Function at 0x404a4e
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:
push ebp
mov ebp, esp
push edi
push esi
push ebx
sub esp, 0x2fc
mov dword [esp], 0x8001
call dword [sym.imp.KERNEL32.dll_SetErrorMode]
push esi
call dword [sym.imp.KERNEL32.dll_GetVersion]
and eax, 0xbfffffff
mov dword [0x440240], eax
cmp ax, 6
je 0x404a99
mov dword [esp], 0
call fcn.0040992c
push ebx
test eax, eax
je 0x404a99
mov dword [esp], 0xc00
call eax
push ecx
mov ebx, str.UXTHEME
mov dword [esp], ebx
call fcn.0040989c
push eax
mov dword [esp], ebx
call dword [sym.imp.KERNEL32.dll_lstrlenA]
lea ebx, [ebx + eax + 1]
push edx
cmp byte [ebx], 0
jne 0x404a9e
mov dword [esp], 0xb
call fcn.0040992c
push ebx
mov dword [esp], 9
call fcn.0040992c
push esi
mov dword [0x440244], eax
mov dword [esp], 7
call fcn.0040992c
push edi
test eax, eax
je 0x404b02
mov dword [esp], 0x1e
call eax
push ecx
test eax, eax
je 0x404b02
or dword [0x440240], 0x40000000
call dword [sym.imp.COMCTL32.DLL_InitCommonControls]
mov dword [esp], 0
call dword [sym.imp.ole32.dll_OleInitialize]
push edi
mov dword [section..bss], eax
lea eax, [ebp - 0x2cc]
mov dword [esp + 0x10], 0
mov dword [esp + 0xc], 0x2b4
mov dword [esp + 8], eax
mov dword [esp + 4], 0
mov dword [esp], 0x40d0ba
call dword [sym.imp.SHELL32.dll_SHGetFileInfoW]
sub esp, 0x14
mov dword [esp + 4], str.NSIS_Error
mov dword [esp], 0x440260
call fcn.00408a65
push eax
push eax
call dword [sym.imp.KERNEL32.dll_GetCommandLineW]
mov ecx, dword [0x40d9d4]
add ecx, 0x50000
mov dword [esp + 4], eax
mov dword [esp], ecx
mov dword [ebp - 0x2dc], ecx
call fcn.00408a65
push eax
push eax
mov dword [esp], 0
call dword [sym.imp.KERNEL32.dll_GetModuleHandleW]
mov dword [0x440248], eax
mov eax, dword [0x40d9d4]
push edx
movzx eax, word [eax + 0x50000]
cmp ax, 0x22
jne 0x404bbc
mov ecx, dword [0x40d9d4]
lea edx, [ecx + 0x50002]
jmp 0x404bc7
mov edx, dword [ebp - 0x2dc]
mov eax, 0x20
mov dword [esp], edx
xor edi, edi
mov dword [esp + 4], eax
call fcn.004082f9
push ebx
push ebx
mov dword [esp], eax
call dword [sym.imp.USER32.dll_CharNextW]
mov dword [ebp - 0x2e0], eax
push esi
cmp word [eax], 0
je 0x404ca8
movzx edx, word [eax]
cmp dx, 0x20
jne 0x404bff
add eax, 2
jmp 0x404bf1
cmp dx, 0x22
jne 0x404c0a
add eax, 2
jmp 0x404c0f
mov edx, 0x20
cmp word [eax], 0x2f
jne 0x404c88
cmp word [eax + 2], 0x53
lea ebx, [eax + 2]
jne 0x404c31
test word [eax + 4], 0xffdf
jne 0x404c31
mov dword [0x418080], 1
cmp dword [eax + 6], 0x430052
jne 0x404c51
cmp dword [eax + 2], 0x43004e
jne 0x404c51
test word [eax + 0xa], 0xffdf
mov ecx, 4
cmove edi, ecx
cmp dword [eax + 2], 0x3d0044
jne 0x404c86
cmp dword [eax - 2], 0x2f0020
jne 0x404c86
mov word [eax - 2], 0
add eax, 6
mov dword [esp + 4], eax
mov eax, dword [0x40d9d4]
add eax, 0x54000
mov dword [esp], eax
call fcn.00408a65
push ecx
push ecx
jmp 0x404ca8
mov eax, ebx
mov dword [esp + 4], edx
mov dword [esp], eax
call fcn.004082f9
