I don't know how to get it into workflow (we don't use workflow), but here's a SQL query to tell what filters it belongs to:
select vCollection.Name, CollectionMembership.CollectionGuid from CollectionMembership
join vCollection on Guid = CollectionMembership.CollectionGuid
where ResourceGuid = '3F5F93A8-B8AC-42B6-A805-030393FACD21'
The ResourceGuid is the Guid of the machine in question.