Function at 0x4033ef
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, 0x2d4
push ebx
push esi
push edi
push 0x20
pop edi
xor ebx, ebx
push 0x8001
mov dword [esp + 0x14], ebx
mov dword [esp + 0x10], str.Error_writing_temporary_file._Make_sure_your_temp_folder_is_valid.
mov dword [esp + 0x1c], ebx
call dword [sym.imp.KERNEL32.dll_SetErrorMode]
call dword [sym.imp.KERNEL32.dll_GetVersion]
cmp ax, 6
je 0x403435
push ebx
call fcn.00405e06
cmp eax, ebx
je 0x403435
push 0xc00
call eax
mov esi, str.UXTHEME
push esi
call fcn.00405d96
push esi
call dword [sym.imp.KERNEL32.dll_lstrlenA]
lea esi, [esi + eax + 1]
cmp byte [esi], bl
jne 0x40343a
push ebp
push 0xa
call fcn.00405e06
push 8
call fcn.00405e06
mov dword [0x429d20], eax
call dword [sym.imp.COMCTL32.dll_InitCommonControls]
push ebx
call dword [sym.imp.ole32.dll_OleInitialize]
push ebx
push 0x2b4
mov dword [0x429e18], eax
lea eax, [esp + 0x38]
push eax
push ebx
push 0x4085e0
call dword [sym.imp.SHELL32.dll_SHGetFileInfoW]
push str.NSIS_Error
push 0x428d20
call fcn.00405c9c
call dword [sym.imp.KERNEL32.dll_GetCommandLineW]
push eax
mov ebp, 0x434000
push ebp
call fcn.00405c9c
push ebx
call dword [sym.imp.KERNEL32.dll_GetModuleHandleW]
push 0x22
pop esi
mov dword [0x429d28], eax
mov eax, ebp
cmp word [0x434000], si
jne 0x4034ce
mov edi, esi
mov eax, 0x434002
push edi
push eax
call fcn.004058ba
push eax
call dword [sym.imp.USER32.dll_CharNextW]
mov dword [esp + 0x18], eax
jmp 0x403568
push 0x20
pop edi
cmp cx, di
jne 0x4034f4
inc eax
inc eax
cmp word [eax], di
je 0x4034ed
mov edx, edi
cmp word [eax], si
jne 0x4034ff
inc eax
inc eax
mov edx, esi
cmp word [eax], 0x2f
jne 0x40355a
inc eax
inc eax
cmp word [eax], 0x53
jne 0x403525
movzx ecx, word [eax + 2]
cmp cx, di
je 0x40351b
cmp cx, bx
jne 0x403525
mov dword [0x429e00], 1
cmp dword [eax], 0x43004e
jne 0x403549
cmp dword [eax + 4], 0x430052
jne 0x403549
movzx ecx, word [eax + 8]
cmp cx, di
je 0x403544
cmp cx, bx
jne 0x403549
or dword [esp + 0x1c], 4
cmp dword [eax - 4], 0x2f0020
jne 0x40355a
cmp dword [eax], 0x3d0044
je 0x403576
push edx
push eax
call fcn.004058ba
cmp word [eax], si
jne 0x403568
inc eax
inc eax
movzx ecx, word [eax]
cmp cx, bx
jne 0x4034e5
jmp 0x40358a
xor ecx, ecx
mov word [eax - 4], cx
add eax, 4
push eax
push 0x434800
call fcn.00405c9c
mov edi, dword [sym.imp.KERNEL32.dll_GetTempPathW]
mov esi, 0x436800
push esi
push 0x400
call edi
call fcn.0040337c
test eax, eax
jne 0x4035fc
push 0x3fb
push esi
call dword [sym.imp.KERNEL32.dll_GetWindowsDirectoryW]
push str.Temp
push esi
call sub.KERNEL32.dll_lstrcatW
call fcn.0040337c
test eax, eax
jne 0x4035fc
push esi
push 0x3fc
call edi
push 0x4085b4
push esi
call sub.KERNEL32.dll_lstrcatW
mov edi, dword [sym.imp.KERNEL32.dll_SetEnvironmentVariableW]
push esi
push str.TEMP
call edi
push esi
push 0x4085a0
call edi
call fcn.0040337c
test eax, eax
je 0x40368f
mov ebx, dword [sym.imp.KERNEL32.dll_DeleteFileW]
push 0x436000
call ebx
push dword [esp + 0x1c]
call fcn.004030e1
mov dword [esp + 0x10], eax
