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Re: MySQL support for Snort 2.9.4
From: Jeremy Hoel <jthoel () gmail com>
Date: Tue, 11 Dec 2012 21:07:30 -0700

And your barnyard2 is looking in the right directory for the snort.u2
file?  Can you run by2 and paste the output?  And the command line you are
calling for by2
On Dec 11, 2012 8:50 PM, "Kaya Saman" <kayasaman () gmail com> wrote:

 On 12/12/2012 03:37 AM, Jeremy Hoel wrote:

Yeah you!


Next time someone in my house makes cookies everyone's invited :-)

 Are you outputting snort in unified2 format and reading that with
barnyard2?


Yep:

output unified2: filename snort.u2, limit 128

 Share your snort.conf output lines.


Snort.conf is bog standard with:

top customized with details of servers and IP addresses yada yada yada
..... man snort.conf {am glossing as is trivial }

I just changed:

# Path to your rules files (this can be a relative path)
# Note for Windows users:  You are advised to make this an absolute path,
# such as:  c:\snort\rules
var RULE_PATH rules
var SO_RULE_PATH so_rules
var PREPROC_RULE_PATH preproc_rules

# If you are using reputation preprocessor set these
# Currently there is a bug with relative paths, they are relative to where
snort is
# not relative to snort.conf like the above variables
# This is completely inconsistent with how other vars work, BUG 89986
# Set the absolute path appropriately
var WHITE_LIST_PATH rules
var BLACK_LIST_PATH rules


###################################################
# Step #4: Configure dynamic loaded libraries.
# For more information, see Snort Manual, Configuring Snort - Dynamic
Modules
###################################################

# path to dynamic preprocessor libraries
dynamicpreprocessor directory /usr/local/lib/snort_dynamicpreprocessor/

# path to base preprocessor engine
dynamicengine /usr/local/lib/snort_dynamicengine/libsf_engine.so

# path to dynamic rules libraries
#dynamicdetection directory /usr/local/lib/snort_dynamicrules



###################################################
# Step #7: Customize your rule set
# For more information, see Snort Manual, Writing Snort Rules
#
# NOTE: All categories are enabled in this conf file
###################################################

# site specific rules
#include $RULE_PATH/local.rules

#include $RULE_PATH/attack-responses.rules
#include $RULE_PATH/backdoor.rules
#include $RULE_PATH/bad-traffic.rules
#include $RULE_PATH/blacklist.rules
#include $RULE_PATH/botnet-cnc.rules
#include $RULE_PATH/chat.rules
#include $RULE_PATH/content-replace.rules
#include $RULE_PATH/ddos.rules
#include $RULE_PATH/dns.rules
#include $RULE_PATH/dos.rules
#include $RULE_PATH/exploit.rules
#include $RULE_PATH/file-identify.rules
#include $RULE_PATH/finger.rules
#include $RULE_PATH/ftp.rules
#include $RULE_PATH/icmp.rules
#include $RULE_PATH/icmp-info.rules
#include $RULE_PATH/imap.rules
#include $RULE_PATH/info.rules
#include $RULE_PATH/misc.rules
#include $RULE_PATH/multimedia.rules
#include $RULE_PATH/mysql.rules
#include $RULE_PATH/netbios.rules
#include $RULE_PATH/nntp.rules
#include $RULE_PATH/oracle.rules
#include $RULE_PATH/other-ids.rules
#include $RULE_PATH/p2p.rules
#include $RULE_PATH/phishing-spam.rules
#include $RULE_PATH/policy.rules
#include $RULE_PATH/pop2.rules
#include $RULE_PATH/pop3.rules
#include $RULE_PATH/rpc.rules
#include $RULE_PATH/rservices.rules
#include $RULE_PATH/scada.rules
#include $RULE_PATH/scan.rules
#include $RULE_PATH/shellcode.rules
#include $RULE_PATH/smtp.rules
#include $RULE_PATH/snmp.rules
#include $RULE_PATH/specific-threats.rules
#include $RULE_PATH/spyware-put.rules
#include $RULE_PATH/sql.rules
#include $RULE_PATH/telnet.rules
#include $RULE_PATH/tftp.rules
#include $RULE_PATH/virus.rules
#include $RULE_PATH/voip.rules
#include $RULE_PATH/web-activex.rules
#include $RULE_PATH/web-attacks.rules
#include $RULE_PATH/web-cgi.rules
#include $RULE_PATH/web-client.rules
#include $RULE_PATH/web-coldfusion.rules
#include $RULE_PATH/web-frontpage.rules
#include $RULE_PATH/web-iis.rules
#include $RULE_PATH/web-misc.rules
#include $RULE_PATH/web-php.rules
#include $RULE_PATH/x11.rules



I also wrote a custom script'ish section to produce the file:

#include $RULE_PATH/rule.set

Basically:

ls -l rules | cut -c 50-100 > rule.list
sed 's/^/include $RULE_PATH\//' rule.list > rule.set


This would be fine for adding any *.rules files to rule.list which then
gets transformed to rule.set; saves having to write out each line manually!


That's about it.......


# ls -lh /var/log/snort
total 837292
-rw-r--r--  1 _snort  _snort     0B Dec  4 01:21 alert
-rw-------  1 root    _snort   5.1K Dec 12 03:24 snort.u2.1355282592
-rw-------  1 root    _snort     0B Dec 12 03:26 snort.u2.1355282785
-rw-------  1 root    _snort  19.8M Dec 12 03:27 snort.u2.1355282811
-rw-------  1 root    _snort   128M Dec 12 03:32 snort.u2.1355282879
-rw-------  1 root    _snort   128M Dec 12 03:36 snort.u2.1355283128
-rw-------  1 root    _snort   128M Dec 12 03:41 snort.u2.1355283410
-rw-------  1 root    _snort   4.8M Dec 12 03:48 snort.u2.1355283668



Now all I need to do is get Barnyard2 working and with a bit of luck will
start being able to see alerts back on Base.

Few, that was a trek and half!

 On Dec 11, 2012 8:29 PM, "Kaya Saman" <kayasaman () gmail com> wrote:

 On 12/11/2012 09:54 PM, Joel Esler wrote:


 Doesn't sound like that was the problem.  Looks like you have a larger
problem.  Traffic not being received or analyzed correctly.  You said that
all you were getting was icmp alerts, and that doesn't sound right (unless
that's all you have)

 --
*Joel Esler*
Senior Research Engineer, VRT
OpenSource Community Manager
Sourcefire


Finally I got this working!!!! :-)

Basically all I needed to do was to add the paths for these in and take
out all the other obsolete rules which weren't working:

include $RULE_PATH/decoder.rules
include $RULE_PATH/preprocessor.rules
include $RULE_PATH/sensitive-data.rules

Now I get alerts even!

The only issue is that Barnyard2 is now segfaulting when reading the
Snort log files? :-( I keep getting "bus error" - which I've been having
too much of lately!


Thanks for all the help!


Regards,


Kaya


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Remotely access PCs and mobile devices and provide instant support
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