Suspicious Entra ID Device Registration and Windows Hello Credential Persistence

ATT&CK techniques

Persistence → Priv Esc

Recon
Resource Dev
Initial Access
Execution
Persistence
- T1098.005Device Registration
Priv Esc
- T1098.005Device Registration
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects Entra ID audit events for registering a device or adding a Windows Hello for Business credential which attackers chain after token compromise to obtain a Primary Refresh Token and provision phishing-resistant persistent access to the tenant. When these events follow anomalous sign-ins they indicate an attacker establishing durable account persistence.

Reporting behind it

Related detections9 linkedT1098.005 — drag to rearrange

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Suspicious Token Request Using Microsoft Authentication Broker Client to Obtain Primary Refresh Token (via azure)

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Suspicious AWS Virtual MFA Device Creation

Suspicious Device Registration Following OAuth Token Theft

Suspicious Workday Payment Election Change via Compromised Account (via workday)

Possible Rogue Device Registration in Entra ID After Device Code Phishing

Suspicious Exchange Online Mail Flow Rule or Connector Creation via Compromised Account

Suspicious Entra ID Device Registration and Windows Hello Credential Persistence

Pivot detection · T1098.005 · 9 related

Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.

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