Overview of services running on Port 6666 TCP.
~116 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
socks5			No authentication; connection failed			43643	37.564
no match						19125	16.461
socks-proxy	Socks4A					7727	6.651
irc	Unreal ircd					5357	4.611
irc	Dancer ircd					4142	3.565
http						3729	3.21
melange	Melange Chat Server	1.10				2724	2.345
chat	AIM or ICQ server					2569	2.211
telnet	Cisco telnetd			IOS	router	2058	1.771
http	Microsoft IIS httpd					1897	1.633
irc	InspIRCd					1095	0.942
ssh	OpenSSH	4.3	protocol 2.0			888	0.764
telnet						787	0.677
http	Microsoft HTTPAPI httpd	2.0	SSDP/UPnP	Windows		757	0.652
vnc	VNC		protocol 3.8			728	0.627
irc	ircu ircd					527	0.454
http	Apache Tomcat/Coyote JSP engine	1.1				481	0.414
http-proxy	Squid http proxy	2.7.STABLE9				457	0.393
http	GoAhead-Webs httpd					450	0.387
http	lighttpd	1.4.19				438	0.377
ssh	OpenSSH	5.3	protocol 2.0			404	0.348
ssh	OpenSSH	5.5p1 Debian 6+squeeze2	protocol 2.0	Linux		394	0.339
irc						379	0.326
http	Virata-EmWeb	6.0.1				378	0.325
http-proxy	Squid http proxy	3.1.19				357	0.307
vnc	VNC		protocol 3.6			351	0.302
ca-mq	CA Message Queuing Server					349	0.3
remoting	MS .NET Remoting services					333	0.287
http	Boa HTTPd	0.94.14rc21				332	0.286
irc	IRCnet ircd					286	0.246
irc	ratbox ircd					272	0.234
http-proxy	Squid http proxy	2.6.STABLE21				268	0.231
http	Boa HTTPd	0.93.15				258	0.222
eggdrop	Eggdrop irc bot console	1.6.18	botname: Amaralis			254	0.219
ssh	MikroTik RouterOS sshd		protocol 2.0	Linux	router	253	0.218
ssl	TLS	1.0				236	0.203
http	Hikvision-Webs					200	0.172
http	ProLinux	1.0				197	0.17
http	thttpd	2.25b				187	0.161
ssh	OpenSSH	5.1p1 Debian 5	protocol 2.0	Linux		183	0.158
directconnect	Direct Connect P2P			Windows		175	0.151
vnc	RealVNC Personal		protocol 4.0			174	0.15
http	Router					168	0.145
vnc	RealVNC Enterprise		protocol 4.1			158	0.136
http	PROLinux	2.0				146	0.126
smtp						141	0.121
http	lighttpd	1.4.29				140	0.12
http	thttpd	2.24				136	0.117
ftp	Microsoft ftpd			Windows		132	0.114
ssh	OpenSSH	5.9p1 Debian 5ubuntu1	Ubuntu Linux; protocol 2.0	Linux		130	0.112
http	thttpd					129	0.111
ssh	OpenSSH	5.3p1 Debian 3ubuntu7	Ubuntu Linux; protocol 2.0	Linux		124	0.107
ftp						122	0.105
irc	IRCnet-based ircd					116	0.1
http	TP-LINK Router					114	0.098
arcserve	ARCserve Discovery					114	0.098
http	nginx	0.8.33				111	0.096
intranetchat	Intranet Chat Server					108	0.093
ssh	OpenSSH	3.9p1	protocol 1.99			102	0.088
http	Boa HTTPd	0.94.13				100	0.086
ssh			protocol 1.5			99	0.085
ssh	OpenSSH	5.5p1 Debian 6+squeeze1	protocol 2.0	Linux		94	0.081
irc	BitlBee IRCd					94	0.081
http	micro_httpd					94	0.081
http	thttpd	2.20c 21nov01				92	0.079
ovm-manager	Oracle VM Manager					89	0.077
telnet	CircleMUD telnetd	3.0				81	0.07
http	nginx					74	0.064
vnc			protocol 3			70	0.06
ftp	Serv-U ftpd	6.4		Windows		68	0.059
lexlm	Lexmark language monitor					66	0.057
upnp	Microsoft Windows UPnP			Windows		65	0.056
http	MpVodServer	1.2				65	0.056
ftp	vsftpd	2.0.8 or later				64	0.055
ftp	Serv-U ftpd	6.0		Windows		63	0.054
http	http server 1.0					62	0.053
xml						59	0.051
http	Microsoft HTTPAPI httpd	1.0	SSDP/UPnP	Windows		58	0.05
http	Apache	2.2.3				57	0.049
ssh	OpenSSH	5.8p1 Debian 1ubuntu3	Ubuntu Linux; protocol 2.0	Linux		55	0.047
napster	WinMX or Lopster Napster P2P client					54	0.046
mongodb	MongoDB	4				53	0.046
