Snort.conf

版本 2.9.8.3

編譯可用選項：

--enable-gre 
--enable-mpls 
--enable-targetbased 
--enable-ppm 
--enable-perfprofiling 
--enable-zlib 
--enable-active-response 
--enable-normalizer 
--enable-reload 
--enable-react 
--enable-flexresp3

附加信息：

運行 test mode -T 需要使用 -i <interface> 指定網卡，否則 snort 認爲配置無效無法啓動。

配置文件分爲9個部分：

配置網絡環境變量
配置解碼器
配置基本檢測引擎
配置動態加載庫
配置預處理器
配置輸出插件
定製用戶規則集
定製預處理器和解碼器規則集
定製共享目標規則集

1.網絡環境變量

第一步是配置網絡環境變量，查看更多信息閱讀 README.variables

#配置要保護的家庭網
ipvar HOME_NET any
#配置外部的網絡地址，多少情況用“any”
ipvar EXTERNAL_NET any
#列出網絡中的DNS服務
ipvar DNS_SERVERS $HOME_NET
#列出網絡中的SMTP服務
ipvar SMTP_SERVERS $HOME_NET
#列出網絡中的HTTP服務
ipvar HTTP_SERVERS $HOME_NET
#列出網絡中的SQL服務
ipvar SQL_SERVERS $HOME_NET
#列出網絡中的TELNET服務
ipvar TELNET_SERVERS $HOME_NET
#列出網絡中的SSH服務
ipvar SSH_SERVERS $HOME_NET
#列出網絡中的FTP服務
ipvar FTP_SERVERS $HOME_NET
#列出網絡中的SIP服務
ipvar SIP_SERVERS $HOME_NET
#網絡上開放的HTTP的端口，可以指定多個，snorby默認的是 3000
portvar HTTP_PORTS [36,80,81,82,83,84,85,86,87,88,89,90,311,383,555,591,593,631,801,808,818,901,972,1158,1220,1414,1533,1741,1830,1942,2231,2301,2381,2578,2809,2980,3029,3037,3057,3128,3443,3702,4000,4343,4848,5000,5117,5250,5600,5814,6080,6173,6988,7000,7001,7005,7071,7144,7145,7510,7770,7777,7778,7779,8000,8001,8008,8014,8015,8020,8028,8040,8080,8081,8082,8085,8088,8090,8118,8123,8180,8181,8182,8222,8243,8280,8300,8333,8344,8400,8443,8500,8509,8787,8800,8888,8899,8983,9000,9002,9060,9080,9090,9091,9111,9290,9443,9447,9710,9788,9999,10000,11371,12601,13014,15489,19980,29991,33300,34412,34443,34444,40007,41080,44449,50000,50002,51423,53331,55252,55555,56712 3000]
#網絡上開放的SHELL端口 !取非
portvar SHELLCODE_PORTS !80
#網絡上開放的ORCLE數據庫端口 
portvar ORACLE_PORTS 1024:
#網絡上開放的SSH端口 
portvar SSH_PORTS 22
#網絡上開放的FTP端口
portvar FTP_PORTS [21,2100,3535]
#網絡上開放的SIP端口
portvar SIP_PORTS [5060,5061,5600]
#網絡上開放的文件數據端口
portvar FILE_DATA_PORTS [$HTTP_PORTS,110,143]
#網絡上開放的GTP端口
portvar GTP_PORTS [2123,2152,3386]
#其他的參數，不需要修改
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]

配置rules文件路徑（windows推薦使用絕對目錄）：

#規則路徑
var RULE_PATH /etc/snort/rules
#共享函數庫規則路徑
var SO_RULE_PATH ../so_rules
#預處理器規則路徑
var PREPROC_RULE_PATH ../preproc_rules  
#允許列表和屏蔽列表地址
var WHITE_LIST_PATH c:\snort\rules
var BLACK_LIST_PATH c:\snort\rules

