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Re: Zero Kiwi Log Output But SSL Preprocessor Finds 84 Server Application Alerts
From: Matt Lenco <mattlenco () yahoo com>
Date: Mon, 13 Dec 2010 14:50:27 -0800 (PST)

Joel
Thank you, I was just trying to verify that I was not about to run a bunch of 
captures through my instance of SNORT, get no alerts, when their are possible 
valid alerts that need to be addressed. Thanks for taking the extra effort to 
articulate why Kiwi shouldn't be showing alerts. 

Matt




________________________________
From: Joel Esler <jesler () sourcefire com>
To: Matt Lenco <mattlenco () yahoo com>
Cc: snort-users () lists sourceforge net
Sent: Mon, December 13, 2010 5:39:04 PM
Subject: Re: [Snort-users] Zero Kiwi Log Output But SSL Preprocessor Finds 84 
Server Application Alerts

Matt,

I've asked one of our developers to give you an explanation about what is meant 
by the SSL Preprocessor "Alerts".  But where you want to look for alerts going 
to Kiwi is under "Action Stats":

Action Stats:
   Alerts:            0 (  0.000%)
   Logged:            0 (  0.000%)
   Passed:            0 (  0.000%)
Match Limit:            0
Queue Limit:            0
 Log Limit:            0
Event Limit:            0
Verdicts:
     Allow:      168368 (100.000%)
     Block:            0 (  0.000%)
   Replace:            0 (  0.000%)
 Whitelist:            0 (  0.000%)
 Blacklist:            0 (  0.000%)
   Ignore:            0 (  0.000%)
See where it says "Alerts: 0"?  That means nothing should have went to Kiwi.

J


On Dec 13, 2010, at 8:44 AM, Matt Lenco wrote:
When I run Snort against a 700 MB bin file. It processes that file and finds 84 
SSL Processor server alerts but Kiwi doesn't have any output. I tried removing 
the -vd. Kiwi still shows no alerts nor did the SSL Preprocessor. Removing these 
switches to get Kiwi to log the alerts breaks Snort and stops it from finding 84 
alerts and Kiwi still doesn't show anything in the log. Kiwi works as I point 
Snort to an interface and sniff the live wire, I can get auth errors when I 
ping google.com. I am trying to avoid running 50 files through Snort just with 
no alerts showing up in Kiwi when there are true alerts to be taken seriously. 
How do I get Kiwi to output the alerts found below without breaking Snort to the 
point that it doesn't find alerts?

c:\Snort\bin>snort -vd -r c:\snort\log\http-capture -c c:\snort\etc\snort.conf 
-s -l c:\snort\log

SSL Preprocessor:
 SSL packets decoded: 17577
         Client Hello: 2744
         Server Hello: 2437
         Certificate: 657
         Server Done: 4518
 Client Key Exchange: 527
 Server Key Exchange: 2
       Change Cipher: 4541
             Finished: 0
   Client Application: 2107
   Server Application: 1756
               Alert: 84                         Here are the 84 alerts....
 Unrecognized records: 7918
 Completed handshakes: 0
       Bad handshakes: 8
     Sessions ignored: 1742
   Detection disabled: 77



