Overview of services running on Port 4444 TCP.
~123 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	Count	Percent
ssl	TLSv1		38711	31.371
no match	-/-	-/-	22368	18.127
http	Apache		21695	17.581
ssl	SSLv3		11352	9.2
irc	Dancer ircd		3481	2.821
telnet	Cisco router telnetd		3268	2.648
http			2497	2.024
chat	AIM or ICQ server		1942	1.574
http	SonicWALL		1720	1.394
honeypot	honeyd cmdexe.pl		1254	1.016
http	Apache	2.2.8	1152	0.934
eggdrop	Eggdrop IRC bot console	1.6.20	1103	0.894
eggdrop	Eggdrop irc bot console	1.6.19+ctcpfix	802	0.65
ssh	OpenSSH	4.3	513	0.416
http	Microsoft HTTPAPI httpd	2.0	478	0.387
http	Secure Computing Sidewinder firewall http admin		401	0.325
http	lighttpd	1.4.19	394	0.319
eggdrop	Eggdrop IRC bot console	1.6.21	333	0.27
http	AIM	1.0	281	0.228
http	Jetty	5.1.x	279	0.226
ssl	TLS	1.0	273	0.221
http	Microsoft IIS httpd		253	0.205
http-proxy	Squid http proxy		237	0.192
http	Apache	2.2.9	210	0.17
vnc	VNC		187	0.152
http	GoAhead-Webs httpd		167	0.135
http	thttpd	2.25b	166	0.135
eggdrop	Eggdrop irc bot console	1.6.18	140	0.113
http	Boa HTTPd	0.94.14rc21	138	0.112
irc-proxy	psyBNC	2.3.2-6	135	0.109
ssh			117	0.095
http	ZNC IRC bouncer http config	0.097 or later	110	0.089
eggdrop	Eggdrop irc bot console	1.6.19	102	0.083
directconnect	Direct Connect P2P		99	0.08
http	Netwave IP camera http config		98	0.079
http	lighttpd	1.4.29	98	0.079
ssh	Dropbear sshd	0.52	92	0.075
http	lighttpd	1.4.28	91	0.074
http	Apache Tomcat/Coyote JSP engine	1.1	88	0.071
http	Microsoft IIS httpd	6.0	86	0.07
http	Jetty	6.0.x	84	0.068
http	Apache	2.2.3	78	0.063
http	Apache	2.2.14	78	0.063
ovm-manager	Oracle VM Manager		77	0.062
backdoor	OptixPro backdoor		76	0.062
ssh	OpenSSH	5.3	74	0.06
http	Avtech AVN801 network camera	1.0	74	0.06
http	thttpd		73	0.059
http	Jetty	7.x.y-SNAPSHOT	72	0.058
remoting	MS .NET Remoting services		71	0.058
irc	Unreal ircd		71	0.058
http	thttpd	2.24	69	0.056
http	Microsoft IIS httpd	5.1	69	0.056
ftp	Microsoft ftpd		68	0.055
telnet			66	0.053
ripbot	RipBot video encoding server		66	0.053
smtp	Microsoft ESMTP	7.5.7601.17514	65	0.053
http	GeoVision GeoHttpServer for webcams		63	0.051
http	Thin	1.4.1	62	0.05
http	Apache	2.2.16	60	0.049
ssh	OpenSSH	5.1p1 Debian 5	59	0.048
http	Jetty	6.1.x	58	0.047
http-proxy	3Proxy http proxy		55	0.045
http	TBS	R2 UPnP	52	0.042
http	Apache	2.2.22	51	0.041
ssh	OpenSSH	5.3p1 Debian 3ubuntu7	50	0.041
ftp			48	0.039
arcserve	ARCserve Discovery		46	0.037
ssh	OpenSSH	5.5p1 Debian 6+squeeze2	45	0.036
http	Draytek Vigor ADSL router webadmin		45	0.036
telnet	Roku SoundBridge telnetd	3.0.44	44	0.036
