Since the release of the report I bet all vendors can block the known samples from the Grizzly campaign. The problem is the unknown 0-day malware that we have not seen. It is highly unlikely that the samples listed in the report was ever reused.
To block the new threats you need SEP 14 and the new machine learning capabilites.
Symantec ATP:Endpoint would most likely also detect and flag these files as "targeted" attacks.
https://www.symantec.com/content/dam/symantec/docs/data-sheets/atp-endpoint-en.pdf