Windows measurement instrumentation

FreeExtra The FreeExtra method frees any extra memory allocated while the array increased. This method has no effect on the size or upper bound of the array. This method can also return system properties. This method allows the provider to respond asynchronously by returning one instance at a time. GetAnalysis Gets the results of a successful query parse. GetAt Returns a single character specified by an index number.

GetAt Gets the array element at the specified index. Getbool The Getbool method retrieves a Boolean property. GetData The GetData method gains direct access to the elements in the array.

The pointer can be used to get and set properties of that embedded object. GetErrorCodeText Returns the text string description associated with the error code. GetInstancePropertiesByPath Retrieves the instance identified by a particular object path, with only the specified properties populated. The properties to be populated are named in a CHString array. Keys are indexed from 0 zero , though the order of the keys is not significant. A key is indexed from 0 zero , but the key order is not significant.

The count does not include a NULL terminator. GetMethod Returns information about the requested method. GetNames Retrieves the names of the properties in the object. Alternately, depending on the filter value of IFlags, this method retrieves the names of certain qualifiers. The name returned is the second parameter originally given to the provider constructor. GetNamespaceAt Retrieves a namespace based upon its index. GetNext The GetNext method gets a pointer to the next instance in the collection.

This method only retrieves objects from the namespace associated with the current IWbemServices object. GetObjects Inserts the non-key properties of the objects in the supplied array.

You can use this handle to identify properties when using IWbemObjectAccess methods to read or write property values. You can use this method with properties that are a member of an instance or a class definition. GetQualifierSet The IWbemClassObject::GetQualifierSet method returns an interface pointer that allows read and write operations on the set of qualifiers for the entire class object, whether the object is an instance or a class definition.

A restricted event sink is one which filters a subset of the events defined in the event provider's registration. GetScope Retrieves a scope based upon an index. GetScopeAsText Retrieves a scope in text format based on an index. This method provides for fully concurrent access. GetSize The GetSize function obtains the pointer array size. Because indexes are zero-based, the size is one greater than the largest index.

GetSize The GetSize method gets the size of the array. GetSize The GetSize method returns how many items are in the list. GetStatus The GetStatus method determines whether a property exists and, if so, determines its type. GetTime The GetTime method returns the time as a bit integer. GetTime The GetTime method returns the time span as a bit integer. Because array indexes are zero-based, this function returns a value that is one less than GetSize.

GetValuesForProp The GetValuesForProp method returns all of the values for a particular property that are generated by that property as it appears within the query.

Indicate Called by a source to provide a notification. Initialize Called by Windows Management to initialize a provider to receive client requests. All types of providers must implement this method. InsertAt The InsertAt method inserts an element or multiple copies of an element or all the elements of another array at a specified index.

IsRelative The IWbemPath::IsRelative method tests if the path, as already set in the parser, is relative to a particular computer and namespace.

The method can return TRUE only if the path actually has a class name. Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. Feedback will be sent to Microsoft: By pressing the submit button, your feedback will be used to improve Microsoft products and services.

Privacy policy. MI is fully compatible with previous versions of WMI, and provides a host of features and benefits that make designing and developing providers and clients easier than ever. For example, many newer providers are written using the MI framework, but can be accessed using WMI scripts and applications. For more information about the differences between the two technologies, see Why Use MI? The insider creates a permanent event on the target system thereby relieving him of having to hang around in a shell session — the event stays forever or until its explicitly removed.

I agree: this starts looking like too much of a hike for an average employee turned insider menace. For kicks, I checked around on forums , and there are lots of people pulling their collective hairs out trying to get WMI permanent events to work.

However, this technique is not outside the capabilities of a Snowden or other smart system admins that decide to become a threat. These methods are not meant to be a training ground for would-be hackers or disgruntled employees who want to strike back. In my own testing, I was able to get my permanent event working on the target system without too much hair-pulling. Keep in mind that this was quite difficult to do with WMI temporary events that only last as long as the PowerShell session.

An added bonus is that the permanent WMI event is also persistent: if the computer is rebooted the event triggers remain. Keep in mind that WMI eventing is not an obvious first stop for security staff analyzing an attack. For example, the event consumer PowerShell can act as a launcher by downloading — using DowloadString — malware held on a remote server.

Fortunately, there is a way to list event filters, consumers, and binding objects with the Get-WmiObject alias gwmi cmdlet:. More on that below. At least IT has a way to quickly see the WMI permanent events that have been registered and then can start looking at the actual event scripts for signs of threats. They can try stopping the Winmgmt service, which runs WMI.

This turns out not to be easy. In my own testing, I was not able to affect this service —it automatically restarted itself. There are warnings all over the web and in forums cautioning against this strategy of disabling WMI.

I would listen to them: caveat WMI! Thankfully, there are more effective ways to discover permanent events and other suspicious Windows event activities than using the aforementioned Powershell cmdlet. There is Sysmon! Help is here! Users of previous-generation MON software will be familiar with the layout and functionality of the software, and will be impressed with the additional features that make the software even easier to use. With intuitive drop-down menus and fill-in-the blank tables, even new users can quickly navigate through the software.

The MON software can display both current and multiple archived chromatograms on the screen, streamlining the time needed to perform routine analyzer maintenance. The MON PLUS program provides configurable automatic collection and storage of analysis and calibration data from the gas chromatograph controller.

Configuration of the specific chromatographs to be polled, timing of polling, and specific data to be collected from each is defined by the user through the setup of polling control files. An Auto-Sequencing module interprets the commands in a polling control file and performs the collection and storage of data. Maximize plant operating performance from start-up to shutdown with Emerson service technicians. CEU-certified standard and customized training for specifications, commissioning, and operations.