Suricata

Prinzip

Bild: Alexander Hosfeld Lizenz(en): Creative Commons Namensnennung, Weitergabe unter gleichen Bedingungen 4.0 D

Installation

• sudo add-apt-repository ppa:oisf/suricata-stable
• sudo apt-get update
• sudo apt-get install suricata

Install Rules

• wget http://rules.emergingthreats.net/open/suricata/emerging.rules.tar.gz
• tar zxvf emerging.rules.tar.gz
• sudo mkdir /var/lib/suricata/
• sudo mv rules /var/lib/suricata/
• sudo cd /var/lib/suricata/rules
• sudo cat *.rules > suricata.rules

Local Rules

• cat /var/lib/suricata//rules/local.rules

alert icmp any any -> 8.8.8.8 any (msg:"Snort Test"; sid:1000000002;)
drop icmp any any -> 1.1.1.1 any (msg:"Snort Test"; sid:1000000001;)
alert tcp any any -> any any (flags: S; msg: "SYN packet"; sid:100000003;)

Suricata config

add to /etc/suricata/suricata.yaml

rule-files:

 - suricata.rules
 - local.rules

Add iptables rules

• iptables -I FORWARD -m mark ! --mark $MARK/$MASK -j NFQUEUE

Links

• https://www.pro-linux.de/artikel/2/1751/suricata-einbruchserkennung-mit-dem-erdm%C3%A4nnchen.html
• https://www.howtoforge.com/tutorial/suricata-with-elk-and-web-front-ends-on-ubuntu-bionic-beaver-1804-lts/
• https://suricata.readthedocs.io/en/suricata-4.1.0/index.html