Snort problem with installation of some rules



  • I have installed Snort in Windows 2008 with the line in snort.conf:

    portvar FILE_DATA_PORTS [$HTTP_PORTS,110,143]
    

    This is my snort.conf

    #--------------------------------------------------
    #   VRT Rule Packages Snort.conf
    #
    #   For more information visit us at:
    #     http://www.snort.org                   Snort Website
    #     http://vrt-blog.snort.org/    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 : 2.9.6.0
    #
    #     Snort build options:
    #     OPTIONS : --enable-gre --enable-mpls --enable-targetbased --enable-ppm --enable-perfprofiling --enable-zlib --enable-active-response --enable-normalizer --enable-reload --enable-react --enable-flexresp3
    #
    #     Additional information:
    #     This configuration file enables active response, to run snort in
    #     test mode -T you are required to supply an interface -i <interface>#     or test mode will fail to fully validate the configuration and
    #     exit with a FATAL error
    #--------------------------------------------------
    
    ###################################################
    # 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
    ipvar HOME_NET any
    
    # 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 [36,80,81,82,83,84,85,86,87,88,89,90,311,383,555,591,593,631,801,808,818,901,972,1158,1220,1414,1533,1741,1830,2231,2301,2381,2809,3029,3037,3057,3128,3443,3702,4000,4343,4848,5117,5250,6080,6173,6988,7000,7001,7144,7145,7510,7770,7777,7779,8000,8008,8014,8028,8080,8081,8082,8085,8088,8090,8118,8123,8180,8181,8222,8243,8280,8300,8500,8509,8800,8888,8899,9000,9060,9080,9090,9091,9111,9443,9999,10000,11371,12601,15489,29991,33300,34412,34443,34444,41080,44449,50000,50002,51423,53331,55252,55555,56712] 
    
    # 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]
    
    # 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
    
    # 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 c:\Snort\rules
    var BLACK_LIST_PATH c:\Snort\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<br=""># 
    
    <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 5 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 c:\Snort\lib\snort_dynamicpreprocessor
    
    #dynamicpreprocessor c:\Snort\lib\snort_dynamicpreprocessor\sf_dce2.dll
    #dynamicpreprocessor c:\Snort\lib\snort_dynamicpreprocessor\sf_dnp3.dll
    #dynamicpreprocessor c:\Snort\lib\snort_dynamicpreprocessor\sf_dns.dll
    #dynamicpreprocessor c:\Snort\lib\snort_dynamicpreprocessor\sf_ftptelnet.dll
    #dynamicpreprocessor c:\Snort\lib\snort_dynamicpreprocessor\sf_gtp.dll
    #dynamicpreprocessor c:\Snort\lib\snort_dynamicpreprocessor\sf_imap.dll
    #dynamicpreprocessor c:\Snort\lib\snort_dynamicpreprocessor\sf_modbus.dll
    #dynamicpreprocessor c:\Snort\lib\snort_dynamicpreprocessor\sf_pop.dll
    #dynamicpreprocessor c:\Snort\lib\snort_dynamicpreprocessor\sf_reputation.dll
    #dynamicpreprocessor c:\Snort\lib\snort_dynamicpreprocessor\sf_sdf.dll
    #dynamicpreprocessor c:\Snort\lib\snort_dynamicpreprocessor\sf_sip.dll
    #dynamicpreprocessor c:\Snort\lib\snort_dynamicpreprocessor\sf_smtp.dll
    #dynamicpreprocessor c:\Snort\lib\snort_dynamicpreprocessor\sf_ssh.dll
    #dynamicpreprocessor c:\Snort\lib\snort_dynamicpreprocessor\sf_ssl.dll
    
