The file kunagi64.exe is a trojan. You can upload to virustotal.com and verify this virus.
Statement from Kunagi Team
kunagi64.exe is nnot a trojan. It does what you expect it to do. It downloads the latest version of Kunagi and starts it.
Trojan software often downloads some malware and starts it. This is very similar. Therefor virustotal.com is buggy, please report the error there.
Issue is closed.