Wmi event types May 30, 2024 · For management applications that aren't in this table, you can determine the logon type from the logon type field in the audit logon events. How to resolve the issue There are two types of WMI Event Subscriptions: Temporary - Subscription is active as long as the process that created the subscription is active (They run under the privilege of the process) Jun 11, 2025 · When I open Administrative Events I get a box "Microsoft Windows-The instance name passed was not recognized as valid WMI data provider" The summary page shows Event 22. Dec 15, 2021 · When matching events occur, the system uses the IWbemObjectSink::Indicate method to notify the application of the events that have occurred. The following syntax is simplified from Managed Object Format (MOF) code and includes all inherited properties Jan 7, 2021 · The WMI Reference contains the following topics that discuss the core features of WMI. To understand the various ways you can log in to a system, use Microsoft’s official documents Learn about Windows Logon Type 3, its uses, related event IDs, and how to secure your network against potential threats. Net),CIM (PowerShell V3 only) and WMI events . The LifecycleEvent variables log normal starting and stopping events. This falls into the category of “to ship is to choose”. An event filter is a WMI class that describes which events WMI delivers to an event consumer. 4624: An account was successfully logged on On this page Description of this event Field level details Examples This is a highly valuable event since it documents each and every successful attempt to logon to the local computer regardless of logon type, location of the user or type of account. Feb 10, 2016 · But what about SERVER? The server will register 4624 or 4625 events in Security log with logon type = 3 but only when the application from WORK computer will try to access a shared resource on the server, e. The SREP adds a level of indirection to the interpretation required to use the WMI properties. Quickstart Before using WMI, a connection must be Mar 14, 2025 · Collect Information about WMI using Vendor Tools. Covers how to review the Windows Management Instrumentation (WMI) configuration, diagnose and troubleshoot WMI connectivity or access issues. If the List parameter is specified, the cmdlet gets information about the WMI classes that are available in a specified namespace. __InstanceCreationEvent or __NamespaceDeletionEvent are examples of intrinsic events. Mar 15, 2019 · WMI Infrastructure Providers Managed Objects WMI Management Applications include tools such as the Exchange System Manager. For other examples, see the TechNet Aug 31, 2018 · WMI events – alerts when WMI reaches a specific threshold This is important to make sure you are properly keeping an eye on your SQL Server. To specify a remote computer, use the ComputerName parameter. The following list lists, describes, and provides links to specific WMI class information. The WMI event type allows you to configure an alert if a specific event occurred in Windows. Apr 11, 2018 · Create SQL Server Job for Create Login and Drop Login Events The following job ("WMI Response – Audit Add/Remove Login Event") will be responding to the WMI event every time a login is created or deleted. The information that you find in this event may vary depending on specific attacker techniques. Essentially WMI provide the capability to monitor system wide events and notify user. In addition to the methods described above, various vendor tools may be used to collect WMI events (or indeed are configured to collect them by default). For more information, see WMI Security Constants. In much the same way you subscribe to an RSS feed to be notified when there is something new, we do the same thing. Note that this method only applies to current Powershell session and is not persistent. For example, Splunk supports WMI data collection. In using WQL, an application retrieves an event type against a specific database or database object. Sep 29, 2025 · You can use the event log preference variables to determine which events are recorded in the Windows PowerShell event log. Here is a function that you can use to […] Reports an instance modification event, which is a type of intrinsic event generated when an instance changes in the namespace. WMI uses Event Tracing (ETW). Aug 23, 2000 · Understanding WMI Eventing Windows Management Instrumentation (WMI) enables efficient and scalable monitoring, data collection, and problem detection. The Get-WmiObject cmdlet gets instances of WMI classes or information about the available WMI classes. May 8, 2025 · In this article, we’ll explore how WMI Event Subscriptions work, how attackers abuse them, and most importantly, how you can detect and investigate them during a digital forensic or incident Jan 7, 2021 · Notification of a change in the standard WMI data model is called an intrinsic event. Before we dig into the event types, it is important to understand the WMI query syntax used for the above query types. Using Powershell and Register-WmiEvent cmdlet Here’s a small script that I created to capture login Windows Security Log EventsWindows Audit Categories: For more information, see Calling a Method. One, per haps the most obvious example ofWMI acting as an event source is w Jan 7, 2021 · Information about WMI qualifiers, Managed Object Format (MOF) syntax, performance counter types, and other data used by WMI providers, scripts, and applications. Dec 13, 2022 · When monitoring these events you should whitelist built-in windows accounts like SYSTEM. Notification of a change in the standard WMI data model is called an intrinsic event. You can also retrieve class, instance, or schema data. For more Nov 29, 2020 · This post shows a small Powershell script that I created to capture login events using WMI event subscription in Windows. This is not even close to the complete list of image names listed under modular’s Event ID 1 config block. CreatorSID Data type: uint8 array Access type: Read-only Security identifier (SID) that uniquely identifies the user who creates a filter. There are two types of WMI Event Subscriptions: Feb 6, 2025 · Learn how to use the latest investigation methods to find malware WMI Event Consumers from DFIR expert Chris Ray. However, before you can use it, you need to understand WMI’s data model and eventing infrastructure. dll): The Virtual Machine Cluster WMI resource type is one used when virtual machine grouping (also known as virtual machine sets) has been configured. Jun 8, 2012 · There are two types of WMI event classes: implicit and generic. Apr 7, 2025 · How to view WMI events logged in Windows to troubleshoot DataConduIT issues Procedure Steps In Windows the WMI service logs activity using Event Tracing for Windows (ETW). Intrinsic Events An intrinsic event is an event that occurs in response to a change in the WMI data model (the data model or repository is the location where all the WMI information is stored). Jul 24, 2018 · The rest of the Object Types permissions use AUDIT_SERVER_OBJECT_GDR_EVENT WMI Class. To create a SQL Server Job, expand SQL Server Agent in SQL Server Management Studio and right click on Jobs and select New Job. For code examples, see WMI Tasks: Registry. May 31, 2018 · The RegistryKeyChangeEvent class represents changes to a specific key. In my opinion, monitoring WMI events or performance counters with SQL Server is an expensive substitute for a monitoring solution. Find a comprehensive list of all WMI classes and categories and a general overview of the key categories these classes fall into. I also show more persistent method using Managed Object Format and WMI repository. WMI also supplies a set of preinstalled permanent event providers and the permanent consumer classes that enable you to permanently monitor events. The format of the byte buffer is publicly documented [2], and after some reverse eingineering of the WMI-ACPI driver using a Mar 19, 2022 · A WMI event subscription was created to execute the backdoor by reading, decrypting, and executing the code directly from the string in the WMI property from the custom WMI class. __InstanceOperationEvent __InstanceCreationEvent May 22, 2015 · We can create subscriptions to three different event types, and the Windows PowerShell team gave us a cmdlet for each type: Register-ObjectEvent: Subscribe to . By grouping virtual machines together, managing the "group" is much easier than all of the virtual machines individually. For more information, see Audit logon events. These provide a great way to provide some asynchronous event handling to monitor various activities on your system. Objects from the system classes are used to support WMI activities, such as: event and provider registration, security, and event notification. Jan 7, 2021 · Before you register to receive an event, you must determine the types of events to receive: intrinsic or extrinsic. Mar 8, 2023 · Windows Management Instrumentation (WMI) is the infrastructure for management data and operations on Windows-based operating systems. Jan 7, 2021 · An event provider is a COM object that supplies WMI with notifications of intrinsic and extrinsic events. If the Query Jan 25, 2022 · Put in simple terms, WMI is an alternative means of managing, storing and querying information, generating events, and implementing functionality in Windows operating systems. event_type, _wmi_event. The __Event class has these properties. So, requesting all instances of the __Win32Provider system class in a particular WMI namespace will list all registered providers in that particular Nov 9, 2021 · In my domain we are getting event id 4624 for successful login for the deleted user account. Oct 22, 2013 · HI all, I need to search a system eventlog on multiple machines so i made a WMI Query for that. If adversaries create new accounts, event 4720 will detect this. The logon event has a field called logon type, this field indicates how the logon occurred. Both standards aim to provide an industry-agnostic means of collecting and transmitting information related to any managed component in an enterprise. An example of the "Server" type Securable permission is already covered in the previous tip when we provided the steps to monitor login's permission to access SQL Server. For more information about how to receive events, see Receiving a WMI Event. So, let’s install Sysmon and review. Mentioned in my previous article on temporary events, WMI events are a very powerful and useful way to monitor for a wide variety of things with the only downside of those events being… Aug 20, 2021 · WMI tasks for event logs obtain event data from event log files and perform operations like backing up or clearing log files. Nov 1, 2025 · Block persistence through WMI event subscription This rule prevents malware from abusing WMI to attain persistence on a device. 