    # 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
    ###################################################
    
    # 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 70 79 109 110 111 113 119 135 136 137 139 143 \
            161 445 513 514 587 593 691 1433 1521 1741 2100 3306 6070 6665 6666 6667 6668 6669 \
            7000 8181 32770 32771 32772 32773 32774 32775 32776 32777 32778 32779, \
        ports both 36 80 81 82 83 84 85 86 87 88 89 90 110 311 383 443 465 563 555 591 593 631 636 801 808 818 901 972 989 992 993 994 995 1158 1220 1414 1533 1741 1830 2231 2301 2381 2809 3029 3037 3057 3128 3443 3702 4000 4343 4848 5117 5250 6080 6173 6988 7907 7000 7001 7144 7145 7510 7802 7770 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 8082 8085 8088 8090 8118 8123 8180 8181 8222 8243 8280 8300 8500 8509 8800 8888 8899 9000 9060 9080 9090 9091 9111 9443 9999 10000 11371 12601 15489 29991 33300 34412 34443 34444 41080 44449 50000 50002 51423 53331 55252 55555 56712
    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 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 200 \
        small_chunk_length { 10 5 } \
        ports { 36 80 81 82 83 84 85 86 87 88 89 90 311 383 555 591 593 631 801 808 818 901 972 1158 1220 1414 1741 1830 2231 2301 2381 2809 3029 3037 3057 3128 3443 3702 4000 4343 4848 5117 5250 6080 6173 6988 7000 7001 7144 7145 7510 7770 7777 7779 8000 8008 8014 8028 8080 8081 8082 8085 8088 8090 8118 8123 8180 8181 8222 8243 8280 8300 8500 8509 8800 8888 8899 9000 9060 9080 9090 9091 9111 9443 9999 10000 11371 12601 15489 29991 33300 34412 34443 34444 41080 44449 50000 50002 51423 53331 55252 55555 56712 } \
        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 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: LOG_AUTH LOG_ALERT
    #output alert_fast: alerts.ids
    
    #output alert_syslog: host=127.0.0.1:514, LOG_AUTH LOG_ALERT
    
    # pcap
    # output log_tcpdump: tcpdump.log
    output alert_fast: alert.ids
    
    # 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/app-detect.rules
    include $RULE_PATH/attack-responses.rules
    include $RULE_PATH/backdoor.rules
    include $RULE_PATH/bad-traffic.rules
    include $RULE_PATH/black_list.rules
    include $RULE_PATH/botnet-cnc.rules
    include $RULE_PATH/browser-chrome.rules
    include $RULE_PATH/browser-firefox.rules
    include $RULE_PATH/browser-ie.rules
    include $RULE_PATH/browser-other.rules
    include $RULE_PATH/browser-plugins.rules
    include $RULE_PATH/browser-webkit.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/experimental.rules
    include $RULE_PATH/exploit-kit.rules
    include $RULE_PATH/exploit.rules
    include $RULE_PATH/file-executable.rules
    include $RULE_PATH/file-flash.rules
    include $RULE_PATH/file-identify.rules
    include $RULE_PATH/file-image.rules
    include $RULE_PATH/file-java.rules
    include $RULE_PATH/file-multimedia.rules
    include $RULE_PATH/file-office.rules
    include $RULE_PATH/file-other.rules
    include $RULE_PATH/file-pdf.rules
    include $RULE_PATH/finger.rules
    include $RULE_PATH/ftp.rules
    include $RULE_PATH/icmp-info.rules
    include $RULE_PATH/icmp.rules
    include $RULE_PATH/imap.rules
    include $RULE_PATH/indicator-compromise.rules
    include $RULE_PATH/indicator-obfuscation.rules
    include $RULE_PATH/indicator-scan.rules
    include $RULE_PATH/indicator-shellcode.rules
    include $RULE_PATH/info.rules
    include $RULE_PATH/malware-backdoor.rules
    include $RULE_PATH/malware-cnc.rules
    include $RULE_PATH/malware-other.rules
    include $RULE_PATH/malware-tools.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/os-linux.rules
    include $RULE_PATH/os-mobile.rules
    include $RULE_PATH/os-other.rules
    include $RULE_PATH/os-solaris.rules
    include $RULE_PATH/os-windows.rules
    include $RULE_PATH/other-ids.rules
    include $RULE_PATH/p2p.rules
    include $RULE_PATH/phishing-spam.rules
    include $RULE_PATH/policy-multimedia.rules
    include $RULE_PATH/policy-other.rules
    include $RULE_PATH/policy.rules
    include $RULE_PATH/policy-social.rules
    include $RULE_PATH/policy-spam.rules
    include $RULE_PATH/pop2.rules
    include $RULE_PATH/pop3.rules
    include $RULE_PATH/protocol-dns.rules
    include $RULE_PATH/protocol-finger.rules
    include $RULE_PATH/protocol-ftp.rules
    include $RULE_PATH/protocol-icmp.rules
    include $RULE_PATH/protocol-imap.rules
    include $RULE_PATH/protocol-nntp.rules
    include $RULE_PATH/protocol-pop.rules
    include $RULE_PATH/protocol-rpc.rules
    include $RULE_PATH/protocol-scada.rules
    include $RULE_PATH/protocol-services.rules
    include $RULE_PATH/protocol-snmp.rules
    include $RULE_PATH/protocol-telnet.rules
    include $RULE_PATH/protocol-tftp.rules
    include $RULE_PATH/protocol-voip.rules
    include $RULE_PATH/pua-adware.rules
    include $RULE_PATH/pua-other.rules
    include $RULE_PATH/pua-p2p.rules
    include $RULE_PATH/pua-toolbars.rules
    include $RULE_PATH/rpc.rules
    include $RULE_PATH/rservices.rules
    include $RULE_PATH/scada.rules
    include $RULE_PATH/scan.rules
    include $RULE_PATH/server-apache.rules
    include $RULE_PATH/server-iis.rules
    include $RULE_PATH/server-mail.rules
    include $RULE_PATH/server-mssql.rules
    include $RULE_PATH/server-mysql.rules
    include $RULE_PATH/server-oracle.rules
    include $RULE_PATH/server-other.rules
    include $RULE_PATH/server-samba.rules
    include $RULE_PATH/server-webapp.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-blog.snort.org/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/snmp.rules
    # include $SO_RULE_PATH/specific-threats.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
    
