HT3Labs is a threat actor group identified in connection with a Microsoft Brokered File System (MBFS) privilege-escalation vulnerability.
Overview
HT3Labs is a threat actor group identified in connection with a Microsoft Brokered File System (MBFS) privilege-escalation vulnerability. The group is noted for exploiting weaknesses in a Windows subsystem to achieve elevated privileges, enabling persistence and potential lateral movement within compromised networks. This positions HT3Labs as a notable actor in cybersecurity due to targeting core Windows components to gain SYSTEM-level access.
Related Threat Clusters
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Microsoft File System Vulnerability Allows Local Privilege Escalation
A vulnerability in Microsoft's brokering file system has been identified, allowing local privilege escalation. This issue affects users of Microsoft systems, potentially enabling unauthorized access to sensitive data.…
4 articles · Updated December 22, 2025
Recent Intelligence Reports
- Microsoft Brokering File System Vulnerability Let Attackers Escalate Privileges — Cybersecuritynews · December 22, 2025