All news with #cache smuggling tag
Wed, October 8, 2025
New FileFix Variant Uses Cache Smuggling to Evade Security
⚠️ A new FileFix variant uses cache smuggling to deliver a malicious ZIP via Chrome's disk cache while impersonating a Fortinet VPN Compliance Checker, tricking victims into pasting a crafted path into File Explorer. The embedded PowerShell command extracts a hidden ZIP from cached image files, writes a ComplianceChecker.zip and launches an executable, enabling execution without obvious downloads. Security firms report rapid abuse by ransomware and info-stealer operators and advise training users never to paste clipboard content into OS dialogs.