Overview of services running on Port 8181 TCP.
~219 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 InfoOSDevicetypeCount Percent
sslSSLv36337528.822
httpMicrosoft IIS httpd6.0Windows3248614.774
http127595.803
httpMicrosoft IIS httpd118825.404
httpSun GlassFish2.1Servlet 2.596184.374
no match55392.519
ircDancer ircd40381.836
httpApache Tomcat/Coyote JSP engine1.136261.649
httpSonicWALLfirewall33241.512
httpIpswitch IMail Monitor web service8.22Windows29151.326
chatAIM or ICQ server22781.036
httpCTCFC1.019790.9
httpSun GlassFish2.1.1Servlet 2.517580.8
httpDD-WRT milli_httpdLinuxWAP16700.759
httpMicrosoft HTTPAPI httpd2.0SSDP/UPnPWindows16090.732
httpApache14720.669
httpMikroTik router config httpdRouterOSrouter12780.581
httpCherryPy httpd3.2.012170.553
httpAllegro RomPager4.51 UPnP/1.0ZyXEL ZyWALL 212020.547
httpNetwave IP camera http configwebcam10840.493
httpIpswitch IMail Monitor web service8.05Windows10750.489
httpSecure Computing Sidewinder firewall http adminfirewall10150.462
httpBoa HTTPd0.94.14rc2110050.457
httpIpswitch IMail web service8.15Windows10020.456
httpApache2.2.229370.426
httpGoAhead-Webs httpd9290.422
httpGeoVision GeoHttpServer for webcamswebcam9170.417
httpAvtech AVN801 network camera1.0UPnP 1.0webcam8390.382
httpApacheSSL-only mode7930.361
httplighttpd1.4.286380.29
httpAIM1.06300.287
httpuc-httpd1.0.06120.278
httpnginx6100.277
httpApache2.2.3(CentOS)6000.273
httpCross Web Server5730.261
remotingMS .NET Remoting services5480.249
httpMikroTik router http configrouter5460.248
httpTransmission BitTorrent management httpd5310.241
httplighttpd1.4.295080.231
httpise GmbH HTTP-Server v2.05080.231
httplighttpd1.4.195000.227
httpDraytek Vigor ADSL router webadminbroadband router4890.222
httpSagem F@st router httpdrouter4800.218
httplighttpd1.4.204780.217
httpVirata-EmWeb6.0.1Netscreen administrative web serverfirewall4660.212
httpApache2.2.34450.202
httpTransmission BitTorrent management httpdunauthorized4410.201
httpmini_httpd1.19 19dec20034400.2
upnpConexant-EmWeb6.1.0Billion 740- or 7400-series ADSL router UPnP; UPnP 1.0WAP4300.196
httpIntoto httpd1.04290.195
httpHikvision-Webs4290.195
httpBoa HTTPd0.93.154240.193
httplighttpd4100.186
httpApache2.2.143990.181
httpIpswitch IMail Monitor web service8.15Windows3810.173
httpUnknown0.0 UPnP3470.158
httpthttpd3260.148
httpD-Link DIR-300 WAP http adminWAP3230.147
sslTLS1.03060.139
httpVirata-EmWeb6.0.13020.137
httpBoa HTTPd0.94.132960.135
upnpConexant-EmWeb6.1.0UPnP 1.02930.133
httpIpswitch IMail web service8.22Windows2890.131
httpApache2.2.16(Debian)2740.125
httpnginx1.2.02700.123
http-proxySquid http proxy2.6.STABLE212620.119
httpwebcamXP.Lite2530.115
httpMicrosoft IIS httpd7.5Windows2520.115
httpIpswitch IMail Monitor web service7.07Windows2390.109
httpIpswitch IMail Monitor web service8.12Windows2330.106
httpIpswitch IMail web service8.05Windows2320.106
httpIpswitch IMail web service7.15Windows2270.103
httpHTTPD 1.0WayOS2130.097
httpthttpd2.25b2060.094
xml-rpcABYSS httpdXmlrpc-c 1.062040.093
httpApache1.3.362030.092
http-proxySymantec firewall http proxySimple, Secure Web Server 1.1firewall2020.092
httplighttpd1.4.302020.092
httpIndy httpd8.1.2.1759Paessler PRTG bandwidth monitorWindows2010.091
httpGoAhead-Webs embedded httpd1990.091
httpAllegro RomPager4.07 UPnP/1.0ZyXEL ZyWALL 21960.089
httpNetgear DG834G router http configrouter1950.089
httpIpswitch IMail Monitor web service8.03Windows1850.084
httpuTorrent utserver web interfaceLinux1790.081
httpeWON1790.081
httpIpswitch IMail Monitor web service12.5Windows1770.08
httpSonicWALL firewall http configfirewall1760.08
httpQNAP TS-219P NAS http config1.0storage-misc1740.079
httphttp server 1.01710.078
httpMbedthis-Appweb2.0.41700.077
httpApache2.2.161680.076
httpWindWeb2.0Home Gateway router http configbroadband router1670.076
httplighttpd1.4.261600.073
httpJetty6.1.x1490.068
httpGadspot/Avtech AV787 webcam http configwebcam1460.066
httpMicrosoft IIS httpd5.0Windows1430.065
telnet1420.065
httpDVR Systems webcam http interfacewebcam1410.064
httpApache2.2.14(Ubuntu)1360.062
httpIpswitch IMail Monitor web service8.21Windows1330.06
httpApache Tomcat/Coyote JSP engine1.1Tomcat 5.51280.058
httpSBox serverSBox Server1260.057
httpApache0.6.51260.057
http-proxyHaproxy http proxyload balancer1240.056
httpLinksys router http configdevice model BEFSX41WAP1240.056
httpNetgear DG834 router http configbroadband router1200.055
httpMicrosoft IIS httpd7.0Windows1160.053
httpBoa HTTPd0.94.111150.052
arcserveARCserve Discovery1140.052
httpDrcomServer1.01120.051
httpRouter1110.05
httpIpswitch IMail Monitor web service8.00Windows1110.05
httpMicrosoft IIS httpd5.1Windows1090.05
httpJetty8.0.y.z-SNAPSHOT1070.049
http-proxyOops! http proxyproxy server1060.048
httpEfangVHost Server1060.048
httpPDR-M8001.01050.048
httpIpswitch IMail Monitor web service7.13Windows1050.048
httpApache21050.048
http-proxyMikroTik http proxy1030.047
http-proxySquid http proxy1010.046
httpOpenDNS Guide1010.046
httpLinksys router http configdevice model BEFSR41WAP990.045
httpthttpdPanasonic BB-HCM511 IP camera http config980.045
httpHttpd1.0980.045
httpHTTPD 1.0910.041
sshprotocol 1.5900.041
xml880.04
httpuhttpd1.0.0Netgear WNDR3700 WAP http configWAP880.04
httpH3C-Miniware-Webs880.04
httpApache2.2.3(Red Hat)880.04
httpMiniWeb870.04
httpMicrosoft ISA httpdWindows870.04
httpIpswitch IMail Monitor web service8.20Windows870.04
httpApache1.3.42(Unix) PHP/5.2.14 with Suhosin-Patch870.04
upnpMicrosoft Windows UPnPWindows860.039
httpNcWebServer/1.3.37 (Unix) mod_ssl/2.8.28 OpenSSLNcWebServer/1.3.37 (Unix) mod_ssl/2.8.28 OpenSSLBypasswd850.039
httpNetgear WGR614v9 WAP http configWAP830.038
httpIpswitch IMail Monitor web service7.15Windows820.037
intermapperInterMapper network monitor810.037
httpthttpd2.25b 29dec2003810.037
httpNetgear DGN1000 router http configrouter810.037
http-proxyOops! http proxyAuthentication Required780.035
httpApache2.2.22(Ubuntu)780.035
httpTwistedWeb httpd8.2.0770.035
httpWindWeb2.0760.035
httpD-Link/Airlink IP webcam http config1.0webcam750.034
httpOracle XML DB Enterprise Edition httpd740.034
vncVNCprotocol 3.8720.033
sslMicrosoft IIS SSLWindows720.033
httpTP-LINK Router720.033
httpuTorrent WebUIWindows710.032
httpApache1.3.33(Unix) mod_ssl/2.8.22 OpenSSL/0.9.7a710.032
httpTP-LINK WR340G WAP http configWAP690.031
httpdcs-lig-httpd690.031
