Back in December we received a response from Symantec, see below. They said they removed the detection but it could be that it is back again. We will check that out. Thank you for letting us know.
In relation to submission 12613.
Upon further analysis and investigation we have verified your submission and, as such, the detection(s) for the following file(s) will be removed from our products:
File name: agent.exe MD5: 6e8f173ac4686a122b2a599821f63d8d SHA256: e41f8f603ef2292f8f9b18c40ae167243f4180fa835bbf67c3d533348d2e7e32 Note: Whitelisting may take up to 24 hours to take effect via Live Update
By zip file you mean this one, the main "package" on the download page, correct? This is in fact just Viewer and Host zipped in a single file for convenience. You can as well download them separately below on the page.
Anyway, we'll take a look and contact Symantec regarding this issue.