Function at 0x4036da
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, 0x3f0
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 ebp, ebx
mov dword [esp + 0x14], ebx
call dword [sym.imp.KERNEL32.dll_SetErrorMode]
mov esi, dword [sym.imp.KERNEL32.dll_GetVersionExW]
lea eax, [esp + 0x30]
xorps xmm0, xmm0
mov dword [esp + 0x44], ebx
push eax
movlpd qword [esp + 0x148], xmm0
mov dword [esp + 0x34], 0x11c
call esi
test eax, eax
jne 0x40375c
lea eax, [esp + 0x30]
mov dword [esp + 0x30], 0x114
push eax
call esi
push 0x53
pop eax
mov dl, 4
mov byte [esp + 0x14a], dl
cmp word [esp + 0x44], ax
jne 0x403758
mov eax, dword [esp + 0x5e]
add eax, 0xffffffd0
mov word [esp + 0x144], ax
jmp 0x403763
xor eax, eax
jmp 0x40374e
mov dl, byte [esp + 0x14a]
cmp dword [esp + 0x34], 0xa
jae 0x403775
movzx eax, word [esp + 0x3c]
mov dword [esp + 0x3c], eax
jmp 0x403779
mov eax, dword [esp + 0x3c]
mov dword [0x7a8658], eax
movzx eax, byte [esp + 0x34]
shl ax, 8
movzx ecx, ax
movzx eax, byte [esp + 0x38]
or ecx, eax
movzx eax, byte [esp + 0x144]
shl ax, 8
shl ecx, 0x10
movzx eax, ax
or ecx, eax
movzx eax, dl
or ecx, eax
mov eax, 0x600
mov dword [0x7a865c], ecx
sar ecx, 0x10
cmp cx, ax
je 0x4037ce
push ebx
call fcn.004068d1
test eax, eax
je 0x4037ce
push 0xc00
call eax
mov esi, str.UXTHEME
push esi
call fcn.00406189
push esi
call dword [sym.imp.KERNEL32.dll_lstrlenA]
inc esi
add esi, eax
cmp byte [esi], bl
jne 0x4037d3
push 0xc
call fcn.004068d1
push 0xa
call fcn.004068d1
push 8
mov dword [0x7a7550], eax
call fcn.004068d1
test eax, eax
je 0x403814
push 0x1e
call eax
test eax, eax
je 0x403814
or byte [0x7a865c], 0x80
call dword [sym.imp.COMCTL32.dll_InitCommonControls]
push ebx
call dword [sym.imp.ole32.dll_OleInitialize]
push ebx
push 0x2b4
mov dword [0x7a85c0], eax
lea eax, [esp + 0x154]
push eax
push ebx
push 0x4085b0
call dword [sym.imp.SHELL32.dll_SHGetFileInfoW]
push str.NSIS_Error
push 0x7a7560
call fcn.00406b05
call dword [sym.imp.KERNEL32.dll_GetCommandLineW]
push eax
push 0x7b3000
call fcn.00406b05
movzx ecx, word [0x7b3000]
mov edx, 0x7b3002
push 0x22
pop esi
push 0x20
pop ebx
cmp cx, si
mov dword [0x7a7554], 0x400000
mov eax, esi
mov dword [esp + 0x18], esi
cmovne eax, ebx
movzx eax, ax
push eax
mov eax, 0x7b3000
cmove eax, edx
push eax
call fcn.004065e1
push eax
call dword [sym.imp.USER32.dll_CharNextW]
mov ecx, eax
mov dword [esp + 0x1c], ecx
movzx eax, word [ecx]
test ax, ax
je 0x40398a
mov esi, eax
movzx eax, si
cmp si, bx
jne 0x4038c8
add ecx, 2
movzx eax, word [ecx]
cmp ax, bx
je 0x4038bd
movzx esi, ax
movzx edx, ax
cmp ax, word [esp + 0x18]
jne 0x4038de
movzx edx, word [ecx + 2]
push 0x22
pop eax
mov ebx, eax
cmp si, word [esp + 0x18]
lea eax, [ecx + 2]
cmovne eax, ecx
cmp dx, 0x2f
jne 0x40394a
push 0x53
add eax, 2
pop ecx
push 0x20
pop edx
cmp word [eax], cx
jne 0x403915
movzx ecx, word [eax + 2]
cmp cx, dx
je 0x40390b
test cx, cx
jne 0x403915
mov dword [0x7a8640], 1
cmp dword [eax], 0x43004e
jne 0x403939
cmp dword [eax + 4], 0x430052
jne 0x403939
movzx ecx, word [eax + 8]
cmp cx, dx
je 0x403934
test cx, cx
jne 0x403939
or dword [esp + 0x10], 4
cmp dword [eax - 4], 0x2f0020
jne 0x40394a
cmp dword [eax], 0x3d0044
je 0x403976
push ebx
push eax
call fcn.004065e1
mov ecx, eax
push 0x22
pop ebx
movzx eax, word [ecx]
mov edx, eax
cmp ax, bx
jne 0x403966
add ecx, 2
movzx edx, word [ecx]
movzx esi, dx
test dx, dx
je 0x40398a
push 0x20
pop ebx
jmp 0x4038b5
xor ecx, ecx
mov word [eax - 4], cx
add eax, 4
push eax
push 0x7b3800
call fcn.00406b05
mov esi, dword [sym.imp.KERNEL32.dll_GetTempPathW]
