[Snort-sigs] False positive on SID 1627

John.Airey at ...2262... John.Airey at ...2262...
Tue Feb 24 06:54:19 EST 2004


This protocol is being used for the Netware 6 Clustering Heartbeat.

Here's the "payload" of some valid packets:

length = 60

000 : 00 00 27 DD CD 0F F8 81 00 00 00 0E 10 00 00 00   ..'.............
010 : 00 00 00 00 0E 00 00 00 0A 01 0B 66 0A 01 0B 66   ...........f...f
020 : 0A 01 0B 66 00 00 00 00 05 00 00 00 7B 00 00 00   ...f........{...
030 : 00 00 00 00 7B 00 00 00 01 00 00 00               ....{.......

length = 60

000 : 00 00 27 DD CD 0F F8 81 00 00 00 7C 10 00 00 00   ..'........|....
010 : 00 00 00 00 7C 00 00 00 0A 01 0B 66 0A 01 0B 66   ....|......f...f
020 : 0A 01 0B 66 01 00 00 00 04 00 00 00 8C 00 00 00   ...f............
030 : 00 00 00 00 8C 00 00 00 01 00 00 00               ............

length = 60

000 : 00 00 27 DD CD 0F F8 81 00 00 00 00 10 00 00 00   ..'.............
010 : 00 00 00 00 00 00 00 00 0A 01 0B 65 0A 01 0B 65   ...........e...e
020 : 0A 01 0B 65 01 00 00 00 04 00 00 00 00 00 00 00   ...e............
030 : 00 00 00 00 00 00 00 00 00 00 00 00               ............

length = 60

000 : 00 00 27 DD CD 0F F8 81 00 00 00 00 10 00 00 00   ..'.............
010 : 00 00 00 00 00 00 00 00 0A 01 0B 65 0A 01 0B 65   ...........e...e
020 : 0A 01 0B 65 01 00 00 00 04 00 00 00 0D 00 00 00   ...e............
030 : 00 00 00 00 0D 00 00 00 00 00 00 00               ............

I think the "e" and "f" parts are the "epoch" number that increases with
each cluster change.

I can send more data, as I have thousands of these alerts!

- 
John Airey, BSc (Jt Hons), CNA, RHCE
Internet systems support officer, ITCSD, Royal National Institute of the
Blind,
Bakewell Road, Peterborough PE2 6XU,
Tel.: +44 (0) 1733 375299 Fax: +44 (0) 1733 370848 John.Airey at ...2262... 

According to the book of Acts, Eutychus was the first man to suffer from a
General Protection Fault with Windows.


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