SNORT: Install SNORT untuk BARNYARD2

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Asumsi:

  • IP address 192.168.0.100
  • nama server : refserver

Cek Interface

sudo su
vi /etc/network/interfaces

auto eth0
iface eth0 inet static
        address 192.168.0.100
        netmask 255.255.255.0
        network 192.168.0.0
        broadcast 192.168.0.255
        gateway 192.168.0.223
        # dns-* options are implemented by the resolvconf package, if installed
        dns-nameservers 8.8.8.8


Install apache & MySQL

Instalasi 

apt-get update -y
apt-get -y install apache2 libapache2-mod-php5 mysql-server mysql-common mysql-client php5-mysql libmysqlclient-dev \
php5-gd php-pear libphp-adodb php5-cli

Jika masih belajar dapat menggunakan

  • MySQL Root password 123456

Instalasi dependency 

apt-get -y install libwww-perl libnet1 libnet1-dev libpcre3 libpcre3-dev autoconf libcrypt-ssleay-perl \
libtool libssl-dev build-essential automake gcc make flex bison git

Install Deps

Download dan Install libdnet: 

mkdir /usr/local/snort
cd /usr/local/snort
wget http://libdnet.googlecode.com/files/libdnet-1.12.tgz
tar xzvf libdnet-1.12.tgz
cd libdnet-1.12/
./configure
make
make install
ln -s /usr/local/lib/libdnet.1.0.1 /usr/lib/libdnet.1

Install libcap, kita harus instalasi libcap sebelum DAQ. 

cd /usr/local/snort
wget http://www.tcpdump.org/release/libpcap-1.6.2.tar.gz
tar -xzvf libpcap-1.6.2.tar.gz
cd libpcap-1.6.2
./configure
make
make install
echo “/usr/local/lib” >> /etc/ld.so.conf
ldconfig -v

Downloading & Installing DAQ: 

cd /usr/local/snort
wget https://www.snort.org/downloads/snort/daq-2.0.5.tar.gz
tar zxvf daq-2.0.5.tar.gz
cd daq-2.0.5
./configure
make
make install

Download & Install Snort: 

cd /usr/local/snort
wget https://www.snort.org/downloads/snort/snort-2.9.7.3.tar.gz
tar -xzvf snort-2.9.7.3.tar.gz
cd snort-2.9.7.3
./configure -prefix=/usr/local/snort -enable-sourcefire
make
make install
mkdir /var/log/snort
mkdir /var/snort
groupadd snort
useradd -g snort snort
chown snort:snort /var/log/snort

Download Latest Snort Rules

Kita dapat men-download Snort Rules yang terakhir. Kita perlu membuat login di snort.org Kemudian Sign-In untuk download rules. Setelah rules berhasil di download, lakukan: 

cd /usr/local/src
tar zxf snortrules-snapshot-2973.tar.gz -C /usr/local/snort
mkdir -p /usr/local/snort/lib/snort_dynamicrules
cp /usr/local/snort/so_rules/precompiled/Ubuntu-12-04/x86-64/2.9.7.3/* /usr/local/snort/lib/snort_dynamicrules/
touch /usr/local/snort/rules/white_list.rules
touch /usr/local/snort/rules/black_list.rules
ldconfig -v

Edit file konfigurasi snort.conf 

vi /usr/local/snort/etc/snort.conf

Set nilai di bawah ini 

var WHITE_LIST_PATH /usr/local/snort/rules
var BLACK_LIST_PATH /usr/local/snort/rules

dynamicpreprocessor directory /usr/local/snort/lib/snort_dynamicpreprocessor/
dynamicengine /usr/local/snort/lib/snort_dynamicengine/libsf_engine.so
dynamicdetection directory /usr/local/snort/lib/snort_dynamicrules

output unified2: filename snort.u2, limit 128


Download & Install Barnyard2

Barnyard2 akan memperbaiki efisiensi Snort dengan cara mengurangi beban dari engine deteksi utama. Barnyard2 akan membaca file keluaran logging snort dan memasukannya ke database. Jika database tidak tersedia, Barnyard2 akan memasukan data saat database kembali online sehingga tidak ada alert yang akan hilang.

Instalasi barnyard2, 

cd /usr/local/src
git clone  http://github.com/firnsy/barnyard2.git barnyard2
cd barnyard2
autoreconf -fvi -I ./m4
./configure -with-mysql -with-mysql-libraries=/usr/lib/x86_64-linux-gnu
make
make install
cp etc/barnyard2.conf /usr/local/snort/etc
mkdir /var/log/barnyard2
chmod 666 /var/log/barnyard2
touch /var/log/snort/barnyard2.waldo
chown snort.snort /var/log/snort/barnyard2.waldo

Buat database untuk snort yang akan digunakan Barnyard untuk penyimpanan, 

mysql -u root -p123456

create database snortdb;
grant create, insert, select, delete, update on snortdb.* to 'snortuser'@'localhost' identified by '3ngin33r';
flush privileges;
quit;

Buat Snort DB

mysql -u root -p123456 -D snortdb < /usr/local/src/barnyard2/schemas/create_mysql

