Intrusion Detection Systems

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This document discusses intrusion detection systems, including common attack patterns like port, ping, and login sweeps. It outlines Snort as an example network-based intrusion detection system and provides Snort rule examples. Different types of intrusion detection systems are also covered, along with considerations for host-based versus network-based placement.

Intrusion
Detection
Systems
“From bits to information”

Outline
• Attack Patterns.
• SNORT.
• IDS Types

Attack Patterns
“From bits to information”

Become a Professional Ethical Cyber Hacker and learn to protect your organisation from being attacked. Become a truly invaluable asset to your organisation its cyber security defence against cyber hackers. Almost 3 million worldwide shortages of Cybersecurity professionals. 1.76 billion records leaked in January 2019 alone The 10 biggest data breaches of all time — with the number of accounts hacked and year occurred — according to Quartz: Yahoo, 3 billion (2013); Marriott, 500 million (2014-2018); Adult FriendFinder, 412 million (2016); MySpace, 360 million (2016); Under Armor, 150 million (2018); Equifax, 145.5 million (2017); eBay, 145 million (2014); Target, 110 million (2013); Heartland Payment Systems, 100+ million (2018); LinkedIn, 100 million (2012) The 5 most cyber-attacked industries over the past 5 years are healthcare, manufacturing, financial services, government, and transportation. Cybersecurity Ventures predicts that retail, oil and gas / energy and utilities, media and entertainment, legal, and education (K-12 and higher ed), will round out the top 10 industries for 2019 to 2022. Distributed-Denial-of-Service (DDoS) attacks represent the dominant threat observed by the vast majority of service providers — and they can represent up to 25 percent of a country’s total Internet traffic while they are occurring. Globally the total number of DDoS attacks will double to 14.5 million by 2022 (from 2017), according to the Cisco Visual Networking Index (VNI). Global ransomware damage costs are predicted to hit $20 billion in 2021, up from $11.5 billion in 2019, $5 billion in 2017, and just $325 million in 2015, according to Cybersecurity Ventures.

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