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	Count	Percent
ssl	TLSv1	38711	31.371
http	Apache	23541	19.077
no match	-/-	22368	18.127
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
eggdrop	Eggdrop IRC bot console	1444	1.17
honeypot	honeyd cmdexe.pl	1254	1.016
ssh	OpenSSH	1243	1.007
eggdrop	Eggdrop irc bot console	1076	0.872
http	lighttpd	657	0.532
http	Jetty	546	0.442
http	Microsoft HTTPAPI httpd	488	0.395
http	Microsoft IIS httpd	472	0.383
http	Secure Computing Sidewinder firewall http admin	401	0.325
http	thttpd	390	0.316
http-proxy	Squid http proxy	342	0.277
http	AIM	281	0.228
ssl	TLS	273	0.221
http	Boa HTTPd	205	0.166
vnc	VNC	187	0.152
irc-proxy	psyBNC	168	0.136
http	GoAhead-Webs httpd	167	0.135
ssh	Dropbear sshd	129	0.105
ssh		117	0.095
http	ZNC IRC bouncer http config	110	0.089
http	nginx	107	0.087
directconnect	Direct Connect P2P	99	0.08
http	Netwave IP camera http config	98	0.079
http	Apache Tomcat/Coyote JSP engine	88	0.071
smtp	Microsoft ESMTP	85	0.069
mysql	MySQL	80	0.065
ovm-manager	Oracle VM Manager	77	0.062
backdoor	OptixPro backdoor	76	0.062
http	Avtech AVN801 network camera	74	0.06
remoting	MS .NET Remoting services	71	0.058
irc	Unreal ircd	71	0.058
ftp	Microsoft ftpd	71	0.058
http	Thin	68	0.055
telnet		66	0.053
ripbot	RipBot video encoding server	66	0.053
http	GeoVision GeoHttpServer for webcams	63	0.051
ftp	Serv-U ftpd	63	0.051
telnet	Roku SoundBridge telnetd	56	0.045
http-proxy	3Proxy http proxy	55	0.045
http	TBS	52	0.042
ftp		48	0.039
http	MiniServ	46	0.037
arcserve	ARCserve Discovery	46	0.037
http	Draytek Vigor ADSL router webadmin	45	0.036
http	Mbedthis-Appweb	44	0.036
http	AdSubtract httpd	44	0.036
ftp	FileZilla ftpd	44	0.036
http	Sockso personal music player httpd	43	0.035
http	Allegro RomPager	42	0.034
shell	w4ck1ng-shell	41	0.033
http	Virata-EmWeb	41	0.033
ftp	Pure-FTPd	41	0.033
http	Hikvision-Webs	40	0.032
xml		38	0.031
kerberos	Heimdal Kerberos	38	0.031
http	Oracle Universal Content Management httpd	38	0.031
http	mini_httpd	38	0.031
http	uTorrent WebUI	36	0.029
ssl	Microsoft IIS SSL	34	0.028
http	Citrix Metaframe ICA Browser	34	0.028
http	Xymphony-WS	33	0.027
ftp	ProFTPD	33	0.027
vnc	RealVNC Enterprise	31	0.025
upnp	Portable SDK for UPnP	31	0.025
netbios-ssn		31	0.025
http	PDR-M800	27	0.022
svnserve	Subversion	25	0.02
rsync		25	0.02
http	uTorrent utserver web interface	25	0.02
http	Router	25	0.02
ftp	vsftpd	25	0.02
vnc		24	0.019
ssh	MikroTik RouterOS sshd	22	0.018
http	Ubicom	22	0.018
http	Sockso music server	22	0.018
http	KskServer	22	0.018
openvpn	OpenVPN	21	0.017
http	uc-httpd	21	0.017
smtp	Sendmail	19	0.015
http	Microsoft ISA httpd	19	0.015
http	DirectAdmin Daemon v1.41.0	19	0.015
vnc	RealVNC Personal	18	0.015
meterpreter	Metasploit meterpreter	18	0.015
java-rmi	Java RMI	18	0.015
http	iKeyGuard	18	0.015
http	GoAhead-Webs	18	0.015
http	DirectAdmin Daemon v1.41.1	18	0.015
http	ADTRAN	18	0.015
http	uhttpd	17	0.014
http-proxy	MikroTik http proxy	17	0.014
http-proxy	CCProxy http proxy	17	0.014
http	Intoto httpd	17	0.014
http	Gadspot/Avtech AV787 webcam http config	17	0.014
http	Apache Tomcat	17	0.014
jetdirect	JetDirect	16	0.013
http	WangWnagSimpleServer	16	0.013
http	monocle	16	0.013
http	Cross Web Server	16	0.013
smtp		15	0.012
http-proxy	EZproxy web proxy	15	0.012
http	Linksys router http config	15	0.012
http	libwww-perl-daemon httpd	15	0.012
http	DVR Systems webcam http interface	15	0.012
telnet	Draytek Vigor ADSL router telnetd	14	0.011
irc-proxy	ShroudBNC irc-proxy	14	0.011
http	Ubicom httpd	14	0.011
http	SonicWALL firewall http config	14	0.011
ssh	Cisco SSH	13	0.011
socks5		13	0.011
smtp	Microsoft Exchange smtpd	13	0.011
http	DD-WRT milli_httpd	13	0.011
zabbix	Zabbix Monitoring System	12	0.01
vnc	Apple remote desktop vnc	12	0.01
socks-proxy	Socks4A	12	0.01
upnp	Portable SDK for UPnP devices	11	0.009
telnet	VLC media player telnetd	11	0.009
http-proxy	F5 BIG-IP load balancer http proxy	11	0.009
dominoconsole	Lotus Domino Console	11	0.009
ssh	Bitvise WinSSHD	10	0.008
mongodb	MongoDB	10	0.008
http	WYM httpd	10	0.008
http	World Client WDaemon httpd	10	0.008
http	WEBrick httpd	10	0.008
http	TwistedWeb httpd	10	0.008
http	Transmission BitTorrent management httpd	10	0.008
http	Sagem F@st router httpd	10	0.008
http	go1984 httpd	10	0.008
http	ESET NOD32 anti-virus update httpd	10	0.008
http	CherryPy httpd	10	0.008
http	CCcam card sharing system http config	10	0.008
http	Boa httpd	10	0.008