Function at 0x40350f
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, 0x3f8
push ebp
push esi
push edi
push 0x20
pop edi
xor ebp, ebp
push 0x8001
mov dword [esp + 0x20], ebp
mov dword [esp + 0x18], str.Error_writing_temporary_file._Make_sure_your_temp_folder_is_valid.
mov dword [esp + 0x14], ebp
call dword [sym.imp.KERNEL32.dll_SetErrorMode]
mov esi, dword [sym.imp.KERNEL32.dll_GetVersionExW]
lea eax, [esp + 0x34]
push eax
mov dword [esp + 0x4c], ebp
mov dword [esp + 0x14c], ebp
mov dword [esp + 0x150], ebp
mov dword [esp + 0x38], 0x11c
call esi
test eax, eax
jne 0x40359b
lea eax, [esp + 0x34]
mov dword [esp + 0x34], 0x114
push eax
call esi
mov ax, word [esp + 0x48]
mov ecx, dword [esp + 0x62]
sub ax, 0x53
add ecx, 0xffffffd0
neg ax
sbb eax, eax
mov byte [esp + 0x14e], 4
not eax
and eax, ecx
mov word [esp + 0x148], ax
cmp dword [esp + 0x38], 0xa
jae 0x4035a8
and word [esp + 0x42], 0
mov eax, dword [esp + 0x40]
movzx ecx, byte [esp + 0x3c]
mov dword [0x7a8318], eax
xor eax, eax
mov ah, byte [esp + 0x38]
movzx eax, ax
or eax, ecx
xor ecx, ecx
mov ch, byte [esp + 0x148]
movzx ecx, cx
shl eax, 0x10
or eax, ecx
movzx ecx, byte [esp + 0x14e]
or eax, ecx
mov dword [0x7a831c], eax
cmp word [0x7a831e], 0x600
je 0x4035fd
push ebp
call fcn.00406928
cmp eax, ebp
je 0x4035fd
push 0xc00
call eax
mov esi, str.UXTHEME
push esi
call fcn.004068b8
push esi
call dword [sym.imp.KERNEL32.dll_lstrlenA]
lea esi, [esi + eax + 1]
cmp byte [esi], 0
jne 0x403602
push 0xc
call fcn.00406928
push 0xa
call fcn.00406928
push 8
mov dword [0x7a8264], eax
call fcn.00406928
cmp eax, ebp
je 0x403645
push 0x1e
call eax
test eax, eax
je 0x403645
or byte [0x7a831c], 0x80
push ebx
call dword [sym.imp.COMCTL32.dll_InitCommonControls]
push ebp
call dword [sym.imp.ole32.dll_OleInitialize]
mov dword [0x7a8320], eax
push ebp
lea eax, [esp + 0x158]
push 0x2b4
push eax
push ebp
push 0x79f708
call dword [sym.imp.SHELL32.dll_SHGetFileInfoW]
push str.NSIS_Error
push 0x7a7260
call fcn.00406534
call dword [sym.imp.KERNEL32.dll_GetCommandLineW]
mov ebx, 0x7b3000
push eax
push ebx
call fcn.00406534
push 0x22
mov dword [0x7a8260], 0x400000
pop esi
mov eax, ebx
cmp word [0x7b3000], si
jne 0x4036b2
mov edi, esi
mov eax, 0x7b3002
push edi
push eax
call fcn.00405e30
push eax
call dword [sym.imp.USER32.dll_CharNextW]
mov ecx, eax
mov dword [esp + 0x1c], ecx
jmp 0x4037c1
push 0x20
pop edx
cmp ax, dx
jne 0x4036da
inc ecx
inc ecx
cmp word [ecx], dx
je 0x4036d3
cmp word [ecx], si
mov dword [esp + 0x10], edx
jne 0x4036e9
inc ecx
mov dword [esp + 0x10], esi
inc ecx
cmp word [ecx], 0x2f
jne 0x4037ae
inc ecx
inc ecx
cmp word [ecx], 0x53
jne 0x403713
mov ax, word [ecx + 2]
cmp ax, dx
je 0x403709
cmp ax, bp
