Funny looking domains coming up in Netwo

There are 2 differnt domains coming up ? Its weird because I got this message on my server named ett_08, the server was unable to logon the Windows NT account ‘IUSR_ETT_08’ due to the following error: Logon failure: unknown user name or bad password. The data is the error code. and the funny looking domains look like o|8| ?? Any clue