F5. has been granted a patent for a method to detect compromised web pages in real-time. The technique involves comparing event listeners from two versions of a web page loaded in a browser, enabling the identification of changes that indicate compromise, followed by a threat response action. GlobalData’s report on F5 gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on F5, was a key innovation area identified from patents. F5's grant share as of June 2024 was 67%. Grant share is based on the ratio of number of grants to total number of patents.
Detecting compromised web pages in runtime environments
The patent US12047411B2 outlines a non-transitory computer-readable medium and associated methods for managing web servers, specifically focusing on detecting compromised web pages. The system utilizes a browser extension that identifies event listeners added to web pages during loading. At two distinct times, the system retrieves and loads different versions of a web page, generating data sets that describe the event listeners for each version. By comparing these data sets, the system can determine if a web page has been compromised due to changes made at runtime. If a compromise is detected, the system initiates a threat response action.
Additionally, the patent describes the capability to extend this functionality to multiple web pages across various web server systems. It includes provisions for generating an XHR (XMLHttpRequest) whitelist based on the initial data, which restricts requests to only those server addresses associated with the first set of event listeners. This mechanism enhances security by preventing unauthorized requests to potentially harmful servers. The claims also detail the architecture of the system, which may involve client devices, server devices, and traffic management apparatuses, all working in concert to monitor and respond to web page integrity in real-time.
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