Function at 0x4032a0
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 0x4032e6
push ebx
call fcn.0040642a
cmp eax, ebx
je 0x4032e6
push 0xc00
call eax
mov esi, str.UXTHEME
push esi
call fcn.004063ba
push esi
call dword [sym.imp.KERNEL32.dll_lstrlenA]
lea esi, [esi + eax + 1]
cmp byte [esi], 0
jne 0x4032eb
push ebp
push 9
call fcn.0040642a
push 7
call fcn.0040642a
mov dword [0x434ee4], eax
call dword [sym.imp.COMCTL32.dll_InitCommonControls]
push ebx
call dword [sym.imp.ole32.dll_OleInitialize]
mov dword [0x434f98], eax
push ebx
lea eax, [esp + 0x34]
push 0x2b4
push eax
push ebx
push 0x42b208
call dword [sym.imp.SHELL32.dll_SHGetFileInfoW]
push str.NSIS_Error
push 0x433ee0
call fcn.00406050
call dword [sym.imp.KERNEL32.dll_GetCommandLineW]
mov ebp, 0x43f000
push eax
push ebp
call fcn.00406050
push ebx
call dword [sym.imp.KERNEL32.dll_GetModuleHandleW]
cmp word [0x43f000], 0x22
mov dword [0x434ee0], eax
mov eax, ebp
jne 0x40337f
push 0x22
mov eax, 0x43f002
pop edi
push edi
push eax
call fcn.00405a31
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 0x4034b0
push 0x20
pop ebx
cmp ax, bx
jne 0x4033ae
inc ecx
inc ecx
cmp word [ecx], bx
je 0x4033a7
cmp word [ecx], 0x22
jne 0x4033b9
inc ecx
push 0x22
inc ecx
pop ebx
cmp word [ecx], 0x2f
jne 0x40347c
inc ecx
inc ecx
cmp word [ecx], 0x53
jne 0x4033e4
mov ax, word [ecx + 2]
cmp ax, 0x20
je 0x4033da
test ax, ax
jne 0x4033e4
mov dword [0x434f80], 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 0x40343a
mov eax, dword [ecx + 4]
cmp eax, edi
jne 0x40343a
mov ax, word [ecx + 8]
cmp ax, 0x20
je 0x403435
test ax, ax
jne 0x40343a
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 0x40347c
mov eax, dword [ecx]
cmp eax, edi
je 0x40349b
push ebx
push ecx
call fcn.00405a31
mov ecx, eax
cmp word [ecx], 0x22
jne 0x40348d
inc ecx
inc ecx
mov ax, word [ecx]
test ax, ax
jne 0x40339f
jmp 0x4034ae
and word [ecx - 4], 0
add ecx, 4
push ecx
push 0x43f800
call fcn.00406050
xor ebx, ebx
mov edi, dword [sym.imp.KERNEL32.dll_GetTempPathW]
mov esi, 0x441800
push esi
push 0x400
call edi
call fcn.0040326f
test eax, eax
jne 0x403522
push 0x3fb
push esi
call dword [sym.imp.KERNEL32.dll_GetWindowsDirectoryW]
push str.Temp
push esi
call sub.KERNEL32.dll_lstrcatW
call fcn.0040326f
test eax, eax
jne 0x403522
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.0040326f
test eax, eax
je 0x4035ed
push 0x441000
call dword [sym.imp.KERNEL32.dll_DeleteFileW]
push dword [esp + 0x1c]
call fcn.00402dee
cmp eax, ebx
mov dword [esp + 0x10], eax
jne 0x4035ed
cmp dword [0x434efc], ebx
je 0x4035dd
push ebx
push ebp
call fcn.00405a31
mov edi, eax
cmp edi, ebp
jb 0x4035a7
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 0x40359f
mov edx, dword [edi + 4]
cmp edx, eax
je 0x4035a5
dec edi
dec edi
cmp edi, ebp
jae 0x403592
xor ebx, ebx
cmp edi, ebp
mov dword [esp + 0x10], str.Error_launching_installer
jb 0x403619
mov word [edi], bx
add edi, 8
push edi
call fcn.00405b0c
test eax, eax
je 0x4035ed
push edi
push 0x43f800
call fcn.00406050
push edi
push 0x440000
call fcn.00406050
mov dword [esp + 0x10], ebx
or dword [0x434f8c], 0xffffffff
call fcn.00403899
mov dword [esp + 0x14], eax
call fcn.004037bf
call dword [sym.imp.ole32.dll_OleUninitialize]
cmp dword [esp + 0x10], ebx
pop ebp
je 0x403723
push 0x200010
push dword [esp + 0x10]
call fcn.00405795
push 2
call dword [sym.imp.KERNEL32.dll_ExitProcess]
call fcn.00405718
push 0x40a270
push esi
mov edi, eax
call sub.KERNEL32.dll_lstrcatW
cmp edi, ebx
je 0x40363a
push 0x40a26c
push esi
call sub.KERNEL32.dll_lstrcatW
push str..tmp
push esi
call sub.KERNEL32.dll_lstrcatW
mov ebp, 0x440800
push ebp
push esi
call dword [sym.imp.KERNEL32.dll_lstrcmpiW]
test eax, eax
je 0x4035ed
cmp edi, ebx
push esi
je 0x403662
call fcn.0040567e
jmp 0x403667
call fcn.004056fb
push esi
call dword [sym.imp.KERNEL32.dll_SetCurrentDirectoryW]
cmp word [0x43f800], bx
jne 0x403682
push ebp
push 0x43f800
call fcn.00406050
push dword [esp + 0x18]
push section..ndata
call fcn.00406050
movzx eax, word [0x40a25a]
movzx ecx, word [0x40a258]
shl eax, 0x10
or eax, ecx
push 0x1a
mov dword [0x435800], eax
pop ebp
mov edi, 0x42aa08
mov eax, dword [0x434ef0]
push dword [eax + 0x120]
push edi
call fcn.00406072
push edi
call dword [sym.imp.KERNEL32.dll_DeleteFileW]
cmp dword [esp + 0x10], ebx
je 0x40370d
push 1
push edi
push 0x442800
call dword [sym.imp.KERNEL32.dll_CopyFileW]
test eax, eax
je 0x40370d
push ebx
push edi
call fcn.00405ef1
mov eax, dword [0x434ef0]
push dword [eax + 0x124]
push edi
call fcn.00406072
push edi
call fcn.00405730
cmp eax, ebx
je 0x40370d
push eax
call dword [sym.imp.KERNEL32.dll_CloseHandle]
mov dword [esp + 0x10], ebx
inc word [0x435800]
dec ebp
jne 0x4036b0
push ebx
push esi
call fcn.00405ef1
jmp 0x4035ed
cmp dword [0x434f74], ebx
je 0x4037a7
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 0x403777
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.0040642a
cmp eax, ebx
mov esi, 0x80040002
je 0x403793
push esi
push 0x25
push ebx
push ebx
push ebx
call eax
test eax, eax
je 0x4037a0
push esi
push 2
call dword [sym.imp.USER32.dll_ExitWindowsEx]
test eax, eax
jne 0x4037a7
push 9
call fcn.0040140b
mov eax, dword [0x434f8c]
cmp eax, 0xffffffff
je 0x4037b5
mov dword [esp + 0x10], eax
push dword [esp + 0x10]
call dword [sym.imp.KERNEL32.dll_ExitProcess]