httpApache2.2.22(Unix)690.031
httpApache2.0.48(Unix) mod_perl/1.99_12 Perl/v5.8.2 DAV/2 PHP/4.3.4 FrontPage/5.0.2.2635 mod_vd/2.0 mod_jk/1.2.5 mod_ssl/2.0.48 OpenSSL/0.9.7c690.031
sslTLSv1680.031
httplighttpd1.4.23680.031
httpMS-SDK-HttpServer1.0670.03
httpIpswitch IMail Monitor web service6.06Windows670.03
httpNAI EPO Agent frameworkAgent ListenServer 1.0Windows660.03
httpApache2.2.15660.03
httphttpd 1.1650.03
httpNetgear or Linksys WAP http configWAP640.029
httpNETGEAR WNDR3400620.028
httpIpswitch IMail Monitor web service8.01Windows620.028
httpDigital Loggers Web Power Switch II http configpower-device620.028
httpApache2.0.55(Debian) PHP/5.1.2-1600.027
httpsiyou server590.027
httpIpswitch IMail Monitor web service8.13Windows590.027
httpApache2.2.15(CentOS)590.027
httpRouter Webserver580.026
httpNETGEAR DGN2200580.026
httpGnway Web Server580.026
httpGeneral User580.026
httpEmbedded HTTP ServerLinksys RVL200 VPN router http configrouter580.026
httpApachePreview580.026
httpuhttpd1.0.0Netgear wnr2000v3 WAP http configWAP570.026
httpHTTPD 1.00769560.025
httpApache2.0.59(Unix) mod_ssl/2.0.59 OpenSSL/0.9.8e-fips-rhel5 PHP/5.2.16 prxp_module/1.11.20560.025
httpNetgear FVS318 router http configrouter550.025
httpDD-WRT milli_httpdLinksys WRT54G http configLinuxWAP550.025
httpApache2.2.17(Ubuntu)550.025
httpuhttpd1.0.0Netgear WNDR3700v2 WAP http configWAP540.025
httpMiniServ0.01Webmin httpd540.025
httpJetty7.5.4.v20111024540.025
httpIndy8.0.22540.025
httpBoa httpd540.025
sshOpenSSH4.3protocol 2.0530.024
httpApache1.3.20(Unix) mod_ssl/2.8.4 OpenSSL/0.9.6a530.024
httpD-Link DCS-900 webcam http configwebcam520.024
httpRapidLogic httpd1.13Com OfficeConnect WAP http configWAP510.023
httpApache2.0.53(Win32) PHP/4.3.9510.023
httpJetty7.3.0.v20110203500.023
httpGoAhead-Webs httpdOvislink WAP http configWAP500.023
httpwebserver1.0490.022
httpNetgear WGR614v7 WAP http configWAP490.022
httpJetty6.1.25490.022
httphttpd490.022
httpTP-LINK WR740N WAP http configWAP480.022
httpthttpd2.20c 21nov01480.022
httpCisco IOS http configIOS480.022
httpApache1.3.33(Unix) PHP/4.4.0480.022
ftpMicrosoft ftpdWindows480.022
httpWaveplus HTTPD470.021
http-proxySquid http proxy3.0.STABLE25470.021
http-proxySquid http proxy2.7.STABLE9470.021
httpHTTPServer470.021
httpDreambox httpdmedia device460.021
httpApache1.3.36(Unix) mod_fastcgi/2.4.6 mod_perl/1.29 PHP/4.4.7 FrontPage/5.0.2.2634 mod_ssl/2.8.27 OpenSSL/0.9.8a460.021
httpNetgear DG834GT router http configrouter450.02
httpMilestone XProtect video surveillance http interfaceen-USwebcam450.02
httpApache Tomcat/Coyote JSP engine1.0450.02
httpNETGEAR WGR614v10440.02
httpJetty440.02
httpTridium Niagara httpd1.1specialized430.02
httpNetgear WNR3500L WAP http configWAP430.02
httpApache2.2.8(Win32) PHP/5.2.6430.02
httpTRENDnet TV-IP100 or TV-IP110 webcam display httpdwebcam420.019
httpMicrosoft-HTTPAPI1.0420.019
httpIpswitch IMail Monitor web service8.10Windows420.019
httpApache2.2.0(Fedora)420.019
httpSAP Message Server httpdrelease 700410.019
httpLinksys router http configdevice model BEFVP41WAP410.019
httpLinksys PAP2 VoIP http configVoIP adapter400.018
httpImagine Reloaded betaSBox Server400.018