it streams verbosely for ~10 minutes then produces this output.
===============================================================================
Run time for packet processing was 511.320000 seconds
Snort processed 168368 packets.
Snort ran for 0 days 0 hours 8 minutes 31 seconds
 Pkts/min:        21046
 Pkts/sec:          329
===============================================================================
Packet I/O Totals:
 Received:      168368
 Analyzed:      168368 (100.000%)
   Dropped:            0 (  0.000%)
 Filtered:            0 (  0.000%)
Outstanding:            0 (  0.000%)
 Injected:            0
===============================================================================
Breakdown by protocol (includes rebuilt packets):
       Eth:      168843 (100.000%)
     VLAN:            0 (  0.000%)
       IP4:      168843 (100.000%)
     Frag:            0 (  0.000%)
     ICMP:            0 (  0.000%)
       UDP:            0 (  0.000%)
       TCP:      168843 (100.000%)
       IP6:            0 (  0.000%)
   IP6 Ext:            0 (  0.000%)
 IP6 Opts:            0 (  0.000%)
     Frag6:            0 (  0.000%)
     ICMP6:            0 (  0.000%)
     UDP6:            0 (  0.000%)
     TCP6:            0 (  0.000%)
   Teredo:            0 (  0.000%)
   ICMP-IP:            0 (  0.000%)
     EAPOL:            0 (  0.000%)
   IP4/IP4:            0 (  0.000%)
   IP4/IP6:            0 (  0.000%)
   IP6/IP4:            0 (  0.000%)
   IP6/IP6:            0 (  0.000%)
       GRE:            0 (  0.000%)
   GRE Eth:            0 (  0.000%)
 GRE VLAN:            0 (  0.000%)
   GRE IP4:            0 (  0.000%)
   GRE IP6:            0 (  0.000%)
GRE IP6 Ext:            0 (  0.000%)
 GRE PPTP:            0 (  0.000%)
   GRE ARP:            0 (  0.000%)
   GRE IPX:            0 (  0.000%)
 GRE Loop:            0 (  0.000%)
     MPLS:            0 (  0.000%)
       ARP:            0 (  0.000%)
       IPX:            0 (  0.000%)
 Eth Loop:            0 (  0.000%)
 Eth Disc:            0 (  0.000%)
 IP4 Disc:            0 (  0.000%)
 IP6 Disc:            0 (  0.000%)
 TCP Disc:            0 (  0.000%)
 UDP Disc:            0 (  0.000%)
 ICMP Disc:            0 (  0.000%)
All Discard:            0 (  0.000%)
     Other:            0 (  0.000%)
Bad Chk Sum:            0 (  0.000%)
   Bad TTL:            0 (  0.000%)
   S5 G 1:          192 (  0.114%)
   S5 G 2:          283 (  0.168%)
     Total:      168843
===============================================================================
Action Stats:
   Alerts:            0 (  0.000%)
   Logged:            0 (  0.000%)
   Passed:            0 (  0.000%)
Match Limit:            0
Queue Limit:            0
 Log Limit:            0
Event Limit:            0
Verdicts:
     Allow:      168368 (100.000%)
     Block:            0 (  0.000%)
   Replace:            0 (  0.000%)
 Whitelist:            0 (  0.000%)
 Blacklist:            0 (  0.000%)
   Ignore:            0 (  0.000%)
===============================================================================
Frag3 statistics:
       Total Fragments: 0
     Frags Reassembled: 0
             Discards: 0
         Memory Faults: 0
             Timeouts: 0
             Overlaps: 0
             Anomalies: 0
               Alerts: 0
                 Drops: 0
   FragTrackers Added: 0
   FragTrackers Dumped: 0
FragTrackers Auto Freed: 0
   Frag Nodes Inserted: 0
   Frag Nodes Deleted: 0
===============================================================================
Stream5 statistics:
           Total sessions: 2422
             TCP sessions: 2422
             UDP sessions: 0
           ICMP sessions: 0
               TCP Prunes: 0
               UDP Prunes: 0
             ICMP Prunes: 0
TCP StreamTrackers Created: 2422
TCP StreamTrackers Deleted: 2422
             TCP Timeouts: 2
             TCP Overlaps: 6
     TCP Segments Queued: 7868
   TCP Segments Released: 7868
     TCP Rebuilt Packets: 3772
       TCP Segments Used: 4699
             TCP Discards: 3677
                 TCP Gaps: 556
     UDP Sessions Created: 0
     UDP Sessions Deleted: 0
             UDP Timeouts: 0
             UDP Discards: 0
                   Events: 556
         Internal Events: 0
         TCP Port Filter
                 Dropped: 0
               Inspected: 0
                 Tracked: 168368
         UDP Port Filter
                 Dropped: 0
               Inspected: 0
                 Tracked: 0
===============================================================================
HTTP Inspect - encodings (Note: stream-reassembled packets included):
   POST methods:                        0
   GET methods:                          0
   HTTP Request Headers extracted:      0
   HTTP Request cookies extracted:      0
   Post parameters extracted:            0
   HTTP Response Headers extracted:      0
   HTTP Response cookies extracted:      0
   Unicode:                              0
   Double unicode:                      0
   Non-ASCII representable:              0
   Base 36:                              0
   Directory traversals:                0
   Extra slashes ("//"):                0
   Self-referencing paths ("./"):        0
   HTTP Response Gzip packets extracted: 0
   Gzip Compressed Data Processed:      n/a
   Gzip Decompressed Data Processed:    n/a
   Total packets processed:              51046
===============================================================================
dcerpc2 Preprocessor Statistics
 Total sessions: 0
===============================================================================
SSL Preprocessor:
 SSL packets decoded: 17577
         Client Hello: 2744
         Server Hello: 2437
         Certificate: 657
         Server Done: 4518
 Client Key Exchange: 527
 Server Key Exchange: 2
       Change Cipher: 4541
             Finished: 0
   Client Application: 2107
   Server Application: 1756
               Alert: 84
 Unrecognized records: 7918
 Completed handshakes: 0
       Bad handshakes: 8
     Sessions ignored: 1742
   Detection disabled: 77
===============================================================================
Snort exiting

