Systems, methods, and other embodiments associated with a fraudulent activity shell. According to one embodiment, a system includes an application having a normal environment and a shell environment. The system also includes a trigger logic that determines whether an action satisfies a trigger condition. In response to determining that the action satisfies the trigger condition, the trigger logic triggers the application to enter a fraudulent activity mode from a default mode. In the fraudulent activity mode, the normal environment is configured to hold the action. The shell environment is configured to display the action as executed in the fraudulent activity mode.