Timestomp - Empire Module
This page contains detailed information about how to use the powershell/management/timestomp Empire module. For list of all Empire modules, visit the Empire Module Library.
Module Overview
Name: Timestomp
Module: powershell/management/timestomp
Source code [1]: empire/server/modules/powershell/management/timestomp.yaml
Source code [2]: empire/server/data/module_source/management/Set-MacAttribute.ps1
MITRE ATT&CK:
T1099
Language: PowerShell
Needs admin: No
OPSEC safe: Yes
Background: No
The timestomp module executes time-stomp like functionality by invoking Set-MacAttribute.
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 timestomp 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 timestomp module:
Agent
Agent to run module on.
FilePath
File path to modify.
Additional Module Options
This is a list of additional options that are supported by the timestomp module:
Accessed
Set accessed time (01/03/2006 12:12 pm).
All
Set all MAC attributes to value (01/03/2006 12:12 pm).
Created
Set created time (01/03/2006 12:12 pm).
Modified
Set modified time (01/03/2006 12:12 pm).
OldFile
Old file path to clone MAC from.
OutputFunction
PowerShell's output function to use ("Out-String", "ConvertTo-Json", "ConvertTo-Csv", "ConvertTo-Html", "ConvertTo-Xml").
Default value: Out-String.
Suggested values: Out-String, ConvertTo-Json, ConvertTo-Csv, ConvertTo-Html, ConvertTo-Xml.
Timestomp Example Usage
Here's an example of how to use the timestomp 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/management/timestomp
Author @obscuresec
Background False
Comments http://obscuresecurity.blogspot.com/2014/05/touch.html
Description Executes time-stomp like functionality by invoking Set-MacAttribute.
Language powershell
Name powershell/management/timestomp
NeedsAdmin False
OpsecSafe True
Techniques http://attack.mitre.org/techniques/T1099
,Record Options--,------------,----------,-------------------------------------,
| Name | Value | Required | Description |
|----------------|------------|----------|-------------------------------------|
| Accessed | | False | Set accessed time (01/03/2006 12:12 |
| | | | pm). |
|----------------|------------|----------|-------------------------------------|
| Agent | | True | Agent to run module on. |
|----------------|------------|----------|-------------------------------------|
| All | | False | Set all MAC attributes to value |
| | | | (01/03/2006 12:12 pm). |
|----------------|------------|----------|-------------------------------------|
| Created | | False | Set created time (01/03/2006 12:12 |
| | | | pm). |
|----------------|------------|----------|-------------------------------------|
| FilePath | | True | File path to modify. |
|----------------|------------|----------|-------------------------------------|
| Modified | | False | Set modified time (01/03/2006 12:12 |
| | | | pm). |
|----------------|------------|----------|-------------------------------------|
| OldFile | | False | Old file path to clone MAC from. |
|----------------|------------|----------|-------------------------------------|
| OutputFunction | Out-String | False | PowerShell's output function to use |
| | | | ("Out-String", "ConvertTo-Json", |
| | | | "ConvertTo-Csv", "ConvertTo-Html", |
| | | | "ConvertTo-Xml"). |
'----------------'------------'----------'-------------------------------------'
(Empire: usemodule/powershell/management/timestomp) > set Agent Y4LHEV83
[*] Set Agent to Y4LHEV83
(Empire: usemodule/powershell/management/timestomp) > set FilePath value
[*] Set FilePath to value
(Empire: usemodule/powershell/management/timestomp) > 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/management/timestomp.yaml
- https://github.com/BC-SECURITY/Empire/tree/master/empire/server/data/module_source/management/Set-MacAttribute.ps1
- http://obscuresecurity.blogspot.com/2014/05/touch.html
- http://attack.mitre.org/techniques/T1099
- http://www.obscuresec.com/2014/05/touch.html
See Also
Check also the following modules related to this module:
- powershell/management/spawnas
- powershell/management/zipfolder
- powershell/management/switch_listener
- powershell/management/start-processasuser
- powershell/management/invoke_script
- powershell/management/invoke_sharpchisel
- powershell/management/get_domain_sid
- powershell/management/enable_multi_rdp
- powershell/management/enable_rdp
- powershell/management/reflective_inject
- powershell/management/shinject
- powershell/management/lock
- powershell/management/sid_to_user
- powershell/management/psinject
- powershell/management/spawn
- powershell/management/phant0m
- powershell/management/disable_rdp
- powershell/management/user_to_sid
- powershell/management/wdigest_downgrade
- powershell/management/runas
- powershell/management/downgrade_account
- powershell/management/vnc
- powershell/management/powercat
- powershell/management/logoff
- powershell/management/invoke_socksproxy
- powershell/management/restart
- powershell/management/honeyhash
- powershell/management/mailraider/get_subfolders
- powershell/management/mailraider/mail_search
- powershell/management/mailraider/send_mail
- powershell/management/mailraider/view_email
- powershell/management/mailraider/search_gal
- powershell/management/mailraider/get_emailitems
- powershell/management/mailraider/disable_security
Version
This page has been created based on Empire version 4.1.3 (BC Security Fork).
Visit Empire Module Library for more modules.
