1. A method, comprising: inserting a security layer in a kernel of a privileged domain of a computer configured to operate in a virtual machine environment, wherein the privileged domain of the computer manages a virtual machine monitor (VMM) and operates logically below one or more guest operating systems; storing a snapshot of authorized objects in a user space of the privileged domain; intercepting, by the security layer, a request for an execution of an object in the computer wherein the request for the execution is from a user space of the privileged domain; verifying an authorization of the object by linking a particular module into a kernel space associated with the privileged domain, wherein the particular module is configured to compute a checksum for the object, access an inventory of a plurality of stored checksums in a memory element, and compare the checksum to the plurality of stored checksums; and denying the execution of the object if it is not authorized.