SMB shares

Winsage
December 2, 2025
Microsoft has acknowledged a glitch with the KB5070311 preview update that causes bright white flashes when launching File Explorer in dark mode on Windows 11. The issue occurs not only when opening File Explorer but also during actions like navigating to Home or Gallery, creating new tabs, toggling the Details pane, and selecting 'More details' while copying files. As a temporary solution, Microsoft recommends disabling dark mode. The KB5070311 update also resolved a bug that caused the explorer.exe process and taskbar to become unresponsive after certain notifications and addressed search failures in File Explorer on some SMB shares. Additionally, Microsoft had previously confirmed a critical bug affecting File Explorer and the Start Menu on Windows 11 24H2 devices with cumulative updates since July 2025.
Winsage
September 2, 2025
Cybercriminals have developed a sophisticated variant of the ClickFix scam, utilizing human-verification social engineering and the Windows search protocol to deploy MetaStealer, an infostealer that steals credentials and sensitive data. The attack begins when a target searches for the legitimate AnyDesk tool and is redirected to a phishing page featuring a deceptive human-verification prompt. This page uses a search-ms URI scheme to connect to an attacker-controlled SMB share, presenting a malicious Windows shortcut disguised as a PDF. Executing this shortcut downloads the legitimate AnyDesk installer and retrieves a malicious "PDF" from an external server. The MSI package contains a dropper (ls26.exe) that operates similarly to known MetaStealer samples, scanning for browser credentials and exfiltrating data. The attack circumvents user suspicion by mimicking a legitimate application installation. Organizations are advised to implement strict application whitelisting, monitor Windows protocol handlers, educate users about suspicious prompts, and deploy detection rules to mitigate these threats.
Winsage
July 30, 2025
The Microsoft Security Compliance Toolkit is a suite of tools for administrators to assess Group Policy Objects (GPOs) against Microsoft's security baselines, helping to identify discrepancies and implement secure settings. It includes tools such as the Policy Analyzer, Local Group Policy Object (LGPO) utility, and Set Object Security application. Administrators can download the toolkit from Microsoft's website, which contains zip files for various security baseline packages. The Policy Analyzer compares GPOs with local security policies to identify inconsistencies, while the LGPO tool manages local security policies and allows for policy backup and verification. The Set Object Security tool applies security descriptors to objects like files and folders. For Windows Server, administrators should test security baselines in non-production environments before deployment. With Windows Server 2025, the OSConfig platform allows for direct application of security baselines through PowerShell, simplifying the update process and maintaining compliance.
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