    I have this rules to detect sql injection and xss stored in local.rules:
    
    

    alert tcp $EXTERNAL_NET any -> $HOME_NET $HTTP_PORT (msg:"[The system detected Sql Injection Attack-1]"; flow:to_server,established; uricontent:"/?id";nocase;pcre:"/(((?id=)|(?id%3D))(\w*)(((')|(%27))((\w+)|(\W+)|(\D+)|(\d+))))/ix"; classtype:web-application-attack; sid:1000015; rev:1;)
    alert tcp $EXTERNAL_NET any -> $HOME_NET $HTTP_PORT  (msg:"[The system detected Sql Injection Attack-2]"; flow:to_server,established; uricontent:"/?id";nocase; pcre:"/(((?id=)|(?id%3D)).{0,}(%3b)|(;).{0,}((#)|(%23)))/ix"; classtype:web-application-attack; sid:1000011; rev:1;)
    drop tcp $EXTERNAL_NET any -> $HOME_NET $HTTP_PORT  (msg:"[The system detected Sql Injection Attack-2]"; flow:to_server,established; uricontent:"/?id";nocase; pcre:"/(((?id=)|(?id%3D)).{0,}(%3b)|(;).{0,}((#)|(%23)))/ix"; classtype:web-application-attack; sid:1000011; rev:1;)
    drop tcp $EXTERNAL_NET any -> $HOME_NET 80 (msg:"Web-Attack [Command execution attempt-2]"; flow:to_server,established; uricontent:"/exec/"; nocase; pcre:"/((((\w*)|(\d*)|(\D*)|(.))((%3b)|(;)((\w)|(\d*)|(\D*)|(.))[^&submit])|((%7C)|(|)[^&submit])|((%26)|(&)[^submit])(\w+)[&submit]))/ix"; classtype:web-application-attack; sid:10000018;rev:1;)
    alert tcp $EXTERNAL_NET any -> $HOME_NET 80 (msg:"[XSS Attack--3]"; flow:to_server,established; pcre:"/(((%3e%3c)|(%3c))((\w*)([.]|([\n].[\n])|[\r].[\r])(\w))|((%[0-9a-f]+)+)(%3e))/ix"; classtype:web-application-attack; sid:1000071; rev:1;)
    drop tcp  $EXTERNAL_NET any -> $HOME_NET 80 (msg:"[XSS Attack]"; flow:to_server,established; pcre:"/(((%3e)+|(%3e%3c)+|(%3c)+))(((\w*)([.]|([\n].[\n])|[\r].[\r])(\w))|((%[0-9a-f]+)+))(%3e))/ix"; classtype:web-application-attack; sid:1000071; rev:1;)
    drop tcp  $EXTERNAL_NET any -> $HOME_NET 80 (msg:"[File Inclusion Attempt-With File traversal]"; flow:to_server,established;uricontent:"/?page=";nocase; pcre:"/(((/?page=)|(/?page%3D))((((.)|(%2e))+((/)|(%2f)))+(\w)))/ix"; classtype:web-application-attack; sid:10000122; rev:1;)
    drop tcp $EXTERNAL_NET any -> $HOME_NET 80(msg:"[Remot-File Inclusion Attempt]"; flow:to_server,established; pcre:"/(((/?page=)|(/?page%3D))((\w)
    (http://))+(\w)*)/ix"; classtype:web-application-attack; sid:10000121; rev:1;)
    drop tcp $EXTERNAL_NET any -> $HTTP_SERVERS $HTTP_PORTS (msg:"ET WEB_SERVER Script tag in URI, Possible Cross Site Scripting Attempt"; flow:to_server,established;  content:""; fast_pattern:only; nocase; http_uri; reference:url,ha.ckers.org/xss.html; reference:url,doc.emergingthreats.net/2009714; classtype:web-application-attack; sid:2009714; rev:6;)
    drop tcp $EXTERNAL_NET any -> $HTTP_SERVERS $HTTP_PORTS (msg:"ET WEB_SERVER Possible SQL Injection Attempt UNION SELECT"; flow:established,to_server; content:"UNION"; nocase; http_uri; content:"SELECT"; nocase; http_uri; pcre:"/UNION.+SELECT/Ui"; reference:url,en.wikipedia.org/wiki/SQL_injection; reference:url,doc.emergingthreats.net/2006446; classtype:web-application-attack; sid:2006446; rev:11;)

