Function at 0x403570
Capabilities:
Accept command line arguments
Copy file
Create directory
Delete file
Get common file path
Get file system object information
Set current directory
Shutdown system
Terminate process

Disassembly:
sub esp, 0x2d4
push ebx
push ebp
push esi
push edi
push 0x20
xor ebp, ebp
pop esi
mov dword [esp + 0x18], ebp
mov dword [esp + 0x14], str.Error_writing_temporary_file._Make_sure_your_temp_folder_is_valid.
mov dword [esp + 0x10], ebp
call dword [sym.imp.COMCTL32.dll_InitCommonControls]
push 0x8001
call dword [sym.imp.KERNEL32.dll_SetErrorMode]
push ebp
call dword [sym.imp.ole32.dll_OleInitialize]
push 8
mov dword [0x474898], eax
call fcn.00405dad
push ebp
push 0x2b4
mov dword [0x4747b0], eax
lea eax, [esp + 0x38]
push eax
push ebp
push 0x408660
call dword [sym.imp.SHELL32.dll_SHGetFileInfoW]
push str.NSIS_Error
push 0x46c7a0
call fcn.00405ca8
call dword [sym.imp.KERNEL32.dll_GetCommandLineW]
push eax
mov edi, 0x4c50a0
push edi
call fcn.00405ca8
push ebp
call dword [sym.imp.KERNEL32.dll_GetModuleHandleW]
cmp word [0x4c50a0], 0x22
mov dword [0x4747b8], eax
mov eax, edi
jne 0x403610
push 0x22
pop esi
mov eax, 0x4c50a2
push esi
push eax
call fcn.004059a5
push eax
call dword [sym.imp.USER32.dll_CharNextW]
mov esi, eax
mov dword [esp + 0x1c], esi
jmp 0x4036b7
push 0x20
pop ebx
cmp ax, bx
jne 0x403639
add esi, 2
cmp word [esi], bx
je 0x403631
cmp word [esi], 0x22
jne 0x403645
push 0x22
add esi, 2
pop ebx
cmp word [esi], 0x2f
jne 0x4036a5
add esi, 2
cmp word [esi], 0x53
jne 0x403667
movzx eax, word [esi + 2]
cmp eax, 0x20
je 0x403662
cmp ax, bp
jne 0x403667
or dword [esp + 0x10], 2
push 4
push str.NCRC
push esi
call fcn.00403477
add esp, 0xc
test eax, eax
jne 0x40368e
movzx eax, word [esi + 8]
cmp eax, 0x20
je 0x403689
cmp ax, bp
jne 0x40368e
or dword [esp + 0x10], 4
push 4
lea eax, [esi - 4]
push str.__D
push eax
call fcn.00403477
add esp, 0xc
test eax, eax
je 0x4036c5
push ebx
push esi
call fcn.004059a5
mov esi, eax
cmp word [esi], 0x22
jne 0x4036b7
add esi, 2
movzx eax, word [esi]
cmp ax, bp
jne 0x403629
jmp 0x4036e2
push 8
lea eax, [esi - 4]
push ebp
push eax
call fcn.00407418
add esp, 0xc
add esi, 4
push esi
push 0x4c90a8
call fcn.00405ca8
mov ebx, 0x4d90c8
push ebx
push 0x2004
call dword [sym.imp.KERNEL32.dll_GetTempPathW]
call fcn.00403443
test eax, eax
jne 0x403720
push 0x1fff
push ebx
call dword [sym.imp.KERNEL32.dll_GetWindowsDirectoryW]
push str.Temp
push ebx
call sub.KERNEL32.dll_lstrcatW
call fcn.00403443
test eax, eax
je 0x4037b2
push 0x4d50c0
call dword [sym.imp.KERNEL32.dll_DeleteFileW]
push dword [esp + 0x10]
call fcn.004031a8
mov dword [esp + 0x14], eax
cmp eax, ebp
jne 0x4037b2
cmp dword [0x474804], ebp
je 0x4037a2
push ebp
push edi
call fcn.004059a5
mov esi, eax
jmp 0x403766
push 4
push str.___
push esi
call fcn.00403477
add esp, 0xc
test eax, eax
je 0x40376a
sub esi, 2
cmp esi, edi
jae 0x40374f
mov dword [esp + 0x14], str.Error_launching_installer
cmp esi, edi
jb 0x4037dd
xor eax, eax
mov word [esi], ax
add esi, 8
push esi
