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GB disk space installed on the domain controller. When running as a virtual machine, all memory is required to be allocated to the virtual machine at all times.For optimal performance, set the Power Option of the machine running the Defender for Identity sensor to High Performance by running the following command.POWERCFG.EXE /S SCHEME_MIN4) Directory Service Account (DSA) – When creating the DSA, you have three options:Group Managed Service Account (gMSA) (recommended) – This is the recommended DSA option due to its more secure deployment and management of passwords. You need at least one Directory Service account with read access to all objects in the monitored domains (more on this later).A regular user account in Active Directory – This option is easy to get started with but requires additional management overhead of passwords.Local service account – This option is used out-of-the-box and deployed by default with the sensor, no additional configuration steps are required. This option has limitations such as no support for SAM-R queries and multi-forest scenarios.5) Licensing – Microsoft Defender for Identity is available as part of Enterprise Mobility + Security 5 suite (EMS E5), and as a standalone license. You can acquire a license directly from the Microsoft 365 portal or through the Cloud Solution Partner (CSP) licensing model.6) Internet connectivity – Defender for Identity sensors must be able to connect to the Internet, but please do NOT put or open domain controllers to the public Internet, many domain controllers are completely restricted from the Internet. It’s strongly recommended to use a proxy server instead of allowing direct outbound connectivity to the Internet through port 443, and then allow the Defender for Identity sensors to access through that proxy only your dedicated Defender for Identity Cloud Service.Ensure your network appliances and firewalls strictly limit and control any traffic you need to open following the official Defender for Identity firewall requirements.7) Download the Defender for Identity Sizing Tool – The recommended and simplest way to determine the capacity of your Defender for Identity deployment is to use the Defender for Identity Sizing Tool.Assuming you have all the prerequisites in place, take the following steps:Deploying Microsoft Defender for IdentityMicrosoft Defender for Identity (MDI) relies on specific audit event log entries to provide detections and add additional information on what or who performed those actions on your AD Domain Services (AD DS), Active Directory Certificate Services (AD CS), or AD Federation Services (AD FS) infrastructure.The following relevant Windows events need to be configured in the Advanced Audit Policy on each AD DS, AD CS, or AD FS server:For Active Directory Federation Services (AD FS) events1202 – The Federation Service validated a new credential1203 – The Federation Service failed to validate a new credential4624 – An account was successfully logged on4625 – An account failed to log onFor Active Directory Certificate Services (AD CS) events4870: Certificate Services revoked a certificate4882: The security permissions for Certificate Services changed4885: The audit filter for Certificate Services changed4887: Certificate Services approved a certificate request and issued

Clients allowed to make remote calls to SAM3) Click the Edit Security… button and add the Directory Service Account (DSA) gMSA service account you created earlier with Remote Access set to Allow.Adding MDI Directory Service Account gMSA4) Last, proceed to assign this new GPO to all computers except domain controllers.Now that you’re good to go with SAM-R, let’s jump into Microsoft 365 Defender to perform some configuration before installing the MDI sensor(s).Create MDI Workspace in Microsoft 365 DefenderIn the Microsoft 365 Defender portal (security.microsoft.com), we first need to set up the MDI workspace to be able to download the sensor and add our gMSA for the MDI configuration. To complete this step, you require the permissions of at least the Security Administrator role (Use always least privileged accounts).To create the MDI workspace, take the following steps:1) In the Microsoft 365 Defender portal, as a Security Administrator or Global Administrator, then navigate to Settings | Identities. Allow Microsoft 365 Defender (60 seconds) for the workspace to provision successfully.Preparing Microsoft Defender for Identity Workspace2) Next, we will add