    
    And gave me the error ***PortVar Lookup failed on '$HTTP_PORT when I do the command:
    
    

    snort -d -A console -i2 -c c:\Snort\etc\snort.conf -l c:\Snort\log -K ascii

    
    And not run that rules if I delete the rules the system runs perfect.
    what can be the cause of the error or what I need to add or remove to my configuration to be able to run that rules?
    Of course I'm not using the default port of SQL Server we changed.
    Thank you</dir></value></name></var></mode></type></var></mode> </dir></type></interface> 
    


  • @coer:

    I have installed Snort in Windows 2008 with the line in snort.conf:

    portvar FILE_DATA_PORTS [$HTTP_PORTS,110,143]
    

    This is my snort.conf

    #--------------------------------------------------
    #   VRT Rule Packages Snort.conf
    #
    #   For more information visit us at:
    #     http://www.snort.org                   Snort Website
    #     http://vrt-blog.snort.org/    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 : 2.9.6.0
    #
    #     Snort build options:
    #     OPTIONS : --enable-gre --enable-mpls --enable-targetbased --enable-ppm --enable-perfprofiling --enable-zlib --enable-active-response --enable-normalizer --enable-reload --enable-react --enable-flexresp3
    #
    #     Additional information:
    #     This configuration file enables active response, to run snort in
    #     test mode -T you are required to supply an interface -i <interface>#     or test mode will fail to fully validate the configuration and
    #     exit with a FATAL error
    #--------------------------------------------------
    
    ###################################################
    # 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
    ipvar HOME_NET any
    
    # 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 [36,80,81,82,83,84,85,86,87,88,89,90,311,383,555,591,593,631,801,808,818,901,972,1158,1220,1414,1533,1741,1830,2231,2301,2381,2809,3029,3037,3057,3128,3443,3702,4000,4343,4848,5117,5250,6080,6173,6988,7000,7001,7144,7145,7510,7770,7777,7779,8000,8008,8014,8028,8080,8081,8082,8085,8088,8090,8118,8123,8180,8181,8222,8243,8280,8300,8500,8509,8800,8888,8899,9000,9060,9080,9090,9091,9111,9443,9999,10000,11371,12601,15489,29991,33300,34412,34443,34444,41080,44449,50000,50002,51423,53331,55252,55555,56712] 
    
    # 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]
    
    # 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
    
    # 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 c:\Snort\rules
    var BLACK_LIST_PATH c:\Snort\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<br=""># 
    
    <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 5 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 c:\Snort\lib\snort_dynamicpreprocessor
    
