Function at 0x40411b
Capabilities:
Accept command line arguments
Check os version
Copy file
Delete file
Get common file path
Get file system object information
Set current directory
Shutdown system
Terminate process

Disassembly:
push ebp
mov ebp, esp
push edi
push esi
push ebx
sub esp, 0x1ac
mov dword [esp], 0x8001
call dword [sym.imp.KERNEL32.dll_SetErrorMode]
push ecx
call dword [sym.imp.KERNEL32.dll_GetVersion]
cmp ax, 6
je 0x40415c
mov dword [esp], 0
call fcn.0040802f
test eax, eax
push edx
je 0x40415c
mov dword [esp], 0xc00
call eax
push eax
mov dword [esp], str.UXTHEME
call fcn.00407fb6
push ebx
mov dword [esp], str.USERENV
call fcn.00407fb6
push esi
mov dword [esp], str.SETUPAPI
call fcn.00407fb6
push edi
mov dword [esp], 0xd
call fcn.0040802f
push eax
mov dword [esp], 0xb
call fcn.0040802f
push edx
mov dword [0x42bca0], eax
call dword [sym.imp.COMCTL32.DLL_InitCommonControls]
mov dword [esp], 0
call dword [sym.imp.ole32.dll_OleInitialize]
mov dword [0x42bc18], eax
push ecx
lea eax, [ebp - 0x178]
mov dword [esp + 0x10], 0
mov dword [esp + 0xc], 0x160
mov dword [esp + 8], eax
mov dword [esp + 4], 0
mov dword [esp], 0x40b2c2
call dword [sym.imp.SHELL32.dll_SHGetFileInfoA]
sub esp, 0x14
mov dword [esp + 4], str.NSIS_Error
mov dword [esp], 0x42bcc0
call fcn.00407a5e
push ebx
push ebx
call dword [sym.imp.KERNEL32.dll_GetCommandLineA]
mov dword [esp], 0x434000
mov dword [esp + 4], eax
call fcn.00407a5e
push esi
push esi
mov dword [esp], 0
call dword [sym.imp.KERNEL32.dll_GetModuleHandleA]
mov dword [0x42bca8], eax
movsx eax, byte [0x434000]
mov edx, 0x434001
push edi
cmp al, 0x22
je 0x404248
mov edx, 0x434000
mov eax, 0x20
mov dword [esp], edx
mov dword [esp + 4], eax
xor ebx, ebx
call fcn.0040764c
push edx
push edx
mov dword [esp], eax
call dword [sym.imp.USER32.dll_CharNextA]
push ecx
mov dword [ebp - 0x18c], eax
cmp byte [eax], 0
je 0x40430a
mov cl, byte [eax]
cmp cl, 0x20
jne 0x40427b
inc eax
jmp 0x404271
cmp cl, 0x22
mov edx, 0x20
jne 0x40428b
inc eax
mov edx, 0x22
cmp byte [eax], 0x2f
jne 0x4042ed
cmp byte [eax + 1], 0x53
lea edi, [eax + 1]
jne 0x4042aa
mov cl, byte [eax + 2]
mov esi, ebx
or esi, 2
or ecx, 0x20
cmp cl, 0x20
cmove ebx, esi
cmp dword [eax + 1], 0x4352434e
jne 0x4042c4
mov cl, byte [eax + 5]
mov esi, ebx
or esi, 4
or ecx, 0x20
cmp cl, 0x20
cmove ebx, esi
cmp dword [eax - 1], 0x3d442f20
jne 0x4042eb
mov dword [eax - 1], 0
add eax, 3
mov dword [esp], 0x434400
mov dword [esp + 4], eax
call fcn.00407a5e
push edi
push edi
jmp 0x40430a
mov eax, edi
mov dword [esp + 4], edx
mov dword [esp], eax
call fcn.0040764c
xor edx, edx
push esi
push esi
cmp byte [eax], 0x22
sete dl
add eax, edx
jmp 0x404268
mov dword [esp + 4], 0x435400
mov dword [esp], 0x400
call dword [sym.imp.KERNEL32.dll_GetTempPathA]
push ecx
push ecx
call fcn.00404080
test eax, eax
je 0x404351
mov dword [esp], 0x435000
mov edi, dword [sym.imp.KERNEL32.dll_DeleteFileA]
call edi
push eax
mov dword [esp], ebx
xor ebx, ebx
call fcn.00403d65
test eax, eax
push edx
mov esi, eax
jne 0x4045c1
jmp 0x404391
mov dword [esp + 4], 0x3fb
mov dword [esp], 0x435400
call dword [sym.imp.KERNEL32.dll_GetWindowsDirectoryA]
push esi
push esi
mov dword [esp + 4], str.Temp
mov dword [esp], 0x435400
call fcn.00407a90
push edi
push edi
call fcn.00404080
test eax, eax
jne 0x40432a
mov esi, str.Error_writing_temporary_file._Make_sure_your_temp_folder_is_valid.