jne 0x403713
mov dword [0x7a8300], 1
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.NCRC]
or edi, eax
movzx eax, word [0x40a2b2]
shl eax, 0x10
or eax, edx
cdq
or esi, eax
mov eax, dword [ecx]
or edi, edx
cmp eax, esi
jne 0x403769
mov eax, dword [ecx + 4]
cmp eax, edi
jne 0x403769
mov ax, word [ecx + 8]
cmp ax, 0x20
je 0x403764
cmp ax, bp
jne 0x403769
or dword [esp + 0x14], 4
movzx eax, word [0x40a2aa]
cdq
shld edx, eax, 0x10
shl eax, 0x10
mov edi, eax
xor esi, esi
movzx eax, word [0x40a2a8]
cdq
movzx edx, word [str.__D]
or edi, eax
movzx eax, word [0x40a2a6]
shl eax, 0x10
or eax, edx
cdq
or esi, eax
mov eax, dword [ecx - 4]
or edi, edx
cmp eax, esi
jne 0x4037ab
mov eax, dword [ecx]
cmp eax, edi
je 0x4037cf
push 0x22
pop esi
push dword [esp + 0x10]
push ecx
call fcn.00405e30
mov ecx, eax
cmp word [ecx], si
jne 0x4037c1
inc ecx
inc ecx
mov ax, word [ecx]
cmp ax, bp
jne 0x4036cb
jmp 0x4037e1
mov word [ecx - 4], bp
add ecx, 4
push ecx
push 0x7b3800
call fcn.00406534
mov edi, dword [sym.imp.KERNEL32.dll_GetTempPathW]
mov esi, 0x7b5800
push esi
push 0x400
call edi
call fcn.004034de
test eax, eax
jne 0x403853
push 0x3fb
push esi
call dword [sym.imp.KERNEL32.dll_GetWindowsDirectoryW]
push str.Temp
push esi
call sub.KERNEL32.dll_lstrcatW
call fcn.004034de
test eax, eax
jne 0x403853
push esi
push 0x3fc
call edi
push 0x40a290
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 0x40a27c
call edi
call fcn.004034de
test eax, eax
je 0x403a5a
push 0x7b5000
call dword [sym.imp.KERNEL32.dll_DeleteFileW]
push dword [esp + 0x14]
call fcn.00403082
cmp eax, ebp
mov dword [esp + 0x18], eax
jne 0x403a5a
cmp dword [0x7a827c], ebp
je 0x403912
push ebp
push ebx
call fcn.00405e30
mov edi, eax
cmp edi, ebx
jb 0x4038d8
movzx eax, word [0x40a276]
cdq
shld edx, eax, 0x10
shl eax, 0x10
mov ebp, eax
movzx eax, word [0x40a274]
movzx ecx, word [0x40a270]
cdq
or ebp, eax
movzx eax, word [0x40a272]
shl eax, 0x10
or eax, ecx
xor ecx, ecx
cdq
or ecx, eax
mov eax, ebp
or eax, edx
mov edx, dword [edi]
cmp edx, ecx
jne 0x4038d0
mov edx, dword [edi + 4]
cmp edx, eax
je 0x4038d6
dec edi
dec edi
cmp edi, ebx
jae 0x4038c3
xor ebp, ebp
cmp edi, ebx
mov dword [esp + 0x18], str.Error_launching_installer
jb 0x403927
mov word [edi], bp
add edi, 8
push edi
call fcn.00405f0b
test eax, eax
je 0x403a5a
push edi
push 0x7b3800
call fcn.00406534
push edi
push 0x7b4000
call fcn.00406534
mov dword [esp + 0x18], ebp
or dword [0x7a830c], 0xffffffff
call fcn.00403c06
mov dword [esp + 0x20], eax
jmp 0x403a5a
call fcn.00405aff
push esi
mov dword [esp + 0x28], eax
call sub.KERNEL32.dll_lstrlenW
push dword [esp + 0x1c]
mov edi, eax
push section..ndata
call fcn.00406534
cmp word [0x7b3800], bp
