Overview of services running on Port 9091 TCP.
~89 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	-/-	64373	71.595
http	Microsoft HTTPAPI httpd	4821	5.362
irc	Dancer ircd	4060	4.515
telnet	Cisco router telnetd	3816	4.244
http	rhttpd	2951	3.282
chat	AIM or ICQ server	2142	2.382
telnet	Cisco IOS telnetd	1102	1.226
ssl	TLS	874	0.972
telnet		860	0.956
http		858	0.954
telnet	Cisco 1721 router telnetd	767	0.853
http	Microsoft IIS httpd	692	0.77
http	lighttpd	408	0.454
ssh	OpenSSH	322	0.358
http	Jetty	191	0.212
http	Boa HTTPd	179	0.199
http	nginx	122	0.136
ssh		119	0.132
vnc	VNC	89	0.099
remoting	MS .NET Remoting services	69	0.077
ftp	Microsoft ftpd	64	0.071
arcserve	ARCserve Discovery	61	0.068
http	Secure Computing Sidewinder firewall http admin	52	0.058
http	IBM WebSphere Application Server	42	0.047
mysql	MySQL	40	0.044
ftp		40	0.044
http	httpd 1.1	28	0.031
http	MS .NET Remoting httpd	26	0.029
vnc	RealVNC Enterprise	24	0.027
ssh	Dropbear sshd	24	0.027
http	MS .NET Remoting	21	0.023
smtp	Microsoft ESMTP	20	0.022
ftp	Pure-FTPd	20	0.022
ftp	ProFTPD	20	0.022
socks-proxy	Socks4A	19	0.021
http	micro_httpd	19	0.021
http	MiniServ	18	0.02
ftp	vsftpd	18	0.02
ftp	FileZilla ftpd	18	0.02
http	D-Link router/Airlink NAS http config	16	0.018
http	thttpd	15	0.017
directconnect	Direct Connect P2P	15	0.017
xml		14	0.016
socks5		13	0.014
vnc	RealVNC Personal	12	0.013
vnc		12	0.013
http	Ubicom	11	0.012
http	Router	11	0.012
ftp	Dreambox ftpd	11	0.012
smtp		10	0.011
secure-socket	CA Secure Socket Adapter	10	0.011
msrpc	Microsoft Windows RPC	10	0.011
http	Zeus httpd	10	0.011
http	Motion Camera httpd	10	0.011
ftp	Serv-U ftpd	10	0.011