Overview of services running on Port 50000 TCP.
~197 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						55862	28.337
ftp	NcFTPd			Unix		47886	24.291
no match						37813	19.181
http	thttpd		Panasonic BB-HCM511 IP camera http config			7233	3.669
http			General User			5484	2.782
http	SonicWALL				firewall	3488	1.769
http	thttpd					2741	1.39
chat	AIM or ICQ server					2576	1.307
telnet	Alcatel/Thomson SpeedTouch DSL router admin interface				broadband router	2316	1.175
telnet	Sony PCS-G50 telnetd				media device	1489	0.755
http	NetEngine Server 1.0					1484	0.753
http-proxy	3Proxy http proxy					1385	0.703
upnp	SuperMicro IPMI UPnP					1206	0.612
telnet	Sony PCS-1 telnetd				media device	902	0.458
http	thttpd		Panasonic BB-HCM511A Network camera http config		webcam	895	0.454
telnet	Linux telnetd			Linux		842	0.427
http	Panasonic BB-HCM331 Network Camera http config				webcam	757	0.384
msdtc	Microsoft Distributed Transaction Coordinator		error	Windows		696	0.353
http	AIM	1.0				661	0.335
http	uTorrent WebUI			Windows		535	0.271
http	Microsoft HTTPAPI httpd	2.0	SSDP/UPnP	Windows		520	0.264
ssh	OpenSSH	4.3	protocol 2.0			518	0.263
http	lighttpd	1.4.19				435	0.221
soap	gSOAP soap	2.7				428	0.217
http	thttpd		Panasonic Network Camera http config			427	0.217
ssl	TLS	1.0				420	0.213
http	Microsoft IIS httpd					418	0.212
http	SAP J2EE Engine httpd	7.00	SAP NetWeaver			405	0.205
http	MiniServ	0.01	Webmin httpd			394	0.2
http	SAP J2EE Engine httpd	7.01	SAP NetWeaver			358	0.182
http	Apache					348	0.177
http	mini_httpd	1.19 19dec2003				298	0.151
http	OpenMG Authentication Server					287	0.146
vnc	VNC		protocol 3.8			286	0.145
http	Boa HTTPd	0.94.14rc21				276	0.14
socks5						258	0.131
http	lighttpd	1.4.29				227	0.115
http	Apache Tomcat/Coyote JSP engine	1.1				227	0.115
http	Netwave IP camera http config				webcam	215	0.109
ssh	OpenSSH	5.3p1 Debian 3ubuntu7	Ubuntu Linux; protocol 2.0	Linux		210	0.107
http	SAP J2EE Engine httpd	7.02	SAP NetWeaver			203	0.103
telnet	Sony PCS-G70 telnetd				media device	184	0.093
http	ZNC IRC bouncer http config	0.097 or later				175	0.089
http	Avtech AVN801 network camera	1.0	UPnP 1.0		webcam	169	0.086
remoting	MS .NET Remoting services					163	0.083
http	Apache		SSL-only mode			156	0.079
irc-proxy	psyBNC	2.3.2-7				151	0.077
http	lighttpd					150	0.076
http	thttpd	2.25b				144	0.073
http	MiniServ	1.590	Webmin httpd			142	0.072
http	Panasonic WV-NS202A webcam http config				webcam	140	0.071
ftp	Microsoft ftpd			Windows		140	0.071
http	Apache	2.2.13	(Unix)			137	0.069
ftp	FileZilla ftpd	0.9.41 beta		Windows		134	0.068
ftp						131	0.066
ssh	OpenSSH	5.5p1 Debian 6+squeeze2	protocol 2.0	Linux		127	0.064
honeywell-ripsd	Honeywell ripsd power management server					125	0.063
http	MiniServ	1.580	Webmin httpd			124	0.063
ssh	OpenSSH	5.3	protocol 2.0			122	0.062
http	DrcomServer1.0					120	0.061
telnet	Sony PCS-TL30 telnetd				media device	114	0.058
http	MMadmServ	MMadmServ	MMadm Server			111	0.056
http	GoAhead-Webs httpd					102	0.052
