[研究] Snort 2.9.6.1 + Barnyard 安裝 (CentOS 6.5 x64)
2014-06-20
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這幾篇是相關的 ( 3 大步驟)
[研究] snort-2.9.6.1.tar.gz (CentOS 6.5 x64) 快速安裝程式
http://shaurong.blogspot.tw/2014/06/snort-2961targz-centos-65-x64.html
[研究] Snort 2.9.6.1 + Barnyard 2.13 安裝 (CentOS 6.5 x64) 快速安裝程式
http://shaurong.blogspot.tw/2014/06/snort-2961-barnyard-213-centos-65-x64.html
或
[研究] Snort 2.9.6.1 + Barnyard 安裝 (CentOS 6.5 x64)
http://shaurong.blogspot.tw/2014/06/snort-2961-barnyard-centos-65-x64.html
[研究] Snort 2.9.6.1 + Barnyard + BASE 安裝 (CentOS 6.5 x64) 快速安裝程式
http://shaurong.blogspot.tw/2014/06/snort-2961-barnyard-base-centos-65-x64_20.html
或
[研究] Snort 2.9.6.1 + Barnyard + BASE 安裝 (CentOS 6.5 x64)
http://shaurong.blogspot.tw/2014/06/snort-2961-barnyard-base-centos-65-x64.html
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這篇是參考這篇來修改測試進行
[研究] Snort 2.9.5.5 + Barnyard 安裝 (CentOS 6.4 x64)
http://shaurong.blogspot.tw/2013/10/snort-2955-barnyard-centos-64-x64.html
請先依照下面這篇安裝完成 Snort
[研究] snort-2.9.6.1.tar.gz (CentOS 6.5 x64) 快速安裝程式
http://shaurong.blogspot.tw/2014/06/snort-2961targz-centos-65-x64.html
開始安裝(請看黃底黑字)
全部用 root 操作省麻煩
su root
# 安裝 mysql 讓 barnyard 輸出 snort資訊到 mysql
# 安裝 git 是為了稍後安裝 Barnyard 使用
# 安裝 httpd、php 方便測試
# 安裝 php-mbstring、php-mcrypt 是稍後安裝 phpMyAdmin 方便測試
yum -y install mysql mysql-devel git libtool mysql-server httpd php php-mysql php-mbstring php-mcrypt
#下載 Barnyad
cd /usr/local/src
git clone https://github.com/firnsy/barnyard2.git barnyard2
cd barnyard2
./autogen.sh
#設定 Barnyard
#在 x86 上
./configure --with-mysql
#在 x86_64 上
./configure --with-mysql --with-mysql-libraries=/usr/lib64/mysql
#如果要寫 shell script 可以參考下面
if [ "`uname -a | grep x86_64`" != "" ]; then
echo "x86_64"
./configure --with-mysql --with-mysql-libraries=/usr/lib64/mysql
else
echo "x86"
./configure --with-mysql
exit
fi
#安裝 Barnyard
make && make install
#設定啟動檔案
cp rpm/barnyard2 /etc/init.d/
chmod +x /etc/init.d/barnyard2
cp rpm/barnyard2.config /etc/sysconfig/barnyard2
chkconfig --add barnyard2
ln -s /usr/local/etc/barnyard2.conf /etc/snort/barnyard.conf
ln -s /usr/local/bin/barnyard2 /usr/bin/
mkdir -p /var/log/snort/eth0/archive/
# 因為 /etc/init.d/barnyard2 中 snort 程式為 /usr/sbin/snort，但小弟之前安裝到 /usr/local/bin/snort，所以建個 link 讓它可以執行到
ln -s /usr/local/bin/snort /usr/sbin/snort
vi /etc/init.d/barnyard2
#找到OPTSS 這行
...
