How to generate a digital signature for Labview EXE?

[SQUARELAB]

I have created an executable and when It runs on PC it is deleted by antivirus ( Symantec ) showing the ws.reputation.1 problem in its report. After exploring I found my executable file does not contain a digital signature. Further exploring I found the digital signature can be added from the security option in application builder (screenshot attached). Can someone please tell me how I can create a digital signature which I should browse from the security option. I did find some articles but couldn't understand the process. 

[PsyenceFact]

Have a look at the Digital Signing section on this page:User Account Control, Digital Signing, and Manifests in LabVIEW Built Applications

In short, you need to buy a signing certificate from one of the many approved certificate authorities.  There's some useful information on this GitHub discussion page.  As far as I can tell, you only need to sign setup.exe in the installer build within LabVIEW.