Function at 0x4032fe
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 0x403344
push ebx
call fcn.00406488
cmp eax, ebx
je 0x403344
push 0xc00
call eax
mov esi, str.UXTHEME
push esi
call fcn.00406418
push esi
call dword [sym.imp.KERNEL32.dll_lstrlenA]
lea esi, [esi + eax + 1]
cmp byte [esi], 0
jne 0x403349
push ebp
push 9
call fcn.00406488
push 7
call fcn.00406488
mov dword [0x42a204], eax
call dword [sym.imp.COMCTL32.dll_InitCommonControls]
push ebx
call dword [sym.imp.ole32.dll_OleInitialize]
mov dword [0x42a2b8], eax
push ebx
lea eax, [esp + 0x34]
push 0x2b4
push eax
push ebx
push 0x4216a8
call dword [sym.imp.SHELL32.dll_SHGetFileInfoW]
push str.NSIS_Error
push 0x429200
call fcn.004060ae
call dword [sym.imp.KERNEL32.dll_GetCommandLineW]
mov ebp, 0x435000
push eax
push ebp
call fcn.004060ae
push ebx
call dword [sym.imp.KERNEL32.dll_GetModuleHandleW]
cmp word [0x435000], 0x22
mov dword [0x42a200], eax
mov eax, ebp
jne 0x4033dd
push 0x22
mov eax, 0x435002
pop edi
push edi
push eax
call fcn.00405a8f
push eax
call dword [sym.imp.USER32.dll_CharNextW]
mov ecx, eax
mov dword [esp + 0x18], ecx
mov ax, word [ecx]
cmp ax, bx
je 0x40350e
push 0x20
pop ebx
cmp ax, bx
jne 0x40340c
inc ecx
inc ecx
cmp word [ecx], bx
je 0x403405
cmp word [ecx], 0x22
jne 0x403417
inc ecx
push 0x22
inc ecx
pop ebx
cmp word [ecx], 0x2f
jne 0x4034da
inc ecx
inc ecx
cmp word [ecx], 0x53
jne 0x403442
mov ax, word [ecx + 2]
cmp ax, 0x20
je 0x403438
test ax, ax
jne 0x403442
mov dword [0x42a2a0], 1
movzx eax, word [0x40a2c2]
cdq
shld edx, eax, 0x10
shl eax, 0x10
mov edi, eax
xor esi, esi
movzx eax, word [0x40a2c0]
cdq
movzx edx, word [str.NCRC]
or edi, eax
movzx eax, word [0x40a2be]
shl eax, 0x10
or eax, edx
cdq
or esi, eax
mov eax, dword [ecx]
or edi, edx
cmp eax, esi
jne 0x403498
mov eax, dword [ecx + 4]
cmp eax, edi
jne 0x403498
mov ax, word [ecx + 8]
cmp ax, 0x20
je 0x403493
test ax, ax
jne 0x403498
or dword [esp + 0x1c], 4
movzx eax, word [0x40a2b6]
cdq
shld edx, eax, 0x10
shl eax, 0x10
mov edi, eax
xor esi, esi
movzx eax, word [0x40a2b4]
cdq
movzx edx, word [str.__D]
or edi, eax
movzx eax, word [0x40a2b2]
shl eax, 0x10
or eax, edx
cdq
or esi, eax
mov eax, dword [ecx - 4]
or edi, edx
cmp eax, esi
jne 0x4034da
mov eax, dword [ecx]
cmp eax, edi
je 0x4034f9
push ebx
push ecx
call fcn.00405a8f
mov ecx, eax
cmp word [ecx], 0x22
jne 0x4034eb
inc ecx
inc ecx
mov ax, word [ecx]
test ax, ax
jne 0x4033fd
jmp 0x40350c
and word [ecx - 4], 0
add ecx, 4
push ecx
push 0x435800
call fcn.004060ae
xor ebx, ebx
mov edi, dword [sym.imp.KERNEL32.dll_GetTempPathW]
mov esi, 0x437800
push esi
push 0x400
call edi
call fcn.004032cd
test eax, eax
jne 0x403580
push 0x3fb
push esi
call dword [sym.imp.KERNEL32.dll_GetWindowsDirectoryW]
push str.Temp
push esi
call sub.KERNEL32.dll_lstrcatW
call fcn.004032cd
test eax, eax
jne 0x403580
push esi
push 0x3fc
call edi
push 0x40a29c
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 0x40a288
call edi
call fcn.004032cd
test eax, eax
je 0x40364b
push 0x437000
call dword [sym.imp.KERNEL32.dll_DeleteFileW]
push dword [esp + 0x1c]
call fcn.00402e82
cmp eax, ebx
mov dword [esp + 0x10], eax
jne 0x40364b
cmp dword [0x42a21c], ebx
