A system and method for performing a task on a computing device based on access rights are described. In one aspect, an exemplary method comprises, gathering data characterizing a task by intercepting function calls used to perform the task, and sending a request to an operating system of the computing device to temporarily interrupt the called functions until access rights are determined, determining a threat level of the task based on the gathered data and task templates, generating a test based on the threat level and test generating rules and presenting the test to the user, analyzing results of the test and determining access rights of the task based on the results, and performing the task based on the access rights.