1. A method for blocking pestware activity, the method comprising: detecting an initial pestware activity on a protected computer; recording the initial pestware activity; receiving an instruction from a user of the protected computer to block the initial pestware activity; blocking the initial pestware activity; detecting a subsequent pestware activity; comparing the subsequent pestware activity with the initial pestware activity; and responsive to the subsequent pestware activity matching the initial pestware activity, automatically blocking the subsequent pestware activity.