Overview of services running on Port 100 TCP.
~89 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	lighttpd	18026	20.035
http	Mbedthis-Appweb	15238	16.936
http		12858	14.291
no match	-/-	5049	5.612
http	Apache	3660	4.068
http	SonicWALL	3622	4.026
http	Microsoft IIS httpd	2411	2.68
chat	AIM or ICQ server	2200	2.445
http	Netwave IP camera http config	1758	1.954
http	Boa HTTPd	1687	1.875
http	Avtech AVN801 network camera	1423	1.582
ssh	OpenSSH	1412	1.569
http	Realtron WebServer 1.1	1384	1.538
http	thttpd	1258	1.398
ssl	SSLv3	1171	1.302
http	Cross Web Server	1109	1.233
http	mini_httpd	1040	1.156
http	WebServer	979	1.088
http	Microsoft HTTPAPI httpd	873	0.97
http	AIM	608	0.676
http	GoAhead-Webs httpd	574	0.638
http	uc-httpd	550	0.611
arcserve	ARCserve Discovery	462	0.513
http	Hikvision-Webs	419	0.466
http	D-Link DIR-300 WAP http admin	407	0.452
http	GeoVision GeoHttpServer for webcams	380	0.422
http	DVR Systems webcam http interface	339	0.377
http	OwnServer1.0	290	0.322
http	Gadspot/Avtech AV787 webcam http config	269	0.299
ice	Internet Communications Engine	254	0.282
http	Allegro RomPager	238	0.265
http	PDR-M800	228	0.253
telnet		227	0.252
http	LevelOne FBR-FBR-1418TX router http config	225	0.25
telnet	Columbia	220	0.245
telnet	IP DSLAM	210	0.233
http	nginx	195	0.217
http	Apache Tomcat/Coyote JSP engine	186	0.207
socks5		154	0.171
http	WindWeb	148	0.164
ftp	Microsoft ftpd	141	0.157
vnc	VNC	134	0.149
ssh		115	0.128
ftp		115	0.128
ssh	Dropbear sshd	110	0.122
http	TibetSystem Server 2.0	106	0.118
ssh	MikroTik RouterOS sshd	95	0.106
http	MiniServ	88	0.098
http	Draytek Vigor ADSL router webadmin	87	0.097
http-proxy	Squid http proxy	86	0.096
http	WYM httpd	85	0.094
http	GoAhead-Webs embedded httpd	84	0.093
telnet	QuickTel IP-DSLAM (QPIZZA4100)	80	0.089
rtsp	Avtech MPEG4 DVR control rtspd	76	0.084
http	wg_httpd	76	0.084
http	WebFS httpd	75	0.083
ftp	Serv-U ftpd	73	0.081
http	TwistedWeb httpd	70	0.078
http	Httpd	66	0.073
http	Jetty	65	0.072
directconnect	Direct Connect P2P	65	0.072
http	Sagem F@st router httpd	64	0.071
http	SonicWALL firewall http config	62	0.069
http	MikroTik router http config	62	0.069
http	dcs-lig-httpd	58	0.064
printer	Panasonic mfpscdl.exe service	56	0.062
http	Everfocus webcam http config	55	0.061
http	TRENDnet TV-IP100 or TV-IP110 webcam display httpd	53	0.059
http	MWS	53	0.059
http	httpd	53	0.059
ftp	FileZilla ftpd	51	0.057
http	http server 1.0	50	0.056
http	ImagiaTek	45	0.05
http	Indy	42	0.047
http	Airlink 101 or TRENDnet TVIP-422w webcam http config	42	0.047
spy-net	Spy-Net or CyberGate backdoor	41	0.046
http	GoAhead-Webs	38	0.042
telnet	MDSLAM-48	37	0.041
http	QNAP TS-219P NAS http config	37	0.041
http	MikroTik router config httpd	37	0.041
http	uTorrent WebUI	34	0.038
http	Microsoft ISA httpd	34	0.038
http	Xunlei BitTorrent http interface	33	0.037
http	TRENDnet TV-IP110w or TV-IP422W webcam display httpd	33	0.037
http	Techno Vision Security System http config	33	0.037
ftp	ProFTPD	33	0.037
ftp	vsftpd	32	0.036
http	Microsoft Windows Media Server	29	0.032
http	Dreambox httpd	29	0.032
http	W3MFC	28	0.031
http	D-Link Internet Camera	28	0.031
http	DD-WRT milli_httpd	27	0.03
mysql	MySQL	26	0.029
http	Milestone XProtect video surveillance http interface	26	0.029
http	ADH-Web httpd	26	0.029
http	World Client WDaemon httpd	25	0.028
http	D-Link/Airlink IP webcam http config	25	0.028
