Disclosed herein is technology for analyzing a computing image (e.g., container image, virtual disk image) while it is on a remote node in a secured environment. An example method may involve: initiating, by a first computing device, an execution of a proxy agent on a second computing device, the proxy agent having access to an image repository comprising an image; transmitting, by the proxy agent, a request for image data of the image, wherein the request comprises information indicating a particular portion of the image to be read using a file system operation; storing the image data that comprises data at the particular portion of the image; and analyzing the image data in view of one or more rules to determine a state of the image, wherein the state indicates a status of at least one of a computer program feature, an operating system feature, or a hardware feature.