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Other Sites with related tables (many were the source for
this one)
Standard Port Usage list (any system):
http://www.isi.edu/in-notes/iana/assignments/port-numbers
Help With Port Forwarding and Router Setups
http://www.portforward.com/
List of Linux port/trojan attack points:
http://www.linux-firewall-tools.com/linux/ports.html
Trojan Port Lists and Information (Windows Oriented):
http://www.simovits.com/nyheter9902.html
http://www.sys-security.com/html/papers/trojan_list.html
http://www.commodon.com/threat/threat-ports.htm
http://www.netice.com/Advice/Exploits/Ports/default.htm
Could this be a Hoax?
Virus and Trojan Myth Information
Hoax Busters Site
Kahl Site
Snopes Hoax Info Site
F-Secure Hoax Information
This list was built from several sources from various Internet Security
oriented sites. It is not a complete list, but does list over 400 ports
that are known to be used by various Trojans. The table is oriented toward
attacks of Windows based systems. Where a Transport entry is
"???" it means that either the source did not specify the type of
transport, or it could be either TCP or UDP.
If it is not in this list, try the "SUSPECT PORT" List - Has Ports
Used by many Trojans and Viruses Listed:
Suspect
Port List
| Port | Transport | Possible Legitimate Use(s) |
| 3 | ??? | Valid use - Game: F22 |
| 5 | TCP | Valid use - Apple Remote Desktop |
| 22 | TCP | Valid use - AudioReQuest |
| 22 | UDP | Valid Use - pcAnywhere Host, AudioReQuest |
| 30 | TCP | Valid use - ATC Battlefield 1942, ATC Ghost Recon 2, ATC Splinter Cell Chaos Theory, ATC Splinter Cell Pandora Tomorrow |
| 30 | UDP | Valid use - ATC Battlefield 1942, ATC Ghost Recon 2, ATC Splinter Cell Chaos Theory, ATC Splinter Cell Pandora Tomorrow |
| 47 | TCP | Valid use - Battlefield VietNam |
| 57 | TCP | Valid use - AudioReQuest |
| 57 | UDP | Valid use - AudioReQuest |
| 80 | TCP | Valid Use - Game: Aliens vs. Predator. Other: Dialpad, Yahoo File Transfer, BarracudaDrive, Battlefield 2 |
| 80 | UDP | Valid use - AudioReQuest |
| 111 | TCP | Valid use - Battlefield VietNam |
| 123 | UDP | Valid Use - Network Time Protocol |
| 177 | UDP | Valid Use - Battle Realms-Ubisoft |
| 300 | TCP | Valid use - Age of Empires III |
| 328 | TCP | Valid use - Apple Remote Desktop |
| 359 | TCP | Valid use - Apple Remote Desktop |
| 367 | UDP | Valid use - Aleph One |
| 389 | ??? | Valid use - PGP Automatic Verification. |
| 422 | UDP | Valid use - Aleph One |
| 443 | TCP | Valid use - BarracudaDrive |
| 466 | TCP | Valid use - Battlefield VietNam |
| 471 | UDP | Valid Use - Battle Realms-Ubisoft |
| 500 | ??? | Valid use - PGP use, also other SSL encryption programs, Bay VPN (TCP & UDP) |
| 515 | ??? | Valid use - Unix Printer Spooler. |
| 554 | TCP | Valid Use - QuickTime 4 Client or RealAudio |
| 615 | UDP | Valid use - Aleph One |
| 717 | UDP | Valid Use - Battle Realms-Ubisoft |
| 728 | TCP | Valid use - Battlefield VietNam |
| 757 | UDP | Valid Use - Battle Realms-Ubisoft |
| 799 | TCP | Valid Use - Remotely Possible Server |
| 802 | TCP | Valid use - Age of Empires III |
| 900 | TCP | Valid use - Battlefield VietNam |
| 988 | TCP | Valid use - Apple Remote Desktop |
| 1024 - 1124 | TCP | Valid use - Battlefield 2 |
| 1024 - 1124 | UDP | Valid use - Battlefield 2 |
| 1024 - 5000 | TCP and UDP | Valid use - AIM Video IM |
| 1140 | TCP | Valid use - Dwyco Video Conferencing or Westwood Online - C&C Tiberian Sun, Dune 2000 |
