PipeMagic, Procdump, And Privilege Escalation: Tracking The Windows CLFS Exploit Chain Daily Security Review podcast

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PipeMagic, Procdump, and Privilege Escalation: Tracking the Windows CLFS Exploit Chain

2d ago 19:21

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A zero-day vulnerability in the Windows Common Log File System (CLFS), tracked as CVE-2025-29824, became the center of a global cybersecurity storm when it was exploited in the wild before Microsoft patched it on April 8, 2025. In this episode, we take a deep dive into how this elevation of privilege exploit allowed attackers to gain SYSTEM-level access and deploy ransomware payloads—including the RansomEXX family—across industries and continents.

We’ll break down the exploitation timeline, reveal how the PipeMagic backdoor was used as a launchpad, and analyze how attackers injected malicious payloads into Windows processes like winlogon.exe to dump credentials and maintain persistence. Our discussion also covers attribution insights, with Storm-2460 and actors associated with Play ransomware identified as users of this exploit, underscoring how the tool may have circulated in underground channels before the patch.

With insights from Microsoft, Symantec, Kaspersky, and Arctic Wolf, this episode unpacks the technical mechanism, post-exploitation behavior, and defensive recommendations, including why some versions of Windows 11 were immune and what security teams should do to harden their environments moving forward. Whether you're in IT, finance, software, or retail—this episode has vital intel on defending against emerging threats in a rapidly evolving ransomware landscape.

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