Function at 0x40350d
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]
and eax, 0xbfffffff
cmp ax, 6
mov dword [0x42a24c], eax
je 0x40355d
push ebx
call fcn.00406834
cmp eax, ebx
je 0x40355d
push 0xc00
call eax
mov esi, str.UXTHEME
push esi
call fcn.004067c4
push esi
call dword [sym.imp.KERNEL32.dll_lstrlenA]
lea esi, [esi + eax + 1]
cmp byte [esi], 0
jne 0x403562
push 0xa
call fcn.00406834
push 8
call fcn.00406834
push 6
mov dword [0x42a244], eax
call fcn.00406834
cmp eax, ebx
je 0x4035a5
push 0x1e
call eax
test eax, eax
je 0x4035a5
or byte [0x42a24f], 0x40
push ebp
call dword [sym.imp.COMCTL32.dll_InitCommonControls]
push ebx
call dword [sym.imp.ole32.dll_OleInitialize]
mov dword [0x42a318], eax
push ebx
lea eax, [esp + 0x34]
push 0x2b4
push eax
push ebx
push 0x4216e8
call dword [sym.imp.SHELL32.dll_SHGetFileInfoW]
push str.NSIS_Error
push 0x429240
call fcn.0040645a
call dword [sym.imp.KERNEL32.dll_GetCommandLineW]
mov ebp, 0x435000
push eax
push ebp
call fcn.0040645a
cmp word [0x435000], 0x22
mov dword [0x42a240], 0x400000
mov eax, ebp
jne 0x40360e
push 0x22
mov eax, 0x435002
pop edi
push edi
push eax
call fcn.00405d5c
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 0x40373f
push 0x20
pop ebx
cmp ax, bx
jne 0x40363d
inc ecx
inc ecx
cmp word [ecx], bx
je 0x403636
cmp word [ecx], 0x22
jne 0x403648
inc ecx
push 0x22
inc ecx
pop ebx
cmp word [ecx], 0x2f
jne 0x40370b
inc ecx
inc ecx
cmp word [ecx], 0x53
jne 0x403673
mov ax, word [ecx + 2]
cmp ax, 0x20
je 0x403669
test ax, ax
jne 0x403673
mov dword [0x42a300], 1
movzx eax, word [0x40a37e]
cdq
shld edx, eax, 0x10
shl eax, 0x10
mov edi, eax
xor esi, esi
movzx eax, word [0x40a37c]
cdq
movzx edx, word [str.NCRC]
or edi, eax
movzx eax, word [0x40a37a]
shl eax, 0x10
or eax, edx
cdq
or esi, eax
mov eax, dword [ecx]
or edi, edx
cmp eax, esi
jne 0x4036c9
mov eax, dword [ecx + 4]
cmp eax, edi
jne 0x4036c9
mov ax, word [ecx + 8]
cmp ax, 0x20
je 0x4036c4
test ax, ax
jne 0x4036c9
or dword [esp + 0x1c], 4
movzx eax, word [0x40a372]
cdq
shld edx, eax, 0x10
shl eax, 0x10
mov edi, eax
xor esi, esi
movzx eax, word [0x40a370]
cdq
movzx edx, word [0x40a36c]
or edi, eax
movzx eax, word [0x40a36e]
shl eax, 0x10
or eax, edx
cdq
or esi, eax
mov eax, dword [ecx - 4]
or edi, edx
cmp eax, esi
jne 0x40370b
mov eax, dword [ecx]
cmp eax, edi
je 0x40372a
push ebx
push ecx
call fcn.00405d5c
mov ecx, eax
cmp word [ecx], 0x22
jne 0x40371c
inc ecx
inc ecx
mov ax, word [ecx]
test ax, ax
jne 0x40362e
jmp 0x40373d
and word [ecx - 4], 0
add ecx, 4
push ecx
push 0x435800
call fcn.0040645a
xor ebx, ebx
mov esi, dword [sym.imp.KERNEL32.dll_GetTempPathW]
mov edi, 0x437800
push edi
push 0x400
call esi
call fcn.004034dc
test eax, eax
jne 0x4037b1
push 0x3fb
push edi
call dword [sym.imp.KERNEL32.dll_GetWindowsDirectoryW]
push str.Temp
push edi
call sub.KERNEL32.dll_lstrcatW
call fcn.004034dc
test eax, eax
jne 0x4037b1
push edi
push 0x3fc
call esi
push 0x40a358
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 0x40a344
call esi
call fcn.004034dc
test eax, eax
je 0x40387c
push 0x437000
call dword [sym.imp.KERNEL32.dll_DeleteFileW]
