Function at 0x403532
Capabilities:
Accept command line arguments
Check os version
Copy file
Delete file
Get common file path
Get file attributes
Get file system object information
Set current directory
Set environment variable
Shutdown system
Terminate process

Disassembly:
sub esp, 0x3f8
push ebp
push esi
push edi
push 0x20
pop edi
xor ebp, ebp
push 0x8001
mov dword [esp + 0x20], ebp
mov dword [esp + 0x18], str.Error_writing_temporary_file._Make_sure_your_temp_folder_is_valid.
mov dword [esp + 0x14], ebp
call dword [sym.imp.KERNEL32.dll_SetErrorMode]
mov esi, dword [sym.imp.KERNEL32.dll_GetVersionExW]
lea eax, [esp + 0x34]
push eax
mov dword [esp + 0x4c], ebp
mov dword [esp + 0x14c], ebp
mov dword [esp + 0x150], ebp
mov dword [esp + 0x38], 0x11c
call esi
test eax, eax
jne 0x4035be
lea eax, [esp + 0x34]
mov dword [esp + 0x34], 0x114
push eax
call esi
mov ax, word [esp + 0x48]
mov ecx, dword [esp + 0x62]
sub ax, 0x53
add ecx, 0xffffffd0
neg ax
sbb eax, eax
mov byte [esp + 0x14e], 4
not eax
and eax, ecx
mov word [esp + 0x148], ax
cmp dword [esp + 0x38], 0xa
jae 0x4035cb
and word [esp + 0x42], 0
mov eax, dword [esp + 0x40]
movzx ecx, byte [esp + 0x3c]
mov dword [0x4347b8], eax
xor eax, eax
mov ah, byte [esp + 0x38]
movzx eax, ax
or eax, ecx
xor ecx, ecx
mov ch, byte [esp + 0x148]
movzx ecx, cx
shl eax, 0x10
or eax, ecx
movzx ecx, byte [esp + 0x14e]
or eax, ecx
mov dword [0x4347bc], eax
cmp word [0x4347be], 0x600
je 0x403620
push ebp
call fcn.0040694b
cmp eax, ebp
je 0x403620
push 0xc00
call eax
mov esi, str.UXTHEME
push esi
call fcn.004068db
push esi
call dword [sym.imp.KERNEL32.dll_lstrlenA]
lea esi, [esi + eax + 1]
cmp byte [esi], 0
jne 0x403625
push 0xc
call fcn.0040694b
push 0xa
call fcn.0040694b
push 8
mov dword [0x434704], eax
call fcn.0040694b
cmp eax, ebp
je 0x403668
push 0x1e
call eax
test eax, eax
je 0x403668
or byte [0x4347bc], 0x80
push ebx
call dword [sym.imp.COMCTL32.dll_InitCommonControls]
push ebp
call dword [sym.imp.ole32.dll_OleInitialize]
mov dword [0x4347c0], eax
push ebp
lea eax, [esp + 0x158]
push 0x2b4
push eax
push ebp
push 0x42aa28
call dword [sym.imp.SHELL32.dll_SHGetFileInfoW]
push str.NSIS_Error
push 0x433700
call fcn.00406557
call dword [sym.imp.KERNEL32.dll_GetCommandLineW]
mov ebx, 0x43f000
push eax
push ebx
call fcn.00406557
push 0x22
mov dword [0x434700], 0x400000
pop esi
mov eax, ebx
cmp word [0x43f000], si
jne 0x4036d5
mov edi, esi
mov eax, 0x43f002
push edi
push eax
call fcn.00405e53
push eax
call dword [sym.imp.USER32.dll_CharNextW]
mov ecx, eax
mov dword [esp + 0x1c], ecx
jmp 0x4037e4
push 0x20
pop edx
cmp ax, dx
jne 0x4036fd
inc ecx
inc ecx
cmp word [ecx], dx
je 0x4036f6
cmp word [ecx], si
mov dword [esp + 0x10], edx
jne 0x40370c
inc ecx
mov dword [esp + 0x10], esi
inc ecx
