[Snort-users] HTTP reassembly problem

Russ Combs rcombs at ...1935...
Tue Oct 9 11:03:34 EDT 2012


Can you send a pcap?

On Tue, Oct 9, 2012 at 10:29 AM, João Lima <
joao.pedro.paulino.lima at ...11827...> wrote:

> Hello,
>
> I'm having a little problem with the reassembly of HTTP PDUs...
>
> My scenario is the following: I have one HTTP POST that is spread across
>  two TCP packets... What I'm trying to do is to find one message an alert
> when it is found in order to be able to process it in a custom system...
>
> However, I've already tried almost every configuration of stream5 and
> http_inspect, and I'm only able to retrieve the first packet of the two
> that compose the HTTP POST... All the documentation says it is possible
> that Snort is able to reassemble  packets, but I've found no information
> about its ability to return the send a unified2Packet with the reassembled
> packet...
>
> The HTTP server is running on port 8081...
>
> Can you tell me if I'm missing something either on the snort configuration
> or in the detection rule??
>
> Rule used to detect the packet:
>
> "alert tcp any any -> 192.168.8.177 any (msg:"Action type 50";
> sid:1000050; content:"|3c 78 73 64 .......|";)"
>
> My snort.conf is below:
>
> # Setup the network addresses you are protecting
> ipvar HOME_NET [192.168.0.0/16,10.0.0.0/8,172.16.0.0/12]
>
> # Set up the external network addresses. Leave as "any" in most situations
> ipvar EXTERNAL_NET any
>
> # List of DNS servers on your network
> ipvar DNS_SERVERS $HOME_NET
>
> # List of SMTP servers on your network
> ipvar SMTP_SERVERS $HOME_NET
>
> # List of web servers on your network
> ipvar HTTP_SERVERS $HOME_NET
>
>  # List of sql servers on your network
> ipvar SQL_SERVERS $HOME_NET
>
> # List of telnet servers on your network
> ipvar TELNET_SERVERS $HOME_NET
>
> # List of ssh servers on your network
> ipvar SSH_SERVERS $HOME_NET
>
> # List of ftp servers on your network
> ipvar FTP_SERVERS $HOME_NET
>
> # List of sip servers on your network
> ipvar SIP_SERVERS $HOME_NET
>
> # List of ports you run web servers on
> portvar HTTP_PORTS
> [80,81,311,591,593,901,1220,1414,1830,2301,2381,2809,3128,3702,4343,5250,7001,7145,7510,7777,7779,8000,8008,8014,8028,8080,8081,8088,8118,8123,8180,8181,8243,8280,8800,8888,8899,9080,9090,9091,9443,9999,11371,55555]
>
> # List of ports you want to look for SHELLCODE on.
> portvar SHELLCODE_PORTS !80
>
> # List of ports you might see oracle attacks on
> portvar ORACLE_PORTS 1024:
>
> # List of ports you want to look for SSH connections on:
> portvar SSH_PORTS 22
>
> # List of ports you run ftp servers on
> portvar FTP_PORTS [21,2100,3535]
>
> # List of ports you run SIP servers on
> portvar SIP_PORTS [5060,5061,5600]
>
> # List of file data ports for file inspection
> portvar FILE_DATA_PORTS [$HTTP_PORTS,110,143]
>
> # List of GTP ports for GTP preprocessor
> portvar GTP_PORTS [2123,2152,3386]
>
> # other variables, these should not be modified
> ipvar 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
> ]
>
> include /etc/nsm/CSIS/local.variables
>
> # 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 /etc/nsm/rules
> var SO_RULE_PATH /etc/nsm/rules
> var PREPROC_RULE_PATH /etc/nsm/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 /etc/nsm/rules
> var BLACK_LIST_PATH /etc/nsm/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
>
> # Configure DAQ related options for inline operation. For more
> information, see README.daq
> #
> # config daq: <type>
> # config daq_dir: <dir>
> # config daq_mode: <mode>
> # config daq_var: <var>
> #
> # <type> ::= pcap | afpacket | dump | nfq | ipq | ipfw
> # <mode> ::= read-file | passive | inline
> # <var> ::= arbitrary <name>=<value passed to DAQ
> # <dir> ::= path as to where to look for DAQ module so's
>
> # Configure specific UID and GID to run snort as after dropping privs. For
> more information see snort -h command line options
> #
> # config set_gid:
> # config set_uid:
>
> # Configure default snaplen. Snort defaults to MTU of in use interface.
> For more information see README
> #
> # config snaplen:
> #
>
> # Configure default bpf_file to use for filtering what traffic reaches
> snort. For more information see snort -h command line options (-F)
> #
> # config bpf_file:
> #
>
> # Configure default log directory for snort to log to.  For more
> information see snort -h command line options (-l)
> #
> # config logdir:
>
>
> ###################################################
> # 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
>
> ###################################################
> ## Configure GTP if it is to be used.
> ## For more information, see README.GTP
> ####################################################
>
> # config enable_gtp
>
> ###################################################
> # 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
>
> ###################################################
> # Configure protocol aware flushing
> # For more information see README.stream5
> ###################################################
> config paf_max: 16000
>
> ###################################################
> # 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 #5: Configure preprocessors
> # For more information, see the Snort Manual, Configuring Snort -
> Preprocessors
> ###################################################
>
> # GTP Control Channle Preprocessor. For more information, see README.GTP
> # preprocessor gtp: ports { 2123 3386 2152 }
>
> # 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: track_tcp yes, \
>    track_udp yes, \