push dword [esp + 0x1c]
call fcn.00402f9d
cmp eax, ebx
mov dword [esp + 0x10], eax
jne 0x40387c
cmp dword [0x42a260], ebx
je 0x40386c
push ebx
push ebp
call fcn.00405d5c
mov esi, eax
cmp esi, ebp
jb 0x403836
movzx eax, word [0x40a33e]
cdq
shld edx, eax, 0x10
shl eax, 0x10
mov ebx, eax
movzx eax, word [0x40a33c]
movzx ecx, word [0x40a338]
cdq
or ebx, eax
movzx eax, word [0x40a33a]
shl eax, 0x10
or eax, ecx
xor ecx, ecx
cdq
or ecx, eax
mov eax, ebx
or eax, edx
mov edx, dword [esi]
cmp edx, ecx
jne 0x40382e
mov edx, dword [esi + 4]
cmp edx, eax
je 0x403834
dec esi
dec esi
cmp esi, ebp
jae 0x403821
xor ebx, ebx
cmp esi, ebp
mov dword [esp + 0x10], str.Error_launching_installer
jb 0x4038a8
mov word [esi], bx
add esi, 8
push esi
call fcn.00405e37
test eax, eax
je 0x40387c
push esi
push 0x435800
call fcn.0040645a
push esi
push 0x436000
call fcn.0040645a
mov dword [esp + 0x10], ebx
or dword [0x42a30c], 0xffffffff
call fcn.00403b40
mov dword [esp + 0x14], eax
call fcn.00403a4e
call dword [sym.imp.ole32.dll_OleUninitialize]
cmp dword [esp + 0x10], ebx
pop ebp
je 0x4039b2
push 0x200010
push dword [esp + 0x10]
call fcn.00405ac0
push 2
call dword [sym.imp.KERNEL32.dll_ExitProcess]
call fcn.00405a2b
push 0x40a32c
push edi
mov esi, eax
call sub.KERNEL32.dll_lstrcatW
cmp esi, ebx
je 0x4038c9
push 0x40a328
push edi
call sub.KERNEL32.dll_lstrcatW
push str..tmp
push edi
call sub.KERNEL32.dll_lstrcatW
mov ebp, 0x436800
push ebp
push edi
call dword [sym.imp.KERNEL32.dll_lstrcmpiW]
test eax, eax
je 0x40387c
cmp esi, ebx
push edi
je 0x4038f1
call fcn.00405991
jmp 0x4038f6
call fcn.00405a0e
push edi
call dword [sym.imp.KERNEL32.dll_SetCurrentDirectoryW]
cmp word [0x435800], bx
jne 0x403911
push ebp
push 0x435800
call fcn.0040645a
push dword [esp + 0x18]
push section..ndata
call fcn.0040645a
movzx eax, word [0x40a316]
movzx ecx, word [0x40a314]
shl eax, 0x10
or eax, ecx
push 0x1a
mov dword [0x42b800], eax
pop ebp
mov esi, 0x420ee8
mov eax, dword [0x42a254]
push dword [eax + 0x120]
push esi
call fcn.0040647c
push esi
call dword [sym.imp.KERNEL32.dll_DeleteFileW]
cmp dword [esp + 0x10], ebx
je 0x40399c
push 1
push esi
push 0x438800
call dword [sym.imp.KERNEL32.dll_CopyFileW]
test eax, eax
je 0x40399c
push ebx
push esi
call fcn.00406220
mov eax, dword [0x42a254]
push dword [eax + 0x124]
push esi
call fcn.0040647c
push esi
call fcn.00405a43
cmp eax, ebx
je 0x40399c
push eax
call dword [sym.imp.KERNEL32.dll_CloseHandle]
mov dword [esp + 0x10], ebx
inc word [0x42b800]
dec ebp
jne 0x40393f
push ebx
push edi
call fcn.00406220
jmp 0x40387c
cmp dword [0x42a2f4], ebx
je 0x403a36
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 0x403a06
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.00406834
cmp eax, ebx
mov esi, 0x80040002
je 0x403a22
push esi
push 0x25
push ebx
push ebx
push ebx
call eax
test eax, eax
je 0x403a2f
push esi
push 2
call dword [sym.imp.USER32.dll_ExitWindowsEx]
test eax, eax
jne 0x403a36
push 9
call fcn.0040140b
mov eax, dword [0x42a30c]
cmp eax, 0xffffffff
je 0x403a44
mov dword [esp + 0x10], eax
push dword [esp + 0x10]
call dword [sym.imp.KERNEL32.dll_ExitProcess]