cmp word [ecx], 0x2f
jne 0x4037d1
inc ecx
inc ecx
cmp word [ecx], 0x53
jne 0x403736
mov ax, word [ecx + 2]
cmp ax, dx
je 0x40372c
cmp ax, bp
jne 0x403736
mov dword [0x4347a0], 1
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.NCRC]
or edi, eax
movzx eax, word [0x40a2b2]
shl eax, 0x10
or eax, edx
cdq
or esi, eax
mov eax, dword [ecx]
or edi, edx
cmp eax, esi
jne 0x40378c
mov eax, dword [ecx + 4]
cmp eax, edi
jne 0x40378c
mov ax, word [ecx + 8]
cmp ax, 0x20
je 0x403787
cmp ax, bp
jne 0x40378c
or dword [esp + 0x14], 4
movzx eax, word [0x40a2aa]
cdq
shld edx, eax, 0x10
shl eax, 0x10
mov edi, eax
xor esi, esi
movzx eax, word [0x40a2a8]
cdq
movzx edx, word [0x40a2a4]
or edi, eax
movzx eax, word [0x40a2a6]
shl eax, 0x10
or eax, edx
cdq
or esi, eax
mov eax, dword [ecx - 4]
or edi, edx
cmp eax, esi
jne 0x4037ce
mov eax, dword [ecx]
cmp eax, edi
je 0x4037f2
push 0x22
pop esi
push dword [esp + 0x10]
push ecx
call fcn.00405e53
mov ecx, eax
cmp word [ecx], si
jne 0x4037e4
inc ecx
inc ecx
mov ax, word [ecx]
cmp ax, bp
jne 0x4036ee
jmp 0x403804
mov word [ecx - 4], bp
add ecx, 4
push ecx
push 0x43f800
call fcn.00406557
mov edi, dword [sym.imp.KERNEL32.dll_GetTempPathW]
mov esi, 0x441800
push esi
push 0x400
call edi
call fcn.00403501
test eax, eax
jne 0x403876
push 0x3fb
push esi
call dword [sym.imp.KERNEL32.dll_GetWindowsDirectoryW]
push str.Temp
push esi
call sub.KERNEL32.dll_lstrcatW
call fcn.00403501
test eax, eax
jne 0x403876
push esi
push 0x3fc
call edi
push 0x40a290
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 0x40a27c
call edi
call fcn.00403501
test eax, eax
je 0x403a7d
push 0x441000
call dword [sym.imp.KERNEL32.dll_DeleteFileW]
push dword [esp + 0x14]
call fcn.00403082
cmp eax, ebp
mov dword [esp + 0x18], eax
jne 0x403a7d
cmp dword [0x43471c], ebp
je 0x403935
push ebp
push ebx
call fcn.00405e53
mov edi, eax
cmp edi, ebx
jb 0x4038fb
movzx eax, word [0x40a276]
cdq
shld edx, eax, 0x10
shl eax, 0x10
mov ebp, eax
movzx eax, word [0x40a274]
movzx ecx, word [str.___]
cdq
or ebp, eax
movzx eax, word [0x40a272]
shl eax, 0x10
or eax, ecx
xor ecx, ecx
cdq
or ecx, eax
mov eax, ebp
or eax, edx
mov edx, dword [edi]
cmp edx, ecx
jne 0x4038f3
mov edx, dword [edi + 4]
cmp edx, eax
je 0x4038f9
dec edi
dec edi
cmp edi, ebx
jae 0x4038e6
xor ebp, ebp
cmp edi, ebx
mov dword [esp + 0x18], str.Error_launching_installer
jb 0x40394a
mov word [edi], bp
add edi, 8
push edi
call fcn.00405f2e
test eax, eax
je 0x403a7d
push edi
push 0x43f800
call fcn.00406557
push edi
push 0x440000
call fcn.00406557
mov dword [esp + 0x18], ebp
or dword [0x4347ac], 0xffffffff
call fcn.00403c29
mov dword [esp + 0x20], eax
jmp 0x403a7d
call fcn.00405b22
push esi
mov dword [esp + 0x28], eax
call sub.KERNEL32.dll_lstrlenW
push dword [esp + 0x1c]
mov edi, eax