vnc	RealVNC Personal	24	0.027
http	Router	24	0.027
http	httpd 1.1	24	0.027
http	MS-SDK-HttpServer	23	0.026
http	Lantronix XPort embedded ethernet http config	23	0.026
smtp		22	0.024
http	Vivotek Network Camera	22	0.024
http	TP-LINK Router	22	0.024
http	Dbox2 Neutrino httpd	22	0.024
http	WebLogic httpd	21	0.023
vnc		20	0.022
http	RemotelyAnywhere remote PC management httpd	20	0.022
http	HTTP Software 1.1	20	0.022
http	American Dynamics EDVR security recorder	20	0.022
smtp	Microsoft ESMTP	19	0.021
http	Router Webserver	19	0.021
http	Panasonic webcam http config	19	0.021
http	dvr1614n web-cam httpd	19	0.021
http	BlueIris	19	0.021
smtp	Exim smtpd	18	0.02
http	XWeb 1.0	18	0.02
http	TP-LINK WR741N WAP http config	18	0.02
http	SkiftaServer	18	0.02
http	Serverdoc remote httpd	18	0.02
http	Bosch Divar Security Systems http config	18	0.02
ftp	Pure-FTPd	18	0.02
xml		17	0.019
http	Webs	17	0.019
http	Netgear DG834G router http config	17	0.019
http	D-Link DCS-920 webcam http config	17	0.019
http	BlueIris-HTTP	17	0.019
telnet	SMC SMC2870W Wireless Ethernet Bridge	16	0.018
telnet	Linux telnetd	16	0.018
smtp	Microsoft Exchange smtpd	16	0.018
http	Kerio MailServer http config	16	0.018
http	HTTPsrv	16	0.018
upnp	Conexant-EmWeb	15	0.017
http	WebServer(IPCamera_Logo)	15	0.017
http	Intoto httpd	15	0.017
http	HttpFileServer httpd	15	0.017
http	FlexWATCH-Webs	15	0.017
telnet	BladeCenter or TANDBERG Codec telnetd	14	0.016
openvpn	OpenVPN	14	0.016
http	Virata-EmWeb	14	0.016
http	siyou server	14	0.016
http	Satel ETHM-1 alarm control unit	14	0.016
http	Panasonic DVR slinger http config	14	0.016
http	NetBox httpd	14	0.016
http	HomeSeer Home Control Web Interface	14	0.016
http	CherryPy httpd	14	0.016
http	Buffalo AirStation http config	14	0.016
http	avtech httpd	14	0.016
ftp	MikroTik router ftpd	14	0.016
ftp	Dreambox ftpd	14	0.016
http-proxy	F5 BIG-IP load balancer http proxy	13	0.014
http-proxy	CCProxy http proxy	13	0.014
http	Microsoft IIS	13	0.014
http	iCanWebServer	13	0.014
http	go1984 httpd	13	0.014
http	Crestron PRO2 automation system web server	13	0.014
http	Boa httpd	13	0.014
vnc	RealVNC Enterprise	12	0.013
vnc-http	RealVNC	12	0.013
telnet	Microsoft Windows XP telnetd	12	0.013
http	Rhinosoft Serv-U httpd	12	0.013
http	HTTPServer	12	0.013
http	AquaController 4.0	12	0.013
telnet	Netopia ADSL router telnetd	11	0.012
telnet	Cisco 1721 router telnetd	11	0.012
http	WEB SERVER	11	0.012
http	Siemens Gigaset A580 or S450 VoIP phone http config	11	0.012
http	RapidLogic httpd	11	0.012
http	Panasonic BB-HCM331 Network Camera http config	11	0.012
http	NewCS satellite card sharing system http config	11	0.012
http	HyNetOS	11	0.012
http	HeiTel GmbH Web Server	11	0.012
http	Gnway Web Server	11	0.012
http	DVSS Herculese DVR http config	11	0.012
http	D-Link DCS-910 webcam http config	11	0.012
http	D-Link DCS-900 webcam http config	11	0.012
http	CCcam card sharing system http config	11	0.012
http	AverMedia WebCamX httpd	11	0.012
http	AIM HTTP	11	0.012
http	webcamXP httpd	10	0.011
http	Ubicom httpd	10	0.011
http	TeleEye	10	0.011
http	TeamViewer httpd	10	0.011
http	QNAP TS-219, TS-239, or TS-509 NAS http config	10	0.011
http	Mobotix Camera http config	10	0.011
http	Ipswitch WhatsUp Professional httpd	10	0.011
http	GoldStar iPECS 50B PBX http config	10	0.011
ftp	Synology DiskStation NAS ftpd	10	0.011