Yes I scanned their repository (GravityBits-master.zip) and its clean --- https://www.virustotal.com/en/file/54b9889f04fa6fe7b6731d5f7d7075f7eaffab91cbdba36876e78bf46648c7fd/analysis/1453960314/

What everyone was panicking about Gspawn-win32-helper-console.exe is that, /]it is a type of EXE file associated with Third-Party Software developed by The Gimp Team for the Windows Operating System.

But the mega link for downloading windows wallet is not working. Please upload it on Google Drive or any other better uploader.

And what is the minimum weight needed to start staking this coin?