Function at 0x4036fc
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, 0x3ec
push ebx
push ebp
push esi
push edi
xor ebx, ebx
mov edi, str.Error_writing_temporary_file._Make_sure_your_temp_folder_is_valid.
push 0x8001
mov dword [esp + 0x14], ebx
mov ebp, ebx
call dword [sym.imp.KERNEL32.dll_SetErrorMode]
mov esi, dword [sym.imp.KERNEL32.dll_GetVersionExW]
lea eax, [esp + 0x2c]
xorps xmm0, xmm0
mov dword [esp + 0x40], ebx
push eax
movlpd qword [esp + 0x144], xmm0
mov dword [esp + 0x30], 0x11c
call esi
test eax, eax
jne 0x40377e
lea eax, [esp + 0x2c]
mov dword [esp + 0x2c], 0x114
push eax
call esi
push 0x53
pop eax
mov dl, 4
mov byte [esp + 0x146], dl
cmp word [esp + 0x40], ax
jne 0x40377a
mov eax, dword [esp + 0x5a]
add eax, 0xffffffd0
mov word [esp + 0x140], ax
jmp 0x403785
xor eax, eax
jmp 0x403770
mov dl, byte [esp + 0x146]
cmp dword [esp + 0x30], 0xa
jae 0x403797
movzx eax, word [esp + 0x38]
mov dword [esp + 0x38], eax
jmp 0x40379b
mov eax, dword [esp + 0x38]
mov dword [0x4352f8], eax
movzx eax, byte [esp + 0x30]
shl ax, 8
movzx ecx, ax
movzx eax, byte [esp + 0x34]
or ecx, eax
movzx eax, byte [esp + 0x140]
shl ax, 8
shl ecx, 0x10
movzx eax, ax
or ecx, eax
movzx eax, dl
or ecx, eax
mov eax, 0x600
mov dword [0x4352fc], ecx
sar ecx, 0x10
cmp cx, ax
je 0x4037f0
push ebx
call fcn.00406931
test eax, eax
je 0x4037f0
push 0xc00
call eax
mov esi, str.UXTHEME
push esi
call fcn.004061e9
push esi
call dword [sym.imp.KERNEL32.dll_lstrlenA]
inc esi
add esi, eax
cmp byte [esi], bl
jne 0x4037f5
push 0xc
call fcn.00406931
push 0xa
call fcn.00406931
push 8
mov dword [0x4341f0], eax
call fcn.00406931
test eax, eax
je 0x403836
push 0x1e
call eax
test eax, eax
je 0x403836
or byte [0x4352fc], 0x80
call dword [sym.imp.COMCTL32.dll_InitCommonControls]
push ebx
call dword [sym.imp.ole32.dll_OleInitialize]
push ebx
push 0x2b4
mov dword [0x435260], eax
lea eax, [esp + 0x150]
push eax
push ebx
push 0x4095a8
call dword [sym.imp.SHELL32.dll_SHGetFileInfoW]
push str.NSIS_Error
push 0x434200
call fcn.00406b65
call dword [sym.imp.KERNEL32.dll_GetCommandLineW]
push eax
mov esi, 0x440000
push esi
call fcn.00406b65
movzx ecx, word [0x440000]
push 0x22
pop ebx
push 0x20
pop edx
cmp cx, bx
mov dword [0x4341f4], 0x400000
mov eax, ebx
mov dword [esp + 0x14], ebx
cmovne eax, edx
mov edx, 0x440002
movzx eax, ax
push eax
mov eax, esi
cmove eax, edx
push eax
call fcn.00406641
push eax
call dword [sym.imp.USER32.dll_CharNextW]
mov ecx, eax
mov ebx, ecx
mov dword [esp + 0x18], ebx
movzx eax, word [ecx]
test ax, ax
je 0x4039b1
mov esi, eax
push 0x20
pop edx
movzx eax, si
