Overview of services running on Port 7938 TCP.
~18 Thousand IP addresses observed from May to December 2012
To get raw lists of the data go to Download. For an explanation of what this data is and how it was obtained, see Paper.

Servicename	Product	Version	Count	Percent
irc	Dancer ircd		4041	21.456
http	SonicWALL		3542	18.806
http			3300	17.522
chat	AIM or ICQ server		2127	11.293
no match	-/-	-/-	1164	6.18
ssl	SSLv3		818	4.343
http	AIM	1.0	572	3.037
http	lighttpd	1.4.19	419	2.225
http	lighttpd	1.4.29	407	2.161
http	Microsoft IIS httpd	6.0	122	0.648
ssh			98	0.52
http	GoAhead-Webs httpd		94	0.499
http	Microsoft HTTPAPI httpd	2.0	83	0.441
http	Apache Tomcat/Coyote JSP engine	1.1	83	0.441
http	Netwave IP camera http config		72	0.382
http	Microsoft IIS httpd		67	0.356
http	thttpd	2.24	57	0.303
telnet			55	0.292
http	Avtech AVN801 network camera	1.0	52	0.276
http	Apache		52	0.276
http	PDR-M800	1.0	42	0.223
vnc	VNC		37	0.196
http	Apache	2.2.3	37	0.196
http	Apache	2.2.14	33	0.175
http	mini_httpd	1.19 19dec2003	32	0.17
http	Boa HTTPd	0.94.14rc21	30	0.159
http	GoAhead-Webs		29	0.154
http	Jetty	6.1.25	28	0.149
http-proxy	Squid http proxy	2.7.STABLE9	26	0.138
http-proxy	Squid http proxy		25	0.133
http	Apache	2.2.22	24	0.127
ftp	Microsoft ftpd		24	0.127
http	Hikvision-Webs		23	0.122
http	thttpd		22	0.117
http	Apache	2.2.16	22	0.117
http	thttpd	2.24 26oct2003	21	0.112
http	thttpd	2.25b	17	0.09
http	Microsoft IIS httpd	5.1	17	0.09
http	Mbedthis-Appweb	2.0.4	17	0.09
http-proxy	Squid http proxy	2.6.STABLE12	16	0.085
http	uTorrent WebUI		15	0.08
http	uc-httpd	1.0.0	15	0.08