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Editor's note: This article was originally published in Windows Scripting Solutions. Thanks to Jim Turner for also making it available to Security Pro VIP readers.
Have you ever started a script that you thought would be a piece of cake to write only to find it a hard nut to crack? When I started writing the Event Log Query Utility, I simply wanted to pull from computer event logs a list of errors and warnings occurring within a given number of days, insert those events in a Microsoft Excel spreadsheet, and send the spreadsheet to management.
Sounds pretty simple, right? Just create a list of computer names in a text file, read that file into an array, and using the Windows Management Instrumentation (WMI) Win32_NT LogEvent class, query each computer in the array for errors and warnings. Creating the script was pretty simple, and the automated event-log query tool sure beat the manual method I'd been using. Then, management realized it also needed a list of Audit Failure events from the Security log. "No problem," I thought. "I'll just add another OR condition to my query to include Audit Failure types." . . .
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