Modifikasi file konfigurasi Barnyard2 dengan perintah berikut: 

vi /usr/local/snort/etc/barnyard2.conf

Set Values as given below: 

config  reference_file: /usr/local/snort/etc/reference.config
config  classification_file: /usr/local/snort/etc/classification.config
config  gen_file: /usr/local/snort/etc/gen-msg.map
config  sid_file: /usr/local/snort/etc/sid-msg.map
config hostname: localhost
config interface: eth0

output database: log, mysql, dbname=snortdb user=snortuser password=3ngin33r host=localhost

SAVE & Quit

12 - Barnyard2 ConfigChange Copy Required Files from Snort Source Directory:::

  1. cp /usr/local/snort/snort-2.9.6.2/etc/gen-msg.map /usr/local/snort/etc/
Testing Snort:

It’s time to test if Snort has been installed and configured correctly by using this command:

  1. /usr/local/snort/bin/snort -u snort -g snort -c /usr/local/snort/etc/snort.conf -i eth0

“Commencing packet processing” must be shown at the end of the execution of the command, this means Snort is Installed & configured correctly. 13 - Test Snort To set Snort to start automatically on your machine edit the rc.local file with the following command:

  1. vim /etc/rc.local

Add following lines before “exit” command.

ifconfig eth0 up

/usr/local/snort/bin/snort -D -u snort -g snort -c /usr/local/snort/etc/snort.conf -i eth0 /usr/local/bin/barnyard2 -c /usr/local/snort/etc/barnyard2.conf -d /var/log/snort -f snort.log -w /var/log/snort/barnyard2.waldo -D


SAVE & Quit by :wq!


14 - AutoStart at boot Download and Set up Snort Report (Optional):

Download Snort Report from: http://www.symmetrixtech.com/

or

  1. wget http://symmetrixtech.com/wp/wp-content/uploads/2014/09/snortreport-1.3.4.tar.gz
  2. tar -xzf snortreport-1.3.4.tar.gz -C /var/www/html
  3. vim /var/www/html/snortreport-1.3.4/srconf.php

Set Database details: $server = “localhost”; $user = “snortuser”; $pass = “3ngin33r”; $dbname = “snortdb”;

15 - SnortGraph ConfigEdit Download and Install JPGraph:

  1. wget http://jpgraph.net/download/download.php?p=5 -O jpgraph-3.5.0b1.tar.gz
  2. tar xvzf jpgraph-3.5.0b1.tar.gz -C /var/www/html/
  3. mv /var/www/html/jpgraph-3.5.0b1 /var/www/html/jpgraph

Download and Install ADODB5:

  1. wget http://downloads.sourceforge.net/project/adodb/adodb-php5-only/adodb-519-for-php5/adodb519.tar.gz
  2. tar -xzf adodb519.tar.gz -C /var/www/html
  1. mv adodb519 adodb5

Installing and configuring Acid: (Install Either Acid or BASE – BASE shown below)

  1. cd /usr/local/src
  2. wget http://acidlab.sourceforge.net/acid-0.9.6b23.tar.gz
  3. tar -xzf acid-0.9.6b23.tar.gz -C /var/www/html
  4. cd /var/www/html/acid/
  5. vim acid_conf.php

– Set Options as:

$DBlib_path = “/var/www/html/adodb5″;

$alert_dbname = “snortdb”; $alert_host = “localhost”; $alert_port = “”; $alert_user = “snortuser”; $alert_password = “3ngin33r”;

/* Archive DB connection parameters */ $archive_dbname = “snortdb”; $archive_host = “localhost”; $archive_port = “”; $archive_user = “snortuser”; $archive_password = “3ngin33r”;

$ChartLib_path = “/var/www/html/jpgraph-3.5.0b1″;


— SAVE and Quit


16 - Acid ConfigEdit – Restart Apache and Browse following URL in Browser:

http://<ServerIP>/acid


Installing BASE for Snort Front-end : RECOMMENDED for Snort

— I used BASE as ACID didn’t work for me.

– Check if all dependencies are installed or else install them by following command:

  1. apt-get install apache2 libapache2-mod-php5 php5 php5-mysql php5-common php5-gd php5-cli php-pear unzip -y

– Install pear Image_Graph

  1. pear install -f Image_Graph

Download and extract BASE

  1. cd /var/www/html/
  2. wget http://sourceforge.net/projects/secureideas/files/BASE/base-1.4.5/base-1.4.5.tar.gz
  3. tar zxvf base-1.4.5.tar.gz
  4. mv base-1.4.5 base

Configure BASE

  1. cd base
  2. cp base_conf.php.dist base_conf.php
  3. vim base_conf.php

– Set Directives as:

$BASE_urlpath = ‘/base';

$DBlib_path = ‘/var/www/html/adodb5′;

$alert_dbname = ‘snortdb'; $alert_host = ‘localhost'; $alert_port = ”; $alert_user = ‘snortuser'; $alert_password = ‘3ngin33r';


17 - Base ConfigEdit Change the Ownership of all files to www-data:

  1. chown -R www-data:www-data /var/www/html
  1. service apache2 restart

– Browse to: http://<snort_ip_address>/base/ and click on “setup page” link – Click on “Create BASE AG” button on the upper right of the page


18 - Base ConfigPage – Click on the “Main page” link


19 - Config complete


— Now, we should see BASE Dashboard like shown below:


20 - BASE Dashboard


More HoTos:

– Installing Snort Sensor on Windows Host with Remote Snort +MySQL using WinIDS

– Installing Snorby on Ubuntu for Snort with Barnyard2

Referensi

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