Overview of services running on Port 22 TCP.
~14.16 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	Count	Percent
ssh	OpenSSH	6406548	45.231
ssh	Dropbear sshd	4529275	31.977
ssh		824522	5.821
ssh	Cisco SSH	708433	5.002
ssh	MikroTik RouterOS sshd	321086	2.267
ssh	SCS sshd	180314	1.273
no match	-/-	170009	1.2
ssh	AllegroSoft RomSShell sshd	134854	0.952
ssh	Huawei VRP sshd	108333	0.765
ssh	Linksys WRT45G modified dropbear sshd	107877	0.762
ssh	Seagate GoFlex NAS device sshd	97593	0.689
ssh	lancom sshd	83852	0.592
ssh	NetScreen sshd	67267	0.475
ssh	Cisco/3com IPSSHd	57992	0.409
ssh	SunSSH	48056	0.339
ssh	Mocana embedded SSH	30562	0.216
ssh	Cyberoam firewall sshd	23317	0.165
ssh	WeOnlyDo sshd	20417	0.144
ssh	DrayTek Vigor 2820n ADSL router sshd	20126	0.142
ssh	Serv-U SSH Server	19841	0.14
ssh	Fortinet VPN/firewall sshd	18269	0.129
ssh	Bitvise WinSSHD	17002	0.12
http		14422	0.102
sftp	ProFTPD mod_sftp	13802	0.097
ssh	ZyXEL ZyWALL sshd	12823	0.091
ssh	APC AOS cryptlib sshd	8936	0.063
tcpwrapped	BSD TCP Wrappers	8615	0.061
ssh	Adtran Netvanta RomCliSecure sshd	8540	0.06
ssh	HP Integrated Lights-Out mpSSH	7794	0.055
ftp	Microsoft ftpd	7590	0.054
ssh	GlobalScape CuteFTP sshd	5731	0.04
ssh	libssh	5060	0.036
ssh	WS_FTP sshd	3973	0.028
ssh	CoreFTP sshd	3838	0.027
ssh	Cisco IP Phone CP-7900G-series sshd	3709	0.026
ssh	Radware sshd	3704	0.026
ssl	SSLv3	3482	0.025
ssh	Force10 switch sshd	2720	0.019
ssh	USHA SSH	2678	0.019
ssh	VanDyke VShell sshd	2651	0.019
ftp	Serv-U ftpd	2614	0.018
ssh	Cisco VPN Concentrator SSHd	2589	0.018
ftp	FileZilla ftpd	2468	0.017
ssh	Cerberus FTP Server sshd	2422	0.017
chat	AIM or ICQ server	2373	0.017
ssh	Pragma FortessSSH	1981	0.014
http	SonicWALL	1844	0.013
ftp	MikroTik router ftpd	1689	0.012
ftp		1571	0.011
ssh	FortiSSH	1498	0.011
http	lighttpd	1330	0.009
ssh	SrSshServer	1287	0.009
ssh	SCS NetScreen sshd	1146	0.008
ftp	ProFTPD	1005	0.007
ftp	Actiontec router ftpd	976	0.007
ssh	3Com switch sshd	964	0.007
ssh	FreSSH	900	0.006
ssh	APSSHd	831	0.006
ssh	Sysax Multi Server sshd	816	0.006
ssh	F-Secure sshd	813	0.006
ssh	D-Link sshd	806	0.006
http	Microsoft IIS httpd	787	0.006
ftp	vsftpd	713	0.005
ssh	lshd secure shell	638	0.005
ssh	Cisco CSS SSH	605	0.004
http	Apache	512	0.004
telnet		466	0.003
ssh	Sun StorEdge 3511 sshd	438	0.003
ssh	Cyberoam UTM firewall sshd	421	0.003
netbios-ssn		420	0.003
ssh	Akamai SSH	411	0.003
http	AIM	408	0.003
ssh	3Com WX2200 or WX4400 NOS sshd	402	0.003
ssh	Allot Netenforcer OpenSSH	389	0.003
ftp	Gene6 ftpd	378	0.003
http	Microsoft HTTPAPI httpd	319	0.002
vnc	VNC	316	0.002
ssh	AOS sshd	303	0.002
http	WYM httpd	285	0.002
telnet	Linux telnetd	279	0.002
ssh	Kojoney SSH honeypot	247	0.002
ftp	Pure-FTPd	243	0.002
telnet	slush telnetd	242	0.002
ftp	Dreambox ftpd	233	0.002
ssh	DesktopAuthority OpenSSH	219	0.002
ssh	Foundry Networks switch sshd	216	0.002
smtp	Exim smtpd	201	0.001
ssh	Nortel SSH	191	0.001
http-proxy	Squid http proxy	173	0.001
ssh	SSHTools J2SSH	168	0.001
ssh	Cisco switch sshd	153	0.001
ssh	NetApp Data ONTAP sshd	148	0.001
http	GoAhead-Webs httpd	147	0.001
ssh	Xlight FTP Server sshd	143	0.001
ssh	WRQ Reflection for Secure IT sshd	143	0.001
mongodb	MongoDB	141	0.001
ssh	Dell PowerConnect sshd	130	0.001
http	thttpd	115	0.001
http	Apache Tomcat/Coyote JSP engine	110	0.001
http	Boa HTTPd	107	0.001
http	Netwave IP camera http config	100	0.001
