Function at 0x4033ec
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 ebx, ebx
pop esi
mov dword [esp + 0x18], ebx
mov dword [esp + 0x10], str.Error_writing_temporary_file._Make_sure_your_temp_folder_is_valid.
mov dword [esp + 0x14], ebx
call dword [sym.imp.COMCTL32.dll_InitCommonControls]
push 0x8001
call dword [sym.imp.KERNEL32.dll_SetErrorMode]
push ebx
call dword [sym.imp.ole32.dll_OleInitialize]
push 8
mov dword [0x4352d8], eax
call fcn.00405a3c
push ebx
push 0x2b4
mov dword [0x4351e0], eax
lea eax, [esp + 0x38]
push eax
push ebx
push 0x40863c
call dword [sym.imp.SHELL32.dll_SHGetFileInfoW]
push str.NSIS_Error
push 0x4341e0
call fcn.00405937
call dword [sym.imp.KERNEL32.dll_GetCommandLineW]
push eax
mov edi, 0x440000
push edi
call fcn.00405937
push ebx
call dword [sym.imp.KERNEL32.dll_GetModuleHandleW]
cmp word [0x440000], 0x22
mov dword [0x4351e8], eax
mov eax, edi
jne 0x40348c
push 0x22
pop esi
mov eax, 0x440002
push esi
push eax
call fcn.00405636
push eax
call dword [sym.imp.USER32.dll_CharNextW]
mov esi, eax
mov dword [esp + 0x1c], esi
jmp 0x40351e
push 0x20
pop ebp
cmp ax, bp
jne 0x4034b1
inc esi
inc esi
cmp word [esi], bp
je 0x4034aa
cmp word [esi], 0x22
jne 0x4034bc
inc esi
push 0x22
inc esi
pop ebp
cmp word [esi], 0x2f
jne 0x40350d
inc esi
inc esi
cmp word [esi], 0x53
jne 0x4034d6
cmp word [esi + 2], 0x20
jne 0x4034d6
or dword [esp + 0x14], 2
push 4
push str.NCRC
push esi
call fcn.00403370
add esp, 0xc
test eax, eax
jne 0x4034f6
cmp word [esi + 8], 0x20
jne 0x4034f6
or dword [esp + 0x14], 4
push 4
lea eax, [esi - 4]
push str.__D
push eax
call fcn.00403370
add esp, 0xc
test eax, eax
je 0x40352c
push ebp
push esi
call fcn.00405636
mov esi, eax
cmp word [esi], 0x22
jne 0x40351e
inc esi
inc esi
movzx eax, word [esi]
cmp ax, bx
jne 0x4034a2
jmp 0x403549
push 8
lea eax, [esi - 4]
push ebx
push eax
call fcn.0040752e
add esp, 0xc
add esi, 4
push esi
push 0x440800
call fcn.00405937
mov ebp, 0x442800
push ebp
push 0x400
call dword [sym.imp.KERNEL32.dll_GetTempPathW]
call fcn.0040333c
test eax, eax
jne 0x403587
push 0x3fb
push ebp
call dword [sym.imp.KERNEL32.dll_GetWindowsDirectoryW]
push str.Temp
push ebp
call sub.KERNEL32.dll_lstrcatW
call fcn.0040333c
test eax, eax
je 0x403616
push 0x442000
call dword [sym.imp.KERNEL32.dll_DeleteFileW]
push dword [esp + 0x14]
call fcn.004030f7
cmp eax, ebx
mov dword [esp + 0x10], eax
jne 0x403616
cmp dword [0x435244], ebx
je 0x403606
push ebx
push edi
call fcn.00405636
mov esi, eax
jmp 0x4035cc
push 4
push str.___
push esi
call fcn.00403370
add esp, 0xc
test eax, eax
je 0x4035d0
dec esi
dec esi
cmp esi, edi
jae 0x4035b6
cmp esi, edi
mov dword [esp + 0x10], str.Error_launching_installer
jb 0x403641
mov word [esi], bx
add esi, 8
push esi
call fcn.00405eaf
test eax, eax
je 0x403616
push esi
push 0x440800
call fcn.00405937
push esi
push 0x441000
call fcn.00405937
mov dword [esp + 0x10], ebx
or dword [0x4352cc], 0xffffffff
call fcn.00405295
mov dword [esp + 0x18], eax
call fcn.004033c7
call dword [sym.imp.ole32.dll_OleUninitialize]
cmp dword [esp + 0x10], ebx
je 0x403718
push 0x200010
push dword [esp + 0x14]
call fcn.004055d2
push 2
call dword [sym.imp.KERNEL32.dll_ExitProcess]
push 0x4085e0
push ebp
call sub.KERNEL32.dll_lstrcatW
mov esi, 0x441800
push esi
push ebp
call dword [sym.imp.KERNEL32.dll_lstrcmpiW]
test eax, eax
je 0x403616
push ebx
push ebp
call dword [sym.imp.KERNEL32.dll_CreateDirectoryW]
push ebp
call dword [sym.imp.KERNEL32.dll_SetCurrentDirectoryW]
cmp word [0x440800], bx
jne 0x403680
push esi
push 0x440800
call fcn.00405937
push dword [esp + 0x1c]
push section..ndata
call fcn.00405937
push 0x4085dc
push 0x436800
call fcn.00405937
push 0x1a
pop edi
mov esi, 0x42a518
mov eax, dword [0x4351ec]
push dword [eax + 0x120]
push esi
call fcn.00405f37
push esi
call dword [sym.imp.KERNEL32.dll_DeleteFileW]
cmp dword [esp + 0x10], ebx
je 0x403702
push 1
push esi
push 0x443800
call dword [sym.imp.KERNEL32.dll_CopyFileW]
test eax, eax
je 0x403702
push ebx
push esi
call fcn.00406390
mov eax, dword [0x4351ec]
push dword [eax + 0x124]
push esi
call fcn.00405f37
push esi
call fcn.00405571
cmp eax, ebx
je 0x403702
push eax
call dword [sym.imp.KERNEL32.dll_CloseHandle]
mov dword [esp + 0x10], ebx
inc word [0x436800]
dec edi
jne 0x4036a5
push ebx
push ebp
call fcn.00406390
jmp 0x403616
cmp dword [0x4352b4], ebx
je 0x40379b
push 3
call fcn.00405a3c
push 4
mov ebp, eax
call fcn.00405a3c
push 5
mov esi, eax
call fcn.00405a3c
cmp ebp, ebx
mov edi, eax
je 0x403787
cmp esi, ebx
je 0x403787
cmp edi, ebx
je 0x403787
lea eax, [esp + 0x1c]
push eax
push 0x28
call dword [sym.imp.KERNEL32.dll_GetCurrentProcess]
push eax
call ebp
test eax, eax
je 0x403787
lea eax, [esp + 0x24]
push eax
push str.SeShutdownPrivilege
push ebx
call esi
push ebx
push ebx
push ebx
lea eax, [esp + 0x2c]
push eax
push ebx
push dword [esp + 0x30]
mov dword [esp + 0x38], 1
mov dword [esp + 0x44], 2
call edi
push ebx
push 2
call dword [sym.imp.USER32.dll_ExitWindowsEx]
test eax, eax
jne 0x40379b
push 9
call fcn.00401411
mov eax, dword [0x4352cc]
cmp eax, 0xffffffff
je 0x4037a9
mov dword [esp + 0x18], eax
push dword [esp + 0x18]
jmp 0x40363b