Tag: browser cache exploitation

Russian Loader Service Exploits Browser Cache to Deliver Malware

Meet DOUBLECUP, a sneaky Russian loader service that's been hiding in plain sight since June 2026, using browser cache tricks to deliver malware to unsuspecting victims. Its clever ClickFix campaigns conceal malicious code within innocent-looking PNG images, deploying nasty payloads like CountLoader and DeviceManager RAT on Windows and macOS devices.