BARNYARD_OPTS="-D -c $CONF -d $SNORTDIR/${INT} -w $WALDO_FILE -L $SNORTDIR/${INT} -a $ARCHIVEDIR -f $LOG_FILE -X $PIDFILE $EXTRA_ARGS"
這行實際上會變成下面，不符需求
-D -c /etc/snort/barnyard.conf -d /var/log/snort -w /var/log/snort/barnyard.waldo -l /var/log/snort/eth0 -a /var/log/snort/eth0/archive -f snort.log -X /var/lock/subsys/barnyard2-eth0.pid
故改為
BARNYARD_OPTS="-D -c /etc/snort/barnyard.conf -d /var/log/snort -w /var/log/snort/barnyard2.waldo -l /var/log/snort -a /var/log/snort -f snort.log -X /var/lock/subsys/barnyard2-eth0.pid"
說明一下，大寫 -L 改為小寫 -l，因為根本無此參數，官方檔案寫錯了
原來設定 -d 和 -l 都輸出到 /var/log/snort/eth0， -a 輸出到 /var/log/snort/eth0/archive ，但小弟之前安裝 snort 的文章是輸出到 /var/log/snort
#相關參數說明
[root@localhost ~]#
barnyard2
______ -*> Barnyard2 <*-
/ ,,_ \ Version 2.1.13 (Build 327)
|o" )~| By Ian Firns (SecurixLive): http://www.securixlive.com/
+ '''' + (C) Copyright 2008-2013 Ian Firns <firnsy@securixlive.com>
USAGE: barnyard2 [-options] <filter options>
Gernal Options:
-c <file> Use configuration file <file>
-C <file> Read the classification map from <file>
-D Run barnyard2 in background (daemon) mode
-e Display the second layer header info
-F Turn off fflush() calls after binary log writes
-g <gname> Run barnyard2 gid as <gname> group (or gid) after initialization
-G <file> Read the gen-msg map from <file>
-h <name> Define the hostname <name>. For logging purposes only
-i <if> Define the interface <if>. For logging purposes only
-I Add Interface name to alert output
-l <ld> Log to directory <ld>
-m <umask> Set umask = <umask>
-O Obfuscate the logged IP addresses
-q Quiet. Don't show banner and status report
-r <id> Include 'id' in barnyard2_intf<id>.pid file name
-R <file> Read the reference map from <file>
-S <file> Read the sid-msg map from <file>
-t <dir> Chroots process to <dir> after initialization
-T Test and report on the current barnyard2 configuration
-u <uname> Run barnyard2 uid as <uname> user (or uid) after initialization
-U Use UTC for timestamps
-v Be verbose
-V Show version number
-y Include year in timestamp in the alert and log files
-? Show this information
Continual Processing Options:
-a <dir> Archive processed files to <dir>
-f <base> Use <base> as the base filename pattern
-d <dir> Spool files from <dir>
-n Only process new events
-w <file> Enable bookmarking using <file>
Batch Processing Mode Options:
-o Enable batch processing mode
Longname options and their corresponding single char version
--disable-alert-on-each-packet-in-stream Alert once per event
--event-cache-size <integer> Set Spooler MAX event cache size
--reference <file> Same as -R
--classification <file> Same as -C
--gen-msg <file> Same as -G
--sid-msg <file> Same as -S
--process-new-records-only Same as -n
--pid-path <dir> Specify the directory for the barnyard2 PID file
--help Same as -?
--version Same as -V
--create-pidfile Create PID file, even when not in Daemon mode
--nolock-pidfile Do not try to lock barnyard2 PID file
Uh, you need to tell me to do something...
ERROR: Fatal Error, Quitting..
Barnyard2 exiting
===============================================================================
Record Totals:
Records: 0
Events: 0 (0.000%)
Packets: 0 (0.000%)
Unknown: 0 (0.000%)
Suppressed: 0 (0.000%)
===============================================================================
Packet breakdown by protocol (includes rebuilt packets):
ETH: 0 (0.000%)
ETHdisc: 0 (0.000%)
VLAN: 0 (0.000%)
IPV6: 0 (0.000%)
IP6 EXT: 0 (0.000%)
IP6opts: 0 (0.000%)
IP6disc: 0 (0.000%)
IP4: 0 (0.000%)
IP4disc: 0 (0.000%)
TCP 6: 0 (0.000%)
UDP 6: 0 (0.000%)
ICMP6: 0 (0.000%)
ICMP-IP: 0 (0.000%)
TCP: 0 (0.000%)
UDP: 0 (0.000%)
ICMP: 0 (0.000%)
TCPdisc: 0 (0.000%)
UDPdisc: 0 (0.000%)
ICMPdis: 0 (0.000%)
FRAG: 0 (0.000%)
FRAG 6: 0 (0.000%)
ARP: 0 (0.000%)
EAPOL: 0 (0.000%)
ETHLOOP: 0 (0.000%)
IPX: 0 (0.000%)
OTHER: 0 (0.000%)
DISCARD: 0 (0.000%)
InvChkSum: 0 (0.000%)
S5 G 1: 0 (0.000%)
S5 G 2: 0 (0.000%)
Total: 0
===============================================================================
# 重設 barnyard2
chkconfig barnyard2 reset
# 修正 barnyard 和 snort 設定檔案，使其匹配 (都使用 snort.log 當輸出)
# 修改 /etc/sysconfig/barnyard2
[root@localhost ~]#
vi /etc/sysconfig/barnyard2
找到 LOG_FILE，修改輸出檔案為 snort.log
...
