Overview of services running on Port 3389 TCP.
~6.24 Million 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
ms-wbt-server	Microsoft Terminal Service		6203805	99.436
ms-wbt-server	xrdp		13342	0.214
irc	Dancer ircd		4038	0.065
no match	-/-	-/-	3992	0.064
ms-wbt-server	VirtualBox VM Remote Desktop Service		2631	0.042
chat	AIM or ICQ server		1779	0.029
ssh	OpenSSH	4.3	1245	0.02
vnc	VNC		799	0.013
ssh	OpenSSH	5.3	530	0.008
http			502	0.008
http	Microsoft IIS httpd		394	0.006
ssh	OpenSSH	4.7	295	0.005
ssh	OpenSSH	5.5p1 Debian 6+squeeze1	292	0.005
ssh	OpenSSH	5.5p1 Debian 6+squeeze2	287	0.005
http	Microsoft HTTPAPI httpd	2.0	244	0.004
http	lighttpd	1.4.19	221	0.004
vnc	RealVNC Enterprise		214	0.003
http	WangWnagSimpleServer	1.0	161	0.003
ssh	OpenSSH	5.9p1 Debian 5ubuntu1	138	0.002
http	Boa HTTPd	0.94.14rc21	137	0.002
citrix-ica	Citrix Metaframe XP ICA		135	0.002
telnet	Linux telnetd		131	0.002
ssh	OpenSSH	5.3p1 Debian 3ubuntu7	120	0.002
http	micro_httpd		119	0.002
openvpn	OpenVPN		108	0.002
ssh	OpenSSH	5.1p1 Debian 5	106	0.002
ssh			103	0.002
ssh	OpenSSH	4.2	94	0.002
vnc	RealVNC Personal		85	0.001
arcserve	ARCserve Discovery		83	0.001
ssh	OpenSSH	3.9p1	82	0.001
telnet			81	0.001
http	Jetty	8.y.z-SNAPSHOT	79	0.001
ssh	Dropbear sshd	0.52	67	0.001
ssh	OpenSSH	4.1	64	0.001
vnc			62	0.001
http	Ubicom	1.1	60	0.001
ftp	Microsoft ftpd		51	0.001
ssh	OpenSSH	5.8p1-hpn13v10	50	0.001
http	uhttpd	1.0.0	50	0.001
ssh	OpenSSH	5.5	46	0.001
ftp			42	0.001
http	Router		40	0.001
ssh	OpenSSH	3.8.1p1	39	0.001
ssh	OpenSSH	5.9	38	0.001
ssh	OpenSSH	5.8	38	0.001
http	nginx		38	0.001
ssh	OpenSSH	5.5p1 Debian 6	36	0.001
minecraft	Minecraft game server		36	0.001
http	TP-LINK Router		35	0.001
smtp			34	0.001
ssh	OpenSSH	6.0p1 Debian 2	31	0.0
smtp	Postfix smtpd		30	0.0
http	thttpd		29	0.0
vnc	Apple remote desktop vnc		28	0.0
ssh	OpenSSH	5.8p1 Debian 7ubuntu1	28	0.0
ssh	OpenSSH	5.8p1 Debian 1ubuntu3	28	0.0
ssh	OpenSSH	5.2	28	0.0
nntp	INN nntpd		28	0.0
http	Boa HTTPd	0.93.15	28	0.0
ssh	OpenSSH	4.3p2	26	0.0
ssh	OpenSSH	6.0p1 Debian 3	25	0.0
ssh	OpenSSH	5.1p1	24	0.0
ssh	OpenSSH	5.1	21	0.0
http	Linksys router http config		21	0.0
ssh	OpenSSH	6.0	20	0.0
ssh	OpenSSH	5.4p1	20	0.0
ftp	Serv-U ftpd	6.0	20	0.0
ssh	OpenSSH	5.6	19	0.0
ssh	OpenSSH	4.3p2 Debian 9etch3	19	0.0
irc	Unreal ircd		19	0.0
http	httpd 1.1		19	0.0
directconnect	Direct Connect P2P		19	0.0
ssh	OpenSSH	5.8p2_hpn13v11	18	0.0
ssh	Dropbear sshd	2011.54	18	0.0
ftp	Serv-U ftpd	6.4	18	0.0
ftp	FileZilla ftpd	0.9.41 beta	18	0.0
damewaremr	DameWare Mini Remote Control		18	0.0
telnet	Netgear broadband router or ZyXel VoIP adapter telnetd		17	0.0
ssh	OpenSSH	6.1	17	0.0
ssh	OpenSSH	5.3p1 Debian 3ubuntu6	16	0.0
ssh	Dropbear sshd	0.53.1	16	0.0
http	MiniServ	0.01	16	0.0
ssh	SCS sshd	2.0.13	15	0.0
ssh	OpenSSH	5.5p1 Debian 4ubuntu6	15	0.0
ssh	OpenSSH	4.7p1 Debian 8ubuntu1.2	15	0.0
jabber	ejabberd		15	0.0
http	WYM httpd	1.0	15	0.0
http	Router Webserver		15	0.0
eggdrop	Eggdrop irc bot console	1.6.18	15	0.0