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Tag: account duration

Time between Account Creation and Account Deletion

  • WinEventLog:Security
  • SplunkNinja
  • 0 0

Below is the query indicating time (duration) between account creation and account deletion. I have added a range to indicate severity, remove and modify as needed. Windows 2008 and newer:

1
sourcetype=WinEventLog:Security (EventCode=4726 OR EventCode=4720) |eval Date=strftime(_time, "%Y/%m/%d") |rex "Subject:\s+\w+\s\S+\s+\S+\s+\w+\s\w+:\s+(?<SourceAccount>\S+)" | rex "Target\s\w+:\s+\w+\s\w+:\s+\S+\s+\w+\s\w+:\s+(?<DeletedAccount>\S+)" | rex "New\s\w+:\s+\w+\s\w+:\s+\S+\s+\w+\s\w+:\s+(?<NewAccount>\S+)" | eval SuspectAccount=coalesce(DeletedAccount,NewAccount) | transaction SuspectAccount startswith="EventCode=4720" endswith="EventCode=4726" |eval duration=round(duration/60, 2) | eval Age=case(duration<=240, "Critical", duration>240 AND duration<=1440, "Warning", duration>1440, "Normal")| table Date, index, host, SourceAccount, SuspectAccount, duration, Age | rename duration as "Minutes Account was Active" |rename index as "SSP or Index" | sort + "Minutes Account was Active"

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