ssh	DrayTek Vigor 2820 ADSL router sshd	97	0.001
ftp	Xlight ftpd	94	0.001
ftp	DrayTek Vigor 2820 ADSL router ftpd	94	0.001
telnet	DD-WRT telnetd	87	0.001
openvpn	OpenVPN	82	0.001
telnet	Netgear broadband router or ZyXel VoIP adapter telnetd	81	0.001
telnet	Blue Coat telnetd	79	0.001
telnet	Draytek Vigor ADSL router telnetd	73	0.001
ssh	Foxit WAC Server sshd	73	0.001
ftp	TYPSoft ftpd	72	0.001
ftp	Synology DiskStation NAS ftpd	71	0.001
ftp	Balance Servers TCAdmin game hosting ftpd	70	0.0
ssh	PHP Universal sshd	66	0.0
ftp	Netgear broadband router or ZyXel VoIP adapter ftpd	66	0.0
http	Avtech AVN801 network camera	64	0.0
http	nginx	63	0.0
ftp	zFTPServer	62	0.0
ftp	DrayTek Vigor router ftpd	61	0.0
ftp	vsftpd (before 2.0.8) or WU-FTPD	60	0.0
telnet	Cisco IOS telnetd	59	0.0
telnet	Cisco 1721 router telnetd	56	0.0
ftp	oftpd	52	0.0
ssh	PSFTPd sshd	50	0.0
http	Hikvision-Webs	49	0.0
vnc	RealVNC Enterprise	48	0.0
ftp	WS FTPd	48	0.0
ftp	ACLogic CesarFTPd	45	0.0
ssh	VanDyke VShell	44	0.0
ssh	Digi CM sshd	43	0.0
http	uTorrent WebUI	40	0.0
http	PDR-M800	40	0.0
ftp	Quick 'n Easy ftpd	39	0.0
mysql	MySQL	38	0.0
http	Boa httpd	37	0.0
ssl	TLSv1	36	0.0
http	Sagem F@st router httpd	36	0.0
telnet	Netopia ADSL router telnetd	33	0.0
ftp	Sonic FTP Server	32	0.0
directconnect	Direct Connect P2P	32	0.0
smtp	Microsoft ESMTP	31	0.0
http	GeoVision GeoHttpServer for webcams	30	0.0
http	CCProxy	30	0.0
smtp		28	0.0
telnet	Microsoft Windows 2000 telnetd	27	0.0
http	mini_httpd	27	0.0
ftp	Microsoft IIS ftpd	26	0.0
ssh	RedLineNetworks sshd	25	0.0
http	uc-httpd	25	0.0
http	Allegro RomPager	25	0.0
vnc	RealVNC Personal	24	0.0
vnc		24	0.0
http	Intoto httpd	24	0.0
http	http server 1.0	24	0.0
ftp	GNU Inetutils FTPd	24	0.0
vnc	Apple remote desktop vnc	23	0.0
telnet	Dreambox media device telnetd	23	0.0
http	Mbedthis-Appweb	23	0.0
ssh	F-Secure WinNT sshd	22	0.0
smtp	Postfix smtpd	22	0.0
http	Gadspot/Avtech AV787 webcam http config	21	0.0
ftp	Tenor Multipath Switch ftpd	19	0.0
ftp	NET Disk/NetStore ftpd	19	0.0
ftp	Cerberus FTP Server	19	0.0
telnet	Cisco router telnetd	18	0.0
ftp	tnftpd	18	0.0
zebedee	Zebedee encrypted tunnel	17	0.0
ssh	Tasman router sshd	17	0.0
smtp	Microsoft Exchange smtpd	17	0.0
rsync		17	0.0
http	VNC Server Enterprise Edition	17	0.0
smtp	MDaemon smtpd	16	0.0
http	Rhinosoft Serv-U httpd	16	0.0
http	GoAhead-Webs embedded httpd	16	0.0
ftp	Nucleus ftpd	16	0.0
vnc-http	RealVNC	15	0.0
ssh	Paramiko Python sshd	15	0.0
http-proxy	CCProxy http proxy	15	0.0
http	Draytek Vigor ADSL router webadmin	15	0.0
ftp	WinFtpd	15	0.0
ftp	Titan ftpd	15	0.0
http-proxy	F5 BIG-IP load balancer http proxy	14	0.0
http	Microsoft ISA httpd	14	0.0
http	Httpd	14	0.0
http	Jetty	13	0.0
http	Cross Web Server	13	0.0
ftp	Treck Embedded ftpd	13	0.0
ftp	ALFTP	13	0.0
telnet	Microsoft Windows XP telnetd	12	0.0
svnserve	Subversion	12	0.0
ssl	Microsoft IIS SSL	12	0.0
http	AIM HTTP	12	0.0
vnc-http	VNC Server Enterprise Edition httpd	11	0.0
telnet	HP Integrated Lights-Out 2 remote configuration telnetd	11	0.0
http	DVR Systems webcam http interface	11	0.0
http	Buffalo AirStation http config	11	0.0
ftp	Guild ftpd	11	0.0
arcserve	ARCserve Discovery	11	0.0
telnet	BusyBox telnetd	10	0.0
telnet	BSD-derived telnetd	10	0.0
ssh	Netpilot config access	10	0.0
http	Transmission BitTorrent management httpd	10	0.0
http	GoAhead-Webs	10	0.0
ftp-proxy	UserGate ftpd	10	0.0
ftp	IBM OS/400 FTPd	10	0.0