Function at 0x4032da
Capabilities:
Accept command line arguments
Check os version
Copy file
Delete file
Get common file path
Get file system object information
Set current directory
Set environment variable
Shutdown system
Terminate process

Disassembly:
sub esp, 0x17c
push ebx
push ebp
push esi
push edi
xor ebp, ebp
mov byte [esp + 0x10], 0x20
push 0x8001
mov dword [esp + 0x18], ebp
mov edi, str.Error_writing_temporary_file._Make_sure_your_temp_folder_is_valid.
xor ebx, ebx
call dword [sym.imp.KERNEL32.dll_SetErrorMode]
call dword [sym.imp.KERNEL32.dll_GetVersion]
cmp ax, 6
je 0x40331e
push ebx
call fcn.0040603c
test eax, eax
je 0x40331e
push 0xc00
call eax
push 0x40844b
call dword [sym.imp.KERNEL32.dll_SetDllDirectoryA]
mov esi, str.UXTHEME
push esi
call fcn.00405a46
push esi
call dword [sym.imp.KERNEL32.dll_lstrlenA]
inc esi
add esi, eax
cmp byte [esi], bl
jne 0x40332e
push 9
call fcn.0040603c
push 7
call fcn.0040603c
mov dword [0x42e8b0], eax
call dword [sym.imp.COMCTL32.dll_InitCommonControls]
push 0
call dword [sym.imp.ole32.dll_OleInitialize]
push 0
push 0x160
mov dword [0x42f124], eax
lea eax, [esp + 0x34]
push eax
push 0
push 0x40844b
call dword [sym.imp.SHELL32.dll_SHGetFileInfoA]
push str.NSIS_Error
push 0x42e8c0
call fcn.0040624f
call dword [sym.imp.KERNEL32.dll_GetCommandLineA]
push eax
mov esi, 0x435000
push esi
call fcn.0040624f
push 0
call dword [sym.imp.KERNEL32.dll_GetModuleHandleA]
cmp byte [0x435000], 0x22
mov dword [0x42e8b4], eax
mov eax, esi
jne 0x4033c4
mov byte [esp + 0x10], 0x22
mov eax, 0x435001
push dword [esp + 0x10]
push eax
call fcn.00405d36
push eax
call dword [sym.imp.USER32.dll_CharNextA]
mov dword [esp + 0x18], eax
jmp 0x403445
push 0x20
pop edx
cmp cl, dl
jne 0x4033e7
inc eax
cmp byte [eax], dl
je 0x4033e2
cmp byte [eax], 0x22
mov byte [esp + 0x10], dl
jne 0x4033f6
inc eax
mov byte [esp + 0x10], 0x22
cmp byte [eax], 0x2f
jne 0x403435
inc eax
cmp byte [eax], 0x53
jne 0x403416
mov cl, byte [eax + 1]
cmp cl, dl
je 0x40340c
test cl, cl
jne 0x403416
mov dword [0x42f1a0], 1
cmp dword [eax], 0x4352434e
jne 0x40342c
mov cl, byte [eax + 4]
cmp cl, dl
je 0x403429
test cl, cl
jne 0x40342c
or ebx, 4
cmp dword [eax - 2], 0x3d442f20
je 0x40344d
push dword [esp + 0x10]
push eax
call fcn.00405d36
cmp byte [eax], 0x22
jne 0x403445
inc eax
mov cl, byte [eax]
test cl, cl
jne 0x4033db
jmp 0x40345f
mov byte [eax - 2], 0
add eax, 2
push eax
push 0x435400
call fcn.0040624f
mov esi, dword [sym.imp.KERNEL32.dll_GetTempPathA]
push 0x436400
push 0x400
call esi
call fcn.0040375b
test eax, eax
jne 0x4034e5
push 0x3fb
push 0x436400
call dword [sym.imp.KERNEL32.dll_GetWindowsDirectoryA]
push str.Temp
push 0x436400
call sub.KERNEL32.dll_lstrcatA
call fcn.0040375b
test eax, eax
jne 0x4034e5
push 0x436400
push 0x3fc
call esi
push 0x408460
mov esi, 0x436400
push esi
call sub.KERNEL32.dll_lstrcatA
push esi
mov esi, dword [sym.imp.KERNEL32.dll_SetEnvironmentVariableA]
push str.TEMP
call esi
push 0x436400
push 0x40846c
call esi
call fcn.0040375b
test eax, eax
je 0x4036a0
mov ebp, dword [sym.imp.KERNEL32.dll_DeleteFileA]