LOG_FILE="snort.log"
...
# 修改 /etc/snort/snort.conf
[root@localhost ~]#
vi /etc/snort/snort.conf
找到 output unified2 這行
# output unified2: filename merged.log, limit 128, nostamp, mpls_event_types, vlan_event_types
底下增加一行
output unified2: filename snort.log, limit 128
# 修改 /etc/sysconfig/snort
[root@localhost ~]#
cp /usr/local/src/snort-2.9.6.1/rpm/snort.sysconfig /etc/sysconfig/snort
[root@localhost ~]#
vi /etc/sysconfig/snort
找到並修改如下 (註解掉兩項)
...
LOGDIR=/var/log/snort/
...
#ALERTMODE=fast
...
#BINARY_LOG=1
...
****************************************
# 處理 mysql
[root@localhost ~]#
service mysqld restart
# 替 MySQL 的 root 帳號設定密碼 (除了輸入密碼，其他全部按下 Enter 回答)
[root@localhost ~]#
/usr/bin/mysql_secure_installation
...
Enter current password for root (enter for none):
Set root password? [Y/n]
New password:
輸入你自己想要設定的密碼(例如 1234)
Re-enter new password:
再輸入一次密碼(例如 1234)
Password updated successfully!
Reloading privilege tables..
... Success!
# 建立 snortdb 資料庫，存取帳號 barnyard2，密碼 123456，執行 flush privileges; 立刻生效
(不要把 MySQL root 密碼 1234 和 snortdb 密碼 123456 搞混，你可以換成別的密碼，相對應的地方密碼請換掉)
[root@localhost barnyard2]#
mysql -u root -p
Enter password:
輸入你自己設定的密碼(例如 1234)
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 11
Server version: 5.1.73 Source distribution
Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql>
create database snortdb;
Query OK, 1 row affected (0.00 sec)
mysql>
grant all privileges on snortdb.* to barnyard2@localhost identified by '123456';
Query OK, 0 rows affected (0.00 sec)
mysql>
flush privileges;
Query OK, 0 rows affected (0.00 sec)
mysql>
exit
Bye
[root@localhost barnyard2]#
#設定 barnyard2 輸出到 mysql
[root@localhost ~]#
vi /etc/snort/barnyard.conf
尋找 output database
新建立一行
output database: log, mysql, user=barnyard2 password=123456 dbname=snortdb host=localhost
在 snortdb 資料庫中建立 barnyard 放 snort 結果資料的 table (密碼 123456)
[root@localhost barnyard2]#
mysql snortdb -ubarnyard2 -p < /usr/local/src/barnyard2/schemas/create_mysql
Enter password:
123456
[root@localhost barnyard2]#
****************************************
重新啟動 snort 和 barnyard2 (建議 snort 先啟動)
重新啟動 snort (因為 snort.conf 修改過)
[root@localhost barnyard2]#
service snortd restart
Stopping Snort: [ OK ]
Starting Snort: PCAP_FRAMES -> 32768 * 4096 / 2 = 67108864 (1600)
Spawning daemon child...
My daemon child 52792 lives...
Daemon parent exiting (0)
[ OK ]
[root@localhost barnyard2]#
就算顯示 OK，也建議檢查
[root@localhost barnyard2]#
service snortd status
snort (pid 52794) is running...
[root@localhost barnyard2]#
ps axu| grep snort
root 52792 0.1 17.5 659112 336120 ? Ssl 16:39 0:00 /usr/local/bin/snort -D -i eth0 -c /etc/snort/snort.conf
root 52798 0.0 0.0 103252 836 pts/1 S+ 16:40 0:00 grep snort
[root@localhost barnyard2]#
如果出現 snort dead but subsys locked，刪除鎖定檔案重新再測試
rm -fr /var/lock/subsys/snort
啟動 barnyard2 (會有點慢)
[root@localhost barnyard2]#
service barnyard2 restart
Shutting down Snort Output Processor (barnyard2): [FAILED]
Starting Snort Output Processor (barnyard2): [FAILED]
[root@localhost barnyard2]#
居然 FAILED，待研究 ...
