使用Netcat进行攻击

https://www.freebuf.com/column/135007.html

在网上找到了一个开启了ftp服务的服务：

http://static.vhdong.com/Upload/Templates/

扫描了一下 是21端口   121.41.89.5

但是ftp的匿名访问并没有开启吧， 连不上的

root@kali:/home/test# ping  static.vhdong.com
PING static.vhdong.com (121.41.89.5) 56(84) bytes of data.
64 bytes from 121.41.89.5 (121.41.89.5): icmp_seq=1 ttl=115 time=30.2 ms
64 bytes from 121.41.89.5 (121.41.89.5): icmp_seq=2 ttl=115 time=30.1 ms
^C
--- static.vhdong.com ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 3ms
rtt min/avg/max/mdev = 30.054/30.116/30.179/0.184 ms


root@kali:/home/test# nmap   static.vhdong.com
Starting Nmap 7.70 ( https://nmap.org ) at 2019-01-08 09:52 CST
Nmap scan report for static.vhdong.com (121.41.89.5)
Host is up (0.031s latency).
Not shown: 997 filtered ports
PORT     STATE SERVICE
21/tcp   open  ftp
80/tcp   open  http
3389/tcp open  ms-wbt-server

Nmap done: 1 IP address (1 host up) scanned in 17.94 seconds


root@kali:/home/test# nc 121.41.89.5 21
220-FileZilla Server 0.9.53 beta
220-written by Tim Kosse (tim.kosse@filezilla-project.org)
220 Please visit https://filezilla-project.org/
USER anyone
331 Password required for anyone
PASS anyone
530 Login or password incorrect!
USER 421 Login time exceeded. Closing control connection.
root@kali:/home/test# nc 121.41.89.5 21
220-FileZilla Server 0.9.53 beta
220-written by Tim Kosse (tim.kosse@filezilla-project.org)
220 Please visit https://filezilla-project.org/
USER anonymous
331 Password required for anonymous
PASS anonymous
530 Login or password incorrect!
pwd
530 Please log in with USER and PASS first.
421 Login time exceeded. Closing control connection.
root@kali:/home/test# nc 121.41.89.5 21
220-FileZilla Server 0.9.53 beta
220-written by Tim Kosse (tim.kosse@filezilla-project.org)
220 Please visit https://filezilla-project.org/
USER root 
331 Password required for root
PASS root
530 Login or password incorrect!
help
214-The following commands are recognized:
   ABOR   ADAT   ALLO   APPE   AUTH   CDUP   CLNT   CWD 
   DELE   EPRT   EPSV   FEAT   HASH   HELP   LIST   MDTM
   MFMT   MKD    MLSD   MLST   MODE   NLST   NOOP   NOP 
   OPTS   P@SW   PASS   PASV   PBSZ   PORT   PROT   PWD 
   QUIT   REST   RETR   RMD    RNFR   RNTO   SITE   SIZE
   STOR   STRU   SYST   TYPE   USER   XCUP   XCWD   XMKD
   XPWD   XRMD
214 Have a nice day.
pwd
530 Please log in with USER and PASS first.
421 Login time exceeded. Closing control connection.
root@kali:/home/test#