c:\Snort\bin>
ppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppp


ppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppp


ppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppp


ppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppp


ppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppp


ppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppp


#--------------------------------------------------
#  VRT Rule Packages Snort.conf
#
#  For more information visit us at:
#    http://www.snort.org/                  Snort Website
#    http://vrt-sourcefire.blogspot.com/    Sourcefire VRT Blog
#
#    Mailing list Contact:      snort-sigs () lists sourceforge net
#    False Positive reports:    fp () sourcefire com
#    Snort bugs:                bugs () snort org
#
#    Compatible with Snort Versions:
#    VERSIONS : 2.9.0.0
#
#    Snort build options:
#    OPTIONS : --enable-ipv6 --enable-gre --enable-mpls --enable-targetbased 
--enable-decoder-preprocessor-rules --enable-ppm --enable-perfprofiling 
--enable-zlib --enable-active-response --enable-normalizer --enable-reload 
--enable-react --enable-flexresp3
#--------------------------------------------------

###################################################
# This file contains a sample snort configuration. 
# You should take the following steps to create your own custom configuration:
#
#  1) Set the network variables.
#  2) Configure the decoder
#  3) Configure the base detection engine
#  4) Configure dynamic loaded libraries
#  5) Configure preprocessors
#  6) Configure output plugins
#  7) Customize your rule set
#  8) Customize preprocessor and decoder rule set
#  9) Customize shared object rule set
###################################################

###################################################
# Step #1: Set the network variables.  For more information, see 
README.variables
###################################################

# Setup the network addresses you are protecting
var HOME_NET any

# Set up the external network addresses. Leave as "any" in most situations
var EXTERNAL_NET any

# List of DNS servers on your network 
var DNS_SERVERS $HOME_NET

# List of SMTP servers on your network
var SMTP_SERVERS $HOME_NET

# List of web servers on your network
var HTTP_SERVERS $HOME_NET

# List of sql servers on your network 
var SQL_SERVERS $HOME_NET

# List of telnet servers on your network
var TELNET_SERVERS $HOME_NET

# List of ssh servers on your network
var SSH_SERVERS $HOME_NET

# List of ports you run web servers on
portvar HTTP_PORTS 
[80,311,591,593,901,1220,1414,1830,2301,2381,2809,3128,3702,5250,7001,7777,7779,8000,8008,8028,8080,8088,8118,8123,8180,8243,8280,8888,9090,9091,9443,9999,11371]



# List of ports you want to look for SHELLCODE on.
portvar SHELLCODE_PORTS !80

# List of ports you might see oracle attacks on
portvar ORACLE_PORTS 1024:

# List of ports you want to look for SSH connections on:
portvar SSH_PORTS 22

# other variables, these should not be modified
var AIM_SERVERS 
[64.12.24.0/23,64.12.28.0/23,64.12.161.0/24,64.12.163.0/24,64.12.200.0/24,205.188.3.0/24,205.188.5.0/24,205.188.7.0/24,205.188.9.0/24,205.188.153.0/24,205.188.179.0/24,205.188.248.0/24]



# 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 c:\Snort\rules
var SO_RULE_PATH c:\Snort\so_rules
var PREPROC_RULE_PATH c:\Snort\preproc_rules

###################################################
# Step #2: Configure the decoder.  For more information, see README.decode
###################################################

