Hello,
I am an AdWords and Analytics certified freelancer with experience in working at Google. I provided support in Google AdWords and Analytics to small and medium businesses. You can find my certification in portfolios of my freelancer account.
Currently I am managing display and search campaigns (total of 26 campaigns, 2000+ keywords, 500+ ads) in 13 countries (mostly Asia and Eastern Europe).
I have a very good idea of how to create appropriate filters to remove such referrals, however, I will need to check the account first to be sure.
If you are interested in discussing it further feel free to message me. We can also set up a Skype or Hangout conversation.
I can grantee professional, high quality work and excellent communication on the project.
Best,
Borys