GeezerVison

Note: This project is purely academic, use at your own risk. I do not support or condone the illegal use of this software or any form of unauthorized attacks.

This method involves injecting a small piece of code ("shellcode") into a spawned process and then using named pipes to read the standard output (stdout) of that process.

Named pipes are a feature of the operating system that allows two processes to communicate with each other. In this case, we create a named pipe in the memory allocated for the shellcode, and then read the stdout of the process through this pipe.

This project was developed to out of the original usage in sliver of execute-shellcode in interactive mode, which I was missing out in Cobalt Strike, thus I wanted to create a BOF to perform a shellcode injection and getting output (for instance, using donut to make a shellcode and injection to another process).

• Injects shellcode into a specified process.
• Supports multiple techniques for shellcode injection.

WARNING: DO NOT RUN interactive_execute_shellcode IN YOUR PERSONAL MACHINE, EXECUTE ONLY IN A TEST ENVIRONMENT!

First, download the project:

git clone https://github.com/maorsabag/interactive_execute_shellcode
cd interactive_execute_shellcode/interactive-execute-shellcode-BOF
chmod +x build.sh
./build.sh

After building the binaries, you can load the .cna script into Cobalt Strike. Here's how:

1. Open Cobalt Strike, go to the Script Manager under the View menu.
2. Click on Load, navigate to the location of your .cna file.
3. Select the .cna file and click Open.

Now, the .cna script is loaded into Cobalt Strike and ready to use.

# Navigate to the directory containing the .cna file
cd path/to/your/cna/file

# Load the .cna file into Cobalt Strike
# This is done manually through the Cobalt Strike GUI

Here's how to use it:

# Usage
interactive_execute_shellcode [options]

# Options (specified in any order)
--process <process>            # Specify a process to use for the BOF
--technique <technique>        # Specify which technique to use in the BOF
--shellcode <shellcode file>   # Specify the shellcode file to use

# Example
interactive_execute_shellcode --process notepad.exe --technique NtCreateThreadEx --shellcode shellcode.bin