# Stop generic decode events:
config disable_decode_alerts

# Stop Alerts on experimental TCP options
config disable_tcpopt_experimental_alerts

# Stop Alerts on obsolete TCP options
config disable_tcpopt_obsolete_alerts

# Stop Alerts on T/TCP alerts
config disable_tcpopt_ttcp_alerts

# Stop Alerts on all other TCPOption type events:
config disable_tcpopt_alerts

# Stop Alerts on invalid ip options
config disable_ipopt_alerts

# Alert if value in length field (IP, TCP, UDP) is greater th elength of the 
packet
# config enable_decode_oversized_alerts

# Same as above, but drop packet if in Inline mode (requires 
enable_decode_oversized_alerts)
# config enable_decode_oversized_drops

# Configure IP / TCP checksum mode
config checksum_mode: all

# Configure maximum number of flowbit references.  For more information, see 
README.flowbits
# config flowbits_size: 64

# Configure ports to ignore 
# config ignore_ports: tcp 21 6667:6671 1356
# config ignore_ports: udp 1:17 53

# Configure active response for non inline operation. For more information, 
see 
REAMDE.active
# config response: eth0 attempts 2


###################################################
# Step #3: Configure the base detection engine.  For more information, see  
README.decode
###################################################

# Configure PCRE match limitations
config pcre_match_limit: 3500
config pcre_match_limit_recursion: 1500

# Configure the detection engine  See the Snort Manual, Configuring Snort - 
Includes - Config
config detection: search-method ac-split search-optimize max-pattern-len 20

# Configure the event queue.  For more information, see README.event_queue
config event_queue: max_queue 8 log 3 order_events content_length

###################################################
# Per packet and rule latency enforcement
# For more information see README.ppm
###################################################

# Per Packet latency configuration
#config ppm: max-pkt-time 250, \
#  fastpath-expensive-packets, \
#  pkt-log

# Per Rule latency configuration
#config ppm: max-rule-time 200, \
#  threshold 3, \
#  suspend-expensive-rules, \
#  suspend-timeout 20, \
#  rule-log alert

###################################################
# Configure Perf Profiling for debugging
# For more information see README.PerfProfiling
###################################################

#config profile_rules: print all, sort avg_ticks
#config profile_preprocs: print all, sort avg_ticks

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

# path to dynamic preprocessor libraries
dynamicpreprocessor directory c:\Snort\lib\snort_dynamicpreprocessor

# path to base preprocessor engine
dynamicengine c:\Snort\lib\snort_dynamicengine\sf_engine.dll

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

###################################################
# Step #5: Configure preprocessors
# For more information, see the Snort Manual, Configuring Snort - Preprocessors
###################################################

# Inline packet normalization. For more information, see README.normalize
# Does nothing in IDS mode
#preprocessor normalize_ip4
#preprocessor normalize_tcp: ips ecn stream
#preprocessor normalize_icmp4
#preprocessor normalize_ip6
#preprocessor normalize_icmp6

# Target-based IP defragmentation.  For more inforation, see README.frag3
preprocessor frag3_global: max_frags 65536
preprocessor frag3_engine: policy windows detect_anomalies overlap_limit 10 
min_fragment_length 100 timeout 180

# Target-Based stateful inspection/stream reassembly.  For more inforation, 
see 
README.stream5
preprocessor stream5_global: max_tcp 8192, track_tcp yes, track_udp yes, 
track_icmp no max_active_responses 2 min_response_seconds 5
preprocessor stream5_tcp: policy windows, detect_anomalies, require_3whs 180, \
 overlap_limit 10, small_segments 3 bytes 150, timeout 180, \
   ports client 21 22 23 25 42 53 79 109 110 111 113 119 135 136 137 139 143 \
       161 445 513 514 587 593 691 1433 1521 2100 3306 6070 6665 6666 6667 
6668 
6669 \
       7000 32770 32771 32772 32773 32774 32775 32776 32777 32778 32779, \
   ports both 80 311 443 465 563 591 593 636 901 989 992 993 994 995 1220 
1414 
1830 2301 2381 2809 3128 3702 5250 6907 7001 7702 7777 7779 \
       7801 7900 7901 7902 7903 7904 7905 7906 7908 7909 7910 7911 7912 7913 
7914 7915 7916 \
       7917 7918 7919 7920 8000 8008 8028 8080 8088 8118 8123 8180 8243 8280 
8888 9090 9091 9443 9999 11371
preprocessor stream5_udp: timeout 180

