Not-a-virus:NetTool.Win32.ProxySwitcher.a is riskware. That means it's up to the user whether to use it or not.

A riskware program, in and by itself, is not harmful, but contains features which could benefit attackers to cause harm to users.

People can put too much faith in online checkers like VirusTotal, especially those people who do not know how to interpret the findings properly.

many thanks for the fine share bro

Thanks