push edx
push edx
cmp word [eax], 0x22
jne 0x404be7
add eax, 2
jmp 0x404be7
mov eax, dword [0x40d9d4]
mov dword [esp], 0x2000
mov esi, dword [sym.imp.KERNEL32.dll_GetTempPathW]
lea ebx, [eax + 0x64000]
mov dword [esp + 4], ebx
call esi
push eax
push eax
call fcn.004049ac
test eax, eax
je 0x404cff
mov eax, dword [0x40d9d4]
add eax, 0x60000
mov dword [esp], eax
call dword [sym.imp.KERNEL32.dll_DeleteFileW]
push edx
mov dword [esp], edi
xor edi, edi
call fcn.0040468a
mov esi, eax
push ecx
test eax, eax
jne 0x404fe7
jmp 0x404d89
mov dword [esp + 4], 0x1ffb
mov dword [esp], ebx
call dword [sym.imp.KERNEL32.dll_GetWindowsDirectoryW]
push eax
push eax
mov dword [esp + 4], str.Temp
mov dword [esp], ebx
call sub.KERNEL32.dll_lstrcatW
push eax
push eax
call fcn.004049ac
test eax, eax
jne 0x404cd1
mov dword [esp + 4], ebx
mov dword [esp], 0x1ffc
call esi
push esi
push esi
mov dword [esp + 4], 0x40d0de
mov dword [esp], ebx
call sub.KERNEL32.dll_lstrcatW
mov esi, dword [sym.imp.KERNEL32.dll_SetEnvironmentVariableW]
push eax
push eax
mov dword [esp + 4], ebx
mov dword [esp], str.TEMP
call esi
push eax
push eax
mov dword [esp + 4], ebx
mov dword [esp], 0x40d0f0
call esi
push eax
push eax
call fcn.004049ac
test eax, eax
jne 0x404cd1
mov esi, str.Error_writing_temporary_file._Make_sure_your_temp_folder_is_valid.
jmp 0x404fe5
cmp dword [0x42c124], 0
je 0x404fc5
mov eax, dword [ebp - 0x2dc]
mov dword [esp + 4], 0
mov dword [esp], eax
call fcn.004082f9
push ecx
push ecx
cmp dword [ebp - 0x2dc], eax
ja 0x404e20
cmp dword [eax + 4], 0x3d003f
je 0x404dc4
sub eax, 2
jmp 0x404dae
cmp dword [eax], 0x5f0020
jne 0x404dbf
lea ebx, [eax + 8]
mov word [eax], 0
mov dword [esp], ebx
call fcn.00409500
push edx
test eax, eax
jne 0x404deb
mov esi, str.Error_launching_installer
jmp 0x404fe5
mov eax, dword [0x40d9d4]
mov dword [esp + 4], ebx
add eax, 0x54000
mov dword [esp], eax
call fcn.00408a65
push eax
push eax
mov eax, dword [0x40d9d4]
add eax, 0x58000
mov dword [esp + 4], ebx
mov dword [esp], eax
call fcn.00408a65
push eax
push eax
jmp 0x404fc5
call fcn.00409978
mov dword [esp + 4], str.nsu
mov dword [esp], ebx
mov esi, eax
call sub.KERNEL32.dll_lstrcatW
push eax
push eax
test esi, esi
je 0x404e4f
mov dword [esp + 4], 0x40d102
mov dword [esp], ebx
call sub.KERNEL32.dll_lstrcatW
push edi
push edi
mov dword [esp + 4], str..tmp
mov dword [esp], ebx
call sub.KERNEL32.dll_lstrcatW
mov eax, dword [0x40d9d4]
push edx
push edx
lea edi, [eax + 0x5c000]
mov dword [esp + 4], edi
mov dword [esp], ebx
call dword [sym.imp.KERNEL32.dll_lstrcmpiW]
push ecx
push ecx
test eax, eax
je 0x404de1
mov dword [esp], ebx
test esi, esi
je 0x404e91
call fcn.004080f8
jmp 0x404e96
call fcn.0040818c
push eax
mov dword [esp], ebx
call dword [sym.imp.KERNEL32.dll_SetCurrentDirectoryW]
push eax
mov eax, dword [0x40d9d4]
cmp word [eax + 0x54000], 0
jne 0x404ec3
add eax, 0x54000
mov dword [esp + 4], edi
mov dword [esp], eax
