Overview of services running on Port 900 TCP.
~36 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	Count	Percent
http		9583	26.135
http	Check Point VPN-1/UTM NGX R70 firewall http admin	5031	13.721
http	Check Point Firewall-1 Client Authentication httpd	4156	11.334
no match	-/-	3947	10.764
http	SonicWALL	3529	9.624
chat	AIM or ICQ server	1601	4.366
http	Apache	1084	2.956
netsaint	Netsaint status daemon	868	2.367
http	awweb	815	2.223
http	lighttpd	725	1.977
http	Microsoft IIS httpd	718	1.958
http	AIM	669	1.825
http	Httpd	373	1.017
ssh	OpenSSH	211	0.575
vnc	VNC	196	0.535
http	Avtech AVN801 network camera	167	0.455
http	thttpd	157	0.428
http	Netwave IP camera http config	149	0.406
http	kProxyService	130	0.355
http	DrcomServer1.0	116	0.316
http	Apache Tomcat/Coyote JSP engine	106	0.289
ssh		90	0.245
http	Boa HTTPd	85	0.232
http	GoAhead-Webs	72	0.196
http	mini_httpd	66	0.18
smtp	Exim smtpd	60	0.164
http	Hikvision-Webs	58	0.158
http	Checkpoint firewall client authentication httpd	56	0.153
http	nginx	55	0.15
http	PDR-M800	54	0.147
ftp	Microsoft ftpd	51	0.139
http	uc-httpd	45	0.123
telnet		44	0.12
http	GoAhead-Webs embedded httpd	43	0.117
http-proxy	Squid http proxy	38	0.104
http	D-Link DIR-300 WAP http admin	37	0.101
vnc		35	0.095
http	Microsoft HTTPAPI httpd	34	0.093
http	RemotelyAnywhere remote PC management httpd	30	0.082
http	DVR Systems webcam http interface	30	0.082
http	Cross Web Server	30	0.082
http	addUPI Server 1.2	30	0.082
directconnect	Direct Connect P2P	29	0.079
http	MikroTik router config httpd	28	0.076
http	Mbedthis-Appweb	28	0.076
http	Gadspot/Avtech AV787 webcam http config	25	0.068
ftp	FileZilla ftpd	25	0.068
http	GeoVision GeoHttpServer for webcams	24	0.065
http	MiniServ	23	0.063
smtp	Microsoft ESMTP	22	0.06
mysql	MySQL	22	0.06
http	Allegro RomPager	18	0.049
ftp		18	0.049
ftp	ProFTPD	17	0.046
http	WYM httpd	16	0.044
smtp		15	0.041
rsync		15	0.041
http	QNAP TS-219P NAS http config	15	0.041
http	GoAhead-Webs httpd	15	0.041
http-proxy	F5 BIG-IP load balancer http proxy	13	0.035
http	AV-TECH AV787 Video Web Server	13	0.035
ftp	vsftpd	13	0.035
ftp	Serv-U ftpd	13	0.035
http	uTorrent WebUI	12	0.033
http	MikroTik router http config	12	0.033
http	HTTPD 1.0	12	0.033
vnc	RealVNC Personal	11	0.03
ssl	TLS	11	0.03
smtp	Postfix smtpd	11	0.03
rtsp	Avtech MPEG4 DVR control rtspd	11	0.03
http	Mobotix Camera http config	11	0.03
http	D-Link/Airlink IP webcam http config	11	0.03
ftp	vsftpd (before 2.0.8) or WU-FTPD	11	0.03
ftp	Pure-FTPd	11	0.03
ssh	Dropbear sshd	10	0.027
smtp	Microsoft Exchange smtpd	10	0.027
http	Tridium Niagara httpd	10	0.027
http	Jetty	10	0.027