In the `Metasploit Framework`, see the `auxiliary/multi/handler` module. While `Socat` is more robust and has more features, the syntax is pretty hard to grasp. Unstable, as if we press `CTRL + C` we break the connection. `NetCat` is also know to be unstable by default and can lose easily the network connection. However, `Socat` is rarely installed by default while `NetCat` is almost installed on any Linux distribution by default. `NetCat` is the traditional `Swiss Army Knife` of networking tools. In the most basic form, `NetCat` and `Socat` can make easily reverse shells. (#interactive-and-non-interactive-shells) You’ll need to authorise the target to connect to you (command also run on your host): One way to do this is with Xnest (to be run on your system): To catch the incoming xterm, start an X-Server (:1 – which listens on TCP port 6001). It will try to connect back to you (10.0.0.1) on TCP port 6001. The following command should be run on the server. One of the simplest forms of reverse shell is an xterm session. If you have the wrong version of netcat installed, Jeff Price points out here that you might still be able to get your reverse shell back like this: Netcat is rarely present on production systems and even if it is there are several version of netcat, some of which don’t support the -e option. php file to upload, see the more featureful and robust php-reverse-shell. This code assumes that the TCP connection uses file descriptor 3. This was tested under Linux / Python 2.7: Here’s a shorter, feature-free version of the perl-reverse-shell: Some versions of bash can send you a reverse shell (this was tested on Ubuntu 10.10): Some of the examples below should also work on Windows if you use substitute “/bin/sh -i” with “cmd.exe”. The examples shown are tailored to Unix-like systems. Your options for creating a reverse shell are limited by the scripting languages installed on the target system – though you could probably upload a binary program too if you’re suitably well prepared. rhosts` file in order to login, your next step is likely to be either trowing back a reverse shell or binding a shell to a TCP port. If it’s not possible to add a new account to `/ SSH key /. If you’re lucky enough to find a command execution vulnerability during a penetration test, pretty soon afterwards you’ll probably want an interactive shell. For instance, if your target machine spawn out a connection on port `1234` you will be caught very fast. For this, on your target machine, your reverse shell connection should go out on a common well-known port. When doing any reverse shell, you need to be anonimous as possible.
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