je 0x40363b
push ebx
push ebp
call fcn.00405a8f
mov edi, eax
cmp edi, ebp
jb 0x403605
movzx eax, word [0x40a282]
cdq
shld edx, eax, 0x10
shl eax, 0x10
mov ebx, eax
movzx eax, word [0x40a280]
movzx ecx, word [str.___]
cdq
or ebx, eax
movzx eax, word [0x40a27e]
shl eax, 0x10
or eax, ecx
xor ecx, ecx
cdq
or ecx, eax
mov eax, ebx
or eax, edx
mov edx, dword [edi]
cmp edx, ecx
jne 0x4035fd
mov edx, dword [edi + 4]
cmp edx, eax
je 0x403603
dec edi
dec edi
cmp edi, ebp
jae 0x4035f0
xor ebx, ebx
cmp edi, ebp
mov dword [esp + 0x10], str.Error_launching_installer
jb 0x403677
mov word [edi], bx
add edi, 8
push edi
call fcn.00405b6a
test eax, eax
je 0x40364b
push edi
push 0x435800
call fcn.004060ae
push edi
push 0x436000
call fcn.004060ae
mov dword [esp + 0x10], ebx
or dword [0x42a2ac], 0xffffffff
call fcn.004038f7
mov dword [esp + 0x14], eax
call fcn.0040381d
call dword [sym.imp.ole32.dll_OleUninitialize]
cmp dword [esp + 0x10], ebx
pop ebp
je 0x403781
push 0x200010
push dword [esp + 0x10]
call fcn.004057f3
push 2
call dword [sym.imp.KERNEL32.dll_ExitProcess]
call fcn.00405776
push 0x40a270
push esi
mov edi, eax
call sub.KERNEL32.dll_lstrcatW
cmp edi, ebx
je 0x403698
push 0x40a26c
push esi
call sub.KERNEL32.dll_lstrcatW
push str..tmp
push esi
call sub.KERNEL32.dll_lstrcatW
mov ebp, 0x436800
push ebp
push esi
call dword [sym.imp.KERNEL32.dll_lstrcmpiW]
test eax, eax
je 0x40364b
cmp edi, ebx
push esi
je 0x4036c0
call fcn.004056dc
jmp 0x4036c5
call fcn.00405759
push esi
call dword [sym.imp.KERNEL32.dll_SetCurrentDirectoryW]
cmp word [0x435800], bx
jne 0x4036e0
push ebp
push 0x435800
call fcn.004060ae
push dword [esp + 0x18]
push section..ndata
call fcn.004060ae
movzx eax, word [0x40a25a]
movzx ecx, word [0x40a258]
shl eax, 0x10
or eax, ecx
push 0x1a
mov dword [0x42b800], eax
pop ebp
mov edi, 0x420ea8
mov eax, dword [0x42a210]
push dword [eax + 0x120]
push edi
call fcn.004060d0
push edi
call dword [sym.imp.KERNEL32.dll_DeleteFileW]
cmp dword [esp + 0x10], ebx
je 0x40376b
push 1
push edi
push 0x438800
call dword [sym.imp.KERNEL32.dll_CopyFileW]
test eax, eax
je 0x40376b
push ebx
push edi
call fcn.00405f4f
mov eax, dword [0x42a210]
push dword [eax + 0x124]
push edi
call fcn.004060d0
push edi
call fcn.0040578e
cmp eax, ebx
je 0x40376b
push eax
call dword [sym.imp.KERNEL32.dll_CloseHandle]
mov dword [esp + 0x10], ebx
inc word [0x42b800]
dec ebp
jne 0x40370e
push ebx
push esi
call fcn.00405f4f
jmp 0x40364b
cmp dword [0x42a294], ebx
je 0x403805
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 0x4037d5
lea eax, [esp + 0x20]
push eax
push str.SeShutdownPrivilege
push ebx
call dword [sym.imp.ADVAPI32.dll_LookupPrivilegeValueW]
push ebx
push ebx
lea eax, [esp + 0x24]
push ebx
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 4
call fcn.00406488
cmp eax, ebx
mov esi, 0x80040002
je 0x4037f1
push esi
push 0x25
push ebx
push ebx
push ebx
call eax
test eax, eax
je 0x4037fe
push esi
push 2
call dword [sym.imp.USER32.dll_ExitWindowsEx]
test eax, eax
jne 0x403805
push 9
call fcn.0040140b
mov eax, dword [0x42a2ac]
cmp eax, 0xffffffff
je 0x403813
mov dword [esp + 0x10], eax
push dword [esp + 0x10]
call dword [sym.imp.KERNEL32.dll_ExitProcess]