logging
14 TopicsIdentityLogonEvents - IsNtlmV1
Hi, I cannot find documentation on how the IdentityLogonEvents table's AdditionalFields.IsNtlmV1 populated. In a demo environment, I intentionally "enforced" NTLMv1 and made an NTLMv1 connection to a domain controller. On the DC's Security log, event ID 4624 shows correct info: Detailed Authentication Information: Logon Process: NtLmSsp Authentication Package: NTLM Transited Services: - Package Name (NTLM only): NTLM V1 Key Length: 128 On MDI side however it looks like this: (using the following KQL to display relevant info here: IdentityLogonEvents | where ReportId == @"f70dbd37-af8e-4e4e-a77d-b4250f9e0d0b" | extend todynamic(AdditionalFields) | project TimeGenerated, ActionType, Application, LogonType, Protocol,IsNtlmV1 = AdditionalFields.IsNtlmV1 ) TimeGenerated ActionType Application LogonType Protocol IsNtlmV1 Nov 28, 2025 10:43:05 PM LogonSuccess Active Directory Credentials validation Ntlm false Can someone please explain, under which circumstances will the IsNtlmV1 property become "true"? Thank you in advanceDeploying MDI to multiple On-premise DC for monitoring purposes
Hello, When deploying MDI to all my on-premise domain controllers for monitoring purposes. Do I need to add new sensors for each dc? or can I use the package and access key from one sensor to all my dc's? Thank you!Solved766Views0likes2CommentsATP Sensor service is continuously trying to start but stops itself
Hello Techies, I've installed ATP Sensor across multiple DCs and it was completed successfully. However, the service is continuously trying to start and stop itself on every machine it's been installed on, with the following error message appearing in the Microsoft.Tri.Sensor-Errors log: Error ExceptionHandler Microsoft.Tri.Infrastructure.ExtendedException: RestrictCpuAsync failed, exiting ---> System.Net.Http.HttpRequestException: An error occurred while sending the request. ---> System.Net.WebException: The request was aborted: Could not create SSL/TLS secure channel. at Stream System.Net.HttpWebRequest.EndGetRequestStream(IAsyncResult asyncResult, out TransportContext context) at void System.Net.Http.HttpClientHandler.GetRequestStreamCallback(IAsyncResult ar) --- End of inner exception stack trace --- at async Task<HttpResponseMessage> System.Net.Http.HttpClient.FinishSendAsyncBuffered(Task<HttpResponseMessage> sendTask, HttpRequestMessage request, CancellationTokenSource cts, bool disposeCts) at async Task<TResponse> Microsoft.Tri.Common.CommunicationWebClient.SendAsync<TResponse>(byte[] requestBytes, int offset, int count) at async Task<TResponse> Microsoft.Tri.Common.CommunicationWebClient.SendWithRetryAsync<TResponse>(byte[] requestBytes, int offset, int count) at async Task Microsoft.Tri.Common.CommunicationWebClient.SendAsync(IVoidRequest request) at async Task Microsoft.Tri.Sensor.Common.ServiceProxy<TWebClientConfiguration>.SendAsync(IVoidRequest request) at async Task Microsoft.Tri.Sensor.SensorResourceManager.RestrictCpuAsync() --- End of inner exception stack trace --- Has anyone came across this issue? Really appreciate any pointers here. Thank you!Solved3.3KViews0likes6CommentsHow does MDI monitor DNS Requests?
Hello, the https://learn.microsoft.com/en-us/defender-for-identity/monitored-activities#monitored-user-activities-domain-controller-based-user-operations documentation states that MDI monitors all DNS requests that are performed against the domain controller. I wonder how this is done. Via event logs or DNS log file or ... ? Is there perhaps a blog article on how MDI works under the hood? Cheers MartinSolved4.4KViews0likes7CommentsDFI/DFE and IdentityQueryEvents DNS events
Should I expect to see any DNS query events from DFE endpoints in the IdentityQueryEvents schema table if I have DFI enabled? This doc - https://learn.microsoft.com/en-us/microsoft-365/security/defender/advanced-hunting-schema-tables?view=o365-worldwide#get-schema-information-in-the-security-center - states the IdentityQueryEvents schema is for "Queries for Active Directory objects, such as users, groups, devices, and domains", but I my understanding was DNS query events from DFE endpoints would show up in the DeviceNetworkEvents schema table.3.4KViews0likes3CommentsGMSA account accessing server apps
We have deployed Microsoft Defender for Identity on our tenant, and we have questions about why the GMSA is connecting to different app servers and IPs. We would like to understand why this is happening. SAMR is not implemented yet. Please let me know if more information is needed.Solved2.5KViews0likes6CommentsNo alerts getiing displayed ( DEFENDER FOR IDENTITY )
Hi, so i've recently setup the senor on DC and the status is healthy and running and i'm also able to recieve the test syslog on my SIEM, but i'm not getting any actual alerts on my SIEM or on the Cloud apps portal under the alerts and yes i;ve enabled the cloudapp - identity integration. What could be the issue ? Or How long does it takes for the alerts to actually get displayed once the sensor is deployed ?MS Defender for Identity to SIEM
I know that I can forward our MS Defender for Identity logs to a https://docs.microsoft.com/en-us/defender-for-identity/setting-syslog#:~:text=Microsoft%20Defender%20for%20Identity%20can,server%20through%20a%20nominated%20sensor. for our SIEM to ingest/monitor. Is there any other way aside from this method to get logs from MS Defender for Identity to SIEM? I also found that currently there is no public API for DFI unfortunately.Solved3.1KViews0likes4Comments