GenerationIP

Publication DATE :06/11/2005
Last modification DATE : 06/11/2007

Name : ftp

Port : 21

Protocol : TCP  UDP  

Purpose : File Transfer [Control]

Description :
FTP [File Transfert Protocol] is a protocol use to transfert file or data between a client and a server.

This protocol used command to send or put a file and parse the folder architerture. You can used this software in active mode or in passive mode

Active FTP is the default option which is generally used with FTP client programs. it uses a "reverse data channel" that can cause problems when you are behind some firewalls and NAT routers.

however, passive FTP is primarily used by web browsers and can be more firewall and NAT router friendly.

Passive FTP protocol was created to bypass the firewall and router problems associated with active FTP session, you must have the data channel. Passive FTP is like active FTP but both the initial control channel and the data channel.

Please see the FTP Command line Page FTP Commande Line

This port is in relation with DATA source Port (20)

Port Relation : 20

Virus or Trojan Relation :

[trojan] Back Construction
[trojan] BladeRunner
[trojan] Cattivik FTP Server
[trojan] CC Invader
[trojan] Dark FTP
[trojan] Doly Trojan
[trojan] Fore
[trojan] FreddyK
[trojan] Invisible FTP
[trojan] Juggernaut 42
[trojan] Larva
[trojan] MotIv FTP
[trojan] Net Administrator
[trojan] Ramen
[trojan] RTB 666
[trojan] Senna Spy FTP server
[trojan] Traitor 21
[trojan] The Flu
[trojan] WebEx
[trojan] WinCrash