Selective disabling of content portions

摘要

Features are described for detecting and disabling potentially harmful items that are embedded within or referenced by network resources such as web pages. A network node, remote from a user's computing device, can compare content portions to a repository of content portions which are known to be harmful, or to a blacklist of resources which are known to be harmful. The network node can take preventative actions based on the nature of the threat and the nature of the resource. For example, the network node can modify or remove portions of source code, replace interactive content with static images, and/or disable objects. Other features include providing users with a mechanism to override the preventative measures and receive the original unprocessed content. The network node can monitor the user overrides and fine tune its detection of harmful content.

主权项

1. A system for protecting a client computing device from harmful network resources, the system comprising:
one or more computer processors; a computer memory accessible by at least one of the one or more computer processors; and a network computing component comprising an executable software module in the computer memory, the executable software module executed by the one or more computer processors, wherein the network computing component is configured to perform operations comprising:
hosting an instance of a browsing application, the instance of the browsing application in communication with a browsing application of a client computing device;obtaining a network resource from one or more content sources, the network resource comprising a plurality of portions of source code;determining that a first portion of source code is identified as harmful;in response to determining that the first portion of source code is identified as harmful, modifying the network resource, wherein modifying the network resource comprises:
generating a visual representation of a harmful network resource referenced in the first portion of source code,disabling, in the first portion of source code, a reference to the harmful network resource, andinserting, into the first portion of source code, a reference to the generated visual representation of the harmful network resource; andproviding, to the browsing application of the client computing device, the modified network resource.