Detection, identification, and control of application behavior dealing with malware, security risks, data privacy, or resource usage can be difficult in an era of complex, composite software applications composed of multiple components. Software applications are analyzed to determine their components and to identify the behaviors associated with each of the components. Components can also be analyzed with respect to similarity of previously known components. Behaviors can include use of personal identifying information or device information, or any actions that can be taken by applications on the device, including user interface displays, notifications, network communications, and file reading or writing actions. Policies to control or restrict the behavior of applications and their components may be defined and applied. In one embodiment this can include the identification of advertising networks and defining policies to permit various opt-out actions for these advertising networks.