cmp si, dx
jne 0x4038ed
add ecx, 2
movzx eax, word [ecx]
cmp ax, dx
je 0x4038e2
mov ebx, edx
movzx esi, ax
movzx edx, ax
cmp ax, word [esp + 0x14]
jne 0x403905
movzx edx, word [ecx + 2]
push 0x22
pop eax
mov ebx, eax
cmp si, word [esp + 0x14]
lea eax, [ecx + 2]
cmovne eax, ecx
cmp dx, 0x2f
jne 0x40396f
push 0x53
add eax, 2
pop ecx
push 0x20
pop edx
cmp word [eax], cx
jne 0x40393c
movzx ecx, word [eax + 2]
cmp cx, dx
je 0x403932
test cx, cx
jne 0x40393c
mov dword [0x4352e0], 1
cmp dword [eax], 0x43004e
jne 0x40395e
cmp dword [eax + 4], 0x430052
jne 0x40395e
movzx ecx, word [eax + 8]
cmp cx, dx
je 0x40395b
test cx, cx
jne 0x40395e
or ebp, 4
cmp dword [eax - 4], 0x2f0020
jne 0x40396f
cmp dword [eax], 0x3d0044
je 0x403999
push ebx
push eax
call fcn.00406641
mov ecx, eax
push 0x22
pop ebx
movzx eax, word [ecx]
mov edx, eax
cmp ax, bx
jne 0x40398b
add ecx, 2
movzx edx, word [ecx]
movzx esi, dx
test dx, dx
jne 0x4038d7
jmp 0x4039ad
xor ecx, ecx
mov word [eax - 4], cx
add eax, 4
push eax
push 0x440800
call fcn.00406b65
mov ebx, dword [esp + 0x18]
mov esi, dword [sym.imp.KERNEL32.dll_GetTempPathW]
push 0x442800
push 0x400
call esi
call fcn.00403cff
test eax, eax
jne 0x403a37
push 0x3fb
push 0x442800
call dword [sym.imp.KERNEL32.dll_GetWindowsDirectoryW]
push str.Temp
push 0x442800
call sub.KERNEL32.dll_lstrcatW
call fcn.00403cff
test eax, eax
jne 0x403a37
push 0x442800
push 0x3fc
call esi
push 0x4095d0
mov esi, 0x442800
push esi
call sub.KERNEL32.dll_lstrcatW
push esi
mov esi, dword [sym.imp.KERNEL32.dll_SetEnvironmentVariableW]
push str.TEMP
call esi
push 0x442800
push 0x4095e4
call esi
call fcn.00403cff
test eax, eax
je 0x403c18
push 0x442000
call dword [sym.imp.KERNEL32.dll_DeleteFileW]
push ebp
call fcn.004033ed
mov edi, eax
test edi, edi
jne 0x403c18
cmp dword [0x435204], eax
je 0x403abf
xor ebp, ebp
push ebp
push 0x440000
call fcn.00406641
mov esi, eax
mov eax, 0x440000
jmp 0x403a84
cmp dword [esi], 0x5f0020
jne 0x403a81
cmp dword [esi + 4], 0x3d003f
je 0x403a88
sub esi, 2
cmp esi, eax
jae 0x403a70
mov edi, str.Error_launching_installer
cmp esi, eax
jb 0x403ad2
xor eax, eax
mov word [esi], ax
add esi, 8
push esi
call fcn.00406683
test eax, eax
je 0x403c62
push esi
push 0x440800
call fcn.00406b65
push esi
push 0x441000
call fcn.00406b65
mov edi, ebp
or dword [0x4352ec], 0xffffffff
call fcn.00405a98
mov ebx, eax
jmp 0x403c1c
call fcn.00406547
push 0x442800
mov dword [esp + 0x1c], eax
call sub.KERNEL32.dll_lstrlenW
push ebx
push section..ndata
mov esi, eax
call fcn.00406b65
cmp word [0x440800], bp
jne 0x403b0a
push 0x441800
push 0x440800
