Overview of services running on Port 50022 TCP.
~15 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
ssh	Dropbear sshd	0.50	3515	21.982
chat	AIM or ICQ server		1821	11.388
no match	-/-	-/-	1544	9.656
ssh	Dropbear sshd	0.51	1216	7.605
ssh	OpenSSH	4.3	1128	7.054
ssh	MikroTik RouterOS sshd		432	2.702
http	lighttpd	1.4.19	381	2.383
ssh	OpenSSH	2.3.0 mikrotik 2.9	354	2.214
http			351	2.195
ssh	OpenSSH	5.3	275	1.72
ssh	OpenSSH	5.5p1 Debian 6+squeeze2	232	1.451
irc-proxy	psyBNC	2.3.2-7	229	1.432
ssh	OpenSSH	5.1p1 Debian 5	181	1.132
ssh	Dropbear sshd	0.52	179	1.119
ssh	OpenSSH	5.1	168	1.051
ssh	OpenSSH	5.3p1 Debian 3ubuntu7	164	1.026
ssh	OpenSSH	5.2	151	0.944
ssh			148	0.926
ssh	DrayTek Vigor 2820n ADSL router sshd	2.0	143	0.894
http	Microsoft IIS httpd		136	0.851
ssh	SCS sshd	3.2.9.1	130	0.813
ssh	OpenSSH	5.8p2_hpn13v11	117	0.732
ssh	OpenSSH	3.9p1	112	0.7
ssh	OpenSSH	5.4p1	106	0.663
ssh	OpenSSH	5.5p1 Debian 6+squeeze1	98	0.613
ssh	OpenSSH	5.9p1 Debian 5ubuntu1	96	0.6
http	Microsoft HTTPAPI httpd	2.0	96	0.6
ssh	OpenSSH	5.5p1 Debian 3	92	0.575
ssh	Dropbear sshd	0.48	86	0.538
ssh	OpenSSH	5.8	84	0.525
ssh	OpenSSH	5.1p1	80	0.5
ssh	Linksys WRT45G modified dropbear sshd		66	0.413
ssh	OpenSSH	4.7	63	0.394
ssh	OpenSSH	4.2	63	0.394
ssh	OpenSSH	4.7p1 Debian 8ubuntu3	57	0.356
telnet			54	0.338
ssh	OpenSSH	5.5p1 Debian 6	47	0.294
ssh	OpenSSH	4.4	47	0.294
http	thttpd		47	0.294
ssh	OpenSSH	5.6	46	0.288
ssh	OpenSSH	4.5p1	44	0.275
ftp	ProFTPD	1.3.3	44	0.275
vnc	VNC		43	0.269
ssh	OpenSSH	5.9	43	0.269
ssh	OpenSSH	5.8p1 Debian 7ubuntu1	41	0.256
http	WangWnagSimpleServer	1.0	40	0.25
ssh	OpenSSH	5.8p1 Debian 1ubuntu3	38	0.238
ssl	TLS	1.0	36	0.225
ssh	OpenSSH	4.7p1 Debian 8ubuntu1.2	36	0.225
ftp			36	0.225
ssh	OpenSSH	5.5	33	0.206
ssh	Dropbear sshd	0.53.1	33	0.206
ftp	Microsoft ftpd		32	0.2
ssh	OpenSSH	6.0	31	0.194
ssh	OpenSSH	5.4	31	0.194
http	Boa HTTPd	0.94.14rc21	28	0.175
ssh	OpenSSH	5.3p1 Debian 3ubuntu4	25	0.156
ssh	OpenSSH	5.8p1-hpn13v11	24	0.15
ssh	OpenSSH	3.8.1p1	24	0.15
ssh	OpenSSH	5.5p1 Debian 4ubuntu6	23	0.144
ssh	Bitvise WinSSHD	5.23	23	0.144
ssh	OpenSSH	4.3p2 Debian 9etch3	22	0.138
ssh	OpenSSH	2.9p2	22	0.138
ssh	Dropbear sshd	2011.54	21	0.131
ssh	OpenSSH	4.6	20	0.125
ssh	WeOnlyDo sshd	2.1.3	19	0.119
ssh	SCS sshd	1.0.0	19	0.119
ssh	SCS sshd	1.4.0	17	0.106
ssh	OpenSSH	5.1p1 Debian 5ubuntu1	17	0.106
ssh	Cisco SSH	1.25	17	0.106
http	thttpd	2.25b	17	0.106