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Threat Intelligence Report

Fake Microsoft Teams Campaign Delivers ValleyRAT via NSIS Installer and DLL Sideloading

๐Ÿ“… May 26, 2026 ๐Ÿ“ฐ labs.k7computing.com ๐Ÿ” 0 CVE(s) referenced

A sophisticated fake Microsoft Teams campaign uses deceptive websites and a trojanized installer to deliver ValleyRAT via DLL sideloading and in-memory execution, employing advanced evasion and persistence techniques to steal sensitive user data.

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๐Ÿ“Š Visual Mindmap
๐ŸŽฏ IOC Extraction
โš”๏ธ MITRE ATT&CK TTPs
๐Ÿ“ฆ STIX 2.1 Bundle