Overview of services running on Port 990 TCP.
~304 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
sslSSLv326225286.027
httpnginx1.0.699663.269
http60191.974
no match-/--/-27690.908
httpSonicWALL23820.781
chatAIM or ICQ server19600.643
ftpvsftpd2.0.8 or later18530.608
ftpFileZilla ftpd15900.522
ftpProFTPD14370.471
ftp14190.465
ftpServ-U ftpd11.07540.247
ftpServ-U ftpd11.25880.193
ftpServ-U ftpd10.55690.187
ftpServ-U ftpd12.05570.183
sslMicrosoft IIS SSL4370.143
ftpServ-U ftpd11.14200.138
sslTLSv14010.132
httplighttpd1.4.193850.126
httpAIM1.03750.123
ftpServ-U ftpd11.33650.12
ftpServ-U ftpd10.23500.115
ftpServ-U ftpd8.03170.104
httplighttpd1.4.293080.101
ftpGene6 ftpd3.10.0 build 22590.085
ftpServ-U ftpd10.02570.084
ftpServ-U ftpd9.42460.081
ftpServ-U ftpd10.41920.063
ftpServ-U ftpd1840.06
ftpServ-U ftpd9.31820.06
ftpServ-U ftpd7.31790.059
ftpPure-FTPd1780.058
ftpServ-U ftpd10.31730.057
ftpProFTPD1.3.3c1730.057
ftpFileZilla ftpd0.9.37 beta1360.045
ftpFileZilla ftpd0.9.40 beta1330.044
ftpFileZilla ftpd0.9.41 beta1300.043
ftpServ-U ftpd7.21250.041
ssh1180.039
httpMicrosoft HTTPAPI httpd2.01160.038
httpMicrosoft IIS httpd1150.038
httpGoAhead-Webs httpd1120.037
ftpServ-U ftpd7.41090.036
httpMicrosoft IIS httpd6.01030.034
sslTLS1.0960.031
ftpvsftpd920.03
ftpServ-U ftpd7.0850.028
ftpServ-U ftpd10.1840.028
ftpMicrosoft ftpd820.027
ftpServ-U ftpd9.0780.026
httpthttpd2.24710.023
ftpServ-U ftpd8.2700.023
ftpProFTPD1.3.3d670.022
ftpSynology DiskStation NAS ftpd650.021
ftpGene6 ftpd3.9.0 build 2640.021
ftpFileZilla ftpd0.9.39 beta640.021
httpApache Tomcat/Coyote JSP engine1.1630.021
ftpProFTPD1.3.4a630.021
ftpProFTPD1.3.3a600.02
ftpvsftpd (before 2.0.8) or WU-FTPD590.019
ftpServ-U ftpd7.1590.019
httphttpd550.018
httpNetwave IP camera http config540.018
ftpProFTPD1.3.1540.018
telnet500.016
httpApache480.016
httpAvtech AVN801 network camera1.0470.015
ftpProFTPD1.3.2470.015
vncVNC440.014
ftpServ-U ftpd9.1430.014
ftpGene6 ftpd3.6.0 build 23410.013
httplighttpd380.012
ftpServ-U ftpd9.2380.012
ftpProFTPD1.3.0370.012
ftpProFTPD1.3.3g360.012
arcserveARCserve Discovery340.011
httpPDR-M8001.0320.01
ftpServ-U ftpd6.4320.01
ftpGene6 ftpd3.8.0 build 34320.01
http-proxySquid http proxy2.6.STABLE12310.01
httpFastReport Server300.01
httpBoa HTTPd0.94.14rc21280.009
httpApache2.2.14280.009
httpApache2.2.3260.009
httpthttpd2.25b240.008
sshWeOnlyDo sshd2.1.3220.007
sshWeOnlyDo sshd2.3.6.165210.007
sshOpenSSH4.3210.007
http-proxySquid http proxy2.7.STABLE9210.007
ftpProFTPD1.3.3210.007
httpthttpd200.007
httpApache2.2.22200.007
ftpProFTPD1.3.2c200.007
ftpFileZilla ftpd0.9.34 beta200.007
httpHikvision-Webs190.006
ftpServ-U ftpd6.3190.006
sshSrSshServer1.00180.006
ftpGene6 ftpd3.5.0 build 10170.006
httpuc-httpd1.0.0160.005
httpmini_httpd1.19 19dec2003160.005
ftpFileZilla ftpd0.9.31 beta160.005
httpuTorrent WebUI150.005