jmp 0x4045bf
cmp dword [0x42bc88], 0
je 0x4045ac
mov dword [esp + 4], 0
mov dword [esp], 0x434000
call fcn.0040764c
push ecx
push ecx
cmp eax, 0x434000
jb 0x40440c
cmp dword [eax], 0x3d3f5f20
je 0x4043c6
dec eax
jmp 0x4043b4
lea ebx, [eax + 4]
mov byte [eax], 0
mov dword [esp], ebx
call fcn.00407f03
test eax, eax
push edx
jne 0x4043e3
mov esi, str.Error_launching_installer
jmp 0x4045bf
mov dword [esp + 4], ebx
mov dword [esp], 0x434400
call fcn.00407a5e
push edi
push edi
mov dword [esp + 4], ebx
mov dword [esp], 0x434800
call fcn.00407a5e
push eax
push eax
jmp 0x4045ac
call fcn.00408081
mov dword [esp + 4], str.nsu
mov ebx, eax
mov dword [esp], 0x435400
call fcn.00407a90
test ebx, ebx
push esi
push esi
je 0x404443
mov dword [esp + 4], 0x40b2d9
mov dword [esp], 0x435400
call fcn.00407a90
push ecx
push ecx
mov dword [esp + 4], str..tmp
mov dword [esp], 0x435400
call fcn.00407a90
push eax
push eax
mov dword [esp + 4], 0x434c00
mov dword [esp], 0x435400
call dword [sym.imp.KERNEL32.dll_lstrcmpiA]
test eax, eax
push edx
push edx
je 0x4043d9
test ebx, ebx
mov dword [esp], 0x435400
je 0x40448a
call fcn.00407458
jmp 0x40448f
call fcn.004074f3
push eax
mov dword [esp], 0x435400
call dword [sym.imp.KERNEL32.dll_SetCurrentDirectoryA]
cmp byte [0x434400], 0
push eax
jne 0x4044bd
mov dword [esp + 4], 0x434c00
mov dword [esp], 0x434400
call fcn.00407a5e
push eax
push eax
mov eax, dword [ebp - 0x18c]
mov dword [esp], section..ndata
mov ebx, 0x1a
mov esi, str.Error_launching_installer
mov dword [esp + 4], eax
call fcn.00407a5e
push eax
push eax
mov word [0x42f400], 0x41
mov eax, dword [0x42bc20]
mov eax, dword [eax + 0x120]
mov dword [esp], 0x427d20
mov dword [esp + 4], eax
call fcn.00407bae
push ecx
push ecx
mov dword [esp], 0x427d20
call edi
test esi, esi
push eax
je 0x404587
mov dword [esp + 8], 1
mov dword [esp + 4], 0x427d20
mov dword [esp], 0x435c00
call dword [sym.imp.KERNEL32.dll_CopyFileA]
sub esp, 0xc
test eax, eax
je 0x404587
mov dword [esp + 4], 0
mov dword [esp], 0x427d20
call fcn.004080a7
push eax
push eax
mov eax, dword [0x42bc20]
mov eax, dword [eax + 0x124]
mov dword [esp], 0x427d20
mov dword [esp + 4], eax
call fcn.00407bae
push eax
push eax
mov dword [esp], 0x427d20
call fcn.00407521
test eax, eax
push edx
je 0x404587
mov dword [esp], eax
xor esi, esi
call dword [sym.imp.KERNEL32.dll_CloseHandle]
push eax
inc byte [0x42f400]
dec ebx
jne 0x4044e8
mov dword [esp + 4], 0
mov dword [esp], 0x435400
call fcn.004080a7
push edi
push edi
jmp 0x4045bf
mov dword [0x42bc0c], 0xffffffff
call fcn.00405ea5
mov ebx, eax
jmp 0x4045c1
xor ebx, ebx
call fcn.004040da
call dword [sym.imp.ole32.dll_OleUninitialize]
test esi, esi
je 0x4045ee
mov dword [esp + 4], 0x200010
mov dword [esp], esi
call fcn.004075de
push ebx
push ebx
mov dword [esp], 2
jmp 0x404756
cmp dword [0x42bbf4], 0
je 0x404748
mov dword [esp], 5
call fcn.0040802f
push esi
mov edi, eax
mov dword [esp], 6
call fcn.0040802f
push edx
mov esi, eax
mov dword [esp], 7
call fcn.0040802f
test edi, edi
mov dword [ebp - 0x18c], eax
push ecx
setne dl
test esi, esi
setne al
test dl, al
je 0x4046dd
cmp dword [ebp - 0x18c], 0
je 0x4046dd
call dword [sym.imp.KERNEL32.dll_GetCurrentProcess]
lea edx, [ebp - 0x17c]
mov dword [esp + 4], 0x28
mov dword [esp], eax
mov dword [esp + 8], edx
call edi
sub esp, 0xc
test eax, eax
je 0x4046dd
lea eax, [ebp - 0x174]
mov dword [esp + 4], str.SeShutdownPrivilege
mov dword [esp], 0
lea edi, [ebp - 0x178]
mov dword [esp + 8], eax
call esi
mov eax, dword [ebp - 0x17c]
sub esp, 0xc
mov dword [ebp - 0x178], 1
mov dword [ebp - 0x16c], 2
mov dword [esp + 0x14], 0
mov dword [esp + 0x10], 0
mov dword [esp + 0xc], 0
mov dword [esp + 8], edi
mov dword [esp + 4], 0
mov dword [esp], eax
call dword [ebp - 0x18c]
sub esp, 0x18
mov dword [esp], 8
call fcn.0040802f
test eax, eax
push ecx
jne 0x40470b
mov dword [esp + 4], 0x80040002
mov dword [esp], 2
call dword [sym.imp.USER32.dll_ExitWindowsEx]
test eax, eax
push edx
push edx
je 0x40473b
jmp 0x404748
mov dword [esp + 0x10], 0x80040002
mov dword [esp + 0xc], 0x25
mov dword [esp + 8], 0
mov dword [esp + 4], 0
mov dword [esp], 0
call eax
sub esp, 0x14
test eax, eax
jne 0x4046ee
mov dword [esp], 9
call fcn.004038e9
push eax
mov eax, dword [0x42bc0c]
cmp eax, 0xffffffff
cmovne ebx, eax
mov dword [esp], ebx
call dword [sym.imp.KERNEL32.dll_ExitProcess]