1. A method for identifying domain name abuse in web-based content to secure a computer, comprising: processing, using at least one computer processor, web-based content to identify a first domain name; modifying the first domain name using at least one rule for replacing characters to produce a second domain name, wherein the modified first domain name indicates that the first domain name is an imitation of the second domain name and the second domain name is associated with a brand being imitated by the first domain name; identifying the brand being imitated by the first domain name that is associated with the second domain name; and classifying web-based content as fraud based at least in part on the identified brand.