ftp	Pure-FTPd					53	0.046
ftp	FileZilla ftpd			Windows		53	0.046
ssh	OpenSSH	5.8	protocol 2.0			51	0.044
http	Ubicom	1.1				51	0.044
http	lighttpd					50	0.043
socks5						49	0.042
ssh	Dropbear sshd	0.52	protocol 2.0	Linux		48	0.041
ssh	OpenSSH	2.3.0 mikrotik 2.9	protocol 1.99		router	46	0.04
http	Boa httpd					46	0.04
ssh	OpenSSH	5.8p1 Debian 7ubuntu1	Ubuntu Linux; protocol 2.0	Linux		44	0.038
http-proxy	Squid http proxy	2.6.STABLE12				44	0.038
http-proxy	MikroTik http proxy					44	0.038
ssh	OpenSSH	5.2	protocol 2.0			43	0.037
ssh	OpenSSH	5.1	protocol 2.0			41	0.035
jabber	Jabber instant messaging server		Protocol 1.0			41	0.035
svnserve	Subversion					40	0.034
http-proxy	Squid http proxy					40	0.034
http	Apache	1.3.26				40	0.034
http	GeoVision GeoHttpServer for webcams				webcam	39	0.034
eggdrop	Eggdrop IRC bot console	1.6.20				37	0.032
ssh	WeOnlyDo sshd	2.1.3	protocol 2.0	Windows		36	0.031
http	webserver	1.0				36	0.031
http	MiniServ	0.01	Webmin httpd			35	0.03
http	lighttpd	1.4.28				35	0.03
http	Apache	2.2.16				35	0.03
http	Apache	2.2.14				35	0.03
ftp	FileZilla ftpd	0.9.41 beta		Windows		35	0.03
ftp	FileZilla ftpd	0.9.39 beta		Windows		35	0.03
irc-proxy	psyBNC	2.3.1				34	0.029
ssh	OpenSSH	5.5p1 Debian 6	protocol 2.0	Linux		33	0.028
ssh	Dropbear sshd	0.53.1	protocol 2.0	Linux		33	0.028
smtp	Postfix smtpd					33	0.028
shell	w4ck1ng-shell	0.3	**BACKDOOR**			33	0.028
irc	Hybrid-based ircd					33	0.028
eggdrop	Eggdrop IRC bot console	1.6.21				33	0.028
ssh	OpenSSH	3.6.1p2	protocol 2.0			32	0.028
http	WYM httpd	1.0				32	0.028
vnc	VNC		protocol 3.3			29	0.025
ssh	OpenSSH	5.4p1	FreeBSD 20100308; protocol 2.0	FreeBSD		29	0.025
irc-proxy	psyBNC	2.3.2-7				29	0.025
http	uTorrent http admin	3.0				29	0.025
http	Router Webserver					29	0.025
http-proxy	Haproxy http proxy				load balancer	29	0.025
http	Jetty	8.0.y.z-SNAPSHOT				29	0.025
http	MiniServ	1.590	Webmin httpd			28	0.024
http	InterSect Alliance SNARE http config					28	0.024
http	H3C-Miniware-Webs					28	0.024
http	Jetty	6.1.x				27	0.023
http	Apache	2.2.22				27	0.023
vnc	Apple remote desktop vnc			Mac OS X		26	0.022
ssh	OpenSSH	5.6	protocol 2.0			26	0.022
telnet	Linux telnetd			Linux		25	0.022
ssh	OpenSSH	6.0p1 Debian 2	protocol 2.0	Linux		25	0.022
ntop-http	Ntop web interface	3.2		Linux		25	0.022
ssh	OpenSSH	3.9p1	protocol 2.0			24	0.021
ftp	ProFTPD					24	0.021
ssh	OpenSSH	5.1p1 Debian 5ubuntu1	Ubuntu Linux; protocol 2.0	Linux		23	0.02
ssh	OpenSSH	4.5p1	FreeBSD 20061110; protocol 2.0	FreeBSD		23	0.02
smtp	Microsoft Exchange smtpd			Windows		23	0.02
ftp	FileZilla ftpd	0.9.40 beta		Windows		23	0.02
vnc	VNC		protocol 3.7			22	0.019
ssh	OpenSSH	5.8p1-hpn13v11	protocol 2.0			22	0.019
ssh	Dropbear sshd	0.51	protocol 2.0	Linux		22	0.019
http	Microsoft ISA httpd			Windows		22	0.019
http	httpd 1.1					22	0.019
http	AR7 embedded httpd					22	0.019
ftp	Synology DiskStation NAS ftpd				storage-misc	22	0.019
ssh	OpenSSH	4.7p1 Debian 8ubuntu1.2	protocol 2.0	Linux		21	0.018
socks4	Connection ok					21	0.018
openvpn	OpenVPN					21	0.018
netbios-ssn						21	0.018
http	lighttpd	1.4.26				21	0.018
http	Boa HTTPd	0.94.11				21	0.018
socks5			Username/password authentication required			20	0.017
irc	ngircd					20	0.017
http	Linksys router http config		device model BEFSR41		WAP	20	0.017
ftp	vsftpd	2.0.5		Unix		20	0.017
ftp	FileZilla ftpd	0.9.24 beta		Windows		20	0.017