Function at 0x40350a
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, 0x2cc
and dword [esp], 0
push ebx
push ebp
push esi
push edi
push 0x20
pop edi
push 0x8001
mov ebx, str.Error_writing_temporary_file._Make_sure_your_temp_folder_is_valid.
xor ebp, ebp
call dword [sym.imp.KERNEL32.dll_SetErrorMode]
call dword [sym.imp.KERNEL32.dll_GetVersion]
cmp ax, 6
je 0x40354a
push ebp
call fcn.00406419
test eax, eax
je 0x40354a
push 0xc00
call eax
mov esi, str.UXTHEME
push esi
call fcn.00405d79
push esi
call dword [sym.imp.KERNEL32.dll_lstrlenA]
inc esi
add esi, eax
cmp byte [esi], 0
jne 0x40354f
push 9
call fcn.00406419
push 7
call fcn.00406419
mov dword [0x4339d0], eax
call dword [sym.imp.COMCTL32.dll_InitCommonControls]
xor esi, esi
push esi
call dword [sym.imp.ole32.dll_OleInitialize]
push esi
push 0x2b4
mov dword [0x434a44], eax
lea eax, [esp + 0x30]
push eax
push esi
push 0x4085b8
call dword [sym.imp.SHELL32.dll_SHGetFileInfoW]
push str.NSIS_Error
push 0x4339e0
call fcn.00406642
call dword [sym.imp.KERNEL32.dll_GetCommandLineW]
push eax
push 0x43f000
call fcn.00406642
push esi
call dword [sym.imp.KERNEL32.dll_GetModuleHandleW]
push 0x22
pop ecx
mov dword [0x4339d4], eax
mov eax, 0x43f000
cmp word [0x43f000], cx
jne 0x4035e6
mov edi, ecx
mov eax, 0x43f002
push edi
push eax
call fcn.0040612d
push eax
call dword [sym.imp.USER32.dll_CharNextW]
mov dword [esp + 0x14], eax
movzx ecx, word [eax]
test cx, cx
je 0x4036ae
push 0x20
pop esi
push 0x22
pop edi
cmp cx, si
jne 0x403617
add eax, 2
cmp word [eax], si
je 0x40360f
mov edx, esi
cmp word [eax], di
jne 0x403623
add eax, 2
mov edx, edi
cmp word [eax], 0x2f
jne 0x40367d
add eax, 2
cmp word [eax], 0x53
jne 0x40364a
movzx ecx, word [eax + 2]
cmp cx, si
je 0x403640
test cx, cx
jne 0x40364a
mov dword [0x434ac0], 1
cmp dword [eax], 0x43004e
jne 0x40366c
cmp dword [eax + 4], 0x430052
jne 0x40366c
movzx ecx, word [eax + 8]
cmp cx, si
je 0x403669
test cx, cx
jne 0x40366c
or ebp, 4
cmp dword [eax - 4], 0x2f0020
jne 0x40367d
cmp dword [eax], 0x3d0044
je 0x40369a
push edx
push eax
call fcn.0040612d
cmp word [eax], di
jne 0x40368c
add eax, 2
movzx ecx, word [eax]
test cx, cx
jne 0x40360a
jmp 0x4036ae
xor ecx, ecx
mov word [eax - 4], cx
add eax, 4
push eax
push 0x43f800
call fcn.00406642
mov esi, dword [sym.imp.KERNEL32.dll_GetTempPathW]
mov edi, 0x441800
push edi
push 0x400
call esi
call fcn.00403994
test eax, eax
jne 0x403720
push 0x3fb
push edi
call dword [sym.imp.KERNEL32.dll_GetWindowsDirectoryW]
push str.Temp
push edi
call sub.KERNEL32.dll_lstrcatW
call fcn.00403994
test eax, eax
jne 0x403720
push edi
push 0x3fc
call esi
push 0x4085e0
push edi
call sub.KERNEL32.dll_lstrcatW
mov esi, dword [sym.imp.KERNEL32.dll_SetEnvironmentVariableW]
push edi
push str.TEMP
call esi
push edi
push 0x4085f4
call esi
call fcn.00403994
test eax, eax
je 0x4038c9
mov edi, dword [sym.imp.KERNEL32.dll_DeleteFileW]