irc-proxy	psyBNC	2.3.2-9				100	0.051
http	Apache	1.3.6				100	0.051
ssh			protocol 1.5			97	0.049
telnet	Sony PCS-TL50 telnetd				media device	95	0.048
ssh	OpenSSH	5.9p1 Debian 5ubuntu1	Ubuntu Linux; protocol 2.0	Linux		92	0.047
telnet	Sony PCS-11 telnetd				media device	91	0.046
http	GoAhead-Webs					91	0.046
pcanywheredata	Symantec pcAnywhere			Windows		89	0.045
ftp	FileZilla ftpd	0.9.40 beta		Windows		89	0.045
eggdrop	Eggdrop IRC bot console	1.6.20				87	0.044
http	Httpd	1.0				84	0.043
http	WangWnagSimpleServer	1.0				80	0.041
http	Panasonic webcam http config				webcam	78	0.04
ftp	Pure-FTPd					76	0.039
http	thttpd	2.25b 29dec2003				72	0.037
http	Apache	2.2.22	(Unix)			72	0.037
http	D-Link DIR-300 WAP http admin				WAP	71	0.036
irc-proxy	dircproxy					69	0.035
xml						68	0.034
http	micro_httpd					68	0.034
http	Allegro RomPager	4.51 UPnP/1.0	ZyXEL ZyWALL 2			68	0.034
donkey	MLDonkey multi-network P2P server					68	0.034
http	Mbedthis-Appweb	2.0.4				67	0.034
http	GoAhead-Webs embedded httpd					67	0.034
http	Boa HTTPd	0.94.13				65	0.033
backdoor	OptixPro backdoor		**BACKDOOR**	Windows		65	0.033
ssh			protocol 2.0			64	0.032
http	Hikvision-Webs					63	0.032
http	Polycom SoundPoint VoIP phone http config				VoIP phone	62	0.031
http	Muratec Server Ver.1.1					61	0.031
telnet						60	0.03
sybase-adaptive	Sybase Adaptive Server			Windows		60	0.03
http	Apache	2.2.17	(Unix) mod_ssl/2.2.17 OpenSSL/0.9.8g DAV/2 PHP/5.3.5			60	0.03
http	NET-DK	1.0				59	0.03
http	uc-httpd	1.0.0				58	0.029
http	Microsoft IIS httpd	5.1		Windows		58	0.029
http	Boa HTTPd	0.93.15				56	0.028
ssh	OpenSSH	3.9p1	protocol 2.0			55	0.028
http	MikroTik router config httpd			RouterOS	router	55	0.028
http	http server 1.0					55	0.028
vnc	RealVNC Personal		protocol 4.0			54	0.027
ftp	FileZilla ftpd	0.9.37 beta		Windows		54	0.027
http	Apache	2.2.3	(CentOS)			53	0.027
vnc			protocol 3			52	0.026
http	lighttpd	1.4.28				51	0.026
ssh	OpenSSH	5.8p1 Debian 1ubuntu3	Ubuntu Linux; protocol 2.0	Linux		50	0.025
http	WYM httpd	1.0				50	0.025
http	ver2.4 rev0					48	0.024
http	Microsoft HTTPAPI httpd	1.0	SSDP/UPnP	Windows		48	0.024
http	HTTP Server 1.0					48	0.024
vnc	RealVNC Enterprise		protocol 4.1			47	0.024
ssh	OpenSSH	5.1p1 Debian 6ubuntu2	Ubuntu Linux; protocol 2.0	Linux		47	0.024
ftp	ProFTPD	1.3.3		Unix		47	0.024
http	GeoVision GeoHttpServer for webcams				webcam	46	0.023
ftp	FileZilla ftpd	0.9.39 beta		Windows		46	0.023
http	GM Streaming Server httpd				webcam	45	0.023
http	Microsoft IIS httpd	6.0		Windows		44	0.022
http	FLPS					44	0.022
ssh	OpenSSH	5.8p1 Debian 7ubuntu1	Ubuntu Linux; protocol 2.0	Linux		43	0.022
http	DISKPUMP mobile download server	0.9.6 - gyHong				43	0.022
http	Buffalo AirStation http config				WAP	42	0.021
http	PDR-M800	1.0				41	0.021
http	MiniServ	1.570	Webmin httpd			41	0.021
arcserve	ARCserve Discovery					41	0.021
ssh	OpenSSH	5.5p1 Debian 4ubuntu6	Ubuntu Linux; protocol 2.0	Linux		40	0.02
ssh	OpenSSH	5.1p1 Debian 5	protocol 2.0	Linux		40	0.02