    #dynamicpreprocessor c:\Snort\lib\snort_dynamicpreprocessor\sf_dce2.dll
    #dynamicpreprocessor c:\Snort\lib\snort_dynamicpreprocessor\sf_dnp3.dll
    #dynamicpreprocessor c:\Snort\lib\snort_dynamicpreprocessor\sf_dns.dll
    #dynamicpreprocessor c:\Snort\lib\snort_dynamicpreprocessor\sf_ftptelnet.dll
    #dynamicpreprocessor c:\Snort\lib\snort_dynamicpreprocessor\sf_gtp.dll
    #dynamicpreprocessor c:\Snort\lib\snort_dynamicpreprocessor\sf_imap.dll
    #dynamicpreprocessor c:\Snort\lib\snort_dynamicpreprocessor\sf_modbus.dll
    #dynamicpreprocessor c:\Snort\lib\snort_dynamicpreprocessor\sf_pop.dll
    #dynamicpreprocessor c:\Snort\lib\snort_dynamicpreprocessor\sf_reputation.dll
    #dynamicpreprocessor c:\Snort\lib\snort_dynamicpreprocessor\sf_sdf.dll
    #dynamicpreprocessor c:\Snort\lib\snort_dynamicpreprocessor\sf_sip.dll
    #dynamicpreprocessor c:\Snort\lib\snort_dynamicpreprocessor\sf_smtp.dll
    #dynamicpreprocessor c:\Snort\lib\snort_dynamicpreprocessor\sf_ssh.dll
    #dynamicpreprocessor c:\Snort\lib\snort_dynamicpreprocessor\sf_ssl.dll
    
    # 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
    ###################################################
    
    # 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 70 79 109 110 111 113 119 135 136 137 139 143 \
            161 445 513 514 587 593 691 1433 1521 1741 2100 3306 6070 6665 6666 6667 6668 6669 \
            7000 8181 32770 32771 32772 32773 32774 32775 32776 32777 32778 32779, \
        ports both 36 80 81 82 83 84 85 86 87 88 89 90 110 311 383 443 465 563 555 591 593 631 636 801 808 818 901 972 989 992 993 994 995 1158 1220 1414 1533 1741 1830 2231 2301 2381 2809 3029 3037 3057 3128 3443 3702 4000 4343 4848 5117 5250 6080 6173 6988 7907 7000 7001 7144 7145 7510 7802 7770 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 8082 8085 8088 8090 8118 8123 8180 8181 8222 8243 8280 8300 8500 8509 8800 8888 8899 9000 9060 9080 9090 9091 9111 9443 9999 10000 11371 12601 15489 29991 33300 34412 34443 34444 41080 44449 50000 50002 51423 53331 55252 55555 56712
    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 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 200 \
        small_chunk_length { 10 5 } \
        ports { 36 80 81 82 83 84 85 86 87 88 89 90 311 383 555 591 593 631 801 808 818 901 972 1158 1220 1414 1741 1830 2231 2301 2381 2809 3029 3037 3057 3128 3443 3702 4000 4343 4848 5117 5250 6080 6173 6988 7000 7001 7144 7145 7510 7770 7777 7779 8000 8008 8014 8028 8080 8081 8082 8085 8088 8090 8118 8123 8180 8181 8222 8243 8280 8300 8500 8509 8800 8888 8899 9000 9060 9080 9090 9091 9111 9443 9999 10000 11371 12601 15489 29991 33300 34412 34443 34444 41080 44449 50000 50002 51423 53331 55252 55555 56712 } \
        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 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: LOG_AUTH LOG_ALERT
    #output alert_fast: alerts.ids
    
