proXPN is one of the famous VPN client based on OpenVPN Service, today hacked by hacked named “TurkisH-RuleZ”. The Server is seems to be Compromised in this Hacking case. Compromise URL is http://proxpn.com/whmcs1/downloads and Mirror of Hack is available here. Proxpn is based on the OpenVPN service, which is free to download and use only a single copy of the software.
Source: https://thehackernews.com/2011/10/famous-vpn-service-proxpn-compromised.html