Overview of services running on Port 1981 TCP.
~21 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
no match-/--/-1358961.886
ircDancer ircd272012.387
dominoconsoleLotus Domino Console16407.469
chatAIM or ICQ server9784.454
irc-proxypsyBNC2.3.2-92991.362
httplighttpd1.4.192721.239
sshOpenSSH4.32331.061
http2160.984
Sangfor-AC-3.3.0.56 build 2011-01-17/19"19591980.902
SP_LFD build:2012-05-22; description: "00 update"12001370.624
httpWangWnagSimpleServer1.01360.619
irc-proxypsyBNC2.3.2-71240.565
httpMicrosoft IIS httpd1240.565
telnet920.419
httpMicrosoft HTTPAPI httpd2.0860.392
Sangfor--SG-3.3.0.56 build 2011-01-17/19"1959770.351
ssh640.291
vncVNC480.219
ftp380.173
M5x00-Sangfor-AC-3.5.0.123 updated 2011-01-05/23"1936300.137
sshOpenSSH5.1p1 Debian 5290.132
sshOpenSSH5.3280.128
sshOpenSSH5.5p1 Debian 6+squeeze2260.118
sshOpenSSH5.3p1 Debian 3ubuntu7210.096
ftpMicrosoft ftpd210.096
arcserveARCserve Discovery200.091
nntpINN nntpd190.087
httpBoa HTTPd0.94.14rc21190.087
sshOpenSSH5.8150.068