.. /dnx.exe

Star

Paths:

• no default

Resources:

• https://enigma0x3.net/2016/11/17/bypassing-application-whitelisting-by-using-dnx-exe/

Acknowledgements:

• Matt Nelson (@enigma0x3)

Detections:

• Sigma: proc_creation_win_lolbin_dnx.yml
• Elastic: defense_evasion_unusual_process_network_connection.toml
• Elastic: defense_evasion_network_connection_from_windows_binary.toml
• BlockRule: https://docs.microsoft.com/en-us/windows/security/threat-protection/windows-defender-application-control/microsoft-recommended-block-rules

Execute

1. Execute C# code located in the specified folder via 'Program.cs' and 'Project.json' (Note - Requires dependencies)

   dnx.exe C:\Windows\Temp\folder

   Use case

   Local execution of C# project stored in consoleapp folder.

   Privileges required

   User

   Operating systems

   Windows

   ATT&CK® technique

   T1127: Trusted Developer Utilities Proxy Execution

   Tags

   Execute: CSharp