Security Incidents: Re: Port 1975 rogue service

["Steven M. Christey" <coley () linus mitre org>]

Just in case some list readers are wondering *why* this looks like an
FTP server, it's because of the "220-" lines, where 220 is a standard
status code.  FTP banners typically have multiple "220-" lines, and
the final banner line is a "220 " (the "-" is used to say "more lines
are coming.")

Even without knowing this signature of the FTP protocol, the banner
messages suggest a multi-user server ("leechers logged in") which is
used for data transfer ("kb leeched" and "kb filled").

- Steve

P.S.  To oversimplify, this is the sort of protocol-level knowledge
that might be expected of people with lower-level GIAC certifications
rather than broad-based CISSP certifications.

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