This is a false positive.
vorpX “injects” other programs which some av programs may classify as malicious behaviour without really being sure about it.
You should report this as a false positive to your av vendor so they can fix the issue.
In the meantime please exclude the vorpX program folder from scanning.
I general I would highly recommend to use Windows Defender (respectively Security Essentials on Win7), which finds a good balance between protection and invasiveness.