jne 0x40395e
push 0x7b4800
push 0x7b3800
call fcn.00406534
lea eax, [edi*2 + 0x7b5800]
mov dword [esp + 0x14], 1
mov dword [esp + 0x1c], eax
mov edi, 0x7ab800
mov ebx, 0x7ac000
mov dword [esp + 0x10], ebp
movzx ebp, word [esp + 0x14]
push ebp
push str.nsu_X.tmp
push dword [esp + 0x24]
call dword [sym.imp.USER32.dll_wsprintfW]
mov eax, dword [0x7a8270]
add esp, 0xc
push dword [eax + 0x120]
push edi
call fcn.00406571
cmp dword [esp + 0x24], 0
push esi
je 0x4039b7
call fcn.00405a88
jmp 0x4039bc
call fcn.00405ae2
test eax, eax
je 0x4039fa
push edi
call dword [sym.imp.KERNEL32.dll_GetFileAttributesW]
test ah, 4
jne 0x4039eb
push edi
call dword [sym.imp.KERNEL32.dll_DeleteFileW]
test eax, eax
je 0x4039eb
push 1
push esi
call fcn.00405c40
mov eax, dword [esp + 0x10]
inc dword [esp + 0x10]
test eax, eax
je 0x403984
inc dword [esp + 0x14]
xor ebp, ebp
cmp word [esp + 0x14], bp
jne 0x40397b
jmp 0x403a5a
push esi
call dword [sym.imp.KERNEL32.dll_SetCurrentDirectoryW]
push 0
push esi
call fcn.004062f4
push 1
push edi
push 0x7b6800
call dword [sym.imp.KERNEL32.dll_CopyFileW]
test eax, eax
je 0x403a58
push 0
push edi
call fcn.004062f4
mov eax, dword [0x7a8270]
push dword [eax + 0x124]
push ebx
call fcn.00406571
push ebx
call fcn.00405b17
test eax, eax
jne 0x403a82
mov eax, dword [esp + 0x10]
inc dword [esp + 0x10]
test eax, eax
jne 0x403a58
push edi
call fcn.00406891
test eax, eax
je 0x403984
xor ebp, ebp
call fcn.00403b2c
call dword [sym.imp.ole32.dll_OleUninitialize]
cmp dword [esp + 0x18], ebp
pop ebx
je 0x403a90
push 0x200010
push dword [esp + 0x18]
call fcn.00405b94
push 2
call dword [sym.imp.KERNEL32.dll_ExitProcess]
push eax
call dword [sym.imp.KERNEL32.dll_CloseHandle]
and dword [esp + 0x18], 0
jmp 0x403a58
cmp dword [0x7a82f4], ebp
je 0x403b14
lea eax, [esp + 0x20]
push eax
push 0x28
call dword [sym.imp.KERNEL32.dll_GetCurrentProcess]
push eax
call dword [sym.imp.ADVAPI32.dll_OpenProcessToken]
test eax, eax
je 0x403ae4
lea eax, [esp + 0x28]
push eax
push str.SeShutdownPrivilege
push ebp
call dword [sym.imp.ADVAPI32.dll_LookupPrivilegeValueW]
push ebp
push ebp
lea eax, [esp + 0x2c]
push ebp
push eax
push ebp
push dword [esp + 0x34]
mov dword [esp + 0x3c], 1
mov dword [esp + 0x48], 2
call dword [sym.imp.ADVAPI32.dll_AdjustTokenPrivileges]
push 4
call fcn.00406928
cmp eax, ebp
mov esi, 0x80040002
je 0x403b00
push esi
push 0x25
push ebp
push ebp
push ebp
call eax
test eax, eax
je 0x403b0d
push esi
push 2
call dword [sym.imp.USER32.dll_ExitWindowsEx]
test eax, eax
jne 0x403b14
push 9
call fcn.0040140b
mov eax, dword [0x7a830c]
cmp eax, 0xffffffff
je 0x403b22
mov dword [esp + 0x1c], eax
push dword [esp + 0x1c]
call dword [sym.imp.KERNEL32.dll_ExitProcess]