3. A method as set forth in claim 1 wherein the step of inputting includes the initial steps of: obtaining at least one instance of the undesirable software entity; and evaluating the at least one instance to identify at least one portion that is likely to remain substantially invariant from a first instance of the undesirable software entity to a second instance of the undesirable software entity.
4. A method as set forth in claim 3 and, in the event that the undesirable software entity is self-replicating, the method includes a further step of attempting to generate other copies of the undesirable software entity.