Overview of services running on Port 2401 TCP.
~27 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 Version Count Percent
cvspservercvs pserver1091339.45
ircDancer ircd365213.202
telnetCisco IOS telnetd21907.917
http20327.346
no match-/--/-15975.773
chatAIM or ICQ server14765.336
telnet13915.028
cvspserverCVSNT cvs pserver12324.454
httplighttpd1.4.193471.254
httpMicrosoft IIS httpd1770.64
telnetCisco 1721 router telnetd1710.618
httpGoAhead-Webs httpd1650.596
httpGateway-Webs1420.513
httpMicrosoft HTTPAPI httpd2.01230.445
httpWangWnagSimpleServer1.01200.434
ssh920.333
vncVNC820.296
httpthttpd2.24770.278
tcpwrappedBSD TCP Wrappers370.134
httpApache Tomcat/Coyote JSP engine1.1370.134
arcserveARCserve Discovery350.127
httpthttpd2.25b330.119
httpBoa HTTPd0.94.14rc21290.105
ftpMicrosoft ftpd260.094
telnetCisco router telnetd250.09
nntpINN nntpd250.09
cvspserverSunOS cvs pserver250.09
httpHikvision-Webs240.087
smtpMicrosoft Exchange smtpd6.0.3790.1830200.072
httpApache2.2.3200.072
httpthttpd190.069
achatAChat chat system190.069
sslTLS1.0150.054
ftpvsftpd2.0.8 or later150.054
bittorrentBittorrent P2P client150.054