To Import a Correlation Rule:
Open the Correlation Rules window and click Import/Export Correlation Rule icon.
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The Import Export Rule window will display.
Select the Import option from the Action pane. The Description in the Description pane changes to Import.
Click Browse to select the Correlation Rule you want to import. Select the file and click Import. Click Next. The Import Rule window will display.
Select the folder you want to import the Correlation rule into. Click Finish.
NOTE: While importing a correlation rule in a folder, if the correlation rule with the same name exists, the system will prompt and will not import the file.