Overview of services running on Port 3940 TCP.
~10 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
irc	Dancer ircd	3525	34.058
eggdrop	Eggdrop IRC bot console	1817	17.556
chat	AIM or ICQ server	1458	14.087
no match	-/-	1089	10.522
http	lighttpd	839	8.106
http		463	4.473
http	Microsoft IIS httpd	173	1.671
http	thttpd	119	1.15
ssh		86	0.831
http	Microsoft HTTPAPI httpd	81	0.783
http	Boa HTTPd	50	0.483
vnc	VNC	47	0.454
telnet		46	0.444
ssh	OpenSSH	46	0.444
arcserve	ARCserve Discovery	31	0.3
http	WangWnagSimpleServer	29	0.28
ftp	Microsoft ftpd	26	0.251
nntp	INN nntpd	22	0.213
mysql	MySQL	22	0.213
smtp	Microsoft ESMTP	16	0.155
http	nginx	15	0.145
http	GeoVision GeoHttpServer for webcams	14	0.135
ftp	Pure-FTPd	12	0.116
ftp	FileZilla ftpd	12	0.116
ftp		12	0.116
ftp	ProFTPD	11	0.106
smtp		10	0.097
http	Panasonic webcam http config	10	0.097