Browser Cache Smuggling 2.0: How Attackers Weaponize the Web to Deliver Stealthy Malware

**Executive Summary:** SensePost researchers demonstrate a fully weaponized Browser Cache Smuggling attack that delivers proxy DLLs via browser cache and abuses the Windows DLL search order in user-writable LocalAppData installs of Teams/OneDrive to execute malicious payloads inside trusted processes, evading traditional defenses; mitigations include configuring browsers to clear cache on exit and monitoring non-browser access to cached files.