http	Sockso personal music player httpd		43	0.035
ssh	OpenSSH	5.9p1 Debian 5ubuntu1	42	0.034
http	Microsoft IIS httpd	7.5	42	0.034
shell	w4ck1ng-shell	0.3	41	0.033
http	Hikvision-Webs		40	0.032
ftp	Serv-U ftpd		40	0.032
ftp	Pure-FTPd		40	0.032
xml			38	0.031
ssh	OpenSSH	5.8	38	0.031
kerberos	Heimdal Kerberos		38	0.031
http	Oracle Universal Content Management httpd		38	0.031
http	mini_httpd	1.19 19dec2003	38	0.031
http	uTorrent WebUI		36	0.029
ssl	Microsoft IIS SSL		34	0.028
http	Citrix Metaframe ICA Browser		34	0.028
ssh	OpenSSH	5.4p1	33	0.027
http	Xymphony-WS		33	0.027
http	Virata-EmWeb	6.0.1	33	0.027
vnc	RealVNC Enterprise		31	0.025
upnp	Portable SDK for UPnP	1.3.1	31	0.025
netbios-ssn			31	0.025
http-proxy	Squid http proxy	2.7.STABLE9	30	0.024
http	lighttpd	1.4.30	30	0.024
http	thttpd	2.25b 29dec2003	28	0.023
http-proxy	Squid http proxy	2.6.STABLE12	28	0.023
http	Mbedthis-Appweb	2.0.4	28	0.023
http	PDR-M800	1.0	27	0.022
http	Apache	2.2.15	27	0.022
ssh	OpenSSH	5.5p1 Debian 6+squeeze1	26	0.021
http	Boa HTTPd	0.94.13	26	0.021
svnserve	Subversion		25	0.02
rsync			25	0.02
http	uTorrent utserver web interface		25	0.02
http	Router		25	0.02
http	nginx		25	0.02
vnc			24	0.019
http	Allegro RomPager	4.07 UPnP/1.0	24	0.019
ssh	MikroTik RouterOS sshd		22	0.018
http	Ubicom	1.1	22	0.018
http	Sockso music server		22	0.018
http	KskServer		22	0.018
ssh	OpenSSH	5.2	21	0.017
openvpn	OpenVPN		21	0.017
http	uc-httpd	1.0.0	21	0.017
http	Boa HTTPd	0.93.15	21	0.017
ftp	vsftpd	2.0.8 or later	21	0.017
ssh	OpenSSH	5.9	20	0.016
http	Microsoft ISA httpd		19	0.015
http	DirectAdmin Daemon v1.41.0		19	0.015
http	Apache	2.2.21	19	0.015
http	Apache	2.2.17	19	0.015
vnc	RealVNC Personal		18	0.015
ssh	OpenSSH	5.8p1 Debian 7ubuntu1	18	0.015
meterpreter	Metasploit meterpreter		18	0.015
http	nginx	1.2.1	18	0.015
http	MiniServ	1.550	18	0.015
http	iKeyGuard	1.0	18	0.015
http	DirectAdmin Daemon v1.41.1		18	0.015
http	ADTRAN		18	0.015
ssh	OpenSSH	3.9p1	17	0.014
http-proxy	MikroTik http proxy		17	0.014
http-proxy	CCProxy http proxy		17	0.014
http	Intoto httpd	1.0	17	0.014
http	Gadspot/Avtech AV787 webcam http config		17	0.014
http	Apache Tomcat	3.2.4	17	0.014
ssh	OpenSSH	6.0p1 Debian 2	16	0.013
jetdirect	JetDirect		16	0.013
http	WangWnagSimpleServer	1.0	16	0.013
http	monocle	0.17	16	0.013
http	lighttpd		16	0.013
http	GoAhead-Webs		16	0.013
http	Cross Web Server		16	0.013
ftp	FileZilla ftpd	0.9.41 beta	16	0.013
smtp			15	0.012
http	uhttpd	1.0.0	15	0.012
http-proxy	EZproxy web proxy		15	0.012
http	Microsoft IIS httpd	7.0	15	0.012
http	Linksys router http config		15	0.012
http	DVR Systems webcam http interface		15	0.012