The wallet was compiled by the same person whol compiled all previous wallets.
I'm using this same build myself.
This is probably a false positive.
But you can always build a wallet from sources or ask someone to do it for you.
Or perhaps the binary should be properly signed, as other binares are. And available from the official web site. And not from some file sharing service.
BTW, the wallet does not scyhronize with the network for hours. For some reason, the blockchain got corrupted (or the index got corrupted), now, everything is fine, but damn thing does not sync in a reasonable time.