1. Activity is logged in the form of events that are visible in Event Viewer. Jan 8, 2021 · Event ID 1: Process Creation The previous configuration directive states that under Event ID 1, Process Creation, one of the listed images must be matched. Intrinsic Events, in turn, are represented by three distinct classes derived from the __Event class: __NamespaceOperationEvent, __InstanceOperationEvent, and __ClassOperationEvent. For more information and script code examples of using WMI classes to obtain a variety of operating system and hardware data Feb 26, 2013 · Using WMI Events The first technique is to use WMI. The following syntax is simplified from Managed Object Format (MOF) code, and includes all of the inherited properties. NET object events. WMI-rs WMI is a management API for Windows-based operating systems. Apr 3, 2019 · Windows Management Instrumentation (WMI) Event Subscriptions are one of many ways to establish persistence on a network. If a matching event is found, the component monitor changes status. Oct 23, 2019 · WMI supports three types of events from event providers: timer events, intrinsic events, and extrinsic events. Jan 31, 2013 · There are 4 types of events that you can register and use for Event Handling: Engine Events, Object events (. Along with GUI applications, a CLI interface, and PowerShell, WMI is another way to manage Windows systems. Overview Windows Management Instrumentation (WMI) allows, through Event Subscription, to maintain persistence on a Windows system. There are 2 types: Jan 15, 2024 · One such avenue often exploited by attackers is Windows Management Instrumentation (WMI) event consumers. WMI Filter Cheat Sheet - This is my collection of WMI filters that I have collected over the years to assist with narrowing group policy object scopes. This can be extremely useful in detecting and defeating insider threats. SECURITY_DESCRIPTOR Data type: uint8 array Access type: Read-only Descriptor that the event provider uses to determine which users can receive the event. An event MOF class contains a Guid class qualifier whose value must match the value in the Header. That doesn’t mean that you can’t use WMI events with PowerShell, it just means that you need to leverage the . WMI makes data about Windows manageable objects available through WMI providers. Mar 15, 2021 · If an event is dropped, WMI fires __EventDroppedEvent. The provider code exposes a group of supported classes, instances, and events to pass data to WMI. Jun 7, 2021 · Learn about how WMI events work and how you can create some awesome tools with PowerShell in this tutorial! Jan 15, 2013 · If you are familiar with Windows Management Instrumentation (WMI), there are different types of WMI queries possible. Logging specific to DataConduIT will also appear in Event Viewer. This class is one of the standard event consumers that WMI provides. 2 days ago · The Windows WMI-ACPI driver likely uses wmilib [1] to interact with the WMI service in userspace. Some threats can abuse the WMI repository and event model to stay hidden. You can do the same operations through the wevtutil command-line tool. NET: System. In Windows-based computers, all authentications are processed as one of several logon types, regardless of which authentication protocol or authenticator is used. You can also implement a user-mode WMI event consumer provider. WMI stores the SID of the user who creates an instance of __EventConsumer or the Administrator SID, depending on the operating system. WMI is the Microsoft implementation of the Web-Based Enterprise Management (WBEM) and Common Information Model (CIM). The WMI Infrastructure has two components - the WMI Service (winmgmt) including the WMI Core, and the WMI Repository. Think of it as having a direct SQL interface to your entire Windows infrastructure — but instead of querying databases, you’re querying Jan 28, 2007 · PowerShell V1 does not provide native support for WMI events. Properties and methods are in alphabetic order, not MOF order. Configure Sysmon to capture WMI Event Filter, Consumer, and Binding Activity. For more information about using the WMI registry event classes, see the Modifying the System Registry section. WMI events occur when a change happens in the WMI namespace being monitored. We set up a subscription in WMI to a particular type of event. Said library uses plain byte buffers for exchanging data, so the WMI-ACPI driver has to convert between those byte buffers and ACPI objects returned by the ACPI firmware. NET classes to do so. SIEM (InsightIDR) will pull only the Security logs when polling for the Generic Windows Event Log. This includes data, event, and schema queries. For example, you can request that WMI return all the objects representing shut-down events from your desktop system. 