| 1214 | TCP | Valid use - Dwyco Video Conferencing or Morpheus or Kazaa File Sharing |
| 1234 | TCP | Valid use - Dwyco Video Conferencing or Westwood Online - C&C Tiberian Sun, Dune 2000 |
| 1352 | TCP | Valid use - Dwyco Video Conferencing or Lotus Notes Host |
| 1414 | UDP | Valid use - CuSeeMe or Dwyco Video Conferencing |
| 1424 | UDP | Valid use - CuSeeMe or Dwyco Video Conferencing |
| 1500 - 4999 | UDP | Valid use - Battlefield 2 |
| 1503 | TCP | Valid use - CuSeeMe or Dwyco Video Conferencing |
| 1547 | TCP | Valid Use - Laplink Host or Dwyco Video Conferencing |
| 1584 | TCP | Valid use - Dialpad or Dwyco Video Conferencing |
| 1585 | TCP | Valid use - Dialpad or Dwyco Video Conferencing |
| 1680 | TCP | Valid use - Dwyco Video Conferencing or CarbonCopy v5.0 |
| 1716 | UDP | Valid use - America's Army |
| 1717 | UDP | Valid use - America's Army |
| 1718 | UDP | Valid use - America's Army |
| 1720 | TCP | Valid use - CuSeeMe or Dwyco Video Conferencing |
| 1812 | UDP | Valid use - CuSeeMe or Dwyco Video Conferencing |
| 1813 | UDP | Valid use - CuSeeMe or Dwyco Video Conferencing |
| 1863 | TCP | Valid use - Dwyco Video Conferencing or MSN Messenger |
| 2090 | TCP | Valid use - Go2Call or Dwyco Video Conferencing or DynSite Updates |
| 2091 | TCP | Valid use - Go2Call or Dwyco Video Conferencing |
| 2233 | TCP | Valid use - Shiva VPN or Dwyco Video Conferencing |
| 2346 | TCP | Valid Use - (game) Rainbow Six or Rogue Spear or Dwyco Video Conferencing |
| 2300 - 2400 | ??? | Valid Use - Age of Empires, Age of Empires II
(2300-2400 TCP and UDP and 47624 TCP) Age of Empires III (2300-2310 UDP) Alien vs Predator (UDP and TCP) Battlecom (UDP and TCP) |
| 3000 | TCP | Valid use - Dwyco Video Conferencing or Active Worlds File Transfers or Calista IP Phone (UDP in) |
| 3333 | TCP and UDP | Valid use - ATC Battlefield 2, ATC Rainbow Six Lockdown |
| 3389 | TCP | Valid use - Dwyco Video Conferencing or Windows 2000 Terminal Server |
| 3453 | TCP | Valid use - Dwyco Video Conferencing or (games) Bungie.net, Myth, Myth II Server |
| 3568 | TCP | Valid use - Dwyco Video Conferencing or (game) Delta Force |
| 3660 | TCP | Valid use - AudioReQuest |
| 3660 | UDP | Valid use - AudioReQuest |
| 3663 | TCP | Valid use - AudioReQuest |
| 3663 | UDP | Valid use - AudioReQuest |
| 3823 | UDP | Valid use - Apple Remote Desktop |
| 3996 | TCP | Valid use - Dwyco Video Conferencing or Remote Anything |
| 3997 | TCP | Valid use - Dwyco Video Conferencing or Remote Anything |
| 3998 | TCP | Valid use - Dwyco Video Conferencing or Remote Anything |
| 3999 | TCP | Valid use - Dwyco Video Conferencing or Remote Anything |
| 4000 | TCP | Valid use - Dwyco Video Conferencing or Remote Anything or (games) Westwood Online - C&C Tiberian Sun, Dune 2000, ICQ. |
| 4099 | TCP | Valid use - Dwyco Video Conferencing or AIM Talk (out) |
| 4226 | TCP | Valid use - Aleph One |
| 4444 | TCP | Valid use - Dwyco Video Conferencing or Napster Directory Server |
| 4555 | UDP | Valid use - Battlefield Vietnam |
| 4556 | UDP | Valid use - Battlefield Vietnam |
| 4557 | UDP | Valid use - Battlefield Vietnam |
| 4660 | TCP | Valid use - Dwyco Video Conferencing or Voice-On-Net |
| 4661 | TCP | Valid use - Dwyco Video Conferencing or Voice-On-Net |
| 4662 | TCP | Valid use - Dwyco Video Conferencing or Voice-On-Net |
| 4663 | TCP | Valid use - Dwyco Video Conferencing or Voice-On-Net |
| 4664 | TCP | Valid use - Dwyco Video Conferencing or Voice-On-Net |
