- Engineer — Plan: Audit your web properties for use of Plerdy SEO Tracker and any other third-party analytics scripts; remove or isolate if found, and review Content Security Policy coverage to limit blast radius of injected third-party JavaScript.
- SOC/IR — Act: Review Sekoia’s full research for IOCs and indicators tied to this campaign; hunt proxy/DNS logs for Plerdy-related domains and unexpected JavaScript attribute-harvesting patterns on web properties serving your users or employees.
- Leader — Plan: Initiate a vendor-risk review of third-party analytics scripts across corporate web properties; a nation-state supply chain attack on a web analytics provider is precisely the vector that bypasses perimeter controls and warrants a policy on approved script sources.