和以前相比
barnyard2 同樣是 2.1.13 (Build 327) 版，編譯沒問題，執行為何出問題 ???
MySQL 從 5.1.69 變成 5.1.73 版 (理論上出問題機率低)
測試一下設定
[root@localhost barnyard2]# barnyard2 -T -c /etc/snort/barnyard.conf -d /var/log/snort -w /var/log/snort/barnyard2.waldo -l /var/log/snort -a /var/log/snort -f snort.log -X /var/lock/subsys/barnyard2-eth0.pid
Running in Test mode
--== Initializing Barnyard2 ==--
Initializing Input Plugins!
Initializing Output Plugins!
Parsing config file "/etc/snort/barnyard.conf"
+[ Signature Suppress list ]+
----------------------------
+[No entry in Signature Suppress List]+
----------------------------
+[ Signature Suppress list ]+
ERROR: Unable to open Generator file "/etc/snort/gen-msg.map": No such file or directory
ERROR: [Barnyard2Init()], failed while processing [/etc/snort/gen-msg.map]
Fatal Error, Quitting..
Barnyard2 exiting
缺檔案，找一下在哪
[root@localhost barnyard2]# find / -name gen-msg.map
/usr/local/src/snort-2.9.6.1/etc/gen-msg.map
拷貝過去
[root@localhost barnyard2]#
cp /usr/local/src/snort-2.9.6.1/etc/gen-msg.map /etc/snort/.
再測試一次，正常了
[root@localhost barnyard2]# barnyard2 -T -c /etc/snort/barnyard.conf -d /var/log/snort -w /var/log/snort/barnyard2.waldo -l /var/log/snort -a /var/log/snort -f snort.log -X /var/lock/subsys/barnyard2-eth0.pid
Running in Test mode
--== Initializing Barnyard2 ==--
Initializing Input Plugins!
Initializing Output Plugins!
Parsing config file "/etc/snort/barnyard.conf"
+[ Signature Suppress list ]+
----------------------------
+[No entry in Signature Suppress List]+
----------------------------
+[ Signature Suppress list ]+
Barnyard2 spooler: Event cache size set to [2048]
INFO database: Defaulting Reconnect/Transaction Error limit to 10
INFO database: Defaulting Reconnect sleep time to 5 second
[ClassificationPullDataStore()]: No Classification found in database ...
[SignaturePullDataStore()]: No signature found in database ...
[SystemPullDataStore()]: No System found in database ...
[ReferencePullDataStore()]: No Reference found in database ...
[SignatureReferencePullDataStore()]: No Reference found in database ...
database: compiled support for (mysql)
database: configured to use mysql
database: schema version = 107
database: host = localhost
database: user = barnyard2
database: database name = snortdb
database: sensor name = localhost.localdomain:NULL
database: sensor id = 1
database: sensor cid = 1
database: data encoding = hex
database: detail level = full
database: ignore_bpf = no
database: using the "log" facility
--== Initialization Complete ==--
______ -*> Barnyard2 <*-
/ ,,_ \ Version 2.1.13 (Build 327)
|o" )~| By Ian Firns (SecurixLive): http://www.securixlive.com/
+ '''' + (C) Copyright 2008-2013 Ian Firns <firnsy@securixlive.com>
Barnyard2 successfully loaded configuration file!
Barnyard2 exiting
database: Closing connection to database "snortdb"
[root@localhost barnyard2]#
[root@localhost barnyard2]# service barnyard2 restart
Shutting down Snort Output Processor (barnyard2): [ OK ]
Starting Snort Output Processor (barnyard2): [ OK ]
[root@localhost barnyard2]#
問題解決了 ~
確認一下
[root@localhost barnyard2]#
service barnyard2 status
barnyard2 (pid 28646) is running...
