[Snort-users] MS-SQL Worm propagation -false positive

Over a 5 minute interval Snort captured more than 500 scans with the
classic signature for MS-SQL Worm propagation:

38>snort: [1:2003:2] MS-SQL Worm propagation attempt [Classification:
Misc Attack] [Priority: 2]: {UDP} xxx.xx.x.xx:1105 -> <many random
ipaddrs>:1434

The originating ip belonged to a laptop running XP with all up-to-date
connected to the network over VPN 3-DES tunnel. The laptop was brought
to IT for cleaning. The laptop was found to be up-to-date with all
patches/service packs. The drive was scanned with Norton Anti-virus with
all current signatures and came up clean. The laptop has been back on
the network for 2 days with no further incidents. This would appear to
be a false positive. Is there any other steps that could have been taken
to track down and account for the original cause for this incident?
Suggestions welcome.

Thanks.




-------------------------------------------------------
This SF.net email is sponsored by: Perforce Software.
Perforce is the Fast Software Configuration Management System offering
advanced branching capabilities and atomic changes on 50+ platforms.
Free Eval! http://www.perforce.com/perforce/loadprog.html
_______________________________________________
Snort-users mailing list
Snort-users@lists.sourceforge.net
Go to this URL to change user options or unsubscribe:
https://lists.sourceforge.net/lists/...fo/snort-users
Snort-users list archive:
http://www.geocrawler.com/redir-sf.p...st=snort-users