both the Directory Service Account (DSA) and action gMSA service accounts that we provisioned earlier.3) Go to Settings | Identities | Directory service accounts | + Add credentials as shown in the figure below. In the pop-out blade, ensure that the Group managed service account is checked, and then enter the account and domain name of your DSA, then click Save.Adding DSA gMSA in the Microsoft 365 Defender portal4) Next, jump to the Manage action accounts blade under (Directory service accounts ) and choose + Add credentials, then repeat what you did in the last step, but this time for the action account gMSA.Adding action account gMSA in the Microsoft 365 Defender portalMoving now to the final step of installing Microsoft Defender for Identity (MDI) sensor(s) on domain controllers.Download and Install the MDI SensorIn the previous steps, we covered all the necessary configurations to install the MDI sensor, it’s now time to install it. To do this, you need to perform the following steps on each domain controller in your environment:1) First, you need to verify that the domain controller has connectivity to relevant MDI endpoints by using the official steps as described on this web page.2) We will use Powershell to validate access to the instance URL. For the commercial cloud, use and for Government Community Cloud (GCC), use To do that, we will need to get the MDI workspace name.3) Open the Microsoft 365 Defender portal at security.microsoft.com, then go to Settings | Identities, under General click on About, and then copy the Workspace Name. In this example, the Workspace Name is mdich.MDI workspace name4) As we know, it’s not a best practice to browse on domain controllers, we will use the following PowerShell command to verify that the machine has connectivity to the MDI instance. On your domain controller, run the following command. Make sure to replace the workspace name before *sensorapi.atp.azure.com or *sensorapi.gcc.atp.azure.com to match your environment.$HTTP_Request = [System.Net.WebRequest]::Create(' note

Microsoft Defender for Endpoint Connector for VMRay Advanced Malware SandboxLatest Version: 1.1 - Release Date: 10/31/2023OverviewThis project is an integration between Microsoft Defender for Endpoint and VMRay products: Analyzer, FinalVerdict and Totalinsight.The connector will collect alerts and related evidences, and query or submit these samples into VMRay Sandbox.It accelerates the triage of alerts by adding comments to the alert in MS Defender Console with the analysis of the sample.It also retrieves IOC values from VMRay and submits them into Microsoft Defender for Endpoint.Project Structureapp # Main project directory├─── config # Configuration directory│ └─── __init__.py │ └─── conf.py # Connector configuration file├─── db # Directory for SQLite3 database├─── downloads # Directory for extracted binaries├─── lib # Library directory│ └─── __init__.py │ └─── MicrosoftDefender.py # Microsoft Defender │ └─── SubmitEvidencesToVmray.ps1 # Uploading quarantine files to MS blobfor Endpoint API functions│ └─── VMRay.py # VMRay API functions│ └─── Models.py # Helper classes for data processing│ └─── Database.py # Helper classes for database├─── log # Log directory for connector └─── microsoft-defender-connector.log # Log file for connector└─── __init__.py└─── connector.py # Main connector application└─── requirements.txt # Python library requirementsRequirementsPython 3.x with required packages (Required Packages)Microsoft Defender for EndpointVMRay Analyzer, VMRay FinalVerdict, VMRay TotalInsightDocker (optional)InstallationClone the repository into a local folder.git clone the requirements.pip install -r requirements.txtUpdate the conf.py file with your specific configurations.Microsoft Defender for Endpoint ConfigurationsCreating Application for API AccessOpen and Microsoft Entra Domain Services serviceClick App registrationsClick New registration buttonEnter the name of application and select supported account types.In the application overview you can see Application Name, Application ID and Tenant IDAfter creating the application, we need to set API permissions for connector. For this purpose,Click API permissions tabClick Add a permission buttonSelect APIs my organization usesSearch WindowsDefenderATP and click the search resultOn the next page select Application Permissions and check permissions according to the table below. And click Add permissions button below.CategoryPermission NameDescriptionAlertAlert.Read.AllNeeded to retrieve alerts and