push section..ndata
call fcn.00406557
cmp word [0x43f800], bp
jne 0x403981
push 0x440800
push 0x43f800
call fcn.00406557
lea eax, [edi*2 + 0x441800]
mov dword [esp + 0x14], 1
mov dword [esp + 0x1c], eax
mov edi, 0x437800
mov ebx, 0x438000
mov dword [esp + 0x10], ebp
movzx ebp, word [esp + 0x14]
push ebp
push str.nsu_X.tmp
push dword [esp + 0x24]
call dword [sym.imp.USER32.dll_wsprintfW]
mov eax, dword [0x434710]
add esp, 0xc
push dword [eax + 0x120]
push edi
call fcn.00406594
cmp dword [esp + 0x24], 0
push esi
je 0x4039da
call fcn.00405aab
jmp 0x4039df
call fcn.00405b05
test eax, eax
je 0x403a1d
push edi
call dword [sym.imp.KERNEL32.dll_GetFileAttributesW]
test ah, 4
jne 0x403a0e
push edi
call dword [sym.imp.KERNEL32.dll_DeleteFileW]
test eax, eax
je 0x403a0e
push 1
push esi
call fcn.00405c63
mov eax, dword [esp + 0x10]
inc dword [esp + 0x10]
test eax, eax
je 0x4039a7
inc dword [esp + 0x14]
xor ebp, ebp
cmp word [esp + 0x14], bp
jne 0x40399e
jmp 0x403a7d
push esi
call dword [sym.imp.KERNEL32.dll_SetCurrentDirectoryW]
push 0
push esi
call fcn.00406317
push 1
push edi
push 0x442800
call dword [sym.imp.KERNEL32.dll_CopyFileW]
test eax, eax
je 0x403a7b
push 0
push edi
call fcn.00406317
mov eax, dword [0x434710]
push dword [eax + 0x124]
push ebx
call fcn.00406594
push ebx
call fcn.00405b3a
test eax, eax
jne 0x403aa5
mov eax, dword [esp + 0x10]
inc dword [esp + 0x10]
test eax, eax
jne 0x403a7b
push edi
call fcn.004068b4
test eax, eax
je 0x4039a7
xor ebp, ebp
call fcn.00403b4f
call dword [sym.imp.ole32.dll_OleUninitialize]
cmp dword [esp + 0x18], ebp
pop ebx
je 0x403ab3
push 0x200010
push dword [esp + 0x18]
call fcn.00405bb7
push 2
call dword [sym.imp.KERNEL32.dll_ExitProcess]
push eax
call dword [sym.imp.KERNEL32.dll_CloseHandle]
and dword [esp + 0x18], 0
jmp 0x403a7b
cmp dword [0x434794], ebp
je 0x403b37
lea eax, [esp + 0x20]
push eax
push 0x28
call dword [sym.imp.KERNEL32.dll_GetCurrentProcess]
push eax
call dword [sym.imp.ADVAPI32.dll_OpenProcessToken]
test eax, eax
je 0x403b07
lea eax, [esp + 0x28]
push eax
push str.SeShutdownPrivilege
push ebp
call dword [sym.imp.ADVAPI32.dll_LookupPrivilegeValueW]
push ebp
push ebp
lea eax, [esp + 0x2c]
push ebp
push eax
push ebp
push dword [esp + 0x34]
mov dword [esp + 0x3c], 1
mov dword [esp + 0x48], 2
call dword [sym.imp.ADVAPI32.dll_AdjustTokenPrivileges]
push 4
call fcn.0040694b
cmp eax, ebp
mov esi, 0x80040002
je 0x403b23
push esi
push 0x25
push ebp
push ebp
push ebp
call eax
test eax, eax
je 0x403b30
push esi
push 2
call dword [sym.imp.USER32.dll_ExitWindowsEx]
test eax, eax
jne 0x403b37
push 9
call fcn.0040140b
mov eax, dword [0x4347ac]
cmp eax, 0xffffffff
je 0x403b45
mov dword [esp + 0x1c], eax
push dword [esp + 0x1c]
call dword [sym.imp.KERNEL32.dll_ExitProcess]