    #output alert_syslog: host=127.0.0.1:514, LOG_AUTH LOG_ALERT
    
    # pcap
    # output log_tcpdump: tcpdump.log
    output alert_fast: alert.ids
    
    # 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/app-detect.rules
    include $RULE_PATH/attack-responses.rules
    include $RULE_PATH/backdoor.rules
    include $RULE_PATH/bad-traffic.rules
    include $RULE_PATH/black_list.rules
    include $RULE_PATH/botnet-cnc.rules
    include $RULE_PATH/browser-chrome.rules
    include $RULE_PATH/browser-firefox.rules
    include $RULE_PATH/browser-ie.rules
    include $RULE_PATH/browser-other.rules
    include $RULE_PATH/browser-plugins.rules
    include $RULE_PATH/browser-webkit.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/experimental.rules
    include $RULE_PATH/exploit-kit.rules
    include $RULE_PATH/exploit.rules
    include $RULE_PATH/file-executable.rules
    include $RULE_PATH/file-flash.rules
    include $RULE_PATH/file-identify.rules
    include $RULE_PATH/file-image.rules
    include $RULE_PATH/file-java.rules
    include $RULE_PATH/file-multimedia.rules
    include $RULE_PATH/file-office.rules
    include $RULE_PATH/file-other.rules
    include $RULE_PATH/file-pdf.rules
    include $RULE_PATH/finger.rules
    include $RULE_PATH/ftp.rules
    include $RULE_PATH/icmp-info.rules
    include $RULE_PATH/icmp.rules
    include $RULE_PATH/imap.rules
    include $RULE_PATH/indicator-compromise.rules
    include $RULE_PATH/indicator-obfuscation.rules
    include $RULE_PATH/indicator-scan.rules
    include $RULE_PATH/indicator-shellcode.rules
    include $RULE_PATH/info.rules
    include $RULE_PATH/malware-backdoor.rules
    include $RULE_PATH/malware-cnc.rules
    include $RULE_PATH/malware-other.rules
    include $RULE_PATH/malware-tools.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/os-linux.rules
    include $RULE_PATH/os-mobile.rules
    include $RULE_PATH/os-other.rules
    include $RULE_PATH/os-solaris.rules
    include $RULE_PATH/os-windows.rules
    include $RULE_PATH/other-ids.rules
    include $RULE_PATH/p2p.rules
    include $RULE_PATH/phishing-spam.rules
    include $RULE_PATH/policy-multimedia.rules
    include $RULE_PATH/policy-other.rules
    include $RULE_PATH/policy.rules
    include $RULE_PATH/policy-social.rules
    include $RULE_PATH/policy-spam.rules
    include $RULE_PATH/pop2.rules
    include $RULE_PATH/pop3.rules
    include $RULE_PATH/protocol-dns.rules
    include $RULE_PATH/protocol-finger.rules
    include $RULE_PATH/protocol-ftp.rules
    include $RULE_PATH/protocol-icmp.rules
    include $RULE_PATH/protocol-imap.rules
    include $RULE_PATH/protocol-nntp.rules
    include $RULE_PATH/protocol-pop.rules
    include $RULE_PATH/protocol-rpc.rules
    include $RULE_PATH/protocol-scada.rules
    include $RULE_PATH/protocol-services.rules
    include $RULE_PATH/protocol-snmp.rules
    include $RULE_PATH/protocol-telnet.rules
    include $RULE_PATH/protocol-tftp.rules
    include $RULE_PATH/protocol-voip.rules
    include $RULE_PATH/pua-adware.rules
    include $RULE_PATH/pua-other.rules
    include $RULE_PATH/pua-p2p.rules
    include $RULE_PATH/pua-toolbars.rules
    include $RULE_PATH/rpc.rules
    include $RULE_PATH/rservices.rules
    include $RULE_PATH/scada.rules
    include $RULE_PATH/scan.rules
    include $RULE_PATH/server-apache.rules
    include $RULE_PATH/server-iis.rules
    include $RULE_PATH/server-mail.rules
    include $RULE_PATH/server-mssql.rules
    include $RULE_PATH/server-mysql.rules
    include $RULE_PATH/server-oracle.rules
    include $RULE_PATH/server-other.rules
    include $RULE_PATH/server-samba.rules
    include $RULE_PATH/server-webapp.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-blog.snort.org/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/snmp.rules
    # include $SO_RULE_PATH/specific-threats.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
    
    I have this rules to detect sql injection and xss stored in local.rules:
    
    

