Overview of services running on Port 731 TCP.
~4 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
chatAIM or ICQ server148832.418
no match-/-86418.824
httplighttpd63513.834
http4479.739
httpMicrosoft IIS httpd2044.444
httpthttpd1162.527
httpMicrosoft HTTPAPI httpd952.07
ssh901.961
sshOpenSSH611.329
telnet501.089
vncVNC491.068
httpBoa HTTPd481.046
arcserveARCserve Discovery290.632
ftpMicrosoft ftpd220.479
ftpFileZilla ftpd210.458
mysqlMySQL200.436
smtpMicrosoft ESMTP170.37
httpnginx160.349
ftp150.327
ftpPure-FTPd120.261
ftpProFTPD120.261
httpGeoVision GeoHttpServer for webcams110.24
vtunVtun Virtual Tunnel100.218
smtp100.218
httpPanasonic webcam http config100.218
ftpvsftpd (before 2.0.8) or WU-FTPD100.218