Overview of services running on Port 5190 TCP.
~347 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
smtp		284264	81.875
smtp	Sendmail	30698	8.842
http		11984	3.452
irc	Dancer ircd	4055	1.168
http	SonicWALL	3730	1.074
chat	AIM or ICQ server	2439	0.702
no match	-/-	1780	0.513
http-proxy	Squid http proxy	1390	0.4
ssl	SSLv3	957	0.276
http	lighttpd	879	0.253
http	AIM	597	0.172
ssh	OpenSSH	484	0.139
http	Apache	437	0.126
http	Microsoft IIS httpd	255	0.073
smtp	Exim smtpd	251	0.072
http	thttpd	182	0.052
http	Icecast streaming media server	127	0.037
http	Netwave IP camera http config	117	0.034
ssh		112	0.032
http	GoAhead-Webs httpd	110	0.032
vnc	VNC	100	0.029
http	Microsoft HTTPAPI httpd	94	0.027
http	Apache Tomcat/Coyote JSP engine	87	0.025
http	Avtech AVN801 network camera	83	0.024
http	Boa HTTPd	76	0.022
ssh	Dropbear sshd	64	0.018
irc	Unreal ircd	64	0.018
smtp	Postfix smtpd	57	0.016
telnet		56	0.016
http	PDR-M800	52	0.015
jabber	ejabberd	45	0.013
smtp	Microsoft ESMTP	35	0.01
http	mini_httpd	32	0.009
ftp		32	0.009
mysql	MySQL	31	0.009
http	uTorrent WebUI	30	0.009
ftp	Microsoft ftpd	29	0.008
openvpn	OpenVPN	28	0.008
http-proxy	EZproxy web proxy	27	0.008
http	Hikvision-Webs	27	0.008
vnc	RealVNC Personal	24	0.007
http	Mbedthis-Appweb	23	0.007
http	GoAhead-Webs	23	0.007
vnc	RealVNC Enterprise	22	0.006
http	UserGate http report area	22	0.006
http	nginx	22	0.006
smtp	Microsoft Exchange smtpd	21	0.006
ftp	FileZilla ftpd	21	0.006
vnc		19	0.005
http	uc-httpd	18	0.005
http	MiniServ	18	0.005
http	Jetty	18	0.005
http	GeoVision GeoHttpServer for webcams	18	0.005
ftp	ProFTPD	17	0.005
ftp	vsftpd	16	0.005
http-proxy	F5 BIG-IP load balancer http proxy	15	0.004
http	Microsoft ISA httpd	14	0.004
http	DVR Systems webcam http interface	14	0.004
http	Cross Web Server	14	0.004
arcserve	ARCserve Discovery	14	0.004
socks-proxy	Socks4A	13	0.004
upnp	Portable SDK for UPnP devices	12	0.003
ssh	Bitvise WinSSHD	12	0.003
irc	InspIRCd	12	0.003
http	AIM HTTP	12	0.003
http	World Client WDaemon httpd	11	0.003
http-proxy	3Proxy http proxy	11	0.003
http	Gadspot/Avtech AV787 webcam http config	11	0.003
http	D-Link DCS-900 webcam http config	11	0.003
http	D-Link/Airlink IP webcam http config	11	0.003
tcpwrapped	BSD TCP Wrappers	10	0.003
ssl	TLS	10	0.003
ssl	Microsoft IIS SSL	10	0.003
http	WYM httpd	10	0.003
http	Allegro RomPager	10	0.003
ftp	Serv-U ftpd	10	0.003
ftp	Pure-FTPd	10	0.003