Loader no longer touches disk: drop the LoadLibraryW path that
extracted OpenZen.dll to %TEMP%\OpenZenLoader and replace it with
an in-process PE loader that maps the embedded DLL straight into
the target Java process.
native/loader (new manual_map.cpp/.h):
- VirtualAllocEx in the remote process for SizeOfImage,
locally apply relocations + IAT patching (kernel32 etc. are
KnownDLLs so local GetProcAddress addresses are valid in the
remote), WriteProcessMemory the finished image once,
VirtualProtectEx to match section characteristics, then run a
minimal x64 trampoline shellcode that calls DllMain with
DLL_PROCESS_ATTACH using the proper ABI (shadow space,
16-byte stack alignment).
- embedded_dll.cpp now hands back a pointer into the .rsrc
section instead of writing the DLL out. injector.cpp shrinks
to a 14-line shim around inject_in_memory.
native (top-level CMakeLists.txt):
- Force /MT (CMAKE_MSVC_RUNTIME_LIBRARY = MultiThreaded) for
both the DLL and the loader EXE. Without this the manual
mapper's local-address import resolution trips over
vcruntime140 / ucrtbase, which are not KnownDLLs and may have
different bases in the target process - leading to NULL
derefs inside msvcp140 after injection. With /MT the only
import surface left is KERNEL32.
native/dll (jar_extract.cpp):
- Replace FindResource/LoadResource/SizeofResource with a
hand-rolled PE resource directory walker. FindResource paths
through LdrFindResource_U, which depends on the PEB.Ldr table
that manual-mapped modules are not part of, so the standard
API returns NULL for the embedded zen.jar after injection.
native/loader UI:
- Drop the now-pointless DLL Path edit + Browse button.
- Add per-process "Window Class" column harvested via
GetClassNameW alongside the existing window title.
- Add a Minecraft Only checkbox (default on): show only rows
whose window title startsWith "Minecraft" and does not
contain "Launcher", filtering HMCL / MultiMC / generic Java
apps out of the picker.
build.gradle:
- Add cleanNative (Delete) hooked into clean so wiping the
project also removes native/build/ and the staged
native/zen.jar (CMake would otherwise hold onto the previous
configure).
gradle.properties:
- Fill in the real mod metadata (id=hey, name=OpenZen,
authors=Shirona1337, group=io.github.openzen, description).
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Shirona1337