DOUBLECUP Uses ClickFix and Cached PNGs to Deliver CountLoader and DeviceManager RAT

Summary

A new Russian loader-as-a-service (LaaS) codenamed DOUBLECUP has been using ClickFix lures as a way to stage malware-laced PNG images in victims' browser cache and ultimately deliver CountLoader and a previously undocumented remote access trojan called DeviceManager. "The first stage drops a steganographic PNG image into the browser's cache, retrieves its hidden content, and executes the second