Overview of services running on Port 50023 TCP.
~7 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	-/-	1909	26.88
chat	AIM or ICQ server	1846	25.993
telnet	Draytek Vigor ADSL router telnetd	578	8.139
http	lighttpd	374	5.266
telnet		351	4.942
http		351	4.942
telnet	Linux telnetd	283	3.985
ssh	OpenSSH	190	2.675
http	Microsoft IIS httpd	146	2.056
http	Microsoft HTTPAPI httpd	109	1.535
ssh		91	1.281
http	thttpd	72	1.014
ssl	TLS	66	0.929
ftp	ProFTPD	57	0.803
telnet	Enterasys XSR Security Router telnetd	47	0.662
vnc	VNC	39	0.549
ftp		39	0.549
http	WangWnagSimpleServer	29	0.408
ftp	Microsoft ftpd	27	0.38
ftp	FileZilla ftpd	24	0.338
mysql	MySQL	20	0.282
http	nginx	20	0.282
http	Boa HTTPd	19	0.268
smtp	Microsoft ESMTP	17	0.239
http	Cisco IOS http config	16	0.225
http	Jetty	13	0.183
telnet	Netgear broadband router or ZyXel VoIP adapter telnetd	12	0.169
telnet	Netopia ADSL router telnetd	10	0.141
telnet	BSD-derived telnetd	10	0.141
ssh	Dropbear sshd	10	0.141
http	Virata-EmWeb	10	0.141
http	Ubicom	10	0.141