Function at 0x403630
Capabilities:
Accept command line arguments
Copy file
Create directory
Delete file
Get common file path
Get file system object information
Print debug messages
Set current directory
Shutdown system
Terminate process

Disassembly:
sub esp, 0xba8
push ebx
push ebp
push esi
push edi
xor ebx, ebx
push 0xa27
lea eax, [esp + 0x195]
push ebx
push eax
mov dword [esp + 0x28], ebx
mov dword [esp + 0x1c], str.Error_writing_temporary_file._Make_sure_your_temp_folder_is_valid.
xor edi, edi
mov byte [esp + 0x20], 0x20
mov byte [esp + 0x19c], bl
call fcn.004070f9
add esp, 0xc
lea eax, [esp + 0x190]
push eax
call dword [sym.imp.KERNEL32.dll_OutputDebugStringA]
mov esi, dword [sym.imp.ole32.dll_OleInitialize]
push ebx
call esi
call dword [sym.imp.COMCTL32.dll_InitCommonControls]
call dword [sym.imp.ole32.dll_OleUninitialize]
push 0x8001
call dword [sym.imp.KERNEL32.dll_SetErrorMode]
push ebx
call esi
push 8
mov dword [0x4488d8], eax
call fcn.00405e5b
push ebx
push 0x160
mov dword [0x4487e0], eax
lea eax, [esp + 0x38]
push eax
push ebx
push 0x408a43
call dword [sym.imp.SHELL32.dll_SHGetFileInfoA]
push str.NSIS_Error
push 0x4447e0
call fcn.00405bc6
call dword [sym.imp.KERNEL32.dll_GetCommandLineA]
push eax
mov esi, 0x471000
push esi
call fcn.00405bc6
push ebx
call dword [sym.imp.KERNEL32.dll_GetModuleHandleA]
cmp byte [0x471000], 0x22
mov dword [0x4487e8], eax
mov eax, esi
jne 0x403707
mov byte [esp + 0x14], 0x22
mov eax, 0x471001
push dword [esp + 0x14]
push eax
call fcn.0040595b
push eax
call dword [sym.imp.USER32.dll_CharNextA]
mov dword [esp + 0x18], eax
jmp 0x403781
cmp cl, 0x20
jne 0x403729
inc eax
cmp byte [eax], 0x20
je 0x403723
cmp byte [eax], 0x22
mov byte [esp + 0x14], 0x20
jne 0x403739
inc eax
mov byte [esp + 0x14], 0x22
cmp byte [eax], 0x2f
jne 0x403771
inc eax
cmp byte [eax], 0x53
jne 0x403752
mov cl, byte [eax + 1]
or cl, 0x20
cmp cl, 0x20
jne 0x403752
or edi, 2
cmp dword [eax], 0x4352434e
jne 0x403768
mov cl, byte [eax + 4]
or cl, 0x20
cmp cl, 0x20
jne 0x403768
or edi, 4
cmp dword [eax - 2], 0x3d442f20
je 0x403789
push dword [esp + 0x14]
push eax
call fcn.0040595b
cmp byte [eax], 0x22
jne 0x403781
inc eax
mov cl, byte [eax]
cmp cl, bl
jne 0x40371e
jmp 0x40379a
mov dword [eax - 2], ebx
add eax, 2
push eax
push 0x473000
call fcn.00405bc6
mov ebp, 0x47b000
push ebp
push 0x2000
call dword [sym.imp.KERNEL32.dll_GetTempPathA]
call fcn.004035d2
test eax, eax
jne 0x4037d8
push 0x1ffb
push ebp
call dword [sym.imp.KERNEL32.dll_GetWindowsDirectoryA]
push str.Temp
push ebp
call sub.KERNEL32.dll_lstrcatA
call fcn.004035d2
test eax, eax
je 0x40385d
push 0x479000
call dword [sym.imp.KERNEL32.dll_DeleteFileA]
push edi
call fcn.0040338d
mov dword [esp + 0x10], eax
cmp eax, ebx
jne 0x40385d
cmp dword [0x448844], ebx
je 0x403846
push ebx
push esi
call fcn.0040595b
mov edi, eax
jmp 0x40380d
cmp dword [edi], 0x3d3f5f20
je 0x403811
dec edi
cmp edi, esi
jae 0x403804
mov dword [esp + 0x10], str.Error_launching_installer
cmp edi, esi
jb 0x403888
mov byte [edi], bl
add edi, 4
push edi
call fcn.00405f19
test eax, eax
je 0x40385d
push edi
push 0x473000
call fcn.00405bc6
push edi
push 0x475000
call fcn.00405bc6
mov dword [esp + 0x10], ebx
or dword [0x4488cc], 0xffffffff
call fcn.004055ab
push 1
mov dword [esp + 0x20], eax
call fcn.00405c82
call fcn.00403606
call dword [sym.imp.ole32.dll_OleUninitialize]
cmp dword [esp + 0x10], ebx
je 0x403957
push 0x200010
push dword [esp + 0x14]
call fcn.004058f5
push 2
call dword [sym.imp.KERNEL32.dll_ExitProcess]
push str.nsu.tmp
push ebp
call sub.KERNEL32.dll_lstrcatA
mov esi, 0x477000
push esi
push ebp
call dword [sym.imp.KERNEL32.dll_lstrcmpiA]
test eax, eax
je 0x40385d
push ebx
push ebp
call dword [sym.imp.KERNEL32.dll_CreateDirectoryA]
push ebp
call dword [sym.imp.KERNEL32.dll_SetCurrentDirectoryA]
cmp byte [0x473000], bl
jne 0x4038c6
push esi
push 0x473000
call fcn.00405bc6
push dword [esp + 0x18]
push section..ndata
call fcn.00405bc6
push 0x41
pop eax
push 0x1a
mov word [0x44b000], ax
pop edi
mov esi, 0x4289a0
mov eax, dword [0x4487ec]
push dword [eax + 0x120]
push esi
call fcn.00405ff1
push esi
call dword [sym.imp.KERNEL32.dll_DeleteFileA]
cmp dword [esp + 0x10], ebx
je 0x403942
push 1
push esi
push 0x47f000
call dword [sym.imp.KERNEL32.dll_CopyFileA]
test eax, eax
je 0x403942
push ebx
push esi
call fcn.0040624b
mov eax, dword [0x4487ec]
push dword [eax + 0x124]
push esi
call fcn.00405ff1
push esi
call fcn.00405894
cmp eax, ebx
je 0x403942
push eax
call dword [sym.imp.KERNEL32.dll_CloseHandle]
mov dword [esp + 0x10], ebx
inc byte [0x44b000]
dec edi
jne 0x4038e5
push ebx
push ebp
call fcn.0040624b
jmp 0x40385d
cmp dword [0x4488b4], ebx
je 0x4039da
push 3
call fcn.00405e5b
push 4
mov ebp, eax
call fcn.00405e5b
push 5
mov esi, eax
call fcn.00405e5b
mov edi, eax
cmp ebp, ebx
je 0x4039c6
cmp esi, ebx
je 0x4039c6
cmp edi, ebx
je 0x4039c6
lea eax, [esp + 0x18]
push eax
push 0x28
call dword [sym.imp.KERNEL32.dll_GetCurrentProcess]
push eax
call ebp
test eax, eax
je 0x4039c6
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 + 0x2c]
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 0x4039da
push 9
call fcn.0040141a
mov eax, dword [0x4488cc]
cmp eax, 0xffffffff
je 0x4039e8
mov dword [esp + 0x1c], eax
push dword [esp + 0x1c]
jmp 0x403882