DDoS Attack Fundamentals

Denial of Service (DoS) and Distributed Denial of Service (DDoS) Attacks

• A Denial of Service (DoS) attack is a type of cyber-attack that aims to make a computer or network resource unavailable by overwhelming it with traffic from a single source.
• A Distributed Denial of Service (DDoS) attack is a type of DoS attack that involves multiple sources of traffic.

Basics of Denial of Service Attacks

• DoS attacks can be launched from a single source or multiple sources.
• DoS attacks can be categorized into three types: Volume-based, Protocol-based, and Application-based attacks.
• Volume-based attacks involve sending a large amount of traffic to a network or system.
• Protocol-based attacks exploit vulnerabilities in network protocols.
• Application-based attacks target specific applications or services.

DDoS Attack Detection and Mitigation

• DDoS attacks can be detected using various techniques such as traffic analysis, anomaly detection, and signature-based detection.
• DDoS attacks can be mitigated using techniques such as traffic filtering, rate limiting, and content delivery networks (CDNs).
• SDN (Software-Defined Networking) can be used to detect and mitigate DDoS attacks.

Cyber Kill Chain

• The Cyber Kill Chain is a model that describes the stages of a cyber-attack.
• The stages of the Cyber Kill Chain include: Reconnaissance, Weaponization, Delivery, Exploitation, Installation, Command and Control, and Actions on Objectives.

DDoS Threats Landscape

• DDoS attacks are increasing in frequency and severity.
• DDoS attacks can be launched by various actors including nation-states, criminal organizations, and hacktivists.
• DDoS attacks can be used to extort money, disrupt businesses, and compromise national security.

Countering Large-scale DDoS Attacks

• Large-scale DDoS attacks can be countered using a combination of technology, policy, and international cooperation.
• Cloud-based mitigations can be used to counter large-scale DDoS attacks.
• Organizations should have incident response plans in place to respond to DDoS attacks.

Fileless Attacks

• Fileless attacks are a type of cyber-attack that does not involve malware.
• Fileless attacks exploit vulnerabilities in software and operating systems.
• Fileless attacks can be detected using behavioral analysis and memory forensics.

Understanding and Preventing DDoS Attacks

• DDoS attacks can be prevented by implementing security measures such as firewalls, intrusion detection systems, and access control lists.
• Organizations should have a incident response plan in place to respond to DDoS attacks.
• DDoS attacks can be detected using various techniques such as traffic analysis, anomaly detection, and signature-based detection.
• DDoS attacks can be mitigated using techniques such as traffic filtering, rate limiting, and content delivery networks (CDNs).