Overview of services running on Port 445 TCP.
~418 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
netbios-ssn		187810	44.839
microsoft-ds	Microsoft Windows XP microsoft-ds	56436	13.474
http	thttpd	51257	12.238
microsoft-ds	Microsoft Windows 2003 or 2008 microsoft-ds	39196	9.358
netbios-ssn	Samba smbd	33693	8.044
netbios-ssn	Microsoft Windows 98 netbios-ssn	18651	4.453
no match	-/-	9793	2.338
ssl	SSLv3	6074	1.45
http		5010	1.196
http	Apache	4086	0.976
microsoft-ds	Microsoft Windows 2000 microsoft-ds	1748	0.417
chat	AIM or ICQ server	1362	0.325
microsoft-ds	Dionaea honeypot smbd	838	0.2
http	SonicWALL	692	0.165
http	AIM	325	0.078
netbios-ssn	Konica Minolta bixhub 350 printer smbd	186	0.044
ssh	OpenSSH	136	0.032
http	lighttpd	114	0.027
routersetup	Nortel/D-Link router instant setup	111	0.027
http	Microsoft IIS httpd	103	0.025
http	nginx	89	0.021
microsoft-ds	Xerox WorkCentre 5225 printer microsoft-ds	78	0.019
ssh		65	0.016
http	GoAhead-Webs httpd	63	0.015
http	Microsoft HTTPAPI httpd	53	0.013
microsoft-ds	Xerox printer microsoft-ds	43	0.01
ssl	TLS	36	0.009
telnet		35	0.008
http	Netwave IP camera http config	30	0.007
http	Apache Tomcat/Coyote JSP engine	30	0.007
vnc	VNC	25	0.006
http	Boa HTTPd	25	0.006
http	Avtech AVN801 network camera	24	0.006
ssl	Microsoft IIS SSL	23	0.005
http	GoAhead-Webs	23	0.005
arcserve	ARCserve Discovery	22	0.005
socks5		21	0.005
netbios-ssn	Network Appliance Ontap smbd	18	0.004
xml		16	0.004
mysql	MySQL	13	0.003
smtp		12	0.003
http-proxy	Squid http proxy	12	0.003
ssl	TLSv1	11	0.003
directconnect	Direct Connect P2P	11	0.003
smtp	Microsoft Exchange smtpd	10	0.002
http	Sun ONE Web Server	10	0.002
ftp	Pure-FTPd	10	0.002
ftp		10	0.002