VPN Traffic Detection in SSL-Protected Channel

Table 2

Forensic analysis of freely available VPN services.

VPN services	Classifiers for forensic analysis
	IP	Host name	Nonstandard HTTPS	DNS activity
TOR browser	✓	✕	✓	✓
Hotspot Shield free	✕	✓	✓	✓
Browsec VPN	✕	✓	✕	✕
ZenMate VPN	✕	✓	✕	✕
Hoxx VPN	✕	✓	✕	✕