test eax, eax
jne 0x40368d
cmp dword [0x429d84], eax
je 0x40367d
push eax
push ebp
call fcn.004058ba
mov edi, eax
jmp 0x403640
cmp dword [edi], 0x5f0020
jne 0x40363e
cmp dword [edi + 4], 0x3d003f
je 0x403644
dec edi
dec edi
cmp edi, ebp
jae 0x40362d
mov dword [esp + 0x10], str.Error_launching_installer
cmp edi, ebp
jb 0x4036bb
xor eax, eax
mov word [edi], ax
add edi, 8
push edi
call fcn.00405f71
test eax, eax
je 0x40368d
push edi
push 0x434800
call fcn.00405c9c
push edi
push 0x435000
call fcn.00405c9c
and dword [esp + 0x10], 0
or dword [0x429e0c], 0xffffffff
call fcn.00405477
mov dword [esp + 0x14], eax
xor ebx, ebx
call fcn.004033ad
call dword [sym.imp.ole32.dll_OleUninitialize]
pop ebp
cmp dword [esp + 0xc], ebx
je 0x4037b7
push 0x200010
push dword [esp + 0x10]
call fcn.00405854
push 2
call dword [sym.imp.KERNEL32.dll_ExitProcess]
call fcn.00405eb5
push 0x408594
push esi
mov edi, eax
call sub.KERNEL32.dll_lstrcatW
test edi, edi
je 0x4036dc
push 0x408590
push esi
call sub.KERNEL32.dll_lstrcatW
push str..tmp
push esi
call sub.KERNEL32.dll_lstrcatW
mov ebp, 0x435800
push ebp
push esi
call dword [sym.imp.KERNEL32.dll_lstrcmpiW]
test eax, eax
je 0x40368d
push esi
test edi, edi
je 0x403704
call fcn.00405750
jmp 0x403709
call fcn.004057d2
push esi
call dword [sym.imp.KERNEL32.dll_SetCurrentDirectoryW]
cmp word [0x434800], 0
jne 0x403725
push ebp
push 0x434800
call fcn.00405c9c
push dword [esp + 0x18]
push section..ndata
call fcn.00405c9c
push 0x1a
mov dword [0x42a800], 0x41
pop ebp
mov edi, 0x4209d0
mov eax, dword [0x429d2c]
push dword [eax + 0x120]
push edi
call fcn.00405ff9
push edi
call ebx
cmp dword [esp + 0x10], 0
je 0x4037a1
push 1
push edi
push 0x437800
call dword [sym.imp.KERNEL32.dll_CopyFileW]
test eax, eax
je 0x4037a1
push 0
push edi
call fcn.004063e2
mov eax, dword [0x429d2c]
push dword [eax + 0x124]
push edi
call fcn.00405ff9
push edi
call fcn.004057ef
test eax, eax
je 0x4037a1
push eax
call dword [sym.imp.KERNEL32.dll_CloseHandle]
and dword [esp + 0x10], 0
inc word [0x42a800]
dec ebp
jne 0x403745
push ebp
push esi
call fcn.004063e2
jmp 0x40368d
cmp dword [0x429df4], ebx
je 0x40383b
lea eax, [esp + 0x14]
push eax
push 0x28
call dword [sym.imp.KERNEL32.dll_GetCurrentProcess]
push eax
call dword [sym.imp.ADVAPI32.dll_OpenProcessToken]
test eax, eax
je 0x40380b
lea eax, [esp + 0x20]
push eax
push str.SeShutdownPrivilege
push ebx
call dword [sym.imp.ADVAPI32.dll_LookupPrivilegeValueW]
push ebx
push ebx
push ebx
lea eax, [esp + 0x28]
push eax
push ebx
push dword [esp + 0x28]
mov dword [esp + 0x34], 1
mov dword [esp + 0x40], 2
call dword [sym.imp.ADVAPI32.dll_AdjustTokenPrivileges]
push 5
call fcn.00405e06
mov esi, 0x80040002
cmp eax, ebx
je 0x403827
push esi
push 0x25
push ebx
push ebx
push ebx
call eax
test eax, eax
je 0x403834
push esi
push 2
call dword [sym.imp.USER32.dll_ExitWindowsEx]
test eax, eax
jne 0x40383b
push 9
call fcn.0040141a
mov eax, dword [0x429e0c]
cmp eax, 0xffffffff
je 0x403849
mov dword [esp + 0x10], eax
push dword [esp + 0x10]
jmp 0x4036b5