LOLBAS/yml/OSBinaries/Msbuild.yml

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---
Name: Msbuild.exe
Description: Used to compile and execute code
Author: 'Oddvar Moe'
Created: 2018-05-25
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Commands:
- Command: msbuild.exe pshell.xml
Description: Build and execute a C# project stored in the target XML file.
Usecase: Compile and run code
Category: AWL bypass
Privileges: User
MitreID: T1127.001
OperatingSystem: Windows vista, Windows 7, Windows 8, Windows 8.1, Windows 10
- Command: msbuild.exe project.csproj
Description: Build and execute a C# project stored in the target csproj file.
Usecase: Compile and run code
Category: Execute
Privileges: User
MitreID: T1127.001
OperatingSystem: Windows vista, Windows 7, Windows 8, Windows 8.1, Windows 10
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- Command: msbuild.exe @sample.rsp
Description: Executes Logger statements from rsp file
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Usecase: Execute DLL
Category: Execute
Privileges: User
MitreID: T1127.001
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OperatingSystem: Windows vista, Windows 7, Windows 8, Windows 8.1, Windows 10
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- Command: msbuild.exe /logger:TargetLogger,C:\Loggers\TargetLogger.dll;MyParameters,Foo
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Description: Executes generated Logger dll file with TargetLogger export
Usecase: Execute DLL
Category: Execute
Privileges: User
MitreID: T1127.001
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OperatingSystem: Windows vista, Windows 7, Windows 8, Windows 8.1, Windows 10
- Command: msbuild.exe project.proj
Description: Execute jscript/vbscript code through XML/XSL Transformation. Requires Visual Studio MSBuild v14.0+.
Usecase: Execute project file that contains XslTransformation tag parameters
Category: Execute
Privileges: User
MitreID: T1127.001
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OperatingSystem: Windows vista, Windows 7, Windows 8, Windows 8.1, Windows 10
Full_Path:
- Path: C:\Windows\Microsoft.NET\Framework\v2.0.50727\Msbuild.exe
- Path: C:\Windows\Microsoft.NET\Framework64\v2.0.50727\Msbuild.exe
- Path: C:\Windows\Microsoft.NET\Framework\v3.5\Msbuild.exe
- Path: C:\Windows\Microsoft.NET\Framework64\v3.5\Msbuild.exe
- Path: C:\Windows\Microsoft.NET\Framework\v4.0.30319\Msbuild.exe
- Path: C:\Windows\Microsoft.NET\Framework64\v4.0.30319\Msbuild.exe
- Path: C:\Program Files (x86)\MSBuild\14.0\bin\MSBuild.exe
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Code_Sample:
- Code:
Detection:
- IOC: Msbuild.exe should not normally be executed on workstations
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Resources:
- Link: https://github.com/redcanaryco/atomic-red-team/blob/master/atomics/T1127/T1127.md
- Link: https://github.com/Cn33liz/MSBuildShell
- Link: https://pentestlab.blog/2017/05/29/applocker-bypass-msbuild/
- Link: https://oddvar.moe/2017/12/13/applocker-case-study-how-insecure-is-it-really-part-1/
- Link: https://gist.github.com/bohops/4ffc43a281e87d108875f07614324191
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- Link: https://github.com/LOLBAS-Project/LOLBAS/issues/165
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- Link: https://www.daveaglick.com/posts/msbuild-loggers-and-logging-events
Acknowledgement:
- Person: Casey Smith
Handle: '@subtee'
- Person: Cn33liz
Handle: '@Cneelis'
- Person: Jimmy
Handle: '@bohops'
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---