[German]I am posting a very unusual observation by an administrator among the blog readers here on the blog. He noticed that an ominous folder c:\virus was "suddenly" created on his clients on the system drive. The cause has not yet been proven, but there are some indications that Trend Micro is the root cause. Perhaps someone else from the readership has made such an observation.
[German]On April 11, 2025, Microsoft released the out-of-band update KB5058919 for Windows 11 22H2 (Enterprise and Education) and Windows 11 23H2 (all versions). This special update had to be released because there were problems with Active Directory group policies.
[German]An addendum from April 8, 2025: Microsoft also released various updates for the Windows RE environment for Windows 10 on this date. Further updates for Windows 10 make improvements to the Windows Setup binaries or all files used by Setup for feature updates in Windows 10.
Microsoft has released the Dynamic Update KB5055671 (Safe OS Dynamic Update) for Windows 11 24H2 and Windows Server 2025 on April 8, 2025. This update is available via Windows Update and improves the Windows Recovery Environment (Win RE) in Windows 11 version 24H2 and Windows Server 2025.
Short addendum (was offline for a while): Microsoft has released the Dynamic Update KB5056789 for Windows 11 22H2/23H2 on April 8, 2025. This update is available via Windows Update and improves the Windows Recovery Environment (Win RE) in Windows 11 version 22H2 and Windows 11 version 23H2.
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If anyone is using Windows Autopilot and getting a TPM check error on new 2025 PCs, this is a known bug that Microsoft is working on.
Quick reminder for administrators who manage devices via Microsoft Intune. Microsoft is changing the URLs for the endpoint with Windows, Mac and Android. Adjustments are required by the end of April 2025.
[German]At the end of March 2025, Microsoft announced that Microsoft Entra ID will no longer support service principal-less authentication from March 2026. Microsoft Entra ID will then block authentication for multi-tenant applications that do not have an enterprise application registration in the resource tenant.
[German]A small addendum on the subject of Android security. Some time ago, cheap Android smartphones were once again found with the Triada malware pre-installed. The Remote Access Trojan (RAT) extracts personal data. The campaign mainly affected Russian victims, as Kasperski announced. In addition, a stalker ware app was found that requires a password for uninstallation.
[German]In future, Microsoft will specify new requirements for sending bulk emails in Outlook. For domains that send more than 5,000 emails per day, Outlook will soon require compliance with SPF, DKIM and DMARC. Non-compliant messages will initially be sent to junk. If the issues remain unresolved, they may eventually be rejected.
MVP:
2013 – 2016
WIMVP:
2017 – 2020
