Ivacy VPN has a browser extension for Firefox and Chrome that uses HTTP-Proxy protocol. Also, the Linux OS version uses PPTP/PPP for a VPN solution.

To block the HTTP-Proxy traffic, enable the "HTTP-Proxy" application. To block the PPTP VPN enable "PPTP" application.

This SonicWALL signature identifies legitimate SSL traffic to the admin page for you Ivacy, Inc. account.