>    track_icmp no, \
>    max_tcp 262144, \
>    max_udp 131072, \
>    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 8181 32770 32771 32772 32773 32774 32775 32776 32777 32778
> 32779, \
>     ports both 80 81 311 443 465 563 591 593 636 901 989 992 993 994 995
> 1220 1414 1830 2301 2381 2809 3128 3702 4343 5250 7907 7001 7145 7510 7802
> 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 8014 8028 8080 8081 8088 8118 8123
> 8180 8243 8280 8800 8888 8899 9080 9090 9091 9443 9999 11371 55555
> preprocessor stream5_udp: timeout 180
>
> # performance statistics.  For more information, see the Snort Manual,
> Configuring Snort - Preprocessors - Performance Monitor
> preprocessor perfmonitor: time 300 file
> /nsm/sensor_data/onion-desktop-eth0/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 65535 decompress_depth 65535
> preprocessor http_inspect_server: server default \
>     http_methods { GET POST PUT SEARCH MKCOL COPY MOVE LOCK UNLOCK NOTIFY
> POLL BCOPY BDELETE BMOVE LINK UNLINK OPTIONS HEAD DELETE TRACE TRACK
> CONNECT SOURCE SUBSCRIBE UNSUBSCRIBE PROPFIND PROPPATCH BPROPFIND
> BPROPPATCH RPC_CONNECT PROXY_SUCCESS BITS_POST CCM_POST SMS_POST
> RPC_IN_DATA RPC_OUT_DATA RPC_ECHO_DATA } \
>     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 \
>     max_spaces 0 \
>     small_chunk_length { 10 5 } \
>     ports { 80 81 311 591 593 901 1220 1414 1830 2301 2381 2809 3128 3702
> 4343 5250 7001 7145 7510 7777 7779 8000 8008 8014 8028 8080 8081 8088 8118
> 8123 8180 8181 8243 8280 8800 8888 8899 9080 9090 9091 9443 9999 11371
> 55555 } \
>     non_rfc_char { 0x00 0x01 0x02 0x03 0x04 0x05 0x06 0x07 } \
>     enable_cookie \
>     extended_response_inspection \
>     inspect_gzip \
>     normalize_utf \
>     unlimited_decompress \
>     normalize_javascript \
>     apache_whitespace no \
>     ascii no \
>     bare_byte 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 check_encrypted
> 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 \
>     b64_decode_depth 0 \
>     qp_decode_depth 0 \
>     bitenc_decode_depth 0 \
>     uu_decode_depth 0 \
>     log_mailfrom \
>     log_rcptto \
>     log_filename \
>     log_email_hdrs \
>     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, smb_invalid_shares ["C$", "D$", "ADMIN$"]
>
> # 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 7802
> 7900 7901 7902 7903 7904 7905 7906 7907 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
>
> # SIP Session Initiation Protocol preprocessor.  For more information see
> README.sip
> preprocessor sip: max_sessions 40000, \
>    ports { 5060 5061 5600 }, \
>    methods { invite \
>              cancel \
>              ack \
>              bye \
>              register \
>              options \
>              refer \
>              subscribe \
>              update \
>              join \
>              info \
>              message \
>              notify \
>              benotify \
>              do \
>              qauth \
>              sprack \
>              publish \
>              service \
>              unsubscribe \
>              prack }, \
>    max_uri_len 512, \
>    max_call_id_len 80, \
>    max_requestName_len 20, \
>    max_from_len 256, \
>    max_to_len 256, \
>    max_via_len 1024, \
>    max_contact_len 512, \
>    max_content_len 2048
>
> # IMAP preprocessor.  For more information see README.imap
> preprocessor imap: \
>    ports { 143 } \
>    b64_decode_depth 0 \
>    qp_decode_depth 0 \
>    bitenc_decode_depth 0 \
>    uu_decode_depth 0
>
> # POP preprocessor. For more information see README.pop
> preprocessor pop: \
>    ports { 110 } \
>    b64_decode_depth 0 \
>    qp_decode_depth 0 \
>    bitenc_decode_depth 0 \
>    uu_decode_depth 0
>
> # Modbus preprocessor. For more information see README.modbus
> preprocessor modbus: ports { 502 }
>
> # DNP3 preprocessor. For more information see README.dnp3
> preprocessor dnp3: ports { 20000 } \
>    memcap 262144 \
>    check_crc
>
> # Reputation preprocessor. For more information see README.reputation
> preprocessor reputation: \
>    memcap 500, \
>    priority whitelist, \
>    nested_ip inner, \
>    whitelist $WHITE_LIST_PATH/white_list.rules, \
>    blacklist $BLACK_LIST_PATH/black_list.rules
>
> ###################################################
> # Step #6: Configure output plugins
> # For more information, see Snort Manual, Configuring Snort - Output
> Modules
> ###################################################
>
> # unified2
> # Recommended for most installs
> output unified2: filename snort.unified2, limit 128
>
> include /etc/nsm/CSIS/fifo.output
>
> # 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: LOG_AUTH LOG_ALERT
>
> # pcap
> # output log_tcpdump: tcpdump.log
>
> # database
> # output database: alert, <db_type>, user=<username> password=<password>
> test dbname=<name> host=<hostname>
> # output database: log, <db_type>, user=<username> password=<password>
> test dbname=<name> host=<hostname>
>
> # prelude
> # output alert_prelude
>
> # metadata reference data.  do not modify these lines
> include classification.config
> include 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/specificationBased.rules
>
> # rules downloaded by PulledPork
> include $RULE_PATH/downloaded.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/so_rules.rules
>
> # Event thresholding or suppression commands. See threshold.conf
> include threshold.conf
>
>
>
> ------------------------------------------------------------------------------
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