RE: Port 1975 rogue service

["Stacy Olivas" <olivas () digiflux org>]

Speaking of such compromises, here's an interesting article on another
example of one:
http://www.mynetwatchman.com/kb/security/articles/winforensics/index.htm

Sorry, might be slightly O/T, but it is interesting.

Enjoy!

-Stacy

-----Original Message-----
From: Steven M. Christey [mailto:coley () linus mitre org] 
Sent: Sunday, November 03, 2002 12:42 AM
To: incidents () securityfocus com
Subject: Re: Port 1975 rogue service


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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