A method of generating a file hash using mount namespace data includes identifying, by a user space monitoring application executing in a user space of an operating system, a target application file associated with a target application process executing in the user space of the operating system, wherein the target application process is associated with a first mount namespace, accessing, by the user space monitoring application, a mapping between the first mount namespace and one or more processes executing in the user space of the operating system, switching, by a processing device, the user space monitoring application to the first mount namespace based on the mapping, and accessing, by the user space monitoring application, the target application file in the first mount namespace.