2.配置解碼器

第二步是配置解碼器，查看詳細信息閱讀 README.decode

#停止一般解碼事件
config disable_decode_alerts
#停止實驗性TCP可選警報
config disable_tcpopt_experimental_alerts
#停止實驗性TCP絕對警報
config disable_tcpopt_obsolete_alerts
#停止T/TCP警報
config disable_tcpopt_ttcp_alerts
#停止所有其他的TCP類型可選警報
config disable_tcpopt_alerts
#停止無效的IP可選警報
config disable_ipopt_alerts

#如果長度範圍的值（IP TCP UDP）比分組的 th elength 大則警報
# config enable_decode_oversized_alerts

# 同上，但是如果在 Inline 模式下會丟棄分組（需要enable_decode_oversized_alerts）
# config enable_decode_oversized_drops

#配置 IP/TCP checksum 模式
config checksum_mode: all

# 配置最大參考flowbit數字，查看更多閱讀 README.flowbits
# config flowbits_size: 64

# 配置忽略的端口
# config ignore_ports: tcp 21 6667:6671 1356
# config ignore_ports: udp 1:17 53

# 配置非inline運行時活動的反應 查看更多閱讀REAMDE.active
# config response: eth0 attempts 2

# 配置inline時DQA相關選項，查看更多閱讀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> ::= 指定DAQ模塊的so庫路徑


# 配置指定的UID和GID，如果丟掉privs之後運行的snort，查看更多使用命令行 snort -h
#
# config set_gid:
# config set_uid:

# 配置默認的snaplen，snort使用的接口的默認的MTU，查看更多閱讀 README
#
# config snaplen:
#

# 配置snort捕獲流量過濾器默認的規則文件，查看更多使用命令行 snort -h 或者 -F
#
# config bpf_file:
#

# 配置snort輸出日誌的默認的文件夾，查看更多使用命令行 snort -h 或者 -l
#
# config logdir:

3.配置基本的檢測引擎

第三步配置基本的檢測引擎，查看更多信息閱讀 README.decode

# 配置 PCRE 匹配限制
config pcre_match_limit: 3500
config pcre_match_limit_recursion: 1500

# 配置檢測引擎，查看更多閱讀 Snort Manual, Configuring Snort - Includes - Config
config detection: search-method ac-split search-optimize max-pattern-len 20

# 配置事件隊列，查看更多閱讀 README.event_queue
config event_queue: max_queue 8 log 5 order_events content_length


# 配置 GTP 是否啓用， 查看更多請閱讀 README.GTP  
# config enable_gtp

# 每個分組和規則延遲執行，查看更多請閱讀 README.ppm 
# 配置每個分組延遲執行時間
#config ppm: max-pkt-time 250, \
#   fastpath-expensive-packets, \
#   pkt-log

# 配置每個規則延遲執行時間
#config ppm: max-rule-time 200, \
#   threshold 3, \
#   suspend-expensive-rules, \
#   suspend-timeout 20, \
#   rule-log alert

# 配置debug時性能審查（Perf Profiling），查看更多閱讀 README.PerfProfiling

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

# 配置捕獲的協議刷新大小，查看更多閱讀 README.stream5
config paf_max: 16000

4.配置動態加載庫

第四步配置動態加載庫，更多信息查看 Snort Manual, Configuring Snort - Dynamic Modules

# 動態預處理器庫路徑
dynamicpreprocessor directory /usr/local/lib/snort_dynamicpreprocessor/
# 基本預處理器引擎路徑
dynamicengine /usr/local/lib/snort_dynamicengine/libsf_engine.so
# 動態規則庫路徑
dynamicdetection directory /usr/local/lib/snort_dynamicrules

5.配置預處理器

第四步配置預處理器，更多信息查看 Snort - manual, Configuring Snort - Preprocessors

# GTO 控制信道預處理器，查看更多閱讀 README.GTP
# preprocessor gtp: ports { 2123 3386 2152 }

# Inline 分組一般化，查看更多閱讀 README.normalize
# IDS 模式無作用
preprocessor normalize_ip4
preprocessor normalize_tcp: block, rsv, pad, urp, req_urg, req_pay, req_urp, ips, ecn stream
preprocessor normalize_icmp4
preprocessor normalize_ip6
preprocessor normalize_icmp6

