Function at 0x403438
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 + 0x10], str.Error_writing_temporary_file._Make_sure_your_temp_folder_is_valid.
mov dword [esp + 0x14], 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 [0x7a8e18], eax
call fcn.00405cb1
push ebp
push 0x2b4
mov dword [0x7a8d20], eax
lea eax, [esp + 0x38]
push eax
push ebp
push 0x40856c
call dword [sym.imp.SHELL32.dll_SHGetFileInfoW]
push str.NSIS_Error
push 0x7a7d20
call fcn.00405b29
call dword [sym.imp.KERNEL32.dll_GetCommandLineW]
push eax
mov edi, 0x7b3000
push edi
call fcn.00405b29
push ebp
call dword [sym.imp.KERNEL32.dll_GetModuleHandleW]
cmp word [0x7b3000], 0x22
mov dword [0x7a8d28], eax
mov eax, edi
jne 0x4034d8
push 0x22
pop esi
mov eax, 0x7b3002
push esi
push eax
call fcn.004057b4
push eax
call dword [sym.imp.USER32.dll_CharNextW]
mov esi, eax
mov dword [esp + 0x1c], esi
jmp 0x40357d
push 0x20
pop ebx
cmp ax, bx
jne 0x403500
inc esi
inc esi
cmp word [esi], bx
je 0x4034f9
cmp word [esi], 0x22
jne 0x40350b
inc esi
push 0x22
inc esi
pop ebx
cmp word [esi], 0x2f
jne 0x40356c
inc esi
inc esi
cmp word [esi], 0x53
jne 0x40352d
movzx eax, word [esi + 2]
cmp ax, 0x20
je 0x403528
cmp ax, bp
jne 0x40352d
or dword [esp + 0x14], 2
push 4
push str.NCRC
push esi
call fcn.004033b7
add esp, 0xc
test eax, eax
jne 0x403555
movzx eax, word [esi + 8]
cmp ax, 0x20
je 0x403550
cmp ax, bp
jne 0x403555
or dword [esp + 0x14], 4
push 4
lea eax, [esi - 4]
push str.__D
push eax
call fcn.004033b7
add esp, 0xc
test eax, eax
je 0x40358b
push ebx
push esi
call fcn.004057b4
mov esi, eax
cmp word [esi], 0x22
jne 0x40357d
inc esi
inc esi
movzx eax, word [esi]
cmp ax, bp
jne 0x4034f1
jmp 0x4035a8
push 8
lea eax, [esi - 4]
push ebp
push eax
call fcn.0040780f
add esp, 0xc
add esi, 4
push esi
push 0x7b3800
call fcn.00405b29
mov ebx, 0x7b5800
push ebx
push 0x400
call dword [sym.imp.KERNEL32.dll_GetTempPathW]
call fcn.00403383
test eax, eax
jne 0x4035e6
push 0x3fb
push ebx
call dword [sym.imp.KERNEL32.dll_GetWindowsDirectoryW]
push str.Temp
push ebx
call sub.KERNEL32.dll_lstrcatW
call fcn.00403383
test eax, eax
je 0x403675
push 0x7b5000
call dword [sym.imp.KERNEL32.dll_DeleteFileW]
push dword [esp + 0x14]
call fcn.0040313e
cmp eax, ebp
mov dword [esp + 0x10], eax
jne 0x403675
cmp dword [0x7a8d84], ebp
je 0x403665
push ebp
push edi
call fcn.004057b4
mov esi, eax
jmp 0x40362b
push 4
push str.___
push esi
call fcn.004033b7
add esp, 0xc
test eax, eax
je 0x40362f
dec esi
dec esi
cmp esi, edi
jae 0x403615
cmp esi, edi
mov dword [esp + 0x10], str.Error_launching_installer
jb 0x4036a0
mov word [esi], bp
add esi, 8
push esi
call fcn.00406128
test eax, eax
je 0x403675
push esi
push 0x7b3800
call fcn.00405b29
push esi
push 0x7b4000
call fcn.00405b29
mov dword [esp + 0x10], ebp
or dword [0x7a8e0c], 0xffffffff
call fcn.004053fe
mov dword [esp + 0x18], eax
call fcn.0040340e
call dword [sym.imp.ole32.dll_OleUninitialize]
cmp dword [esp + 0x10], ebp
je 0x403777
push 0x200010
push dword [esp + 0x14]
call fcn.00405750
push 2
call dword [sym.imp.KERNEL32.dll_ExitProcess]
push 0x408510
push ebx
call sub.KERNEL32.dll_lstrcatW
mov esi, 0x7b4800
push esi
push ebx
call dword [sym.imp.KERNEL32.dll_lstrcmpiW]
test eax, eax
je 0x403675
push ebp
push ebx
call dword [sym.imp.KERNEL32.dll_CreateDirectoryW]
push ebx
call dword [sym.imp.KERNEL32.dll_SetCurrentDirectoryW]
cmp word [0x7b3800], bp
jne 0x4036df
push esi
push 0x7b3800
call fcn.00405b29
push dword [esp + 0x1c]
push section..ndata
call fcn.00405b29
push 0x40850c
push 0x7a9800
call fcn.00405b29
push 0x1a
pop edi
mov esi, 0x79f1d8
mov eax, dword [0x7a8d2c]
push dword [eax + 0x120]
push esi
call fcn.0040625b
push esi
call dword [sym.imp.KERNEL32.dll_DeleteFileW]
cmp dword [esp + 0x10], ebp
je 0x403761
push 1
push esi
push 0x7b6800
call dword [sym.imp.KERNEL32.dll_CopyFileW]
test eax, eax
je 0x403761
push ebp
push esi
call fcn.004066b4
mov eax, dword [0x7a8d2c]
push dword [eax + 0x124]
push esi
call fcn.0040625b
push esi
call fcn.004056ef
cmp eax, ebp
je 0x403761
push eax
call dword [sym.imp.KERNEL32.dll_CloseHandle]
mov dword [esp + 0x10], ebp
inc word [0x7a9800]
dec edi
jne 0x403704
push ebp
push ebx
call fcn.004066b4
jmp 0x403675
cmp dword [0x7a8df4], ebp
je 0x4037fa
push 3
call fcn.00405cb1
push 4
mov ebx, eax
call fcn.00405cb1
push 5
mov esi, eax
call fcn.00405cb1
cmp ebx, ebp
mov edi, eax
je 0x4037e6
cmp esi, ebp
je 0x4037e6
cmp edi, ebp
je 0x4037e6
lea eax, [esp + 0x1c]
push eax
push 0x28
call dword [sym.imp.KERNEL32.dll_GetCurrentProcess]
push eax
call ebx
test eax, eax
je 0x4037e6
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 0x4037fa
push 9
call fcn.00401411
mov eax, dword [0x7a8e0c]
cmp eax, 0xffffffff
je 0x403808
mov dword [esp + 0x18], eax
push dword [esp + 0x18]
jmp 0x40369a