httpFVG318400.018
socks-proxySocks4A390.018
httpGoAhead-Webs httpdRouter with realtek 8181 chipset http configrouter390.018
httpGM Streaming Server httpdwebcam390.018
httpBuffalo AirStation http configWAP390.018
httpApache2.2.9(Debian)390.018
httpnginx0.8.54380.017
httpNetgear WNR2000v2 WAP http configWAP380.017
httpAvamar380.017
httpApache2.2.22(Unix) PHP/5.3.10380.017
httpWebServer(IPCamera_Logo)370.017
httpTechno Vision Security System http config2.0webcam370.017
http-proxySquid http proxy3.1.19370.017
httpBenQ projectorCrestron RoomViewmedia device370.017
httpApache2.2.16(Ubuntu)370.017
httpApache2.0.52370.017
rtspAvtech MPEG4 DVR control rtspd360.016
httpWebs360.016
httpUbicom1.1360.016
httpNetgear DG834 router http configrouter360.016
httpmind_innovation360.016
httpLotus Domino httpd360.016
httpLinksys router http configdevice model BEFSR41v3WAP360.016
httpJetty6.0.2360.016
httpAirlink 101 or TRENDnet TVIP-422w webcam http configwebcam360.016
httpwebcamXP httpd5Windows350.016
httpnginx1.0.5350.016
httpNetgear WNR1000v3 WAP http configWAP350.016
httpApache2.2.20(Ubuntu)350.016
shoutcast-publishingSHOUTcast publishing port340.015
httpTRENDnet TV-IP110w or TV-IP422W webcam display httpdwebcam340.015
httpQNAP TS-109-II NAS http config1.0storage-misc340.015
httpNETGEAR DG834Gv5340.015
httpMicrosoft Windows Media Server9.01.01.5001Windows340.015
httpJetty6.1.26340.015
httpGoAhead-Webs httpdLogiLink WC0002B webcam http config340.015
httpBoa HTTPd0.94.14rc18340.015
httpWorld Client WDaemon httpd4.0Alt-N MDaemon webmailWindows330.015
httplighttpd1.4.13330.015
httpApache2.2.6(Fedora)330.015
httpApache2.2.14(Win32) DAV/2 mod_ssl/2.2.14 OpenSSL/0.9.8l mod_autoindex_color PHP/5.3.1 mod_apreq2-20090110/2.7.1 mod_perl/2.0.4 Perl/v5.10.1330.015
httpApache2.2.14(Unix)330.015
httpTP-LINK WR841N WAP http configWAP320.015
httpRWAPM X-Server 32bit Apache2.2.10 (Win32) PHP320.015
httpIpswitch IMail Monitor web service8.02Windows320.015
httpiBoot320.015
httpApache2.2.20320.015
httpTP-LINK WR941N WAP http configWAP310.014
httpFnord httpd1.9310.014
httpApache2.2.3(Unix) PHP/5.1.4 mod_ssl/2.2.3 OpenSSL/0.9.8b FrontPage/5.0.2.4803310.014
httpADH-Web httpdDedicated Micros Digital Sprite 2 DVR http configmedia device310.014
httpJettynull (Windows 2003 5.2 x86)300.014
httpIpswitch IMail Monitor web service5.05Windows300.014
httpIpswitch IMail Monitor web service4.10Windows300.014
httpIP_SHARER WEB1.0Belkin 2307 wifi router http configWAP300.014
httpD-Link DI-524 http configWAP300.014
httpBoa HTTPd0.92o300.014
httpApache2.2.17300.014
rtsp290.013
httpthttpd2.19-MX Jul 1 2010WAP290.013
httpApache2.2.15(Fedora)290.013
httpApache2.2.15(Debian)290.013
httpOwnServer1.0280.013
httpLinksys router http configdevice model BEFSR41v4WAP280.013
httpIceWarp webmail httpd8.3280.013
httpHP Integrated Lights-Out http configremote management280.013
httpD-Link DI-804HV http configWAP280.013
httpCitrix Metaframe ICA Browser280.013
httpApache1.3.41(Unix) FrontPage/5.0.2.2635 PHP/4.4.9 mod_ssl/2.8.31 OpenSSL/0.9.7a280.013
httpTP-LINK WR541G/542G WAP http configWAP270.012
http-proxy3Proxy http proxy270.012
httpNETGEAR WNDR4000270.012
httpNEC Electra Elite IPK II WebPro270.012