# performance statistics.  For more information, see the Snort Manual, 
Configuring Snort - Preprocessors - Performance Monitor
# preprocessor perfmonitor: time 300 file /var/snort/snort.stats pktcnt 10000

# HTTP normalization and anomaly detection.  For more information, see 
README.http_inspect
preprocessor http_inspect: global iis_unicode_map unicode.map 1252 
compress_depth 20480 decompress_depth 20480
preprocessor http_inspect_server: server default \
   chunk_length 500000 \
   server_flow_depth 0 \
   client_flow_depth 0 \
   post_depth 65495 \
   oversize_dir_length 500 \
   max_header_length 750 \
   max_headers 100 \
   ports { 80 311 591 593 901 1220 1414 1830 2301 2381 2809 3128 3702 5250 
7001 
7777 7779 8000 8008 8028 8080 8088 8118 8123 8180 8243 8280 8888 9090 9091 
9443 
9999 11371 } \
   non_rfc_char { 0x00 0x01 0x02 0x03 0x04 0x05 0x06 0x07 } \
   enable_cookie \
   extended_response_inspection \
   inspect_gzip \
   normalize_utf \
   unlimited_decompress \
   apache_whitespace no \
   ascii no \
   bare_byte no \
   base36 no \
   directory no \
   double_decode no \
   iis_backslash no \
   iis_delimiter no \
   iis_unicode no \
   multi_slash no \
 utf_8 no \
   u_encode yes \
   webroot no

# ONC-RPC normalization and anomaly detection.  For more information, see the 
Snort Manual, Configuring Snort - Preprocessors - RPC Decode
preprocessor rpc_decode: 111 32770 32771 32772 32773 32774 32775 32776 32777 
32778 32779 no_alert_multiple_requests no_alert_large_fragments 
no_alert_incomplete

# Back Orifice detection.
preprocessor bo

# FTP / Telnet normalization and anomaly detection.  For more information, see 
README.ftptelnet
preprocessor ftp_telnet: global inspection_type stateful encrypted_traffic no
preprocessor ftp_telnet_protocol: telnet \
   ayt_attack_thresh 20 \
   normalize ports { 23 } \
   detect_anomalies
preprocessor ftp_telnet_protocol: ftp server default \
   def_max_param_len 100 \
   ports { 21 2100 3535 } \
   telnet_cmds yes \
   ignore_telnet_erase_cmds yes \
   ftp_cmds { ABOR ACCT ADAT ALLO APPE AUTH CCC CDUP } \
   ftp_cmds { CEL CLNT CMD CONF CWD DELE ENC EPRT } \
   ftp_cmds { EPSV ESTA ESTP FEAT HELP LANG LIST LPRT } \
   ftp_cmds { LPSV MACB MAIL MDTM MIC MKD MLSD MLST } \
   ftp_cmds { MODE NLST NOOP OPTS PASS PASV PBSZ PORT } \
   ftp_cmds { PROT PWD QUIT REIN REST RETR RMD RNFR } \
   ftp_cmds { RNTO SDUP SITE SIZE SMNT STAT STOR STOU } \
   ftp_cmds { STRU SYST TEST TYPE USER XCUP XCRC XCWD } \
   ftp_cmds { XMAS XMD5 XMKD XPWD XRCP XRMD XRSQ XSEM } \
   ftp_cmds { XSEN XSHA1 XSHA256 } \
   alt_max_param_len 0 { ABOR CCC CDUP ESTA FEAT LPSV NOOP PASV PWD QUIT REIN 
STOU SYST XCUP XPWD } \
   alt_max_param_len 200 { ALLO APPE CMD HELP NLST RETR RNFR STOR STOU XMKD } 
\
   alt_max_param_len 256 { CWD RNTO } \
   alt_max_param_len 400 { PORT } \
   alt_max_param_len 512 { SIZE } \
   chk_str_fmt { ACCT ADAT ALLO APPE AUTH CEL CLNT CMD } \
   chk_str_fmt { CONF CWD DELE ENC EPRT EPSV ESTP HELP } \
   chk_str_fmt { LANG LIST LPRT MACB MAIL MDTM MIC MKD } \
   chk_str_fmt { MLSD MLST MODE NLST OPTS PASS PBSZ PORT } \
   chk_str_fmt { PROT REST RETR RMD RNFR RNTO SDUP SITE } \
   chk_str_fmt { SIZE SMNT STAT STOR STRU TEST TYPE USER } \
   chk_str_fmt { XCRC XCWD XMAS XMD5 XMKD XRCP XRMD XRSQ } \ 
   chk_str_fmt { XSEM XSEN XSHA1 XSHA256 } \
   cmd_validity ALLO < int [ char R int ] > \    
   cmd_validity EPSV < [ { char 12 | char A char L char L } ] > \
   cmd_validity MACB < string > \
   cmd_validity MDTM < [ date nnnnnnnnnnnnnn[.n[n[n]]] ] string > \
   cmd_validity MODE < char ASBCZ > \
   cmd_validity PORT < host_port > \
   cmd_validity PROT < char CSEP > \
   cmd_validity STRU < char FRPO [ string ] > \    
   cmd_validity TYPE < { char AE [ char NTC ] | char I | char L [ number ] } >
preprocessor ftp_telnet_protocol: ftp client default \
   max_resp_len 256 \
   bounce yes \
   ignore_telnet_erase_cmds yes \
   telnet_cmds yes


