John works as a Network Administrator for Net Perfect Inc. The company has a Windows-based network. The company uses Check Point SmartDefense to provide security to the network of the company. On…

The Morris worm spread via sendmail, fingerd, and rsh exploits in a Unix environment and does not rely on HTTP URL-based requests, so an HTTP URL-dropping rule would not prevent it.

The Code Red worm exploited a fixed buffer overflow in Microsoft IIS via the /default.ida URL and is blocked by patching the IIS vulnerability or filtering that specific known URI, not by a general user-defined URL drop rule.

Hybrid attacks combine multiple techniques such as password cracking and social engineering and are not specifically mitigated by HTTP URL-dropping rules on a web server.

PTC worms and their mutations propagate by issuing HTTP requests to custom or dynamically constructed URLs on vulnerable web servers; by configuring SmartDefense to drop requests matching user-defined URL patterns, the administrator removes the HTTP-based attack vector these worms rely on for initial exploitation and self-propagation to new hosts.