    alert tcp $EXTERNAL_NET any -> $HOME_NET $HTTP_PORT (msg:"[The system detected Sql Injection Attack-1]"; flow:to_server,established; uricontent:"/?id";nocase;pcre:"/(((?id=)|(?id%3D))(\w*)(((')|(%27))((\w+)|(\W+)|(\D+)|(\d+))))/ix"; classtype:web-application-attack; sid:1000015; rev:1;)
    alert tcp $EXTERNAL_NET any -> $HOME_NET $HTTP_PORT  (msg:"[The system detected Sql Injection Attack-2]"; flow:to_server,established; uricontent:"/?id";nocase; pcre:"/(((?id=)|(?id%3D)).{0,}(%3b)|(;).{0,}((#)|(%23)))/ix"; classtype:web-application-attack; sid:1000011; rev:1;)
    drop tcp $EXTERNAL_NET any -> $HOME_NET $HTTP_PORT  (msg:"[The system detected Sql Injection Attack-2]"; flow:to_server,established; uricontent:"/?id";nocase; pcre:"/(((?id=)|(?id%3D)).{0,}(%3b)|(;).{0,}((#)|(%23)))/ix"; classtype:web-application-attack; sid:1000011; rev:1;)
    drop tcp $EXTERNAL_NET any -> $HOME_NET 80 (msg:"Web-Attack [Command execution attempt-2]"; flow:to_server,established; uricontent:"/exec/"; nocase; pcre:"/((((\w*)|(\d*)|(\D*)|(.))((%3b)|(;)((\w)|(\d*)|(\D*)|(.))[^&submit])|((%7C)|(|)[^&submit])|((%26)|(&)[^submit])(\w+)[&submit]))/ix"; classtype:web-application-attack; sid:10000018;rev:1;)
    alert tcp $EXTERNAL_NET any -> $HOME_NET 80 (msg:"[XSS Attack--3]"; flow:to_server,established; pcre:"/(((%3e%3c)|(%3c))((\w*)([.]|([\n].[\n])|[\r].[\r])(\w))|((%[0-9a-f]+)+)(%3e))/ix"; classtype:web-application-attack; sid:1000071; rev:1;)
    drop tcp  $EXTERNAL_NET any -> $HOME_NET 80 (msg:"[XSS Attack]"; flow:to_server,established; pcre:"/(((%3e)+|(%3e%3c)+|(%3c)+))(((\w*)([.]|([\n].[\n])|[\r].[\r])(\w))|((%[0-9a-f]+)+))(%3e))/ix"; classtype:web-application-attack; sid:1000071; rev:1;)
    drop tcp  $EXTERNAL_NET any -> $HOME_NET 80 (msg:"[File Inclusion Attempt-With File traversal]"; flow:to_server,established;uricontent:"/?page=";nocase; pcre:"/(((/?page=)|(/?page%3D))((((.)|(%2e))+((/)|(%2f)))+(\w)))/ix"; classtype:web-application-attack; sid:10000122; rev:1;)
    drop tcp $EXTERNAL_NET any -> $HOME_NET 80(msg:"[Remot-File Inclusion Attempt]"; flow:to_server,established; pcre:"/(((/?page=)|(/?page%3D))((\w)
    (http://))+(\w)*)/ix"; classtype:web-application-attack; sid:10000121; rev:1;)
    drop tcp $EXTERNAL_NET any -> $HTTP_SERVERS $HTTP_PORTS (msg:"ET WEB_SERVER Script tag in URI, Possible Cross Site Scripting Attempt"; flow:to_server,established;  content:""; fast_pattern:only; nocase; http_uri; reference:url,ha.ckers.org/xss.html; reference:url,doc.emergingthreats.net/2009714; classtype:web-application-attack; sid:2009714; rev:6;)
    drop tcp $EXTERNAL_NET any -> $HTTP_SERVERS $HTTP_PORTS (msg:"ET WEB_SERVER Possible SQL Injection Attempt UNION SELECT"; flow:established,to_server; content:"UNION"; nocase; http_uri; content:"SELECT"; nocase; http_uri; pcre:"/UNION.+SELECT/Ui"; reference:url,en.wikipedia.org/wiki/SQL_injection; reference:url,doc.emergingthreats.net/2006446; classtype:web-application-attack; sid:2006446; rev:11;)

    
    And gave me the error ***PortVar Lookup failed on '$HTTP_PORT when I do the command:
    
    

    snort -d -A console -i2 -c c:\Snort\etc\snort.conf -l c:\Snort\log -K ascii

    
    And not run that rules if I delete the rules the system runs perfect.
    what can be the cause of the error or what I need to add or remove to my configuration to be able to run that rules?
    Of course I'm not using the default port of SQL Server we changed.
    Thank you
    </dir></value></name></var></mode></type></var></mode> </dir></type></interface> 
    

    Well, this is a discussion forum for FreeBSD-based pfSense (no Windows around here.. ;)), but I think I see your problem.

    You have $HTTP_PORTS defined in your snort.conf file (which is correct), but in the rule you posted you have $HTTP_PORT.  They are NOT the same variable to Snort.  You are missing the "S" in $HTTP_PORTS in your first three local rules.



