From: Mark Sayer (msayer@neocomm.com.au)
Date: Thu Aug 14 2003 - 23:05:22 EDT
Howdy folks -
No - it's not SMTP - at least nothing I have ever seen before. When
connecting to TCP port 25 I get the following banner:
220
***0*******************************************2************************
*200***0********0**0
On subsquent connections, I get slightly different banners:
220
***0*******************************************2************************
*200***2********0**0
or
220
***0*******************************************2************************
*200***2*20*02**0**0
or
220
***0*******************************************2************************
*200***2*20*****0**0
If I enter more than 1 character of text and press ENTER, I get the
error message:
500 web03: unknown command.
If I enter a single character and press ENTER, I get no response and the
service becomes un-responsive to any further interaction.
Looks like FTP return codes - 220 being service ready, and 500 being
command not found - but it doesn't seem to want to talk back to me via
FTP protocol.
I think it's very rude.
It's running on a Win2k server with IIS5 installed.
Any ideas as to what this might be?
Cheers,
Mark.
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