# SMTP normalization and anomaly detection.  For more information, see 
README.SMTP
preprocessor smtp: ports { 25 465 587 691 } \
   inspection_type stateful \
   enable_mime_decoding \
   max_mime_depth 20480 \
   normalize cmds \
   normalize_cmds { ATRN AUTH BDAT CHUNKING DATA DEBUG EHLO EMAL ESAM ESND 
ESOM 
ETRN EVFY } \
   normalize_cmds { EXPN HELO HELP IDENT MAIL NOOP ONEX QUEU QUIT RCPT RSET 
SAML SEND SOML } \
   normalize_cmds { STARTTLS TICK TIME TURN TURNME VERB VRFY X-ADAT X-DRCP 
X-ERCP X-EXCH50 } \
   normalize_cmds { X-EXPS X-LINK2STATE XADR XAUTH XCIR XEXCH50 XGEN XLICENSE 
XQUE XSTA XTRN XUSR } \
   max_command_line_len 512 \
   max_header_line_len 1000 \
   max_response_line_len 512 \
   alt_max_command_line_len 260 { MAIL } \
   alt_max_command_line_len 300 { RCPT } \
   alt_max_command_line_len 500 { HELP HELO ETRN EHLO } \
   alt_max_command_line_len 255 { EXPN VRFY ATRN SIZE BDAT DEBUG EMAL ESAM 
ESND 
ESOM EVFY IDENT NOOP RSET } \
   alt_max_command_line_len 246 { SEND SAML SOML AUTH TURN ETRN DATA RSET 
QUIT 
ONEX QUEU STARTTLS TICK TIME TURNME VERB X-EXPS X-LINK2STATE XADR XAUTH XCIR 
XEXCH50 XGEN XLICENSE XQUE XSTA XTRN XUSR } \
   valid_cmds { ATRN AUTH BDAT CHUNKING DATA DEBUG EHLO EMAL ESAM ESND ESOM 
ETRN EVFY } \ 

   valid_cmds { EXPN HELO HELP IDENT MAIL NOOP ONEX QUEU QUIT RCPT RSET SAML 
SEND SOML } \
   valid_cmds { STARTTLS TICK TIME TURN TURNME VERB VRFY X-ADAT X-DRCP X-ERCP 
X-EXCH50 } \
   valid_cmds { X-EXPS X-LINK2STATE XADR XAUTH XCIR XEXCH50 XGEN XLICENSE 
XQUE 
XSTA XTRN XUSR } \
   xlink2state { enabled }

# Portscan detection.  For more information, see README.sfportscan
# preprocessor sfportscan: proto  { all } memcap { 10000000 } sense_level { 
low 
}

