <kogden () 4cd net>]

We began having trouble with our exchange server. 
For no reason we could pin down the OWA would 
throw up an error and stop the www service.  Being 
the slightly paranoid sort I downloaded Retina and ran 
it against the email server.  It showed the usual things 
but it also showed
Port 1058 - Nim
Port 1090 - Xtreme

Two other exchange servers show these ports open.
Port 1042 - Bla
Port 1059 - Nimreg

Two questions.  Does anybody know what these
are?  And am I right in assuming that these machines 
have been compromised and will need to be rebuilt?

Thank you for the help.

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