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	Version	Info	OS	Devicetype	Count	Percent
http	lighttpd	1.4.28				16216	18.023
http	Mbedthis-Appweb	2.0.4				15221	16.917
http						12575	13.977
no match						5049	5.612
http	SonicWALL				firewall	3621	4.025
chat	AIM or ICQ server					2200	2.445
http	Netwave IP camera http config				webcam	1758	1.954
http	Avtech AVN801 network camera	1.0	UPnP 1.0		webcam	1423	1.582
http	Realtron WebServer 1.1		index.htm			1383	1.537
ssl	SSLv3					1171	1.302
http	Microsoft IIS httpd	6.0		Windows		1126	1.252
http	Cross Web Server					1109	1.233
ssh	OpenSSH	4.3	protocol 2.0			1072	1.191
http	mini_httpd	1.19 19dec2003				1040	1.156
http	WebServer					978	1.087
http	Microsoft IIS httpd					892	0.991
http	Microsoft HTTPAPI httpd	2.0	SSDP/UPnP	Windows		866	0.963
http	Boa HTTPd	0.94.13				857	0.953
http	Boa HTTPd	0.94.14rc21				679	0.755
http	AIM	1.0				608	0.676
http	uc-httpd	1.0.0				550	0.611
http	Apache	2.2.8	PHP/5.2.4-2ubuntu5.19 with Suhosin-Patch			542	0.602
http	GoAhead-Webs httpd					520	0.578
http	thttpd	2.25b				491	0.546
arcserve	ARCserve Discovery					462	0.513
http	lighttpd	1.4.30				455	0.506
http	lighttpd	1.4.29				438	0.487
http	Hikvision-Webs					419	0.466
http	D-Link DIR-300 WAP http admin				WAP	407	0.452
http	lighttpd	1.4.19				402	0.447
http	GeoVision GeoHttpServer for webcams				webcam	380	0.422
http	DVR Systems webcam http interface				webcam	339	0.377
http	OwnServer1.0					290	0.322
http	Gadspot/Avtech AV787 webcam http config				webcam	269	0.299
http	lighttpd	1.4.26				257	0.286
ice	Internet Communications Engine					254	0.282
http	Apache					243	0.27
http	Apache	2.2.9	mod_python/3.3.1 Python/2.5.2			234	0.26
http	Apache	2.2.9	(Debian) mod_python/3.3.1 Python/2.5.2			230	0.256
http	PDR-M800	1.0				228	0.253
telnet						225	0.25
http	LevelOne FBR-FBR-1418TX router http config				router	225	0.25
telnet	Columbia					220	0.245
http	Apache	1.3.33				213	0.237
telnet	IP DSLAM					210	0.233
http	Apache	1.3.33	(Debian GNU/Linux) mod_gzip/1.3.26.1a mod_python/2.7.10 Python/2.3.4			205	0.228
http	lighttpd					185	0.206
http	Apache Tomcat/Coyote JSP engine	1.1				182	0.202
http	Apache	2.2.8	(Ubuntu) PHP/5.2.4-2ubuntu5.19 with Suhosin-Patch			172	0.191
http	thttpd		Panasonic BB-HCM511 IP camera http config			164	0.182
socks5			GSSAPI authentication required			151	0.168
http	thttpd	2.25b 29dec2003				148	0.164
http	thttpd					146	0.162
http	WindWeb	2.0				143	0.159
http	nginx					142	0.158
ftp	Microsoft ftpd			Windows		139	0.154
http	Microsoft IIS httpd	7.5		Windows		125	0.139
http	Allegro RomPager	4.51 UPnP/1.0	ZyXEL ZyWALL 2			124	0.138
http			General User			118	0.131
ftp						115	0.128
http	Apache	1.3.41				114	0.127
vnc	VNC		protocol 3.8			108	0.12
http	TibetSystem Server 2.0					106	0.118
http	thttpd	2.24				103	0.114
http	Apache	2.2.8	PHP/5.2.4-2ubuntu5 with Suhosin-Patch			99	0.11
ssh			protocol 1.5			96	0.107
ssh	MikroTik RouterOS sshd		protocol 2.0	Linux	router	95	0.106
http	Microsoft IIS httpd	5.1		Windows		92	0.102
http	Boa HTTPd	0.93.15				92	0.102
http	Draytek Vigor ADSL router webadmin				broadband router	87	0.097
http	Microsoft IIS httpd	5.0		Windows		86	0.096
http	GoAhead-Webs embedded httpd					84	0.093
telnet	QuickTel IP-DSLAM (QPIZZA4100)					80	0.089
ssh	Dropbear sshd	0.51	protocol 2.0	Linux		77	0.086
rtsp	Avtech MPEG4 DVR control rtspd					76	0.084
http	wg_httpd	1.0(based Boa				76	0.084
http	WebFS httpd	1.21				75	0.083
http	Microsoft IIS httpd	7.0		Windows		72	0.08
http	TwistedWeb httpd	8.2.0				68	0.076
http	Apache	2.2.22	(Unix) PHP/5.3.10			68	0.076
http	Httpd	1.0				66	0.073
directconnect	Direct Connect P2P			Windows		65	0.072
http	Sagem F@st router httpd				router	64	0.071