httpMicrosoft HTTPAPI httpd1.0SSDP/UPnPWindows270.012
sslmulti-vendor SSL260.012
ircUnreal ircd260.012
httpWPN824v2260.012
httpnginx0.7.67260.012
httpnginx0.7.65260.012
httpIpswitch IMail Monitor web service4.07Windows260.012
httpHTTPD 1.0FF0769260.012
httpHTTPD 1.0F0769260.012
httpGrandstream HT502 VoIP router http configVoIP adapter260.012
httpD-Link router/Airlink NAS http config260.012
httpD-Link DCS-920 webcam http configwebcam260.012
httpApache2.2.21(Win32) mod_ssl/2.2.21 OpenSSL/1.0.0e PHP/5.3.8 mod_perl/2.0.4 Perl/v5.10.1260.012
httpXBMC Web Media ManagerLinuxmedia device250.011
httpWebFS httpd1.21250.011
httpnginx0.8.44250.011
httpMobotix Camera http configwebcam250.011
httpJetty7.4.5.v20110725250.011
httpJetty7.4.5.fuse20111017250.011
httpHTTPD 1.0secnet250.011
httpHAProxy Statistics250.011
httpApache2.2.9PHP/5.2.6-1+lenny16 with Suhosin-Patch mod_ssl/2.2.9 OpenSSL/0.9.8g mod_perl/2.0.4 Perl/v5.10.0250.011
httpApache1.3.33250.011
ftp250.011
httpWGT624v3240.011
httpSun GlassFish Open Source Edition3.1.1JSP 2.2; Servlet 3.0; Java 1.6240.011
httpNETGEAR WNDR3300240.011
httpNetgear DGN2000 router http configrouter240.011
httpTornado230.01
httpSpeedr0.8.0230.01
httpNetgear230.01
httpApache2.2.14(CentOS)230.01
ftpvsftpd2.0.8 or later230.01
httpWYM httpd1.0220.01
httpWinstone Servlet Engine0.9.10Servlet 2.5220.01
httpuhttpd1.0.0Netgear WNR1000v2 WAP http configWAP220.01
httpSwitch220.01
httpNETGEAR WNDR3400v2220.01
httpNetgear DG834PN router http configrouter220.01
httpNetgear DG834 FR WAP http configFrenchWAP220.01
httpMultView WEB Server V1.1220.01
httpKerio MailServer http config220.01
httpHttpFileServer httpd2.2fWindows220.01
httpESET NOD32 anti-virus update httpdWindows220.01
httpDrayTek Vigor 3300 router http configrouter220.01
httpDavid WebBox httpd11.00a.0717220.01
httpBoa HTTPd0.94.14rc18-ipcam220.01
httpApache2.0.63mod_ssl/2.0.63 OpenSSL/0.9.8e-fips-rhel5 mod_auth_passthrough/2.1 mod_bwlimited/1.4 FrontPage/5.0.2.2635220.01
httpApache1.3.41220.01
httpantid220.01
httpVirgin Super Hub media player http configmedia device210.01
httpTP-LINK RouterTP-LINK Router R478210.01
httpNetgear CVG834G cable modem http configbroadband router210.01
httpLuCI Lua http config210.01
httpLinksys BEFVP41 V2210.01
httpD-Link DCS-910 webcam http configwebcam210.01
httpChipPC Extreme httpdWinCE 4.20Windows210.01
vncRealVNC Personalprotocol 4.0200.009
httpZimbra http config200.009
httpVMware ESXi Server httpd200.009
httpNETGEAR WNDR3700v3200.009
httpNetgear DG834 http configbroadband router200.009
httpMono-HTTPAPI1.0200.009
httpLinksys BEFSR41/BEFSR11/BEFSRU31200.009
httplighttpd1.4.18200.009
httpIP_SHARER WEB1.0Airlink/Sitecom wireless routerrouter200.009
httpIndy9.0.11200.009
httpGoldStar iPECS 50B PBX http configPBX200.009
httpCCcam card sharing system http config200.009
httpApache2.3.8(Unix) mod_ssl/2.3.8 OpenSSL/1.0.0c200.009
httpApache2.2.9PHP/5.2.6-1+lenny10 with Suhosin-Patch mod_ssl/2.2.9 OpenSSL/0.9.8g200.009
httpApache2.2.8200.009
httpApache2.2.21mod_ssl/2.2.21 OpenSSL/0.9.8m DAV/2 mod_auth_passthrough/2.1 mod_bwlimited/1.4 FrontPage/5.0.2.2635200.009
httpApache2.2.0200.009
httpApache2.0.52(CentOS)200.009