irc-proxy	psyBNC	2.3.1				40	0.02
http	SAP J2EE Engine httpd	6.40	SAP NetWeaver			40	0.02
http	SAP J2EE Engine					39	0.02
http	Jetty	6.1.5				39	0.02
http	Cross Web Server					39	0.02
http	TibetSystem Server 2.0					38	0.019
http	MiniServ	1.550	Webmin httpd			38	0.019
bittorrent	Bittorrent P2P client					38	0.019
http	Jetty	6.1.x				36	0.018
http	Apache	2.2.14	(Ubuntu)			35	0.018
upnp	Intel UPnP reference SDK	1.6.6	Mac OS X 10.8.0; UPnP 1.0	Mac OS X		34	0.017
netbios-ssn						34	0.017
http	Router					34	0.017
http	Intoto httpd	1.0				34	0.017
ssh	OpenSSH	5.5p1 Debian 6+squeeze1	protocol 2.0	Linux		32	0.016
ssh	Dropbear sshd	0.52	protocol 2.0	Linux		32	0.016
pyro	Python Remote Object Nameserver					32	0.016
http	Apache	2.2.16	(Debian)			32	0.016
http	TP-LINK Router					31	0.016
napster	WinMX or Lopster Napster P2P client					30	0.015
http	Apache	2.2.14				30	0.015
http	MikroTik router http config				router	29	0.015
upnp	Portable SDK for UPnP devices	1.6.6	Linux 2.6.21.5; UPnP 1.0	Linux		28	0.014
smtp						28	0.014
http			Web Server Authentication			28	0.014
http	Indy httpd	9.0.18	WebRoot SpySweeper http config	Windows		28	0.014
ssh	OpenSSH	6.0	protocol 2.0			27	0.014
http	RemotelyAnywhere remote PC management httpd	8.0.668				27	0.014
ssh	OpenSSH	5.8	protocol 2.0			26	0.013
openvpn	OpenVPN					26	0.013
http	TwistedWeb httpd	8.2.0				26	0.013
http	POSIX					26	0.013
http	Apache	2.2.14	(Unix) mod_ssl/2.2.14 OpenSSL/0.9.8l mod_perl/2.0.4 Perl/v5.10.0			26	0.013
ssh	OpenSSH	4.7p1 Debian 8ubuntu3	protocol 2.0	Linux		25	0.013
http			proxy			25	0.013
http	Apache	2.2				25	0.013
vnc	VNC		protocol 3.6			24	0.012
ssh	OpenSSH	5.1	protocol 2.0			24	0.012
ssh	OpenSSH	4.2	protocol 1.99			24	0.012
ssh	OpenSSH	3.9p1	protocol 1.99			24	0.012
http-proxy	Squid http proxy					24	0.012
http	Draytek Vigor ADSL router webadmin				broadband router	24	0.012
ssh	OpenSSH	5.9	protocol 2.0			23	0.012
http	Transas-NavTech-Server	1.02.0034 Transas-Configuration				23	0.012
http	QNAP TS-219P NAS http config	1.0			storage-misc	23	0.012
ftp	Serv-U ftpd	6.4		Windows		23	0.012
ssh	OpenSSH	5.4p1	FreeBSD 20100308; protocol 2.0	FreeBSD		22	0.011
rifa-dvr	Rifatron DVR				webcam	22	0.011
http	Router Webserver					22	0.011
http	Microsoft IIS			Windows		22	0.011
http	Apache	2.2.15	(CentOS)			22	0.011
http	ADH-Web httpd		Dedicated Micros Digital Sprite 2 DVR http config		media device	22	0.011
directconnect	Direct Connect P2P			Windows		22	0.011
smtp	Postfix smtpd					21	0.011
secure-socket	CA Secure Socket Adapter					21	0.011
http	TRENDnet TV-IP100 or TV-IP110 webcam display httpd				webcam	21	0.011
http	lighttpd	1.4.11				21	0.011
http	httpd 1.1					21	0.011
http	D-Link/Airlink IP webcam http config	1.0			webcam	21	0.011
http	ChipPC Extreme httpd		WinCE 6.00	Windows		21	0.011
http	Apache	2.2.22	(Unix) mod_ssl/2.2.22 OpenSSL/1.0.0h			21	0.011
http	Mobotix Camera http config				webcam	20	0.01
http	MiniServ	1.560	Webmin httpd			20	0.01
http	fec	1.0 (Funkwerk BOSS)				20	0.01