mov ebx, 0x7b5800
push ebx
push 0x400
call esi
call fcn.00403c7e
test eax, eax
jne 0x4039fc
push 0x3fb
push ebx
call dword [sym.imp.KERNEL32.dll_GetWindowsDirectoryW]
push str.Temp
push ebx
call sub.KERNEL32.dll_lstrcatW
call fcn.00403c7e
test eax, eax
jne 0x4039fc
push ebx
push 0x3fc
call esi
push 0x4085d8
push ebx
call sub.KERNEL32.dll_lstrcatW
mov esi, dword [sym.imp.KERNEL32.dll_SetEnvironmentVariableW]
push ebx
push str.TEMP
call esi
push ebx
push 0x4085ec
call esi
call fcn.00403c7e
test eax, eax
je 0x403a8d
mov ebx, dword [sym.imp.KERNEL32.dll_DeleteFileW]
push 0x7b5000
call ebx
push dword [esp + 0x10]
call fcn.004033cb
mov edi, eax
test edi, edi
jne 0x403a8d
cmp dword [0x7a8564], ebp
je 0x403a7f
push eax
push 0x7b3000
call fcn.004065e1
mov esi, eax
mov eax, 0x7b3000
jmp 0x403a48
cmp dword [esi], 0x5f0020
jne 0x403a45
cmp dword [esi + 4], 0x3d003f
je 0x403a4c
sub esi, 2
cmp esi, eax
jae 0x403a34
mov edi, str.Error_launching_installer
cmp esi, eax
jb 0x403ab5
xor eax, eax
mov word [esi], ax
add esi, 8
push esi
call fcn.00406623
test eax, eax
je 0x403a8d
push esi
push 0x7b3800
call fcn.00406b05
push esi
push 0x7b4000
call fcn.00406b05
xor edi, edi
or dword [0x7a864c], 0xffffffff
call fcn.00405a17
mov ebp, eax
xor ebx, ebx
call fcn.004036b0
call dword [sym.imp.ole32.dll_OleUninitialize]
test edi, edi
je 0x403be5
push 0x200010
push edi
call fcn.00406a93
push 2
call dword [sym.imp.KERNEL32.dll_ExitProcess]
call fcn.004064e7
push str.nsu
push 0x7b5800
mov esi, eax
call sub.KERNEL32.dll_lstrcatW
test esi, esi
je 0x403ade
push 0x408600
push 0x7b5800
call sub.KERNEL32.dll_lstrcatW
push 0x408604
push 0x7b5800
call sub.KERNEL32.dll_lstrcatW
push 0x7b4800
push 0x7b5800
call dword [sym.imp.KERNEL32.dll_lstrcmpiW]
test eax, eax
je 0x403a8d
push 0x7b5800
test esi, esi
je 0x403b11
call fcn.00405e17
jmp 0x403b16
call fcn.00405df7
push 0x7b5800
call dword [sym.imp.KERNEL32.dll_SetCurrentDirectoryW]
xor eax, eax
cmp word [0x7b3800], ax
jne 0x403b3b
push 0x7b4800
push 0x7b3800
call fcn.00406b05
push dword [esp + 0x1c]
push section..ndata
call fcn.00406b05
push 0x1a
mov dword [0x7a9800], 0x41
xor ebp, ebp
pop esi
mov eax, dword [0x7a8570]
push dword [eax + 0x120]
push 0x79f220
call fcn.00405e93
push 0x79f220
call ebx
test edi, edi
je 0x403bc5
push 1
push 0x79f220
push 0x7b6800
call dword [sym.imp.KERNEL32.dll_CopyFileW]
test eax, eax
je 0x403bc5
push ebp
push 0x79f220
call fcn.00406228
mov eax, dword [0x7a8570]
push dword [eax + 0x124]
push 0x79f220
call fcn.00405e93
push 0x79f220
call fcn.004066c1
test eax, eax
je 0x403bc5
push eax
call dword [sym.imp.KERNEL32.dll_CloseHandle]
mov edi, ebp
inc word [0x7a9800]
sub esi, 1
jne 0x403b58
xor ebx, ebx
push ebx
push 0x7b5800
call fcn.00406228
mov ebp, ebx
jmp 0x403a8f
cmp dword [0x7a8634], 0
je 0x403c6a
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 0x403c3a
lea eax, [esp + 0x24]
push eax
push str.SeShutdownPrivilege
push ebx
call dword [sym.imp.ADVAPI32.dll_LookupPrivilegeValueW]
push ebx
push ebx
push ebx
lea eax, [esp + 0x2c]
mov dword [esp + 0x2c], 1
push eax
push ebx
push dword [esp + 0x28]
mov dword [esp + 0x44], 2
call dword [sym.imp.ADVAPI32.dll_AdjustTokenPrivileges]
push 4
call fcn.004068d1
mov esi, 0x80040002
test eax, eax
je 0x403c56
push esi
push 0x25
push ebx
push ebx
push ebx
call eax
test eax, eax
je 0x403c63
push esi
push 2
call dword [sym.imp.USER32.dll_ExitWindowsEx]
test eax, eax
jne 0x403c6a
push 9
call fcn.00401533
cmp dword [0x7a864c], 0xffffffff
cmovne ebp, dword [0x7a864c]
push ebp
jmp 0x403aaf