Skip to content

Latest commit

 

History

History
23 lines (20 loc) · 2.34 KB

ncat.md

File metadata and controls

23 lines (20 loc) · 2.34 KB

Ncat Usage

ncat similar to the venerable netcat, is a command-line or shell application that can be used for a wide variety of exploitation matters including transferring files, establishing remote shells and more! The official ncat site is http://nmap.org/ncat/.

The examples below are mostly copied from the http://nmap.org/book/ncat-man-examples.html page or http://www.irongeek.com/i.php?page=videos/ncat-nmap-netcat and are not a complete listing of all the examples.

Commands

Command Description / Importance
ncat example.org 8080 Connect to example.org on TCP port 8080.
ncat -l 8080 Listen for connections on TCP port 8080.
ncat --sh-exec "ncat example.org 80" -l 8080 --keep-open Redirect TCP port 8080 on the local machine to host on port 80.
ncat --exec "/bin/bash" -l 8081 --keep-open Bind to TCP port 8081 and attach /bin/bash for the world to access freely.
ncat --exec "/bin/bash" --max-conns 3 --allow \
192.168.0.0/24 -l 8081 --keep-open		 Bind a shell to TCP port 8081, limit access to hosts on a local network, and limit the maximum number of simultaneous connections to 3.
ncat -l --proxy-type http localhost 8888 Create an HTTP proxy server on localhost port 8888.
Server: ncat ClientIP 9899 < inputfile
Client: ncat -l 9899 > outputfile		 Send a file over TCP port 9899 from Server to Client. Server "pushes" the file to the Client.
Server: ncat -l 9899 < inputfile
Client: ncat ServerIP 9899 > outputfile		 Transfer in the other direction, turning Ncat into a "one file" server. Client "pulls" file from the Server.
echo -e "GET / HTTP/1.0\n\n"|ncat google.com 80 Retrieve the HTML source code of the web server at google.com on TCP port 80.
ncat -t example.org 23 Connect to example.org's telnet server on TCP port 23.
Server: ncat -l 74 --udp
Client: ncat --udp localhost 74 < inputfile		 Transfer file from client to server over UDP.
Server: ncat -l 74 --chat
Client1: ncat localhost 74
Client2: ncat localhost 74		 Simple chat.
Server: ncat -l --ssl 74 --send-only < inputfile
Client: ncat localhost 74 --ssl > outputfile		 Transfer file from server to client using SSL encryption.
ncat -l localhost 80 --sh-exec "ncat google.com 80 -o text.txt -x hex.txt" Ncat relay