[SECTION .text] global _start _start: ; Save state of rbx and stack push rbx mov rbx, rsp ; Set up stack for function call to GetProcAddress sub rsp, 0x20 and sp, 0xffc0 ; Call getprocaddress mov rcx, 0x4141414141414141 ; DllHandle, set by PS mov rdx, 0x4141414141414141 ; Ptr to FuncName string, set by PS mov rax, 0x4141414141414141 ; GetProcAddress address, set by PS call rax ; Store the result mov rcx, 0x4141414141414141 ; Ptr to buffer to save result,set by PS mov [rcx], rax ; Restore stack mov rsp, rbx pop rbx ret