A way to avoid using VirtualAllocEx/WriteProcessMemory to inject shellcode into a process. You need access to modify the target executable.
- Write shellcode to the target's .rsrc as a bitmap using the UpdateResource APIs
- Spawn the exe suspended
- Calculate the shellcode location by parsing the PE header
- VirtualProtectEx to RX
- Get/SetThreadContext to execute
PEResourceInject.exe -exe <C:\path\to\target.exe> -bin <C:\Path\to\raw\shellcode.bin>
Tested with:
- MS Office/VLC/FireFox
- Shellcode: MSFVenom/Apollo