Athena is a stealthy injector that creates a RW section in the Athena process then maps that section as RX into a remote process. Shellcode is then written to the remote processand executed. This project was heavily inspired by Urban Bishop.
Replace the prexisting buf array with your shellcode.
unsigned char buf[] = "\x90\x90\x90\x90";
Athena.exe notepad.exe
The shellcode used in Athena by default is from a project called donut created with the following settings.
MsgBox "Hello From Shellcode!", VBOKOnly
donut.exe C:\Path\to\VB\file.vbs -f 4
Then copy the code from loader.c into the buf array and you're set.