snortalog -- Snort log analyzer
http://jeremy.chartier.free.fr/snortalog/
SnortALog is a powerfull perl script that summarizes snort logs making
it easy to view any attacks against your network.
SnortALog works with all versions of SNORT and is the only script who
can analyse snort's logs in all formats (Syslog, Fast and Full alerts).
Also, it is able to summarize Fw-1 (NG and 4.1), Netfilter and IPFilter
logs in a simmilar way.