How does the Hulk DDoS attack differ from other common DDoS attack types, such as SYN floods or UDP floods?

Hulk DDoS primarily focuses on the application layer (Layer 7) by sending large volumes of seemingly legitimate, but resource-intensive, HTTP requests. This differs from: SYN Floods, a network layer (Layer 4) attack that exploits the TCP handshake by sending a large number of SYN requests but not completing the handshake, overwhelming the target's connection table; and UDP Floods, also a network layer (Layer 4) attack, where the attacker sends a massive volume of UDP packets to random ports on the target, consuming bandwidth and resources as the server tries to respond to non-existent applications. Hulk's uniqueness lies in its ability to generate unique request parameters (e.g., using random user-agents, varying URLs) to evade simple signature-based detection, making it more sophisticated in targeting web applications specifically.