[root@localhost barnyard2]#
ps aux | grep snort
root 28559 0.0 17.5 659228 336524 ? Ssl 11:02 0:00 /usr/local/bin/snort -D -i eth0 -c /etc/snort/snort.conf
root 28646 8.1 4.7 142956 91388 ? Ss 11:08 0:21 barnyard2 -D -c /etc/snort/barnyard.conf -d /var/log/snort -w /var/log/snort/barnyard2.waldo -l /var/log/snort -a /var/log/snort -f snort.log -X /var/lock/subsys/barnyard2-eth0.pid
root 28671 0.0 0.0 103248 872 pts/1 S+ 11:13 0:00 grep snort
[root@localhost barnyard2]#
****************************************
測試
手動去
http://www.phpmyadmin.net/home_page/downloads.php
網站下載 phpMyAdmin-4.0.10-all-languages.zip 回來安裝，方便稍後檢查是否輸出到 mysql
( phpMyAdmin 4.1.x 和 4.2.x 只支援 MySQL 5.5.0 或更新，不支援 CentOS 6.5 用 yum 安裝的 5.1.x 版，只能下載 4.0.x 版用)
[root@localhost src]#
cd /usr/local/src
[root@localhost src]#
unzip phpMyAdmin-4.0.10-all-languages.zip -d /var/www/html
[root@localhost src]#
mv /var/www/html/phpMyAdmin-4.0.10-all-languages /var/www/html/phpMyAdmin
檢查目前輸出情況
[root@localhost src]#
ls -al /var/log/snort
total 40
drwx------. 5 snort snort 4096 Jun 20 11:08 .
drwxr-xr-x. 14 root root 4096 Jun 20 10:55 ..
-rw-r--r--. 1 root root 0 Jun 20 10:49 alert
-rw-------. 1 root root 2056 Jun 20 11:16 barnyard2.waldo
-rw-r--r--. 1 snort snort 18 Jul 18 2013 .bash_logout
-rw-r--r--. 1 snort snort 176 Jul 18 2013 .bash_profile
-rw-r--r--. 1 snort snort 124 Jul 18 2013 .bashrc
drwxr-xr-x. 3 root root 4096 Jun 20 10:56 eth0
drwxr-xr-x. 2 snort snort 4096 Nov 12 2010 .gnome2
drwxr-xr-x. 4 snort snort 4096 Jun 19 22:34 .mozilla
-rw-------. 1 root root 3572 Jun 20 11:16 snort.log.1403233325
[root@localhost src]#
(下圖) 用瀏覽器連上
http://192.168.128.101/phpMyAdmin
網址 (IP 是 mysql + phpMyAdmin 主機的 IP ，帳號密碼為可存取 mysql 資料庫的，例如 root 和 1234 (問你自己) 或 barnyard2 和 123456)
點選 snortdb 資料庫，看目前所有 tables 有幾 筆資料
到另一台主機，進行攻擊 (實測若 nikto.pl 和 snort 同一台，測試無攻擊效果)
[root@localhost nikto-2.1.5]#
./nikto.pl -h 192.168.128.102
回 snort 電腦檢查結果
[root@localhost src]#
ls -al /var/log/snort
total 44
drwx------. 5 snort snort 4096 Jun 20 11:08 .
drwxr-xr-x. 14 root root 4096 Jun 20 10:55 ..
-rw-r--r--. 1 root root 0 Jun 20 10:49 alert
-rw-------. 1 root root 2056 Jun 20 11:24 barnyard2.waldo
-rw-r--r--. 1 snort snort 18 Jul 18 2013 .bash_logout
-rw-r--r--. 1 snort snort 176 Jul 18 2013 .bash_profile
-rw-r--r--. 1 snort snort 124 Jul 18 2013 .bashrc
drwxr-xr-x. 3 root root 4096 Jun 20 10:56 eth0
drwxr-xr-x. 2 snort snort 4096 Nov 12 2010 .gnome2
drwxr-xr-x. 4 snort snort 4096 Jun 19 22:34 .mozilla
-rw-------. 1 root root
7144 Jun 20 11:24 snort.log.1403233325
[root@localhost src]#
應該會有一個 barnyard2.waldo 檔案存在，snort.log.xxxx 可能不只一個，在每次 snort 重新啟動都會新建立一個，只有新建立的這個 size 會變大
(下圖) 所有 tables 的資料筆數應該增加 ( 請等幾秒按 F5 更新畫面，寫入要花點時間)
alert 檔案在只安裝 snort，沒有安裝 barnyard 時候，每攻擊一次會變大一次，但是目前不會變大了，待研究....
(未完待續....還有 BASE 和 ADODB)
