12. The system of claim 9 , wherein the one or more instructions, upon execution by the one or more hardware processors, further causes the one or more hardware processors to: determine a predetermined number of most similar known hash signatures based on the similarity measurement computed between the hash signature of the DOM object of the website and the known hash signature of the DOM object associated with each of the plurality of known websites; and compute a similarity weight for the predetermined number of the most similar known hash signatures; and wherein determining whether the threshold associated with the classification is satisfied based on the similarity measurement computed between the hash signature of the DOM object of the website and the known hash signature of the DOM object associated with each of the plurality of known websites includes determining whether the similarity weight satisfies the threshold associated with the classification.
13. The system of claim 12 , wherein computing a similarity weight for the predetermined number of the most similar known hash signatures includes: weighting a similarity of the predetermined number of the most similar known hash signatures according to a distribution of similarity measurements of the predetermined number of the most similar known hash signatures; and calculating the similarity weight for the most similar known hash signatures by dividing a sum of similarity weights of a number of the most similar known hash signatures that are classified as confirmed by a sum of similarity weights of a total number of the most similar known hash signatures.