Well I disagree as this could be malvertising ad-injecting, that IP is blacklisted and flagged for “Welcome ! Site googleleadservices dot cn just created. Real content coming”.
I would advise you have your system checked as described here: https://forum.avast.com/index.php?topic=53253.0

Wait for a qualified removal expert to give you the clean bill or remove that persistent adware.

polonus