A system for detecting an attack by a virtual or physical machine on one or more auto-generated websites is provided. The system includes a processor, a memory, and an application. The application is stored in the memory and includes instructions, which are executable by the processor. The instructions are configured to: access an index of a search engine server computer and determine uniform resource locators (URLs) of auto-generated websites, where the auto-generated websites include the one or more auto-generated websites; and access Internet protocol (IP) address-URL entries stored in a domain name system server computer. The instructions are also configured to: determine a first feature based on the URLs of the auto-generated websites and the IP address-URL entries; collect header data of packets transmitted to or received from the virtual or physical machine; determine a second feature based on the first feature and the header data; based on the second feature, generate a value indicative of whether the first virtual or physical machine has attacked the one or more auto-generated websites; and perform a countermeasure based on the value.