Suricata: Test DDoS Attack

Sumber: https://kifarunix.com/install-and-setup-suricata-on-ubuntu-18-04/

Kita akan uji nyali melakukan DDoS Attack ke server yang menjalankan SURICATA.

Menyiapkan Rules

Edit file

vi /etc/suricata/rules/test-ddos.rules

alert tcp any any -> $HOME_NET 80 (msg: "Possible DDoS attack"; flags: S; flow: stateless; threshold: type both, track by_dst, count 200, seconds 1; sid:1000001; rev:1;)

Rule ini akan mencatat jika ada 100 usaha connection dalam 10 detik.

Kita masukan rules test-ddos.rules di bagian rule-files:

vi /etc/suricata/suricata.yaml

af-packet:
  - interface: enp0s3
..
rule-files:
  - suricata.rules
# - Custom Test rules
  - test-ddos.rules

Supaya aman copykan ke /var/lib/suricata/rules

mkdir -p /var/lib/suricata/rules
cp /etc/suricata/rules/test-ddos.rules /var/lib/suricata/rules

Persiapan Attack

Pastikan kita disable packet offload features di network interface,

ethtool -K enp0s3 gro off lro off

Jika tidak bisa, tidak apa2. Pastikan denga perintah,

ethtool -k enp0s3 | grep large

large-receive-offload: off [fixed]

Run Suricata

Run,

killall suricata
rm /var/run/suricata.pid
suricata -D -c /etc/suricata/suricata.yaml -i enp0s3

Bisa dilihat dengan,

suricata --list-runmodes

Kali Linux Attack

Attack menggunakan Kali Linux

hping3 -S -p 80 --flood --rand-source 192.168.1.148

Bisa dilihat di

tail /var/log/suricata/fast.log
watch -n 5 tail /var/log/suricata/fast.log

03/30/2020-03:34:55.010006  [**] [1:1000001:1] Possible DDoS attack [**] [Classification: (null)]  [Priority: 3] {TCP} 81.62.51.224:60904 -> 192.168.1.148:80
03/30/2020-03:34:56.007899  [**] [1:1000001:1] Possible DDoS attack [**] [Classification: (null)] [Priority: 3] {TCP} 237.104.128.81:19964 -> 192.168.1.148:80
03/30/2020-03:34:57.007973  [**] [1:1000001:1] Possible DDoS attack [**] [Classification: (null)] [Priority: 3] {TCP} 145.248.102.92:44709 -> 192.168.1.148:80
03/30/2020-03:34:58.007980  [**] [1:1000001:1] Possible DDoS attack [**] [Classification: (null)] [Priority: 3] {TCP} 204.51.197.102:3773 -> 192.168.1.148:80
03/30/2020-03:34:59.007818  [**] [1:1000001:1] Possible DDoS attack [**] [Classification: (null)] [Priority: 3] {TCP} 94.209.60.14:28833 -> 192.168.1.148:80
03/30/2020-03:35:00.010719  [**] [1:1000001:1] Possible DDoS attack [**] [Classification: (null)] [Priority: 3] {TCP} 101.90.0.42:53510 -> 192.168.1.148:80
03/30/2020-03:35:01.007911  [**] [1:1000001:1] Possible DDoS attack [**] [Classification: (null)] [Priority: 3] {TCP} 209.155.69.24:12740 -> 192.168.1.148:80
03/30/2020-03:35:02.009702  [**] [1:1000001:1] Possible DDoS attack [**] [Classification: (null)] [Priority: 3] {TCP} 146.152.251.23:37741 -> 192.168.1.148:80
03/30/2020-03:35:03.009742  [**] [1:1000001:1] Possible DDoS attack [**] [Classification: (null)] [Priority: 3] {TCP} 39.113.86.44:62281 -> 192.168.1.148:80
03/30/2020-03:35:04.053830  [**] [1:1000001:1] Possible DDoS attack [**] [Classification: (null)] [Priority: 3] {TCP} 234.214.11.78:22803 -> 192.168.1.148:80

Referensi

• https://kifarunix.com/install-and-setup-suricata-on-ubuntu-18-04/

Pranala Menarik

• Suricata
• Suricata (software)
• Suricata: Instalasi di Ubuntu
• Suricata: Instalasi di Ubuntu 18.04
• Suricata: Konfigurasi Minimal Ubuntu 18.04
• Suricata: Test DDoS Attack
• Suricata: Konfigurasi Dasar
• Suricata: Manajemen Rule dengan Oinkmaster
• Suricata: Instalasi Snorby & barnyard2