# 目標基礎（Target-based）IP碎片整理（defragmentation），查看更多閱讀 README.frag3
preprocessor frag3_global: max_frags 65536
preprocessor frag3_engine: policy windows detect_anomalies overlap_limit 10 min_fragment_length 100 timeout 180

# 目標基礎檢查/流重組，查看更多閱讀 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 1942 2231 2301 2381 2578 2809 2980 3029 3037 3057 3128 3443 3702 4000 4343 4848 5000 5117 5250 5600 5814 6080 6173 6988 7907 7000 7001 7005 7071 7144 7145 7510 7802 7770 7777 7778 7779 \
7801 7900 7901 7902 7903 7904 7905 7906 7908 7909 7910 7911 7912 7913 7914 7915 7916 \
7917 7918 7919 7920 8000 8001 8008 8014 8015 8020 8028 8040 8080 8081 8082 8085 8088 8090 8118 8123 8180 8181 8182 8222 8243 8280 8300 8333 8344 8400 8443 8500 8509 8787 8800 8888 8899 8983 9000 9002 9060 9080 9090 9091 9111 9290 9443 9447 9710 9788 9999 10000 11371 12601 13014 15489 19980 29991 33300 34412 34443 34444 40007 41080 44449 50000 50002 51423 53331 55252 55555 56712
preprocessor stream5_udp: timeout 180

# 性能統計，查看更多閱讀 Snort Manual, Configuring Snort - Preprocessors - Performance Monitor
# preprocessor perfmonitor: time 300 file /var/snort/snort.stats pktcnt 10000

# **HTTP一般化和異常檢測** 查看更多閱讀 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 1533 1741 1830 1942 2231 2301 2381 2578 2809 2980 3029 3037 3057 3128 3443 3702 4000 4343 4848 5000 5117 5250 5600 5814 6080 6173 6988 7000 7001 7005 7071 7144 7145 7510 7770 7777 7778 7779 8000 8001 8008 8014 8015 8020 8028 8040 8080 8081 8082 8085 8088 8090 8118 8123 8180 8181 8182 8222 8243 8280 8300 8333 8344 8400 8443 8500 8509 8787 8800 8888 8899 8983 9000 9002 9060 9080 9090 9091 9111 9290 9443 9447 9710 9788 9999 10000 11371 12601 13014 15489 19980 29991 33300 34412 34443 34444 40007 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 一般化和異常檢測，查看更多閱讀 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

# 後門檢測
preprocessor bo

# FTP / Telnet 一般化和異常檢測，查看更多閱讀 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一般化和異常檢測，查看更多閱讀 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 }

# 端口掃描檢測，查看更多閱讀 README.sfportscan
# preprocessor sfportscan: proto  { all } memcap { 10000000 } sense_level { low }

# ARP欺騙檢測，查看更多閱讀 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異常檢測，查看更多閱讀 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-RP 一般化和異常檢測，查看更多閱讀 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異常檢測，查看更多閱讀 README.dns
preprocessor dns: ports { 53 } enable_rdata_overflow

# SSL異常檢測和流量旁路，查看更多閱讀 README.ssl
preprocessor ssl: ports { 443 465 563 636 989 992 993 994 995 5061 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敏感數據預處理器，查看更多閱讀 README.sensitive_data
preprocessor sensitive_data: alert_threshold 25

# SIP會話發起協議（Session Initiation Protocol preprocessor）預處理器，查看更多閱讀 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預處理器，查看更多閱讀 README.imap
preprocessor imap: \
   ports { 143 } \
   b64_decode_depth 0 \
   qp_decode_depth 0 \
   bitenc_decode_depth 0 \
   uu_decode_depth 0

