This article has been indexed from SANS Internet Storm Center, InfoCON: green
Over the past month I noticed a resurgence of probe by Digitalocean looking for the Microsoft (MS) Secure Socket Tunneling Protocol (SSTP). This MS proprietary VPN protocol is used to establish a secure connection via the Transport Layer Security (TLS) between a client and a VPN gateway. Additional information on this protocol available here.
Read the original article: Scanning for Microsoft Secure Socket Tunneling Protocol, (Sat, Jul 10th)