Unknown tables found in my sql database

Hi Experts,

I Realized some tables that were recently created in my database, they all have the same date and time created, wonder if that is the results of a software I was trying to experiment (don't remember doing it that time but a possibility..) or is this the work of a virus or worse (perhaps a hacker..)?

Listing below some of them

dbo.APPLICATION_SETTINGS
dbo.COMPARISON_OPERATORS
dbo.EVENT_COLUMN_SUPPORTED_OPERATORS
dbo.EVENT_COLUMNS
dbo.LOGICAL_OPERATORS
dbo.PROFILER
dbo.PROFILER_EVENT_CATEGORIES
dbo.PROFILER_EVENT_DEFINITION_COLUMNS
dbo.PROFILER_EVENT_DEFINITION_FILTER_ITEMS
dbo.PROFILER_EVENT_DEFINITION_FILTERS
dbo.PROFILER_EVENT_DEFINITION_SQL_EVENTS
dbo.PROFILER_EVENT_DEFINITION_SUPPORTED_OBJECT_TYPES
dbo.PROFILER_EVENT_DEFINITIONS
dbo.SCHEDULE_INTERVALS
dbo.V_EVENT_DEFINITIONS