call fcn.00406b65
xor ebx, ebx
lea eax, [esi*2 + 0x442800]
inc ebx
mov dword [esp + 0x14], eax
mov esi, ebp
movzx ebp, bx
push ebp
push str.nsu_X.tmp
push eax
call dword [sym.imp.USER32.dll_wsprintfW]
mov eax, dword [0x435210]
add esp, 0xc
push dword [eax + 0x120]
push 0x438800
call fcn.00405ef3
cmp dword [esp + 0x18], 0
push 0x442800
je 0x403b55
call fcn.00405e98
jmp 0x403b5a
call fcn.00405e78
test eax, eax
je 0x403ba7
push 0x438800
call dword [sym.imp.KERNEL32.dll_GetFileAttributesW]
test eax, 0x400
jne 0x403c40
push 0x438800
call dword [sym.imp.KERNEL32.dll_DeleteFileW]
test eax, eax
je 0x403c40
push 1
push 0x442800
call fcn.00406764
mov eax, esi
inc esi
test eax, eax
jne 0x403c40
mov eax, dword [esp + 0x14]
jmp 0x403b1d
push 0x442800
call dword [sym.imp.KERNEL32.dll_SetCurrentDirectoryW]
push 0
push 0x442800
call fcn.00406288
push 1
push 0x438800
push 0x443800
call dword [sym.imp.KERNEL32.dll_CopyFileW]
test eax, eax
je 0x403c18
push 0
push 0x438800
call fcn.00406288
mov eax, dword [0x435210]
push dword [eax + 0x124]
push 0x439000
call fcn.00405ef3
push 0x439000
call fcn.00406721
test eax, eax
jne 0x403c53
mov eax, esi
inc esi
test eax, eax
jne 0x403c18
push 0x438800
call fcn.0040661a
test eax, eax
je 0x403b9e
mov ebx, dword [esp + 0x10]
xor ebp, ebp
call fcn.004036d2
call dword [sym.imp.ole32.dll_OleUninitialize]
test edi, edi
je 0x403c66
push 0x200010
push edi
call fcn.00406af3
push 2
call dword [sym.imp.KERNEL32.dll_ExitProcess]
mov eax, dword [esp + 0x14]
inc ebx
push 0
pop ebp
test bx, bx
jne 0x403b18
jmp 0x403c18
push eax
call dword [sym.imp.KERNEL32.dll_CloseHandle]
xor ebp, ebp
mov edi, ebp
mov ebx, edi
jmp 0x403c1e
mov ebx, ebp
jmp 0x403c1c
cmp dword [0x4352d4], 0
je 0x403ceb
lea eax, [esp + 0x18]
push eax
push 0x28
call dword [sym.imp.KERNEL32.dll_GetCurrentProcess]
push eax
call dword [sym.imp.ADVAPI32.dll_OpenProcessToken]
test eax, eax
je 0x403cbb
lea eax, [esp + 0x20]
push eax
push str.SeShutdownPrivilege
push ebp
call dword [sym.imp.ADVAPI32.dll_LookupPrivilegeValueW]
push ebp
push ebp
push ebp
lea eax, [esp + 0x28]
mov dword [esp + 0x28], 1
push eax
push ebp
push dword [esp + 0x2c]
mov dword [esp + 0x40], 2
call dword [sym.imp.ADVAPI32.dll_AdjustTokenPrivileges]
push 4
call fcn.00406931
mov esi, 0x80040002
test eax, eax
je 0x403cd7
push esi
push 0x25
push ebp
push ebp
push ebp
call eax
test eax, eax
je 0x403ce4
push esi
push 2
call dword [sym.imp.USER32.dll_ExitWindowsEx]
test eax, eax
jne 0x403ceb
push 9
call fcn.00401533
cmp dword [0x4352ec], 0xffffffff
cmovne ebx, dword [0x4352ec]
push ebx
jmp 0x403c3a