# ARP spoof detection.  For more information, see the Snort Manual - 
Configuring 
Snort - Preprocessors - ARP Spoof Preprocessor
# preprocessor arpspoof
# preprocessor arpspoof_detect_host: 192.168.40.1 f0:0f:00:f0:0f:00

# SSH anomaly detection.  For more information, see README.ssh
preprocessor ssh: server_ports { 22 } \
                 autodetect \
                 max_client_bytes 19600 \
                 max_encrypted_packets 20 \
                 max_server_version_len 100 \
                 enable_respoverflow enable_ssh1crc32 \
                 enable_srvoverflow enable_protomismatch

# SMB / DCE-RPC normalization and anomaly detection.  For more information, 
see 
README.dcerpc2
preprocessor dcerpc2: memcap 102400, events [co ]
preprocessor dcerpc2_server: default, policy WinXP, \
   detect [smb [139,445], tcp 135, udp 135, rpc-over-http-server 593], \
   autodetect [tcp 1025:, udp 1025:, rpc-over-http-server 1025:], \
   smb_max_chain 3

# DNS anomaly detection.  For more information, see README.dns
preprocessor dns: ports { 53 } enable_rdata_overflow

# SSL anomaly detection and traffic bypass.  For more information, see 
README.ssl
preprocessor ssl: ports { 443 465 563 636 989 992 993 994 995 7801 7702 7900 
7901 7902 7903 7904 7905 7906 6907 7908 7909 7910 7911 7912 7913 7914 
7915 7916 
7917 7918 7919 7920 }, trustservers, noinspect_encrypted

# SDF sensitive data preprocessor.  For more information see 
README.sensitive_data
preprocessor sensitive_data: alert_threshold 25

###################################################
# Step #6: Configure output plugins
# For more information, see Snort Manual, Configuring Snort - Output Modules
###################################################

# unified2 
# Recommended for most installs
# output unified2: filename merged.log, limit 128, nostamp, mpls_event_types, 
vlan_event_types

# Additional configuration for specific types of installs
# output alert_unified2: filename snort.alert, limit 128, nostamp
# output log_unified2: filename snort.log, limit 128, nostamp 

# syslog
output alert_syslog: host=127.0.0.1:514, LOG_AUTH LOG_ALERT

# pcap
# output log_tcpdump: tcpdump.log
#output fast_alert: alerts.ids
# database
# output database: alert, <db_type>, user=<username> password=<password> test 
dbname=<name> host=<hostname>
#output database: log, mysql, user=snort password=passwordex dbname=snort_db 
host=localhost

# prelude
# output alert_prelude

# metadata reference data.  do not modify these lines
include c:\Snort\etc\classification.config
include c:\Snort\etc\reference.config


###################################################
# 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/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

###################################################
# Step #8: Customize your preprocessor and decoder alerts
# For more information, see README.decoder_preproc_rules
###################################################

# decoder and preprocessor event rules
# include $PREPROC_RULE_PATH/preprocessor.rules
# include $PREPROC_RULE_PATH/decoder.rules
# include $PREPROC_RULE_PATH/sensitive-data.rules

###################################################
# Step #9: Customize your Shared Object Snort Rules
# For more information, see 
http://vrt-sourcefire.blogspot.com/2009/01/using-vrt-certified-shared-object-rules.html


###################################################

# dynamic library rules
# include $SO_RULE_PATH/bad-traffic.rules
# include $SO_RULE_PATH/chat.rules
# include $SO_RULE_PATH/dos.rules
# include $SO_RULE_PATH/exploit.rules
# include $SO_RULE_PATH/icmp.rules
# include $SO_RULE_PATH/imap.rules
# include $SO_RULE_PATH/misc.rules
# include $SO_RULE_PATH/multimedia.rules
# include $SO_RULE_PATH/netbios.rules
# include $SO_RULE_PATH/nntp.rules
# include $SO_RULE_PATH/p2p.rules
# include $SO_RULE_PATH/smtp.rules
# include $SO_RULE_PATH/sql.rules
# include $SO_RULE_PATH/web-activex.rules
# include $SO_RULE_PATH/web-client.rules
# include $SO_RULE_PATH/web-iis.rules
# include $SO_RULE_PATH/web-misc.rules

# Event thresholding or suppression commands. See threshold.conf 
include threshold.conf


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