Suspicious OAuth Application Consent or Permission Grant (via auditlogs)

ATT&CK techniques

Cred Access

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
- T1528Steal Application Access Token
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects an Entra ID user or admin granting OAuth consent or delegated API permissions to an application, the mechanism behind consent-phishing attacks that give an adversary-controlled app persistent access to mail and data without a password. Malicious OAuth app registration and consent is a prominent phishing technique in the Red Canary Threat Detection Report. Detecting consent and permission-grant operations surfaces illicit application access before data is exfiltrated.

Reporting behind it

Related detections9 linkedT1528 — drag to rearrange

Malicious Context.ai OAuth Application Authorization by Client ID (via google_workspace)

Suspicious Entra ID ROPC Authentication Bypassing MFA

Suspicious Consent to Application Grant in Entra ID

Malicious Azure AD Application Consent Granted with Mail Permissions

Suspicious Device Code Authentication via Microsoft Authentication Broker

Suspicious Microsoft 365 OAuth Authorization to Visual Studio Code Client

Suspicious Microsoft Entra Device Code Authentication Flow

Suspicious Google Workspace OAuth Authorization for Chrome Web Store Scope via Token Audit

Suspicious OAuth Application Consent Grant via Azure Audit Logs

Suspicious OAuth Application Consent or Permission Grant (via auditlogs)

Pivot detection · T1528 · 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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