related evidenceAlertAlert.ReadWrite.AllNeeded to enrich alerts with sample informationMachineMachine.LiveResponseNeeded to gather evidences from machinesMachineMachine.Read.AllNeeded to retrieve information about machinesTiTi.Read.AllNeeded to retrieve indicatorsTiTi.ReadWriteNeeded to retrieve and submit indicators (application specific)TiTi.ReadWrite.AllNeeded to retrieve and submit indicators (general)LibraryLibrary.ManageNeeded to upload custom ps1 script for retrieving av related evidencesNote:In order to retrieve files quarantined by the MS Defender antivirus (av) engine, we need to run powershell code on the endpoint.The related credentials must be well secured.After setting only the necessary permisions, click the Grant admin consent for ... button to approve

Updated 08/10/2024—Microsoft Defender for Identity expands coverage with 10 new Active Directory security posture recommendations. These recommendations, part of Microsoft Secure Score, are new security posture reports related to Active Directory infrastructure and Group policy Objects (GPO).Updated 20/09/2024 — Microsoft Defender for Identity expands to Microsoft Entra Connect Server (formerly Azure AD Connect or AAD Connect). This includes new detections, security recommendations, and activity types in the “IdentityDirectoryEvents” table Advanced Hunting. Make sure to install the latest version of the sensor on the server with Entra ID Connect installed as you usually would do on domain controllers, etc.Updated 16/08/2023 — Microsoft Defender for Identity team released Active Directory Certificate Services (AD CS) sensor. AD CS is a Windows Server role that issues and manages public key infrastructure (PKI) certificates in secure communication and authentication protocols.Securing sensitive data and maintaining a robust cybersecurity posture is paramount in today’s digital landscape. Microsoft Defender for Identity (MDI) is a cutting-edge solution that offers advanced threat protection by leveraging cloud intelligence and behavioral analytics.This guide is your go-to resource for understanding the deployment process of Microsoft Defender for Identity (MDI). Whether you’re a seasoned IT professional or a newcomer to cybersecurity, this article will provide you with actionable insights to safeguard your organization’s digital assets effectively.Table of ContentsIntroductionMicrosoft Defender for Identity OverviewMDI Sensor for Active Directory Certificate ServicesMDI Sensor for Microsoft Entra Connect ServerPrerequisitesDeploying Microsoft Defender for IdentityEnabling Advanced Audit PolicyCreate group Managed Service AccountsInstall the gMSA account on each DCCreate an action accountEnable Security Account Manager RemoteCreate MDI Workspace in Microsoft 365 DefenderDownload and Install the MDI SensorAttack Simulations for MDIRemote code execution attemptsData exfiltration over SMBSummaryIntroductionWithin the realm of enterprise IT, on-premises Active Directory (AD) remains extensively utilized. As Microsoft’s attention and priorities pivot towards Azure, Microsoft Entra, Microsoft 365, and cloud-based services, on-premises AD has experienced limited advancements over the past decade, though it continues to receive support!The current trajectory leans towards adopting Microsoft Entra ID (formerly Azure AD), Microsoft Intune, and similar cloud-based services. However, a substantial number of organizations, especially those with large operations or complex infrastructures, will persist in a hybrid condition. This entails the continued deployment of synchronized on-premises AD in conjunction with Microsoft Entra ID (formerly Azure AD) for a considerable duration.A while ago, we wrote a step-by-step guide on how to install and evaluate Microsoft Advanced Threat Analytics (ATA). Advanced Threat Analytics (ATA) is an on-premises platform that helps protect your enterprise from multiple types of advanced targeted cyber attacks and insider threats.ATA was discontinued by Microsoft and was replaced with Microsoft Defender for Identity service. The mainstream support of Microsoft Advanced Threat Analytics (ATA) was ended on January 12, 2021, and the extended support will be continued until January 13, 2026. For more information, check the announcement end of mainstream support for Advanced Threat Analytics.ATA is a standalone on-premises solution with multiple components, such as the ATA Center that requires dedicated hardware on-premises. However, Defender for Identity (MDI) is a cloud-based security solution that