# POP預處理器，查看更多閱讀 README.pop
preprocessor pop: \
   ports { 110 } \
   b64_decode_depth 0 \
   qp_decode_depth 0 \
   bitenc_decode_depth 0 \
   uu_decode_depth 0

# Modbus預處理器，查看更多閱讀 README.modbus
preprocessor modbus: ports { 502 }

# DNP3預處理器，查看更多閱讀 README.dnp3
preprocessor dnp3: ports { 20000 } \
   memcap 262144 \
   check_crc

# Reputation預處理器，查看更多閱讀 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

6.配置輸出插件

第六步配置輸出插件，查看更多信息閱讀 Snort Manual, Configuring Snort - Output Modules

# unified2 
# 大多數安裝建議此項
# output unified2: filename merged.log, limit 128, nostamp, mpls_event_types, vlan_event_types

# 特殊形式的安裝需要附加的配置
# 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

# 數據中的元數據（metadata），請勿修改
include classification.config
include reference.config

7.自定義規則集

第七步配置自定義規則集，更多信息查看 Snort Manual, Writing Snort Rules

*所有分類默認都開啓了。

# 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/blacklist.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-other.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

8.自定義預處理器和警報解碼器

第八步自定義預處理器和警報解碼器，查看更多閱讀 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

9.自定義分享的目標Snort規則

第九步自定義分享的目標Snort規則，查看更多閱讀 http://vrt-blog.snort.org/2009/01/using-vrt-certified-shared-object-rules.html

# dynamic library rules
# include $SO_RULE_PATH/browser-ie.rules
# include $SO_RULE_PATH/browser-other.rules
# include $SO_RULE_PATH/exploit-kit.rules
# include $SO_RULE_PATH/file-flash.rules
# include $SO_RULE_PATH/file-image.rules
# include $SO_RULE_PATH/file-java.rules
# include $SO_RULE_PATH/file-multimedia.rules
# include $SO_RULE_PATH/file-office.rules
# include $SO_RULE_PATH/file-other.rules
# include $SO_RULE_PATH/file-pdf.rules
# include $SO_RULE_PATH/indicator-shellcode.rules
# include $SO_RULE_PATH/malware-cnc.rules
# include $SO_RULE_PATH/malware-other.rules
# include $SO_RULE_PATH/netbios.rules
# include $SO_RULE_PATH/os-linux.rules
# include $SO_RULE_PATH/os-other.rules
# include $SO_RULE_PATH/os-windows.rules
# include $SO_RULE_PATH/policy-social.rules
# include $SO_RULE_PATH/protocol-dns.rules
# include $SO_RULE_PATH/protocol-nntp.rules
# include $SO_RULE_PATH/protocol-other.rules
# include $SO_RULE_PATH/protocol-snmp.rules
# include $SO_RULE_PATH/protocol-voip.rules
# include $SO_RULE_PATH/pua-p2p.rules
# include $SO_RULE_PATH/server-apache.rules
# include $SO_RULE_PATH/server-iis.rules
# include $SO_RULE_PATH/server-mail.rules
# include $SO_RULE_PATH/server-mysql.rules
# include $SO_RULE_PATH/server-oracle.rules
# include $SO_RULE_PATH/server-other.rules
# include $SO_RULE_PATH/server-webapp.rules

# legacy dynamic library rule files
# include $SO_RULE_PATH/bad-traffic.rules
# include $SO_RULE_PATH/browser-ie.rules
# include $SO_RULE_PATH/chat.rules
# include $SO_RULE_PATH/dos.rules
# include $SO_RULE_PATH/exploit.rules
# include $SO_RULE_PATH/file-flash.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

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Snort - 配置文件

Snort.conf

1.網絡環境變量

2.配置解碼器

3.配置基本的檢測引擎

4.配置動態加載庫

5.配置預處理器

6.配置輸出插件

7.自定義規則集

8.自定義預處理器和警報解碼器

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