LOLBAS/yml/OSBinaries/Aspnet_Compiler.yml
bohops 23dd0236ae
Detection Resources and Other Updates (#179)
* Add detection links for scripts

* Add detection links for OtherMSBins. Fixed and updated as needed.

* Add detection links for MSBins. Fixed and updated as needed.

* Add detection links for oslibraries

* Updating template for Detections

* Removing empty Detection:Sigma entries

* Remove redundant blank line

* Replacing commit URL with file URL

Co-authored-by: root <root@DESKTOP-5CR935D.localdomain>
Co-authored-by: Wietze <wietze@users.noreply.github.com>
2021-11-15 08:19:03 -05:00

28 lines
1.3 KiB
YAML

---
Name: Aspnet_Compiler.exe
Description: ASP.NET Compilation Tool
Author: Jimmy (@bohops)
Created: 2021-09-26
Commands:
- Command: C:\Windows\Microsoft.NET\Framework64\v4.0.30319\aspnet_compiler.exe -v none -p C:\users\cpl.internal\desktop\asptest\ -f C:\users\cpl.internal\desktop\asptest\none -u
Description: Execute C# code with the Build Provider and proper folder structure in place.
Usecase: Execute proxied payload with Microsoft signed binary to bypass application control solutions
Category: AWL Bypass
Privileges: User
MitreID: T1127
OperatingSystem: Windows 10
Full_Path:
- Path: c:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
- Path: c:\Windows\Microsoft.NET\Framework64\v4.0.30319\aspnet_compiler.exe
Code_Sample:
- Code: https://github.com/ThunderGunExpress/BringYourOwnBuilder
Detection:
- BlockRule: https://docs.microsoft.com/en-us/windows/security/threat-protection/windows-defender-application-control/microsoft-recommended-block-rules
Resources:
- Link: https://ijustwannared.team/2020/08/01/the-curious-case-of-aspnet_compiler-exe/
- Link: https://docs.microsoft.com/en-us/dotnet/api/system.web.compilation.buildprovider.generatecode?view=netframework-4.8
Acknowledgement:
- Person: cpl
Handle: '@cpl3h'
---