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https://github.com/bitsadmin/nopowershell

PowerShell rebuilt in C# for Red Teaming purposes
https://github.com/bitsadmin/nopowershell

cobaltstrike powershell redteaming

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PowerShell rebuilt in C# for Red Teaming purposes

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README 

        
# NoPowerShell

NoPowerShell is a tool implemented in C# which supports executing PowerShell-like commands while remaining invisible to any PowerShell logging mechanisms. This .NET Framework 2 compatible binary can be loaded in Cobalt Strike to execute commands in-memory. No `System.Management.Automation.dll` is used; only native .NET libraries. An alternative usecase for NoPowerShell is to launch it as a DLL via rundll32.exe in a restricted environment: `rundll32 NoPowerShell.dll,main`.



This project makes it easy for everyone to extend its functionality using only a few lines of C# code. For more info, see [CONTRIBUTING.md](https://github.com/bitsadmin/nopowershell/blob/master/CONTRIBUTING.md).



Latest binaries available from the [Releases](https://github.com/bitsadmin/nopowershell/releases) page. Bleeding edge code available in the [DEV](https://github.com/bitsadmin/nopowershell/tree/dev) branch. To kickstart your NoPowerShell skills, make sure to also check out the cmdlet [Cheatsheet](https://github.com/bitsadmin/nopowershell/blob/master/CHEATSHEET.md).



# Screenshots

## Running in Cobalt Strike

![NoPowerShell supported commands](https://raw.githubusercontent.com/bitsadmin/nopowershell/master/Pictures/CurrentlySupportedCommands.png "NoPowerShell in Cobalt Strike")

## Sample execution of commands

![NoPowerShell sample commands](https://raw.githubusercontent.com/bitsadmin/nopowershell/master/Pictures/SampleCommands.png "NoPowerShell in Cobalt Strike")

## Rundll32 version

![NoPowerShellDll via rundll32](https://raw.githubusercontent.com/bitsadmin/nopowershell/master/Pictures/NoPowerShellDll.png "NoPowerShellDll via rundll32")



# Why NoPowerShell

NoPowerShell is developed to be used with the `execute-assembly` command of Cobalt Strike or in a restricted environment using `rundll32`.

Reasons to use NoPowerShell:

- Executes pretty stealthy

- Powerful functionality

- Provides the cmdlets you are already familiar with in PowerShell, so no need to learn yet another tool

- If you are not yet very familiar with PowerShell, the cmd.exe aliases are available as well (e.g. `ping` instead of `Test-NetConnection`)

- In case via `powerpick` or `powershell` cmdlets are not available, they _are_ available in `nps` (e.g. cmdlets from the ActiveDirectory module)

- Easily extensible with only a few lines of C#



# Usage

## Examples

See [CHEATSHEET.md](https://github.com/bitsadmin/nopowershell/blob/master/CHEATSHEET.md).



## Use in Cobalt Strike via execute-assembly

Use Cobalt Strike's `execute-assembly` command to launch the `NoPowerShell.exe`. For example `execute-assembly /path/to/NoPowerShell.exe Get-Command`.

Optionally `NoPowerShell.cna` can be used to add the `nps` alias to Cobalt Strike.



## Use in Cobalt Strike via BOF.NET

1. Install the BOF.NET BOF from https://github.com/CCob/BOF.NET

2. Load the BOF.NET runtime: `bofnet_init`

3. Load the NoPowerShell module: `bofnet_load /path/to/NoPowerShell.dll`

4. Execute NoPowerShell cmdlets: `bofnet_execute NoPowerShell.Program Get-Command`



## Use in Cobalt Strike using @williamknows fork of BOF.NET

This fork allows running regular .NET executables

1. Obtain and compile @williamknows' fork of the BOF.NET from https://github.com/CCob/BOF.NET

2. Load the BOF.NET runtime: `bofnet_init`

3. Load the NoPowerShell module: `bofnet_load /path/to/NoPowerShell.exe`

4. Execute NoPowerShell cmdlets: `bofnet_executeassembly NoPowerShell Get-Command`



## Launch via rundll32

1. Create a new shortcut to `NoPowerShell.dll` file (drag using right click -> Create shortcuts here)

2. Update the shortcut prefixing the filename with `rundll32` and appending `,main`

3. The shortcut will now look like `rundll32 C:\Path\to\NoPowerShell.dll,main`

4. Double click the shortcut



## Note

When using NoPowerShell from cmd.exe or PowerShell, you need to escape the pipe character (`|`) with respectively a caret (`^`) or a backtick (`` ` ``), e.g.:



- cmd.exe: `ls ^| select Name`

- PowerShell: ```ls `| select Name```



# Known issues

- Pipeline characters need to be surrounded by spaces

- TLS 1.1+ is not supported by .NET Framework 2, so any site enforcing it will result in a connection error