push 0x436000
call ebp
push ebx
call fcn.00402fc7
mov edi, eax
test edi, edi
jne 0x40369c
cmp dword [0x42f0c0], eax
je 0x403561
xor ebx, ebx
push ebx
push 0x435000
call fcn.00405d36
mov esi, eax
mov eax, 0x435000
jmp 0x403529
cmp dword [esi], 0x3d3f5f20
je 0x40352d
dec esi
cmp esi, eax
jae 0x403520
mov edi, str.Error_launching_installer
cmp esi, eax
jb 0x403574
mov byte [esi], bl
add esi, 4
push esi
call fcn.00405d73
test eax, eax
je 0x403698
push esi
push 0x435400
call fcn.0040624f
push esi
push 0x435800
call fcn.0040624f
mov edi, ebx
or dword [0x42f1ac], 0xffffffff
call fcn.00405377
mov ebp, eax
jmp 0x4036a0
call fcn.00405c80
push str.nsu
push 0x436400
mov esi, eax
call sub.KERNEL32.dll_lstrcatA
test esi, esi
je 0x40359d
push 0x408478
push 0x436400
call sub.KERNEL32.dll_lstrcatA
push str..tmp
push 0x436400
call sub.KERNEL32.dll_lstrcatA
push 0x435c00
push 0x436400
call dword [sym.imp.KERNEL32.dll_lstrcmpiA]
test eax, eax
je 0x403698
push 0x436400
test esi, esi
je 0x4035d4
call fcn.00405759
jmp 0x4035d9
call fcn.00405739
push 0x436400
call dword [sym.imp.KERNEL32.dll_SetCurrentDirectoryA]
cmp byte [0x435400], bl
jne 0x4035fb
push 0x435c00
push 0x435400
call fcn.0040624f
push dword [esp + 0x18]
push section..ndata
call fcn.0040624f
push 0x41
pop eax
push 0x1a
mov word [0x430400], ax
pop esi
mov eax, dword [0x42f0cc]
push dword [eax + 0x120]
push 0x4290f8
call fcn.004057d7
push 0x4290f8
call ebp
test edi, edi
je 0x403682
push 1
push 0x4290f8
push 0x436c00
call dword [sym.imp.KERNEL32.dll_CopyFileA]
test eax, eax
je 0x403682
push ebx
push 0x4290f8
call fcn.00405ae5
mov eax, dword [0x42f0cc]
push dword [eax + 0x124]
push 0x4290f8
call fcn.004057d7
push 0x4290f8
call fcn.00405e0e
test eax, eax
je 0x403682
push eax
call dword [sym.imp.KERNEL32.dll_CloseHandle]
mov edi, ebx
inc byte [0x430400]
sub esi, 1
jne 0x403615
push ebx
push 0x436400
call fcn.00405ae5
mov ebp, ebx
jmp 0x4036a0
mov ebp, dword [esp + 0x14]
call fcn.004032b0
call dword [sym.imp.ole32.dll_OleUninitialize]
test edi, edi
je 0x4036c2
push 0x200010
push edi
call fcn.004061dd
push 2
call dword [sym.imp.KERNEL32.dll_ExitProcess]
cmp dword [0x42f194], 0
je 0x403747
lea eax, [esp + 0x18]
push eax
push 0x28
call dword [sym.imp.KERNEL32.dll_GetCurrentProcess]
push eax
call dword [sym.imp.ADVAPI32.dll_OpenProcessToken]
push 2
xor ebx, ebx
pop edi
test eax, eax
je 0x403718
lea eax, [esp + 0x20]
push eax
push str.SeShutdownPrivilege
push ebx
call dword [sym.imp.ADVAPI32.dll_LookupPrivilegeValueA]
push ebx
push ebx
push ebx
lea eax, [esp + 0x28]
mov dword [esp + 0x28], 1
push eax
push ebx
push dword [esp + 0x2c]
mov dword [esp + 0x40], edi
call dword [sym.imp.ADVAPI32.dll_AdjustTokenPrivileges]
push 4
call fcn.0040603c
mov esi, 0x80040002
test eax, eax
je 0x403734
push esi
push 0x25
push ebx
push ebx
push ebx
call eax
test eax, eax
je 0x403740
push esi
push edi
call dword [sym.imp.USER32.dll_ExitWindowsEx]
test eax, eax
jne 0x403747
push 9
call fcn.00401434
cmp dword [0x42f1ac], 0xffffffff
cmovne ebp, dword [0x42f1ac]
push ebp
jmp 0x4036bc