| 4665 | TCP | Valid use - Dwyco Video Conferencing or Voice-On-Net, AudioReQuest |
| 4665 | UDP | Valid use - AudioReQuest |
| 4666 | TCP | Valid use - Dwyco Video Conferencing or Voice-On-Net |
| 4667 | TCP | Valid use - Dwyco Video Conferencing or Voice-On-Net |
| 4668 | TCP | Valid use - Dwyco Video Conferencing or Voice-On-Net |
| 4669 | TCP | Valid use - Dwyco Video Conferencing or Voice-On-Net |
| 4670 | TCP | Valid use - Dwyco Video Conferencing or Voice-On-Net |
| 4747 | TCP | Valid use - Apprentice |
| 4871 | ??? | Valid use - 3-in-a-Bed |
| 4899 | TCP | Valid use - Dwyco Video Conferencing or Radmin (Fama Tech) |
| 5000 - 5010 | UDP | Valid use - Yahoo Voice Chat |
| 5001 | TCP | Valid Use - (game) Ultima |
| 5002 | TCP | Valid Use - (game) Ultima |
| 5003 | TCP | Valid Use - (game) Ultima |
| 5004 | TCP | Valid Use - (game) Ultima |
| 5005 | TCP | Valid Use - (game) Ultima |
| 5006 | TCP | Valid Use - (game) Ultima |
| 5007 | TCP | Valid Use - (game) Ultima |
| 5008 | TCP | Valid Use - (game) Ultima |
| 5009 | TCP | Valid Use - (game) Ultima |
| 5010 | TCP | Valid Use - (game) Ultima |
| 5050 | ??? | Valid use - Yahoo Messenger |
| 5100 | TCP | Valid use - Yahoo Super Webcam |
| 5101 | TCP | Valid use - Yahoo P2P Instant Messages |
| 5190 | TCP | Valid use - AIM Talk [AOL IM] (in) or Calista IP Phone (out). |
| 5222 | TCP | Valid Use - KaVoom! (software KVM) |
| 5310 | ??? | Valid Use - (game) Outlaws |
| 5424 | TCP | Valid use - Beyond Remote |
| 5424 | UDP | Valid use - Beyond Remote |
| 5497 | ??? | Valid use - Hotline Connect |
| 5498 | ??? | Valid use - Hotline Connect |
| 5500 | TCP | Valid Use - Virtual Network Computing (VNC) or Hotline Connect |
| 5501 | ??? | Valid use - Hotline Connect |
| 5555 | ??? | Valid use - Napster directory server. |
| 5631 | TCP | Valid Use - pcAnywhere Host |
| 5632 | UDP | Valid Use - pcAnywhere Host |
| 5670 | TCP | Valid Use - Active Worlds |
| 5800 | TCP | Valid Use - Virtual Network Computing (VNC) |
| 5900 | TCP | Valid Use - Virtual Network Computing (VNC) |
| 6073 | UDP | Age of Empires (see also port #2300), Battlecom |
| 6097 | ??? | Valid use - Napster Client |
| 6112 | UDP | Valid Use - (game) Starcraft, Blueserver (TCP also) |
| 6113 | TCP and UDP | Valid Use - Blueserver |
| 6114 | TCP and UDP | Valid Use - Blueserver |
| 6115 | TCP and UDP | Valid Use - Blueserver |
| 6116 | TCP and UDP | Valid Use - Blueserver |
| 6117 | TCP and UDP | Valid Use - Blueserver |
| 6118 | TCP and UDP | Valid Use - Blueserver |
| 6119 | TCP and UDP | Valid Use - Blueserver |
| 6120 | ??? | Valid use - Napster Client |
| 6336 | ??? | Valid use - Napster Client |
| 6346 | ??? | Valid use - Gnutella file exchange. Also used by Napster Client. |
| 6348 | TCP | Valid Use - Audio Galaxy (MP3 Sharing) |
| 6666 | TCP | Valid use - Napster directory server or (game) KALI. APC UPS Service. |
| 6667 | TCP | Valid Use - MS Game Zone APC UPS Service. |
| 6668 | TCP | Valid Use - APC UPS Service. |
| 6688 | ??? | Valid use - Possibly misconfigured Napster |
| 6697 | ??? | Valid use - Napster Client |
| 6698 | ??? | Valid use - Napster Client |
| 6699 | ??? | Valid use - Napster Port (beta 7) |
| 6801 | UDP | Valid use - Net2Phone (and any of 1-3000) |
| 6880 | TCP | Valid use - Delta Three PC to Phone |
| 6901 | ??? | Valid use - MSN Messenger (voice chat) |
| 6970 | TCP | Valid use - QuickTime 4 Server or RealAudio (6970 through 7170) |