  • Oh my god hehe what a fool is working now. Thank you because someone entered and did a sql inject.
    Just to finalize imchanged the port of SQL no matter that ok and with this command:

    snort -d -A console -i2 -c c:\Snort\etc\snort.conf -l c:\Snort\log -K ascii
    

    Is supposed the system running and protecting droping sal injection attacks ok? or I need to add something more to the command line.
    Thank you



  • @coer:

    Oh my god hehe what a fool is working now. Thank you because someone entered and did a sql inject.
    Just to finalize imchanged the port of SQL no matter that ok and with this command:

    snort -d -A console -i2 -c c:\Snort\etc\snort.conf -l c:\Snort\log -K ascii
    

    Is supposed the system running and protecting droping sal injection attacks ok? or I need to add something more to the command line.
    Thank you

    This is OK, but just be aware that logging in ASCII is not terribly efficient for Snort.  At low traffic levels on a powerful box it is OK, but on very busy networks Snort might drop packets (that is, miss inspecting them) while it is trying to write a large ASCII log packet.  Most folks let Snort log in the binary unified2 mode and then use a tool like Barnyard2 to read that binary log and then write to ASCII or a MySQL database.



  • Ok thank you for all just to understand more that rules I typed in the first topic what really do? becau I heard the drop is only for IPS mode and Windows I'm not sure it does. And the only "alerts" what do?Just found the attack then make a reset or something? Because we don't only need to detect and see we need a ban for the action. Look this topic:

    https://forum.pfsense.org/index.php?topic=52148.0

    That guy did similar thing but is not clear if he ran like IPS or like the command line I gave you the snort and he say he ban the attacks for that my question I added also that 3 more alert rules of that guy but that alert rules are automatic ban the attacks? Or what it means with ban from that guy he made another thing to catch or just only the alerts.
    Thank you for the help we are a school that someone made atack like I said you and your help are amazing because we don't want that happen again or at least minimize.
    Thank you for help



  • @coer:

    Ok thank you for all just to understand more that rules I typed in the first topic what really do? becau I heard the drop is only for IPS mode and Windows I'm not sure it does. And the only "alerts" what do?Just found the attack then make a reset or something? Because we don't only need to detect and see we need a ban for the action. Look this topic:

    https://forum.pfsense.org/index.php?topic=52148.0

    That guy did similar thing but is not clear if he ran like IPS or like the command line I gave you the snort and he say he ban the attacks for that my question I added also that 3 more alert rules of that guy but that alert rules are automatic ban the attacks? Or what it means with ban from that guy he made another thing to catch or just only the alerts.
    Thank you for the help we are a school that someone made atack like I said you and your help are amazing because we don't want that happen again or at least minimize.
    Thank you for help

    Only a few platforms support true inline mode with "drop" rules, and Windows is not one of those platforms.  So Snort on Windows can alert you of a problem, but it can't block the traffic.  Snort on pfSense can alert on and block offending traffic.  Same thing for Snort on most Linux platforms.  So if you want Snort to actually block offending traffic and not just alert on it, then you need to switch platforms…and since this is a pfSense forum, I highly recommend pfSense with the Snort package ;)

    Bill



  • ok in case of use a linux server with snort installed with some ip for example lll.lll.lll.lll in other place in the world can we protect our windows server on another part of the world with ip www.www.www.www? If yes I guess that is just to define the IP tomprotect in ofense and that's all or is more complicated?
    Thank you



  • @coer:

    ok in case of use a linux server with snort installed with some ip for example lll.lll.lll.lll in other place in the world can we protect our windows server on another part of the world with ip www.www.www.www? If yes I guess that is just to define the IP tomprotect in ofense and that's all or is more complicated?
    Thank you

    You can only protect devices on networks that are "behind" the Snort installation.  What I mean by "behind" is that traffic routed from the Internet (or any other network you consider potentially hostile) to the server you want to protect must come and go through the Snort machine. That's the only way Snort could block offending traffic.

    I may not be understanding your question completely.  I don't mean to insult, but from your posts I am guessing English is not your primary language.  It is a bit difficult for me to completely understand what you are asking me with the translation.  If you have servers located in two geographically diverse locations, the only way you could have Snort on one of them protect a Windows install on the other one is if they were both part of an interconnected VPN and the Snort machine is the gateway into and out of the VPN.  Anything else and the answer is "no", you generally can't do what you are asking with geographically diverse networks.

    Bill



  • Thank you that is the answer.



  • @coer:

    Thank you that is the answer.

    Glad I could help.. :)

    Bill


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