0, this cmdlet has been superseded by Get-CimInstance. Because of this bug, WMI calls to the Win32_Product class create many unnecessary Windows event log messages Windows Event Log Monitors are SAM component monitors that scan Windows Event Logs for recent events that match your defined criteria. A management application can query, enumerate data, run provider methods or subscribe to events. Nov 9, 2023 · This section provides WMI class and reference page information. Feb 14, 2025 · WMI Event Queries are often used in system monitoring, automation, and security tools. Though this system has been designed to allow for fast, efficient system administration, it also has a spookier side: it can be abused by insiders as a tool to surveil other employees. The selection is intended to demonstrate the capability of sysmon modular. Thus, we will be focusing on the SQL Server event alerts. The event type MOF class defines the actual event data. Connecting this event source to SIEM (InsightIDR) will allow for a highly thorough view into one or a small number of high risk assets, such as shared systems, compromised users, or assets with frequent suspicious activity. There are two other checks to test the overall health of WMI on the device: The WMI repository integrity test checks that Configuration Manager client entries exist in WMI. A must-read for IT admins. You can tie this event to logoff events 4634 and 4647 using Logon ID. The return from a watcher is in fact a special _wmi_event object, subclass of a conventional _wmi_object, and which includes, for intrinsic events, the event type, timestamp and previous value for a modification as attributes: _wmi_event. Nov 9, 2023 · The ActiveScriptEventConsumer class runs a predefined script in an arbitrary scripting language when an event is delivered to it. For more information, see Binding an Event Filter with a Logical Consumer Aug 14, 2013 · Wrapping up my series on PowerShell and Events, I will be talking about Permanent WMI Event Subscriptions and creating these using PowerShell. Event Log enabled - The ui_realtime job requires the Event Log to be running in order for the job to work, although this will not prevent the agent from starting (except on Windows XP and Windows Server 2003). The event is formulated by a query. For years, while this powerful technology was still unknown to most, attackers had already learned how to Jun 27, 2012 · You can also write custom queries, which allow you to query by any of the WMI parameters you can script (including event ID). It identifies the type of shutdown, which can be a user log off, complete shutdown, or restart. Though the act of clearing an event log itself generates an event, attackers who know ETW well may take advantage of tampering opportunities to cease the flow of logging temporarily or even permanently, without generating any event log entries in Feb 20, 2025 · Learn how to enable WMI on Windows 10 with our step-by-step guide, perfect for beginners looking to manage system settings efficiently. Win2012 adds the Impersonation Before we dig into the event types, it is important to understand the WMI query syntax used for the above query types. Jun 25, 2009 · WMI Code Creator is a great tool for learning WMI that, among other things, lets you explore WMI event classes on the local or remote computer and generate code for receiving event notifications. 2 The WMI provider types A WMI provider registered in the CIM repository is an instance of the __Win32Provider system class. There are six event log preference variables; two variables for each of the three logging components: the engine (the Windows PowerShell program), the providers, and the commands. It also has the benefit of letting you pull out and dust off all those VBS WMI queries that are out there. An implicit event class is really easy to use in Windows PowerShell 2. Permanent WMI event subscriptions can be configured to persist across system reboots. There are two types of events in WMI Intrinsic and Extrinsic events. The SEEP converts the SNMP event data directly to WMI class properties, whereas the SREP does not. Nov 24, 2023 · Overview In this post, we are going to demonstrate how to build a script to automate persistence lay down via WMI Event Subscription and dynamically generated PowerShell payloads. Searching for generic strings that we know will be present in WMI event consumer callbacks would be very valuable when looking for this persistence method. Jan 7, 2021 · The following table lists the classes for WMI preinstalled permanent consumers. You can use the parameters of Register-WmiEvent to Oct 16, 2017 · When a __EventFilter, and any of the consumer type class objects are used in the creation of a Binder instance in the WMI CIM Database to create a permanent event a eventlog entry with Id 5861 is created. The changes apply only to the key, not its subkeys. May 6, 2019 · What is WMI / WQL and why you might need it. 0 because the class already knows how to do events. May 7, 2022 · The Win32_LogicalDisk WMI class represents a data source that resolves to an actual local storage device on a computer system running Windows. Jan 12, 2022 · Finally, you have optics into WMI event consumer creation and execution of the consumer in a new WMI AMSI callback. In source of management events. Properties are listed in alphabetic order, not MOF order. There are two types of WMI Event Subscriptions: Temporary - Subscription is active as long as the process that created the subscription is active (They run under the privilege of the process). TIME_CREATED Data type: uint64 Access type: Read-only Unique value that indicates the time the event is generated. Jun 2, 2023 · Windows Management Instrumentation (WMI) is a subsystem of PowerShell that gives admins access to powerful system monitoring tools. Guid member of the EVENT_TRACE structure. The Health variables Jan 7, 2021 · The