call fcn.00408a65
push eax
push eax
mov eax, dword [ebp - 0x2e0]
mov edi, 0x1a
mov esi, str.Error_launching_installer
mov dword [esp + 4], eax
mov eax, dword [0x40d9d4]
mov dword [esp], eax
call fcn.00408a65
push eax
push eax
mov eax, dword [0x40d9d4]
mov dword [eax + 0x4000], 0x41
mov eax, dword [0x42c130]
mov eax, dword [eax + 0x120]
mov dword [esp], 0x448260
mov dword [esp + 4], eax
call fcn.00408c0a
push ecx
push ecx
mov dword [esp], 0x448260
call dword [sym.imp.KERNEL32.dll_DeleteFileW]
push eax
test esi, esi
je 0x404f9e
mov eax, dword [0x40d9d4]
mov dword [esp + 8], 1
mov dword [esp + 4], 0x448260
add eax, 0x6c000
mov dword [esp], eax
call dword [sym.imp.KERNEL32.dll_CopyFileW]
sub esp, 0xc
test eax, eax
je 0x404f9e
mov dword [esp + 4], 0
mov dword [esp], 0x448260
call fcn.00409183
push eax
push eax
mov eax, dword [0x42c130]
mov eax, dword [eax + 0x124]
mov dword [esp], 0x448260
mov dword [esp + 4], eax
call fcn.00408c0a
push eax
push eax
mov dword [esp], 0x448260
call fcn.004081ba
push edx
test eax, eax
je 0x404f9e
mov dword [esp], eax
xor esi, esi
call dword [sym.imp.KERNEL32.dll_CloseHandle]
push eax
mov eax, dword [0x40d9d4]
inc word [eax + 0x4000]
dec edi
jne 0x404ef5
mov dword [esp + 4], 0
mov dword [esp], ebx
call fcn.00409183
push eax
push eax
jmp 0x404fe5
mov dword [0x41808c], 0xffffffff
call fcn.00406a60
mov dword [esp], 1
mov edi, eax
call fcn.004091c8
push eax
jmp 0x404fe7
xor edi, edi
call fcn.00404a07
call dword [sym.imp.ole32.dll_OleUninitialize]
test esi, esi
mov ebx, dword [sym.imp.KERNEL32.dll_ExitProcess]
je 0x40501a
mov dword [esp], esi
mov dword [esp + 4], 0x200010
call fcn.0040828d
push esi
push esi
mov dword [esp], 2
jmp 0x40513a
cmp dword [0x418074], 0
je 0x40512c
call dword [sym.imp.KERNEL32.dll_GetCurrentProcess]
lea edx, [ebp - 0x2d0]
mov dword [esp + 4], 0x28
mov dword [esp + 8], edx
mov dword [esp], eax
call dword [sym.imp.ADVAPI32.dll_OpenProcessToken]
sub esp, 0xc
test eax, eax
je 0x4050c1
lea eax, [ebp - 0x2c8]
mov dword [esp + 4], str.SeShutdownPrivilege
lea esi, [ebp - 0x2cc]
mov dword [esp + 8], eax
mov dword [esp], 0
call dword [sym.imp.ADVAPI32.dll_LookupPrivilegeValueW]
mov eax, dword [ebp - 0x2d0]
mov dword [ebp - 0x2cc], 1
mov dword [ebp - 0x2c0], 2
sub esp, 0xc
mov dword [esp + 0x14], 0
mov dword [esp + 0x10], 0
mov dword [esp + 0xc], 0
mov dword [esp + 8], esi
mov dword [esp + 4], 0
mov dword [esp], eax
call dword [sym.imp.ADVAPI32.dll_AdjustTokenPrivileges]
sub esp, 0x18
mov dword [esp], 4
call fcn.0040992c
push ecx
test eax, eax
jne 0x4050ef
mov dword [esp + 4], 0x80040002
mov dword [esp], 2
call dword [sym.imp.USER32.dll_ExitWindowsEx]
push edx
push edx
test eax, eax
je 0x40511f
jmp 0x40512c
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 0x4050d2
mov dword [esp], 9
call fcn.00404234
push eax
mov eax, dword [0x41808c]
cmp eax, 0xffffffff
cmovne edi, eax
mov dword [esp], edi
call ebx