Overview of services running on Port 3333 TCP.
~74 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
no match	-/-	39919	53.23
eggdrop	Eggdrop IRC bot console	7407	9.877
irc	Dancer ircd	4057	5.41
ssh	OpenSSH	3056	4.075
chat	AIM or ICQ server	2309	3.079
eggdrop	Eggdrop irc bot console	2090	2.787
mysql	MySQL	1717	2.29
http		1604	2.139
http	Microsoft IIS httpd	1139	1.519
http	lighttpd	1069	1.425
http	Microsoft HTTPAPI httpd	804	1.072
http	Boa HTTPd	794	1.059
http-proxy	Squid http proxy	660	0.88
http	thttpd	512	0.683
ssh	Dropbear sshd	433	0.577
http	Apache	418	0.557
vnc	VNC	412	0.549
irc-proxy	psyBNC	371	0.495
http	Boa httpd	337	0.449
http	GoAhead-Webs httpd	261	0.348
http-proxy	Fortech Proxy+ http admin	257	0.343
ftp		226	0.301
http	WangWnagSimpleServer	221	0.295
remoting	MS .NET Remoting services	180	0.24
ssl	TLS	178	0.237
telnet	utelnetd	174	0.232
http	Apache Tomcat/Coyote JSP engine	160	0.213
openvpn	OpenVPN	143	0.191
ftp	Microsoft ftpd	138	0.184
ssh		128	0.171
http	World Client WDaemon httpd	121	0.161
http	WEBrick httpd	120	0.16
telnet	foobar2000 remote control telnetd	105	0.14
insight-manager	Consul InSight Manager	105	0.14
http	nginx	103	0.137
directconnect	Direct Connect P2P	101	0.135
telnet		91	0.121
ftp	vsftpd (before 2.0.8) or WU-FTPD	85	0.113
ftp	FileZilla ftpd	85	0.113
ftp	Serv-U ftpd	82	0.109
http	Xymphony-WS	81	0.108
arcserve	ARCserve Discovery	78	0.104
http	Virata-EmWeb	77	0.103
http	Jetty	75	0.1
http	Hikvision-Webs	73	0.097
ftp	Pure-FTPd	72	0.096
telnet	Linux telnetd	64	0.085
http	Router	60	0.08
ftp	vsftpd	60	0.08
vnc	RealVNC Personal	59	0.079
ftp	ProFTPD	59	0.079
svnserve	Subversion	58	0.077
beep		58	0.077
ssh	MikroTik RouterOS sshd	57	0.076
netbios-ssn		56	0.075
rsync		55	0.073
http	TP-LINK Router	55	0.073
smtp	IMail NT-ESMTP	52	0.069
ssh	Force10 switch sshd	47	0.063
http-proxy	MikroTik http proxy	44	0.059
vnc	RealVNC Enterprise	42	0.056
http	http server 1.0	42	0.056
ssh	Cisco SSH	39	0.052
http	GeoVision GeoHttpServer for webcams	36	0.048
smtp	Postfix smtpd	32	0.043
http	Panasonic webcam http config	30	0.04
http	Cross Web Server	30	0.04
http	webserver	29	0.039
smtp	Microsoft ESMTP	28	0.037
nntp	INN nntpd	28	0.037
upnp	Microsoft Windows UPnP	26	0.035
smtp		25	0.033
xml		24	0.032
http	WYM httpd	24	0.032
dominoconsole	Lotus Domino Console	24	0.032
telnet	NewCS card sharing system telnetd	23	0.031
http	Linksys router http config	23	0.031
http	libwww-perl-daemon httpd	21	0.028
http	Ubicom	19	0.025
bandwidth-test	MikroTik bandwidth-test server	19	0.025
ssh	WeOnlyDo sshd	18	0.024
napster	WinMX or Lopster Napster P2P client	18	0.024
http	Microsoft ISA httpd	17	0.023
socks5		16	0.021
printer		16	0.021
meterpreter	Metasploit meterpreter	16	0.021
http	WindWeb	16	0.021
http	MiniServ	16	0.021
http	Digifort Enterprise 6.5 httpd	15	0.02
smtp	Alt-N MDaemon mail server	14	0.019
ftp	Dreambox ftpd	14	0.019
smtp	Microsoft Exchange smtpd	13	0.017
http	Router Webserver	13	0.017
ftp	Gene6 ftpd	13	0.017
vnc	Apple remote desktop vnc	12	0.016
ssh	Bitvise WinSSHD	12	0.016
ssh	SCS sshd	11	0.015
ntop-http	Ntop web interface	11	0.015
irc	Unreal ircd	11	0.015
http	RealVNC	11	0.015
zabbix	Zabbix Monitoring System	10	0.013
ssh	SunSSH	10	0.013
eggdrop	Eggdrop IRC bot console with SSL	10	0.013