event providers require different classes because they use different mechanisms in the presentation of the SNMP event data. WMI events are those events that happen when a specific Event Class instance is created or they are modified in the WMI Model. Jan 6, 2020 · I can get all event log messages via WMI in powershell like Get-WmiObject -query "SELECT * FROM Win32_NTLogEvent WHERE Logfile = 'Security'" To enumerate all event logs I use Get-WmiObject Starting in PowerShell 3. For example, use the ActiveScriptEventConsumer class to define the script that executes when a specified event occurs. This crate provides both a high-level Rust API (focused on data retrieval, event queries and method execution), as well as a mid-level API for easy access to native WMI methods. Attackers leverage events in the same manner for automating actions and for persistence. Dec 24, 2018 · Event Tracing for Windows (ETW) is the mechanism Windows uses to trace and log system events. Jul 16, 2021 · The event MOF class logically groups one or more event type MOF classes. This blog post delves into the nuances of WMI event consumers, shedding light on their types, common vectors of exploitation, and proactive measures for detection and prevention. Although information about installed software is available via both SNMP and WMI, FortiSIEM uses SNMP to obtain installed software information to avoid an issue in Microsoft's WMI implementation for the Win32_Product WMI class - see Microsoft KB 974524 article for more information. Jun 6, 2025 · By default, WMI events are not traced. For more information, see Monitoring and Responding to Events with Standard Consumers. i have to search for that particular event log. VM Groups enable checkpoints, backup and replication of VMs that form a guest WMI makes data about Windows manageable objects available through WMI providers. This is a 64-bit value that Nov 9, 2023 · For more information about constants used to set this security descriptor, see WMI Security Constants. Attackers often clear event logs to cover their tracks. on every day 2 to 3 pm. Use this reference to construct queries that return information from this table. An attacker can monitor (and take certain actions) when these events occur by using subscriptions that monitor for them. May 18, 2025 · What is WQL? WQL (Windows Management Instrumentation Query Language) is a specialized query language designed specifically for retrieving system-level information from Windows machines through the Windows Management Instrumentation (WMI) infrastructure. Events are considered "recent" based on the age of the event, as compared to the application polling frequency. WMI uses the WQL to submit event queries and define the type of events to be returned. Properties are Because new WMI event consumers on Windows enpoints are rather rare, this artifact provides a high-fidelity indicator of persistence activity. There are three major types of WMI event classes, all of which are derived from the __Event WMI class: Intrinsic Events, Extrinsic Events, and Timer Events. Jan 6, 2021 · The Win32_LogonSession WMI class (see Retrieving a WMI class) describes the logon session or sessions associated with a user logged on to a computer system running Windows. In turn, a management application or script can call provider methods to manipulate provider-supplied data. The Collector will poll the Generic Windows Event Log every 75 seconds. You can create instances of these classes to provide the permanent consumer class to supply the logical consumer that responds when triggered by the events specified in the filter. Timer events These can occur in two ways: once at a predetermined time, or periodically. This is a user-mode component that WMI can automatically load when events of a specified type occur. The following table lists the different types of queries you can make. For more information and examples, see replace: Receiving Events Securely. Notification of a change that a provider makes to define a provider event is called an extrinsic event. This procedure describes how to use Event Viewer to enable WMI event tracing and locate WMI events. When the subscribed WMI event is raised, it is added to the event queue in your local session even if the event occurs on a remote computer. The WMI query syntax for event queries is a bit different and deserves a discussion. The following syntax is simplified from Managed Object Format (MOF) code and includes all of the inherited properties. Mar 15, 2019 · Virtual Machine Cluster WMI (vmclusres. An intrinsic event reports an internal data change to WMI, while an extrinsic event reports a user-defined event not described by an intrinsic event. An event filter also describes the conditions under which WMI delivers the events. If WMI has been turned off, but has a startup type of "Automatic" or "Manual," the agent will attempt to start WMI. Jan 7, 2021 · WMI creates a set of these classes whenever a new WMI namespace is created. What Is a WMI Event Consumer? Windows Management Instrumentation (WMI) Event Consumers provide a framework to automate actions based on triggers. The Register-WmiEvent cmdlet subscribes to Windows Management Instrumentation (WMI) events on the local computer or on a remote computer. Apr 21, 2025 · Learn the basics of Windows Management Instrumentation (WMI) and how to retrieve system information using PowerShell. Basically, the __Win32Provider system class registers information about a provider’s physical implementation with WMI. Oct 23, 2019 · WMI and . The Splunk platform supports the use of Windows Management Instrumentation (WMI) providers for access to Windows performance and event log data on remote Windows machines without the need to install software on those machines. Fileless threats employ various tactics to stay hidden, to avoid being seen in the file system, and to gain periodic execution control. In this example, I will create an event which fires when a file is dropped into a specific folder. g. timestamp and _wmi_event. If this check fails, reinstall the Configuration Manager client. WMI events, both temporary and permanent (survive a reboot), have been used for over a decade by vendors and enterprise users to automate actions on systems. Management Lets You Take Advantage of WMI APIs within Managed Code The Splunk platform supports the use of Windows Management Instrumentation (WMI) providers for access to Windows performance and event log data on remote Windows machines without the need to install software on those machines. In general, suspicious WMI event consumers will be of the following types, which are indicated in the event data for event ID 5861: CommandLineEventConsumer Removing a Windows Management Instrumentation (WMI) event subscription terminates adversary persistence and/or lateral movement via malicious content execution triggered by a WMI event subscription. Jan 7, 2021 · One of the main tools of Windows Management Instrumentation (WMI) is the ability to query the WMI repository for class and instance information. The Five Primary Types of WMI Event Consumers:There are five primary types, with CommandLineEventConsumers and Sep 29, 2022 · Windows Management Instrumentation (WMI) provides a unique interface to manage a local or remote network or computer and thus can be used by both Red and Blue Teams. To get events in the event queue, use the Get-Event cmdlet. If you subscribe to this event, it returns the event that is dropped, and a reference to the __EventConsumer represents the failed consumer. Jan 7, 2021 · You can create event monitoring scripts or applications that temporarily monitor when events occur. Jan 7, 2021 · Events may be reported by WMI or providers. Some objects are temporary, and some are stored in the repository as instances of the system classes. Jan 7, 2021 · The __EventConsumer class has these properties. In the context of today’s tip, we shall look at event queries. Jun 11, 2025 · The miscellaneous device events or DeviceEvents table in the advanced hunting schema contains information about various event types, including events triggered by security controls, such as Microsoft Defender Antivirus and exploit protection. Anyone writing a WMI provider can have the benefit of this functionality at no cost for their customers. This is the Complete WMI query guide with WMI Explorer namespaces enumeration, Powershell and CMD query The Win32_ComputerShutdownEvent is a Windows Management Instrumentation (WMI) event class that represents events when a computer begins the process of shutting down. The concept is similar to Windows Scheduled Tasks, except: They are not as user-friendly They allow for more refined actions and triggers. You can configure an event access security descriptor to allow an event to be delivered only when the local system account generates the event. This crate also uses serde for transforming between native WMI class objects and plain Rust structs. previous respectively. For more information about how to retrieve class or instance data, see Manipulating Class and Instance Information. By the end, we wi… Apr 18, 2011 · Types of Wmi Events Before to work with the WMI Events we need a brief introduction. To get WMI data into Splunk Cloud Platform, you can install a universal or heavy forwarder on a Windows machine and configure that forwarder to use the WMI data input to Oct 4, 2022 · Review Windows event logs to see if there are any related activities that might be stopping the service. Event Log Explorer will try to open resource file with event descriptions. Jan 19, 2020 · Hello, DFIR Folks! In this blog post we will take a quick look at how threat actors can utilize Windows Management Instrumentation (WMI) Event Consumers to obtain persistence on a compromised windows machine, and how we as Defenders can detect these kind of malicious activities by using PowerShell and the Windows Event Log. Oct 31, 2023 · WQL is a simplified subset of structured query language (SQL), with some WMI-specific extensions. In this case the class is one of several system classes related to events. An event filter called BfeOnServiceStartTypeChange was implemented to execute the PowerShell code regularly. The WMI Provider for Server Events translates the query into an event notification, effectively creating an event notification in the target database. The provider is a DLL or EXE that is installed on a Windows system, and registered with WMI. Logon type 10: RemoteInteractive. Depending on the type of event and the availability of an event provider, WMI may assume the responsibility of g nerating event notifications. exists two types of WMI events intrinsic events and extrinsic events. Dec 17, 2024 · Apart from representing system information, WMI also provide a powerful feature called eventing.