Reverse-Socks5-WebSocks

RustySmuggler is a reverse SOCKS5 proxy tunneled over websockets.

Very similar to another project I dropped here but was written instead using websockets, placing it here for now, and may merge the two projects later.

Overview

In short, you place the server on an internet-accessible host which will listen for a reverse websockets connection from the client binary placed inside of a network.
Then from the internet accessible host, a user can proxy through the "frontend" listening port to access hosts on the internal network.

Usage

server 0.1.0

USAGE:
    server -b <backend> -f <frontend>

FLAGS:
    -h, --help       Prints help information
    -V, --version    Prints version information

OPTIONS:
    -b <backend>         Socket address for external WS listener, the one to which the client will connect
    -f <frontend>        Socket address for front end proxy, the one to which the proxychains/proxy client might connect

Running the server

1. Build the server (see building section(s))
2. ./server -b 0.0.0.0:3030 -f 0.0.0.0:2020

Tips

• Use IP addresses instead of domain names if issues are encountered
• Use iptables or ssh forwarding to prevent unauthorized access to the client-side (-f) port

Running the client (implant)

1. First edit the 'IP' and 'PORT' variables in client/src/config.rs to point to your server's -b address
2. Build the client (see building section(s))
3. run the client with ./client, or in windows: client.exe

Using the proxy

Point your browser or proxychains.conf to match that of your server's -f value

Building

This tool requires that rust be installed:
click here for information on that.

Building

You should be able to get away with simply running:
cargo b --release
The compiled binaries should be in ./target/release/server and ./target/release/client.

Building with Debug Output:

For fear of having anyone accidently compiling with debug, thus including a ton of potential IoCs and literals, I made it more annoying by requiring that a compiler flag be included:
RUSTFLAGS='--cfg debug' cargo build
or in windows you can use one of the following:
Windows (psh):
$env:RUSTFLAGS='--cfg debug' cargo build --bin client
Windows (cmd):
set RUSTFLAGS='--cfg debug' cargo build --bin client

P.S. If you would like to get the binary even smaller, this repo is a great guide for that sort of thing.