Prompted to sign in to Microsoft Defender Platform on W11/W2025 using Entra
Hi Microsoft Defender XDR community, Since around May 18th, our users on devices that are onboarded to Microsoft Defender for Endpoint are being prompted to sign-in to the following application using Entra on login to Windows. Application Microsoft Defender Platform Application ID cab96880-db5b-4e15-90a7-f3f1d62ffe39 Is anyone aware of a change that requires user sign-in to Entra as a requirement for Microsoft Defender for Endpoint? I have tried raising a support topic on this topic. Regards Chris
SessionID in IdentityLogonEvents?
Hi, The SessionId information is not available in IdentityLogonEvents. The SessionID data can only be found in the XDR table AADSignInEventsBeta. According to the documentation of that table "All sign-in schema information will eventually move to the IdentityLogonEvents table". I cannot find the SessionID in Sentinel anywhere else than in CloudAppEvents. Is this expected? How are we supposed to investigate stolen sessions without the sessionId information in Sentinel?
Blocking domain for group of users/or devices
Hi all, I am trying to find a way to block youtube for a group of users. We are using M365 E5 Security so can use Defender for endpoint or Defender for cloud apps. However, cant find a way to implement this. My idea was to create an INDICATOR in Endpoint that will be blocked, however I cannot select any group and "all devices" are included there in default. So not sure if this is a way. Neither Web Content Filtering cannot be used for my scenario Another idea was to use Defender for cloud apps. This looks promising but I am not sure how to target only specific users or devices? I managed to mark an app as "unsanctioned" but it applies for all devices. Any idea ? Thank you.Defender XDR - how to grant "undo action" Permissions on File Quarantine?
Dear Defender XDR Community I have a question regarding the permissions to "undo action" on a file quarantine action in the action center. We have six locations, each location manages their own devices. We have created six device groups so that Accounts from Location 1 can only manage/see devices from Location 1 as well. Then we created a custom "Microsoft Defender XDR" Role with the following permissions. This way the admins from location 1 can manage all Defender for Endpoint Devices / incidents / recommendations etc. without touching devices they aren't managing.. very cool actually! BUT - if a file gets quarantined, it might want to be released again because of false positive etc. I can do that as a global admin, but not as an admin with granularly assigned rights - the option just isnt there.. I don't want to give them admins a more privileged role because of - you know - least privileges. but i don't have the option to allow "undo action" on file quarantine events, besides that being a critical feature for them to manage their own devices and not me having to de-quarantine files i dont care about.. Any thoughts on how to give users this permission?Automated Attack Disruption Testing
In the past I vaguely remember seeing attack simulation walkthroughs for MDE and there still is a link in the MDE onboarding to explore simulations and tutorials but that now just takes me to the XDR homepage. There are cases where we're talking to customers about the capability of Defender XDR and want to showcase in a safe way, without endangering demo devices. With Automated Attack Disruption announcements at Ignite 2024, I'd like to be able to showcase this particularly in the area of Ransomware protection, similar to the case study "protecting against ransomware when others couldn't" from the Ignite AI-driven Ransomware Protection session. Does anyone have an updated link to the attack simulation walkthroughs that were available and also any similar walkthoughs for Automated Attack Disruption?
"Security Operations Admin User" Predefined Critical Asset classification
In our XDR instance, the new "Security Operations Admin User" predefined Critical Asset classification (introduced last month) contains a few non-privileged users. I can't figure out by what logic they were added to this classification. It seems that the users may be using laptops that are classified as "Security Operations Admin Devices," but I can't figure out why those devices are grouped that way, either. If it were a matter of an IT user logging onto one of the machines for support, there would inevitably a lot MORE users and devices in these groups. Does anyone know what kind of activity Microsoft uses to classify users and devices as "security operations admins?"
Audit logs for Vulnerability Management Remediations
Hello all, Are there any audit logs that can be queried for the creation of Remediations under Endpoint Vulnerability Management (https://security.microsoft.com/remediation/remediation-activities)? I know that there are API endpoints that can be queried for this information, but we are looking for additional options. The endgame is to have a ticket created in our external help desk ticketing system when someone creates a Remediation from a Recommendation. Any advice is appreciated! Thanks, - Steve
Full Automation Capabilities in Linux OS
Hello eveyone, We have configured Defender to detect viruses, and our goal is that if one of our assets downloads or encounters a virus, it is automatically hidden or removed. Based on the documentation regarding the automation levels in Automated Investigation and Remediation capabilities, we have set it to "Full - remediate threats automatically." While this works correctly on Windows devices, we have noticed that on Linux devices, the defender still detect the virus but it was not prevented. I was wondering if anyone has encountered this issue and, if so, how it was resolved? Additionally, as I am new to the Defender platform, I wanted to ask if could this issue potentially be resolved through specific Linux policies or functionalities? Best regards Mathiew