# Improvements

- Fix above issues

- Improve stability by adding exception handling

- Support for parameter groups

- Add support for .NET code in commandline, e.g.: `[System.Security.Principal.WindowsIdentity]::GetCurrent().Name`



# Requested NoPowerShell cmdlets

| Cmdlet | Description |

| - | - |

| Invoke-Command | Using PSRemoting execute a command on a remote machine (which in that case will of course be logged) |

| Get-Service | Include option to also show service paths like in `sc qc` |

| * | More \*-Item\* commands |

| Search-ADAccount | |

| Get-ADPrincipalGroupMembership | |

| Get-ADOrganizationalUnits | |

| * | More commands from the `ActiveDirectory` PowerShell module |

| * | Sysinternals utilities like `pipelist` and `sdelete` |



# Contributed NoPowerShell cmdlets

Authors of additional NoPowerShell cmdlets are added to the table below. Moreover, the table lists commands that are requested by the community to add. Together we can develop a powerful NoPowerShell toolkit!



| Cmdlet | Contributed by | GitHub | Twitter | Description |

| - | - | - | - | - |

|  |  |  |  |  |



# Included NoPowerShell cmdlets

| Cmdlet | Module | Notes |

| - | - | - |

| Get-ADGroup | ActiveDirectory | |

| Get-ADGroupMember | ActiveDirectory | |

| Get-ADComputer | ActiveDirectory | |

| Get-ADObject | ActiveDirectory | |

| Get-ADUser | ActiveDirectory | |

| Get-ADTrust | ActiveDirectory | |

| Get-WinStation | Additional | |

| Get-RemoteSmbShare | Additional | |

| Get-Whoami | Additional | whoami.exe /ALL is not implemented yet |

| Expand-Archive | Archive | Requires .NET 4.5+ |

| Compress-Archive | Archive | Requires .NET 4.5+ |

| Where-Object | Core | |

| Get-Help | Core | |

| Get-Command | Core | |

| Resolve-DnsName | DnsClient | |

| Get-LocalGroup | LocalAccounts | |

| Get-LocalGroupMember | LocalAccounts | |

| Get-LocalUser | LocalAccounts | |

| Get-ItemProperty | Management | |

| Invoke-WmiMethod | Management | |

| Remove-Item | Management | |

| Copy-Item | Management | |

| Get-Content | Management | |

| Get-ChildItem | Management | |

| Get-WmiObject | Management | |

| Get-Process | Management | |

| Stop-Process | Management | |

| Get-HotFix | Management | |

| Get-PSDrive | Management | |

| Get-ItemPropertyValue | Management | |

| Set-Clipboard | Management | |

| Get-DnsClientCache | Management | |

| Get-ComputerInfo | Management | |

| Get-Clipboard | Management | |

| Get-NetRoute | NetTCPIP | |

| Get-NetIPAddress | NetTCPIP | |

| Get-NetNeighbor | NetTCPIP | No support for IPv6 yet |

| Test-NetConnection | NetTCPIP | |

| Get-GetNetTCPConnection | NetTCPIP | |

| Get-SmbShare | SmbShare | |

| Get-SmbMapping | SmbShare | |

| Format-Table | Utility | |

| Sort-Object | Utility | |

| Export-Csv | Utility | |

| Format-List | Utility | |

| Select-Object | Utility | |

| Out-File | Utility | |

| Write-Output | Utility | |

| Invoke-WebRequest | Utility | |

| Measure-Object | Utility | |



Also make sure to check out the [Cheatsheet](https://github.com/bitsadmin/nopowershell/blob/master/CHEATSHEET.md) for examples on how to use these cmdlets.



# Acknowledgements

Various NoPowerShell cmdlets and NoPowerShell DLL include code created by other developers.



| Who | Website | Notes |

| - | - | - |

| Contributors of pinvoke.net | https://www.pinvoke.net/ | Various cmdlets use snippets from pinvoke |

| Michael Conrad | https://github.com/MichaCo/ | Parts of the Resolve-Dns cmdlet are based on the code of the DnsClient.Net project |

| Rex Logan | https://stackoverflow.com/a/1148861 | Most code of the Get-NetNeighbor cmdlet originates from his StackOverflow post |

| PowerShell developers | https://github.com/PowerShell/ | Code of NoPowerShell DLL is largely based on the code handling the console input of PowerShell |

| Benjamin Delpy | https://github.com/gentilkiwi/ | Code of Get-WinStation is inspired by the code of Mimikatz' ts::sessions command |

| Dan Ports | https://github.com/danports/ | Marshalling code of Get-Winstation is partially copied from the Cassia project |

| Mazdak | https://www.codeproject.com/Articles/2937/Getting-local-groups-and-member-names-in-C | Native function calls for the Get-LocalGroupMember cmdlet |

| Rex Logan | https://stackoverflow.com/a/1148861 | Code of Get-NetNeighbor cmdlet |



**Authored by Arris Huijgen ([@bitsadmin](https://twitter.com/bitsadmin/) - https://github.com/bitsadmin/)**