Oh, I'm sure that TrojWare.Win32.Kryptik.BHBD is not safe at all, but cgafeng's zip does not contain that trojan. It's a false positive, which is very common in AV software. Note that of the 57 AVs which scanned the binaries, only one yielded a result. However, if you're unsure, you can replace the file which triggered the false positive, \bts_light_wallet_win1.0beta\bts_light_wallet_win\Qt\labs\settings\qmlsettingsplugind.dll, with one from an official Qt download.