Golden dMSA: What Is dMSA Authentication Bypass?

BadSuccessor lets attackers abuse dMSAs on Windows Server 2025 to impersonate any account, including Domain Admins. A schema-level fix blocks the dMSA migration abuse until Microsoft patches it.

This post focuses on obtaining domain administrative privileges from a local administrator or domain user account. Once the initial steps have been taken to obtain local administrative access on a Windows operating system, the natural next steps are to gain domain user and domain administrative privileges.

Semperis argues AI-driven attacks are outpacing identity teams as machine identities outnumber human ones 10:1, and urges building organization-wide cyber resilience around hybrid identity protection before the next crisis.

Syncing Domain Admins into Entra ID lets attackers pivot from compromised on-prem AD to the cloud, and back via password writeback. CIS and Microsoft advise keeping privileged admin accounts cloud-only.

SpecterOps argues identity risk now extends beyond Tier Zero, as attackers increasingly use legitimate credentials and trusted relationships to reach backups, regulated data, and other critical workloads.

BadSuccessor lets attackers abuse a dMSA to impersonate any AD user, including Domain Admins, with no patch available. Semperis DSP adds an exposure indicator plus three IOCs to detect it.