As monocolor previously posted, what you saw is probably due to the problem that the longer the executable stays, the more problems totalvirus detects. Some other coins reported the same issue.
https://bitcointalk.org/index.php?topic=1691086.msg18330527#msg18330527

I just did a compilation, and run the totalvirus check, it shows this:
https://www.virustotal.com/en/file/c2961dce61cd46d83aa14ca80bab42ba2de8371d958ca4810691d56c114a0425/analysis/

https://s22.postimg.org/bujorj541/Capture.png

it has 3 reported bitcoin-miner (which is normal, as we included miner in the client), and one "heuristic" which usually does not mean anything. If you don't feel comfortable using the pre-compiled clients, please compile yourself from the source, you can inspect the source at github.