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DLL Injection via Direct Syscalls w/ SysCaller (Java/JNA)

Requirements

JDK 21
JNA jar on classpath (jna-5.x.jar)
SysCaller.dll and target test.dll placed alongside the Java sources (or on PATH)

Usage

Compile: javac -cp .;jna-5.18.1.jar InjectDLL.java
Run: java -cp .;jna-5.18.1.jar InjectDLL <dll_path>

Notes

The code resolves the DLL absolute path via GetFullPathNameA to avoid remote LoadLibrary path issues.
Uses the same allocation/write/thread creation flow as other samples.