http	SonicWALL firewall http config				firewall	62	0.069
http	MikroTik router http config				router	62	0.069
http	dcs-lig-httpd					58	0.064
http	Apache	2.2.3	(CentOS)			58	0.064
printer	Panasonic mfpscdl.exe service					56	0.062
http	Everfocus webcam http config				webcam	55	0.061
http	Allegro RomPager	4.07 UPnP/1.0	ZyXEL ZyWALL 2			54	0.06
http	TRENDnet TV-IP100 or TV-IP110 webcam display httpd				webcam	53	0.059
http	MWS	1.2.0				53	0.059
ftp	Serv-U ftpd	6.4		Windows		52	0.058
http	MiniServ	0.01	Webmin httpd			51	0.057
http	httpd					51	0.057
http	Apache	1.3.27				51	0.057
http	http server 1.0					50	0.056
http	Apache		SSL-only mode			46	0.051
http	Apache	2.2.14	(Ubuntu)			43	0.048
http	Airlink 101 or TRENDnet TVIP-422w webcam http config				webcam	42	0.047
spy-net	Spy-Net or CyberGate backdoor		**BACKDOOR**			41	0.046
http-proxy	Squid http proxy	2.6.STABLE12				39	0.043
http	Apache	2.2.8	(Ubuntu) PHP/5.2.4-2ubuntu5 with Suhosin-Patch			38	0.042
telnet	MDSLAM-48					37	0.041
http	QNAP TS-219P NAS http config	1.0			storage-misc	37	0.041
http	MikroTik router config httpd			RouterOS	router	37	0.041
http	Apache	2.2.16	(Debian)			37	0.041
http	WYM httpd	1.0	IP-Video embedded camera http config		webcam	36	0.04
http	GoAhead-Webs httpd		LogiLink WC0002B webcam http config			36	0.04
http	Apache	1.3.41	(Unix)			36	0.04
http	WYM httpd	1.0				34	0.038
http	uTorrent WebUI			Windows		34	0.038
http	Microsoft ISA httpd			Windows		34	0.038
http	Xunlei BitTorrent http interface	1.0				33	0.037
http	TRENDnet TV-IP110w or TV-IP422W webcam display httpd				webcam	33	0.037
http	Techno Vision Security System http config	2.0			webcam	33	0.037
http	Apache	1.3.27	(Unix) Debian GNU/Linux mod_gzip/1.3.26.1a mod_python/2.7.8 Python/2.2.2			33	0.037
http	GoAhead-Webs					32	0.036
http	Apache	2.2.9	(Debian) PHP/5.2.6-1+lenny16 with Suhosin-Patch			32	0.036
http	Dreambox httpd				media device	29	0.032
http	Apache	2.2.16				29	0.032
http	Allegro RomPager	4.03				29	0.032
http	thttpd	2.24 26oct2003				28	0.031
http	lighttpd	1.4.20				28	0.031
http	Jetty	6.1.x				28	0.031
http	Boa HTTPd	0.94.14rc18-ipcam				28	0.031
http	Apache	2.2.22	(Unix)			28	0.031
http	thttpd		Panasonic BB-HCM511A Network camera http config		webcam	27	0.03
ssh	OpenSSH	5.3p1 Debian 3ubuntu7	Ubuntu Linux; protocol 2.0	Linux		26	0.029
ssh	OpenSSH	3.9p1	protocol 1.99			26	0.029
http-proxy	Squid http proxy	2.7.STABLE9				26	0.029
http	Apache	2.2.22	(Unix) mod_ssl/2.2.22 OpenSSL/1.0.0h PHP/5.3.10			26	0.029
http	ADH-Web httpd		Dedicated Micros Digital Sprite 2 DVR http config		media device	26	0.029
ftp	vsftpd	2.0.8 or later				26	0.029
http	D-Link/Airlink IP webcam http config	1.0			webcam	25	0.028
vnc	RealVNC Personal		protocol 4.0			24	0.027
http	W3MFC	1.68				24	0.027
http			SkyIPCam			24	0.027
http	httpd 1.1					24	0.027
http	MS-SDK-HttpServer	1.0				23	0.026
http	Lantronix XPort embedded ethernet http config					23	0.026
http	Apache	2.2.8	(Win32) PHP/5.2.6			23	0.026
ssh	OpenSSH	5.3	protocol 2.0			22	0.024
smtp						22	0.024
http	MiniServ	1.580	Webmin httpd			22	0.024
http	Microsoft Windows Media Server	9.01.01.5001		Windows		22	0.024
http	Dbox2 Neutrino httpd				media device	22	0.024
ssh	OpenSSH	5.2	protocol 2.0			21	0.023
ssh	OpenSSH	5.1p1 Debian 5	protocol 2.0	Linux		21	0.023
vnc			protocol 3			20	0.022
http	WebLogic httpd					20	0.022
http	thttpd	2.23beta1				20	0.022
http	thttpd	2.19-MX Jul 1 2010			WAP	20	0.022
http	ImagiaTek		Ipcam manager			20	0.022
http	Apache	2.2.14	(Unix) mod_ssl/2.2.14 OpenSSL/0.9.8l mod_perl/2.0.4 Perl/v5.10.0			20	0.022
http	American Dynamics EDVR security recorder				security-misc	20	0.022
ftp	FileZilla ftpd	0.9.40 beta		Windows		20	0.022