The extension is a legitimate Yandex search tool that sets Yandex as the default search engine. All outbound network requests (analytics, error reporting, cookies) are directed to the publisher's own domains ([domain withheld], [domain withheld], [domain withheld]). Data collected (anonymous usage IDs, version, install date) is typical first-party analytics and covered by the publisher's privacy policy ([domain withheld]). The cookies and tabs permissions are essential for its search integration functionality. The ML model likely overfit on the broad permission set and the presence of fetch calls to analytics endpoints.