push 0x441000
call edi
push ebp
call fcn.004031f4
mov ebx, eax
test ebx, ebx
jne 0x4038c9
cmp dword [0x4349e0], eax
je 0x4037a4
push eax
mov ebp, 0x43f000
push ebp
call fcn.0040612d
mov esi, eax
jmp 0x403769
cmp dword [esi], 0x5f0020
jne 0x403766
cmp dword [esi + 4], 0x3d003f
je 0x40376d
sub esi, 2
cmp esi, ebp
jae 0x403755
mov ebx, str.Error_launching_installer
cmp esi, ebp
jb 0x4037b7
xor eax, eax
mov word [esi], ax
add esi, 8
push esi
call fcn.00406165
test eax, eax
je 0x4038c9
push esi
push 0x43f800
call fcn.00406642
push esi
push 0x440000
call fcn.00406642
xor ebx, ebx
or dword [0x434acc], 0xffffffff
call fcn.00405667
mov ebp, eax
jmp 0x4038cd
call fcn.00406075
push str.nsu
mov ebp, 0x441800
mov esi, eax
push ebp
call sub.KERNEL32.dll_lstrcatW
test esi, esi
je 0x4037dd
push 0x408608
push ebp
call sub.KERNEL32.dll_lstrcatW
push 0x40860c
push ebp
call sub.KERNEL32.dll_lstrcatW
push 0x440800
push ebp
call dword [sym.imp.KERNEL32.dll_lstrcmpiW]
test eax, eax
je 0x4038c9
push ebp
test esi, esi
je 0x403808
call fcn.00405a5f
jmp 0x40380d
call fcn.00405a3f
push ebp
call dword [sym.imp.KERNEL32.dll_SetCurrentDirectoryW]
cmp word [0x43f800], 0
jne 0x40382d
push 0x440800
push 0x43f800
call fcn.00406642
push dword [esp + 0x14]
push section..ndata
call fcn.00406642
push 0x1a
mov dword [0x435800], 0x41
pop esi
mov eax, dword [0x4349ec]
push dword [eax + 0x120]
push 0x42a518
call fcn.00405add
push 0x42a518
call edi
test ebx, ebx
je 0x4038b6
push 1
push 0x42a518
push 0x442800
call dword [sym.imp.KERNEL32.dll_CopyFileW]
test eax, eax
je 0x4038b6
push 0
push 0x42a518
call fcn.00405e1a
mov eax, dword [0x4349ec]
push dword [eax + 0x124]
push 0x42a518
call fcn.00405add
push 0x42a518
call fcn.00406205
test eax, eax
je 0x4038b6
push eax
call dword [sym.imp.KERNEL32.dll_CloseHandle]
xor ebx, ebx
inc word [0x435800]
sub esi, 1
jne 0x403848
push esi
push ebp
call fcn.00405e1a
mov ebp, dword [esp + 0x10]
call fcn.004034e0
call dword [sym.imp.ole32.dll_OleUninitialize]
test ebx, ebx
je 0x4038ef
push 0x200010
push ebx
call fcn.004065d0
push 2
call dword [sym.imp.KERNEL32.dll_ExitProcess]
cmp dword [0x434ab4], 0
je 0x403980
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 0x40394d
lea eax, [esp + 0x1c]
push eax
push str.SeShutdownPrivilege
push 0
call dword [sym.imp.ADVAPI32.dll_LookupPrivilegeValueW]
push 0
push 0
push 0
lea eax, [esp + 0x24]
mov dword [esp + 0x24], 1
push eax
push 0
push dword [esp + 0x28]
mov dword [esp + 0x3c], 2
call dword [sym.imp.ADVAPI32.dll_AdjustTokenPrivileges]
push 4
call fcn.00406419
mov esi, 0x80040002
test eax, eax
je 0x40396c
push esi
push 0x25
push 0
push 0
push 0
call eax
test eax, eax
je 0x403979
push esi
push 2
call dword [sym.imp.USER32.dll_ExitWindowsEx]
test eax, eax
jne 0x403980
push 9
call fcn.00401434
cmp dword [0x434acc], 0xffffffff
cmovne ebp, dword [0x434acc]
push ebp
jmp 0x4038e9