Inside the Exploit Chain: How Cybercriminals Weaponize Windows CLFS to Deploy PipeMagic Ransomware

Executive Summary A critical security flaw in Microsoft Windows, tracked as CVE-2025-29824, has recently been weaponized in targeted ransomware campaigns, leveraging a sophisticated privilege escalation vulnerability in the Windows Common Log File System (CLFS). This zero-day vulnerability has allowed threat actors—most notably the Storm-2460 group—to deploy the notorious PipeMagic backdoor as the initial foothold in their RansomExx ransomware operations. Despite […]

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