.NET Agent C#
.NET C# Payload
Overview
The .NET C# payload is a native Windows agent built in C# that runs as a standalone executable inside the .NET runtime and connects back to Control Pack.
It is designed to provide a flexible post-exploitation agent with support for interactive command execution and extended functionality through staged deployment.
How It Works
When generated, the payload runs as a regular Windows process and establishes a connection to the configured Control Pack server.
The agent supports a two-stage execution model:
Stage 1 – Lightweight Agent
The initial stage provides a minimal footprint and includes:
Interactive terminal shell
Command execution
Basic communication with Control Pack
This stage is intentionally small. If execution is interrupted early, only this limited footprint is exposed.
Stage 2 – Extended Capabilities
Once upgraded to Stage 2, the agent enables additional functionality, including:
System and context enumeration (systeminfo, whoami, current path)
Screenshot and webcam capture
Bidirectional file transfer (download_file, upload_file)
Remote process listing (listproc)
This staged approach allows operators to start with a lightweight implant and only enable extended functionality when needed.
Operational Characteristics
The .NET C# payload:
Runs as a standard Windows executable
Operates within the .NET runtime
Connects back to Control Pack for interactive control
Supports staged functionality (basic → extended)
Executes quietly as a normal user-mode process
Does not require injection or in-process loading
It is suitable for general-purpose usage where a standalone agent is appropriate.
When to Use This Agent
The .NET C# payload is appropriate when:
You need a straightforward executable agent
You want staged functionality (lightweight first, extended later)
The environment supports .NET
Running a standard process is acceptable
Ease of use is more important than stealth-focused loading techniques
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