| 7000 | TCP | Valid Use - Active Worlds (can use from 7000-7100) |
| 7070 | TCP | Valid Use - Active Worlds (can use 7000-7100) or RealAudio |
| 7640 | TCP | Valid use - CuSeeMe |
| 7642 | TCP | Valid use - CuSeeMe |
| 7648 | ??? | Valid use - CuSeeMe |
| 7649 | TCP | Valid use - CuSeeMe |
| 7775 | TCP | Valid Use - (game) Ultima |
| 7776 | TCP | Valid Use - (game) Ultima |
| 7777 | ??? | Valid use - Napster directory server or Active Worlds or (game) Ultima |
| 7778 | ??? | Valid use - Unreal Tournament |
| 7845 | UDP | Valid Use - (game) ZNES |
| 7875 | TCP | Valid Use - (game) Ultima (UOMonitor) |
| 8000 | TCP | Valid Use - ShoutCast Server or Game: Aliens vs. Predator (8000-8999 TCP and UDP) |
| 8001 | TCP | Valid Use - ShoutCast Server |
| 8002 | TCP | Valid Use - ShoutCast Server |
| 8003 | TCP | Valid Use - ShoutCast Server |
| 8004 | TCP | Valid Use - ShoutCast Server |
| 8005 | TCP | Valid Use - ShoutCast Server |
| 8080 | TCP | Valid Use - Unreal Tourney Server Admin |
| 8680 | TCP | Valid use - Dialpad |
| 8681 | TCP | Valid use - Dialpad |
| 8682 | TCP | Valid use - Dialpad |
| 8683 | TCP | Valid use - Dialpad |
| 8684 | TCP | Valid use - Dialpad |
| 8685 | TCP | Valid use - Dialpad |
| 8686 | TCP | Valid use - Dialpad |
| 8777 | UDP | Valid use - America's Army |
| 8875 | ??? | Valid use - Napster Redirector |
| 8888 | ??? | Valid use - Napster directory server or OpenNap or (game) Ultima (patch) |
| 9000 | UDP | Valid Use - Asheron's Call (in/out - May use from 9000-9013) |
| 9001 | UDP | Valid Use - Asheron's Call (in) |
| 9004 | UDP | Valid Use - Asheron's Call (in/out) |
| 9005 | UDP | Valid Use - Asheron's Call (in) |
| 9008 | UDP | Valid Use - Asheron's Call (out) |
| 9012 | UDP | Valid Use - Asheron's Call (in/out) |
| 9013 | UDP | Valid Use - Asheron's Call (in) |
| 9442 | UDP | Valid Use - (game) Need for Speed - Porsche |
| 9999 | TCP | Valid Use - (game) Ultima (patch) |
| 10000 | TCP | Valid Use - Bit Tornado |
| 10001 | TCP | Valid Use - Bit Tornado |
| 10002 | TCP | Valid Use - Bit Tornado |
| 10003 | TCP | Valid Use - Bit Tornado |
| 10004 | TCP | Valid Use - Bit Tornado |
| 10005 | TCP | Valid Use - Bit Tornado |
| 10006 | TCP | Valid Use - Bit Tornado |
| 10007 | TCP | Valid Use - Bit Tornado |
| 10008 | TCP | Valid Use - Bit Tornado |
| 10009 | TCP | Valid Use - Bit Tornado |
| 10010 | TCP | Valid Use - Bit Tornado |
| 11370 | ??? | Valid use - PGP Automatic Verification. |
| 11371 | ??? | Valid use - PGP Automatic Verification. |
| 12053 | UDP | Valid use - Dwyco Video Conferencing or Delta Three PC to Phone |
| 12080 | UDP | Valid use - Dwyco Video Conferencing or Delta Three PC to Phone |
| 12083 | UDP | Valid use - Dwyco Video Conferencing or Delta Three PC to Phone |
| 12120 | UDP | Valid use - Dwyco Video Conferencing or Delta Three PC to Phone |
| 12122 | UDP | Valid use - Dwyco Video Conferencing or Delta Three PC to Phone |
| 14567 | UDP | Valid use - Battlefield 1942 |
| 15567 | UDP | Valid use - Battlefield Vietnam |
| 15690 | UDP | Valid use - Battlefield Vietnam |
| 16000 | UDP | Valid use - Dwyco Video Conferencing or (game) Motorhead Server |
| 16567 | UDP | Valid use - Battlefield 2 |
| 20025 | TCP | Valid use - America's Army |
| 20045 | TCP | Valid use - America's Army |
| 20046 | TCP | Valid use - America's Army |
| 22222 | TCP | Valid use - University of Ky: Internet Tic-Tac-Toe (Announce Messages) |
| 22223 | TCP | Valid use - University of Ky: Internet Tic-Tac-Toe (Outcome Messages) |
