My question is how have others been parsing this Powershell file among other esoteric Windows Event logs? Currently I am using the Splunk app TA_windows. It parses some of the generic logs quite well. Will effort be done by Splunk or the community to parse other such logs? Am I going about this completely wrong? Here is my immediate regex issue. I want to extract the field HostApplication. As you can see the line may be one or two lines in the raw event. This works in the search bar but does not work as an extracted field. | rex field=_raw "HostApplication=(?P.+\s(?=\s))" Field extraction = HostApplication=(?P.+\s(?=\s)) _raw event= LogName=Windows PowerShell SourceName=PowerShell EventCode=400 EventType=4 Type=Information ComputerName=ABC-123 Keywords=Classic Message=Engine state is changed from None to Available. Details: NewEngineState=Available PreviousEngineState=None SequenceNumber=13 HostName=ConsoleHost HostVersion=5.1.14409.1005 HostId=9b3e7caa-29af-42fe-8cfe-b6d6c9d83ead HostApplication=C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe -NoLogo -Noninteractive -ExecutionPolicy Bypass & 'C:\WINDOWS\CCM\SystemTemp\4eef3f2ec987c2.ps1' EngineVersion=5.1.14409.1005 RunspaceId=33010d86-d566-434f-aa74-ebb0b0b600fa Can someone help with the strategic questions and my immediate regex issue? ... View more

Can someone help me out with a regular expression to parse Microsoft-Windows-TaskScheduler/Operational logs? I don't think I am the first to want to extract fields from this log? I am pulling in the above logs. I tried renderxml=true and renderxml=false. I ran into this error below when trying to extract manually and the solution is to use my own regular expression. The extraction failed. If you are extracting multiple fields, try removing one or more fields. Start with extractions that are embedded within longer text strings. An example of the line I am trying to extract values is: Message=Task Scheduler started "{CD0B4355-0A74-4D11-A816-04E3C5B138C5}" instance of the "\Adobe Flash Player Updater" task for user "contso\system301$" I want to extract "\Adobe Flash Player Updater" as TaskName and "contso\system301$" as TaskUser. Any help is appreciated. ... View more