call fcn.0040622f
test eax, eax
je 0x4037b2
push esi
push 0x4c90a8
call fcn.00405ca8
push esi
push 0x4cd0b0
call fcn.00405ca8
mov dword [esp + 0x14], ebp
or dword [0x47488c], 0xffffffff
call fcn.004055ea
mov dword [esp + 0x18], eax
call fcn.0040352e
call dword [sym.imp.ole32.dll_OleUninitialize]
cmp dword [esp + 0x14], ebp
je 0x403946
push 0x200010
push dword [esp + 0x18]
call fcn.0040593f
push 2
call dword [sym.imp.KERNEL32.dll_ExitProcess]
push 0x408604
push ebx
call sub.KERNEL32.dll_lstrcatW
mov esi, 0x4d10b8
push esi
push ebx
call dword [sym.imp.KERNEL32.dll_lstrcmpiW]
test eax, eax
je 0x4037b2
push ebp
push ebx
call dword [sym.imp.KERNEL32.dll_CreateDirectoryW]
push ebx
call dword [sym.imp.KERNEL32.dll_SetCurrentDirectoryW]
cmp word [0x4c90a8], bp
jne 0x40381c
push esi
push 0x4c90a8
call fcn.00405ca8
push dword [esp + 0x1c]
push section..ndata
call fcn.00405ca8
push 0x408600
push 0x479008
call fcn.00405ca8
mov dword [esp + 0x10], 0x1a
mov esi, 0x4321d8
mov ebp, 0x4361e0
mov edi, 0x4363e0
xor eax, eax
mov word [0x4361e0], ax
mov eax, dword [0x4747bc]
push dword [eax + 0x120]
push esi
call fcn.004062b6
push esi
call dword [sym.imp.KERNEL32.dll_DeleteFileW]
cmp dword [esp + 0x14], 0
je 0x403926
push 1
push esi
push 0x4e10d8
call dword [sym.imp.KERNEL32.dll_CopyFileW]
test eax, eax
je 0x403926
push 0
push esi
call fcn.00406719
call fcn.004034d0
push eax
push str._ppid_d
push ebp
call dword [sym.imp.USER32.dll_wsprintfW]
mov eax, dword [0x4747bc]
add esp, 0xc
push dword [eax + 0x124]
push esi
call fcn.004062b6
push esi
push edi
call fcn.00405ca8
push 0
push edi
call fcn.004059a5
mov ebx, eax
jmp 0x4038e9
push 4
push str.___
push ebx
call fcn.00403477
add esp, 0xc
test eax, eax
je 0x4038ed
sub ebx, 2
cmp ebx, edi
jae 0x4038d2
mov eax, ebx
sub eax, edi
push ebp
sar eax, 1
xor ecx, ecx
push esi
mov word [eax*2 + 0x4321d8], cx
call sub.KERNEL32.dll_lstrcatW
push ebx
push esi
call sub.KERNEL32.dll_lstrcatW
push esi
call fcn.004058de
test eax, eax
je 0x403921
push eax
call dword [sym.imp.KERNEL32.dll_CloseHandle]
and dword [esp + 0x14], 0
mov ebx, 0x4d90c8
inc word [0x479008]
dec dword [esp + 0x10]
jne 0x403850
push 0
push ebx
call fcn.00406719
xor ebp, ebp
jmp 0x4037b2
cmp dword [0x474874], ebp
je 0x4039c9
push 3
call fcn.00405dad
push 4
mov ebx, eax
call fcn.00405dad
push 5
mov esi, eax
call fcn.00405dad
mov edi, eax
cmp ebx, ebp
je 0x4039b5
cmp esi, ebp
je 0x4039b5
cmp edi, ebp
je 0x4039b5
lea eax, [esp + 0x1c]
push eax
push 0x28
call dword [sym.imp.KERNEL32.dll_GetCurrentProcess]
push eax
call ebx
test eax, eax
je 0x4039b5
lea eax, [esp + 0x24]
push eax
push str.SeShutdownPrivilege
push ebp
call esi
push ebp
push ebp
push ebp
lea eax, [esp + 0x2c]
push eax
push ebp
push dword [esp + 0x30]
mov dword [esp + 0x38], 1
mov dword [esp + 0x44], 2
call edi
push ebp
push 2
call dword [sym.imp.USER32.dll_ExitWindowsEx]
test eax, eax
jne 0x4039c9
push 9
call fcn.0040141d
mov eax, dword [0x47488c]
cmp eax, 0xffffffff
je 0x4039d7
mov dword [esp + 0x18], eax
push dword [esp + 0x18]
jmp 0x4037d7