This is my first question, I hope to do it right!

I'm creating a custom report in G.A. because I have implemented the typical custom variable to track logged/anonymous users. To do it I choose the "unique table" type, 2 dimensions values (custom variable key and value) and visits metrics scope.

When I generate the report, some strange, unknown variables appears! There is my custom variable: user kind with its 2 possible values, and some unexpected others like:

• Cuevana Plugin
• UnderHen Plugin
• Z Plugin
• CL

and so on...

I don't know from where they come (Cuevana plugin had viruses isn't it?) but I know I don't want to see them. Does it exists any way to delete or filter them? Thank you