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4) Scheduled Tasks
You can execute remote programs with at and schtasks [5]. It works in the
same situations where you could use psexec, and it also leaves a well known
footprint [12].
5) GPO
If all those protocols are disabled or blocked by the firewall, once you're
Domain Admin, you can use GPO to give users a login script, install an msi,
execute a scheduled task [13], or, like we'll see with the computer of
Mauro Romeo (one of Hacking Team's sysadmins), use GPO to enable WMI and
open the firewall.
[1] https://technet.microsoft.com/en-us/sysinternals/psexec.aspx
[2] https://sourceforge.net/projects/winexe/
[3] https://www.rapid7.com/db/modules/exploit/windows/smb/psexec_psh
[4] http://www.powershellempire.com/?page_id=523
[5] http://blog.cobaltstrike.com/2014/04/30/lateral-movement-with-high-latency-cc/
[6] https://github.com/byt3bl33d3r/pth-toolkit
[7] https://github.com/CoreSecurity/impacket/blob/master/examples/wmiexec.py
[8] https://www.trustedsec.com/june-2015/no_psexec_needed/
[9] http://www.powershellempire.com/?page_id=124
[10] http://www.maquinasvirtuales.eu/ejecucion-remota-con-powershell/
[11] https://adsecurity.org/?p=2277
[12] https://www.secureworks.com/blog/where-you-at-indicators-of-lateral-movement-using-at-exe-on-windows-7-systems
[13] https://github.com/PowerShellEmpire/Empire/blob/master/lib/modules/lateral_movement/new_gpo_immediate_task.py
"In place" Movement:
1) Token Stealing
Once you have admin access on a computer, you can use the tokens of the
other users to access resources in the domain. Two tools for doing this are
incognito [1] and the mimikatz token::* commands [2].
2) MS14-068
You can take advantage of a validation bug in Kerberos to generate Domain
Admin tickets [3][4][5].
3) Pass the Hash
If you have a user's hash, but they're not logged in, you can use
sekurlsa::pth [2] to get a ticket for the user.
4) Process Injection
Any RAT can inject itself into other processes. For example, the migrate
command in meterpreter and pupy [6], or the psinject [7] command in
powershell empire. You can inject into the process that has the token you
want.
5) runas
This is sometimes very useful since it doesn't require admin privileges.
The command is part of windows, but if you don't have a GUI you can use
powershell [8].
[1] https://www.indetectables.net/viewtopic.php?p=211165
[2] https://adsecurity.org/?page_id=1821
[3] https://github.com/bidord/pykek
[4] https://adsecurity.org/?p=676
[5] http://www.hackplayers.com/2014/12/CVE-2014-6324-como-validarse-con-cualquier-usuario-como-admin.html
[6] https://github.com/n1nj4sec/pupy
[7] http://www.powershellempire.com/?page_id=273
[8] https://github.com/FuzzySecurity/PowerShell-Suite/blob/master/Invoke-Runas.ps1
----[ 13.2 - Persistence ]------------------------------------------------------
Once you have access, you want to keep it. Really, persistence is only a
challenge for assholes like Hacking Team who target activists and other
individuals. To hack companies, persistence isn't needed since companies never
sleep. I always use Duqu 2 style "persistence", executing in RAM on a couple
high-uptime servers. On the off chance that they all reboot at the same time,
I have passwords and a golden ticket [1] as backup access. You can read more
about the different techniques for persistence in windows here [2][3][4]. But
for hacking companies, it's not needed and it increases the risk of detection.
[1] http://blog.cobaltstrike.com/2014/05/14/meterpreter-kiwi-extension-golden-ticket-howto/
[2] http://www.harmj0y.net/blog/empire/nothing-lasts-forever-persistence-with-empire/
[3] http://www.hexacorn.com/blog/category/autostart-persistence/
[4] https://blog.netspi.com/tag/persistence/
----[ 13.3 - Internal reconnaissance ]------------------------------------------
The best tool these days for understanding windows networks is Powerview [1].
It's worth reading everything written by it's author [2], especially [3], [4],
[5], and [6]. Powershell itself is also quite powerful [7]. As there are still
many windows 2000 and 2003 servers without powershell, you also have to learn
the old school [8], with programs like netview.exe [9] or the windows builtin
"net view". Other techniques that I like are:
1) Downloading a list of file names
With a Domain Admin account, you can download a list of all filenames in
the network with powerview: