JSPSpy and ‘filebroser’: A Custom File Management Tool in Webshell Infrastructure

Hunt researchers identified a small cluster of JSPSpy web shells and an apparent rebranded File Browser panel ('filebroser') hosted across four servers in China and the United States; the report lists IPs, domains, ports (including non-standard ports), a DigiCert TLS certificate, and recommends layered detection using HTTP headers, response behaviors, and page titles to hunt and monitor these deployments.