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Windows 11 24H2 desktop with a blank taskbar and unresponsive Start menu illustrating KB5062553 breaking core shell features.

KB5062553: Windows 11 24H2 Update Breaking Multiple Features

Microsoft’s July 2025 cumulative update KB5062553 for Windows 11 24H2 is breaking core shell features like the Start menu, taskbar, and Settings on some systems, especially in VDI and first-logon scenarios. This breakdown goes through what’s actually failing, why a XAML race condition sits at the center of it, and how admins can keep 24H2 from turning user desktops into black screens.

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Custom illustration showing a hacker silhouette controlling cloud-service icons (OneDrive, Yandex Cloud) overlaying an IT supply chain network diagram.

APT31 Targets Russian IT via Yandex Cloud & OneDrive C2

Between 2024 and 2025, China-linked APT31 conducted a stealthy espionage campaign targeting Russian IT contractors and government integrators. The group masked its command-and-control using legitimate cloud services such as Yandex Cloud and OneDrive, deployed loaders like CloudyLoader via DLL side-loading, and maintained long dwell times within compromised networks. This article decodes APT31’s tool-kit, tactics and persistence model, and offers detection and response guidance for defenders.

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