| 23000 | UDP | Valid use - Battlefield Vietnam |
| 23001 | UDP | Valid use - Battlefield Vietnam |
| 23002 | UDP | Valid use - Battlefield Vietnam |
| 23003 | UDP | Valid use - Battlefield Vietnam |
| 23004 | UDP | Valid use - Battlefield Vietnam |
| 23005 | UDP | Valid use - Battlefield Vietnam |
| 23006 | UDP | Valid use - Battlefield Vietnam |
| 23007 | UDP | Valid use - Battlefield Vietnam |
| 23008 | UDP | Valid use - Battlefield Vietnam |
| 23009 | UDP | Valid use - Battlefield Vietnam |
| 24032 | UDP | Valid use - CuSeeMe |
| 24150 | UDP | Valid use - Delta Three PC to Phone |
| 24151 | UDP | Valid use - Delta Three PC to Phone |
| 24152 | UDP | Valid use - Delta Three PC to Phone |
| 24153 | UDP | Valid use - Delta Three PC to Phone |
| 24154 | UDP | Valid use - Delta Three PC to Phone |
| 24155 | UDP | Valid use - Delta Three PC to Phone |
| 24156 | UDP | Valid use - Delta Three PC to Phone |
| 24157 | UDP | Valid use - Delta Three PC to Phone |
| 24158 | UDP | Valid use - Delta Three PC to Phone |
| 24159 | UDP | Valid use - Delta Three PC to Phone |
| 24160 | UDP | Valid use - Delta Three PC to Phone |
| 24161 | UDP | Valid use - Delta Three PC to Phone |
| 24162 | UDP | Valid use - Delta Three PC to Phone |
| 24163 | UDP | Valid use - Delta Three PC to Phone |
| 24164 | UDP | Valid use - Delta Three PC to Phone |
| 24165 | UDP | Valid use - Delta Three PC to Phone |
| 24166 | UDP | Valid use - Delta Three PC to Phone |
| 24167 | UDP | Valid use - Delta Three PC to Phone |
| 24168 | UDP | Valid use - Delta Three PC to Phone |
| 24169 | UDP | Valid use - Delta Three PC to Phone |
| 24170 | UDP | Valid use - Delta Three PC to Phone |
| 24171 | UDP | Valid use - Delta Three PC to Phone |
| 24172 | UDP | Valid use - Delta Three PC to Phone |
| 24173 | UDP | Valid use - Delta Three PC to Phone |
| 24174 | UDP | Valid use - Delta Three PC to Phone |
| 24175 | UDP | Valid use - Delta Three PC to Phone |
| 24176 | UDP | Valid use - Delta Three PC to Phone |
| 24177 | UDP | Valid use - Delta Three PC to Phone |
| 24178 | UDP | Valid use - Delta Three PC to Phone |
| 24179 | UDP | Valid use - Delta Three PC to Phone |
| 26000 | UDP | Valid Use - Elite Force (game) - Quake |
| 26214 | ??? | Valid Use - Dark Reigh 2 (game) |
| 26900 | UDP | Valid Use - Hexen II (for 1st player) |
| 27015 | ??? | Valid use - Half-Life Gamer Use Port - Team Fortress Classic (TFC) - Counterstrike - Day of Defeat |
| 27374 | ??? | Valid use - Address Search Protocol (ASP - IANA) |
| 27500 | UDP | Valid Use - Elite Force (game) |
| 27900 | UDP | Valid Use - America's Army, Battlefield 2, Battlefield Vietnam |
| 27910 | UDP | Valid use - Quake II Gamer Use Port or Elite Force |
| 27960 | UDP | Valid use - Quake II Gamer Use Port or Elite Force |
| 28910 | ??? | Valid use - Heretic II Gamer Use Port, Battlefield 2 (UDP) |
| 28911 | ??? | Valid use - Heretic II Gamer Use Port |
| 29900 | TCP | Valid use - Battlefield 2 |
| 29901 | TCP | Valid use - Battlefield 2 |
| 39213 | UDP | Valid use - Sygate Manager |
| 44334 | ??? | Valid use - TinySoft Tiny Personal Firewall use. |
| 44488 | TCP and UDP | Valid use - BackupStream |
| 47624 | TCP | Valid use - Battlecom |
| 51200 | UDP | Valid use - Dialpad |
| 51201 | UDP | Valid use - Dialpad |
| 51210 | TCP | Valid use - Dialpad |
| 55123 | UDP | Valid use - Battlefield 2 |
| 55124 | UDP | Valid use - Battlefield 2 |
| 55125 | UDP | Valid use - Battlefield 2 |
| 56800 | UDP | Valid use - CuSeeMe |