Alerts Xdr
In brief
The page’s DevRel metadata links were updated, and the “AADInternals private key extraction attempt” alert entry was removed.
What Defender admins need to know
Administrators who use this page as an alert reference should review the updated content.
Summaries are generated from the documentation change itself.
Documentation change
The comparison below shows only the changed extract. Use the full-page view for complete context.
| Security alert name | Severity | MITRE Technique | Detector ID |
|---|---|---|---|
| A compromised user account signed in Description:Credential stuffing led to a successful sign in, confirming an account has been compromised and accessed by an unauthorized party. |
High | T1078 | xdr_CredentialStuffingToolObserved |
| Anomalous OAuth device code authentication activity Description:An OAuth device code authentication was detected in a context that deviates from the user’s typical behavior and sign-in patterns. Device code flow is generally associated with command-line tools, IoT devices, or non-browser-based applications. This anomalous activity may indicate a potential device code phishing attack and requires immediate investigation due to the risk of unauthorized token issuance or post-authentication token abuse. |
Medium | T1528, T1078.004 | xdr_AnomalousDeviceCodeAuthV2 |
| Anomalous OAuth device code authentication activity Description:An OAuth device code authentication was detected in a context that deviates from the user’s typical behavior and sign-in patterns. Device code flow is generally associated with command-line tools, IoT devices, or non-browser-based applications. This anomalous activity may indicate a potential device code phishing attack and requires immediate investigation due to the risk of unauthorized token issuance or post-authentication token abuse. |
Medium | T1528, T1078.004 | xdr_AnomalousDeviceCodeAuthV3 |
| Anomalous token exchange following device code authentication Description:An OAuth Device Code authentication was detected in an unusual context based on user behavior and sign-in patterns. Due to the design of Device Code flows, this activity requires immediate investigation as it may indicate unauthorized token issuance or post-authentication abuse. |
High | T1528, T1078.004 | xdr_AnomalousDeviceCodeAuth |
@@ -32,13 +32,13 @@ monikers: [] item_type: Content source_path: defender-for-identity/alerts-xdr.md cmProducts:+- https://authoring-docs-microsoft.poolparty.biz/devrel/fcc3cd4a-59ea-47a2-9cc1-784142a5a25d - https://authoring-docs-microsoft.poolparty.biz/devrel/b1cfdec6-b0c3-4209-818c-736879856e0e - https://microsoft-devrel.poolparty.biz/DevRelOfferingOntology/37da4cc9-0cfc-42a9-ba5e-805706b01ef8-- https://microsoft-devrel.poolparty.biz/DevRelOfferingOntology/57eae307-c3a1-4cac-b645-1a899934bac8 spProducts:+- https://authoring-docs-microsoft.poolparty.biz/devrel/d7a55faf-a992-4e27-aa3a-eadc9830e778 - https://authoring-docs-microsoft.poolparty.biz/devrel/2d0723c1-cf38-4c30-ab3d-5df787b33270 - https://microsoft-devrel.poolparty.biz/DevRelOfferingOntology/3661fb96-d414-4a4e-b7ad-9370637790dd-- https://microsoft-devrel.poolparty.biz/DevRelOfferingOntology/ee561821-1ac7-45a8-9409-6ba5eb7a5b97 platformId: 2d7db945-a5bf-40fc-86df-6433f315687c --- @@ -91,7 +91,6 @@ The following alerts indicate that a malicious actor might be attempting to stea | Security alert name | Severity | MITRE Technique | Detector ID |
| --- | --- | --- | --- |
| A compromised user account signed in<br>**Description**:Credential stuffing led to a successful sign in, confirming an account has been compromised and accessed by an unauthorized party. | High | [T1078](https://attack.mitre.org/techniques/T1078) | xdr\_CredentialStuffingToolObserved |
-| AADInternals private key extraction attempt<br>**Description**:AADInternals was used to decrypt a certificate's private key as an administrator. A successfully decrypted private key might be used to impersonate hybrid components such as Pass-through Authentication (PTA) and Microsoft Entra Cloud Sync, which might lead to lateral movement to the cloud. | High | [T1552.004](https://attack.mitre.org/techniques/T1552/004) | xdr\_AADInternalsPrivateKeyExtractAttempt |
| Anomalous OAuth device code authentication activity<br>**Description**:An OAuth device code authentication was detected in a context that deviates from the user’s typical behavior and sign-in patterns. Device code flow is generally associated with command-line tools, IoT devices, or non-browser-based applications. This anomalous activity may indicate a potential device code phishing attack and requires immediate investigation due to the risk of unauthorized token issuance or post-authentication token abuse. | Medium | [T1528](https://attack.mitre.org/techniques/T1528), [T1078.004](https://attack.mitre.org/techniques/T1078/004) | xdr\_AnomalousDeviceCodeAuthV2 |
| Anomalous OAuth device code authentication activity<br>**Description**:An OAuth device code authentication was detected in a context that deviates from the user’s typical behavior and sign-in patterns. Device code flow is generally associated with command-line tools, IoT devices, or non-browser-based applications. This anomalous activity may indicate a potential device code phishing attack and requires immediate investigation due to the risk of unauthorized token issuance or post-authentication token abuse. | Medium | [T1528](https://attack.mitre.org/techniques/T1528), [T1078.004](https://attack.mitre.org/techniques/T1078/004) | xdr\_AnomalousDeviceCodeAuthV3 |
| Anomalous token exchange following device code authentication<br>**Description**:An OAuth Device Code authentication was detected in an unusual context based on user behavior and sign-in patterns. Due to the design of Device Code flows, this activity requires immediate investigation as it may indicate unauthorized token issuance or post-authentication abuse. | High | [T1528](https://attack.mitre.org/techniques/T1528), [T1078.004](https://attack.mitre.org/techniques/T1078/004) | xdr\_AnomalousDeviceCodeAuth |
