Function at 0x404a66
Capabilities:
Accept command line arguments
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:
push ebp
mov ebp, esp
push edi
push esi
lea esi, [ebp - 0x3e8]
push ebx
sub esp, 0x42c
mov dword [esp], 0x8001
call dword [sym.imp.KERNEL32.dll_SetErrorMode]
mov ebx, dword [sym.imp.KERNEL32.dll_GetVersionExW]
mov dword [ebp - 0x3e8], 0x11c
push eax
xor eax, eax
mov dword [ebp - 0x3d4], eax
mov dword [ebp - 0x2d4], eax
mov dword [ebp - 0x2d0], eax
mov dword [esp], esi
call ebx
push edx
test eax, eax
jne 0x404ae8
mov dword [ebp - 0x3e8], 0x114
mov dword [esp], esi
call ebx
xor eax, eax
cmp word [ebp - 0x3d4], 0x53
mov byte [ebp - 0x2ce], 4
push edi
jne 0x404ae1
mov ax, word [ebp - 0x3ba]
sub eax, 0x30
mov word [ebp - 0x2d4], ax
mov ecx, dword [ebp - 0x3e4]
cmp ecx, 9
ja 0x404afd
and dword [ebp - 0x3dc], 0xffff
mov eax, dword [ebp - 0x3dc]
movzx edx, byte [ebp - 0x2ce]
shl ecx, 8
mov dword [0x41a058], eax
mov eax, dword [ebp - 0x2d4]
shl eax, 8
or eax, edx
movzx edx, byte [ebp - 0x3e0]
movzx eax, ax
or edx, ecx
shl edx, 0x10
or eax, edx
mov dword [0x41a05c], eax
shr eax, 0x10
cmp ax, 0x600
je 0x404b55
xor ebx, ebx
mov dword [esp], ebx
call fcn.00408f91
push esi
test eax, eax
je 0x404b55
mov dword [esp], 0xc00
call eax
push ecx
mov ebx, str.UXTHEME
cmp byte [ebx], 0
je 0x404b78
mov dword [esp], ebx
call fcn.00408f03
push eax
mov dword [esp], ebx
call dword [sym.imp.KERNEL32.dll_lstrlenA]
lea ebx, [ebx + eax + 1]
push edx
jmp 0x404b5a
mov dword [esp], 0xc
call fcn.00408f91
push ebx
mov dword [esp], 0xa
call fcn.00408f91
push esi
mov dword [0x442244], eax
mov dword [esp], 8
call fcn.00408f91
push edi
test eax, eax
je 0x404bbd
mov dword [esp], 0x1e
call eax
push ecx
test eax, eax
je 0x404bbd
or byte [0x41a05c], 0x80
call dword [sym.imp.COMCTL32.dll_InitCommonControls]
xor edi, edi
xor ebx, ebx
mov dword [esp], edi
call dword [sym.imp.ole32.dll_OleInitialize]
xor ecx, ecx
push edx
mov dword [section..bss], eax
lea eax, [ebp - 0x2cc]
mov dword [esp + 0x10], ecx
mov dword [esp + 0xc], 0x2b4
mov dword [esp + 8], eax
mov dword [esp + 4], ebx
mov dword [esp], 0x40d0ba
call dword [sym.imp.SHELL32.dll_SHGetFileInfoW]
sub esp, 0x14
mov dword [esp + 4], str.NSIS_Error
mov dword [esp], 0x442260
call fcn.00408981
push esi
push esi
call dword [sym.imp.KERNEL32.dll_GetCommandLineW]
mov edi, dword [0x40d9d4]
lea ecx, [edi + 0x50000]
mov dword [esp + 4], eax
mov dword [esp], ecx
mov dword [ebp - 0x400], ecx
call fcn.00408981
push eax
push eax
xor eax, eax
mov dword [esp], eax
call dword [sym.imp.KERNEL32.dll_GetModuleHandleW]
mov dword [0x442248], eax
push edx
movzx eax, word [edi + 0x50000]
lea edx, [edi + 0x50002]
cmp ax, 0x22
je 0x404c6d
mov edx, dword [ebp - 0x400]
mov eax, 0x20
mov dword [esp], edx
mov dword [esp + 4], eax
call fcn.0040825f
push ebx
push ebx
mov dword [esp], eax
call dword [sym.imp.USER32.dll_CharNextW]
mov dword [ebp - 0x404], eax
push esi
xor esi, esi
cmp word [eax], 0
je 0x404d4a
movzx edx, word [eax]
cmp dx, 0x20
jne 0x404ca5
add eax, 2
jmp 0x404c97
cmp dx, 0x22
jne 0x404cb0
add eax, 2
jmp 0x404cb5
mov edx, 0x20
cmp word [eax], 0x2f
jne 0x404d2a
cmp word [eax + 2], 0x53
lea ebx, [eax + 2]
jne 0x404cd7
test word [eax + 4], 0xffdf
jne 0x404cd7
mov dword [0x41a040], 1
cmp dword [eax + 6], 0x430052
jne 0x404cf7
cmp dword [eax + 2], 0x43004e
jne 0x404cf7
test word [eax + 0xa], 0xffdf
mov ecx, 4
cmove esi, ecx
cmp dword [eax + 2], 0x3d0044
jne 0x404d28
cmp dword [eax - 2], 0x2f0020
jne 0x404d28
mov word [eax - 2], 0
add eax, 6
mov dword [esp + 4], eax
lea eax, [edi + 0x54000]
mov dword [esp], eax
call fcn.00408981
push ecx
push ecx
jmp 0x404d4a
mov eax, ebx
mov dword [esp + 4], edx
mov dword [esp], eax
call fcn.0040825f
push edx
push edx
cmp word [eax], 0x22
jne 0x404c8d
add eax, 2
jmp 0x404c8d
mov eax, dword [sym.imp.KERNEL32.dll_GetTempPathW]
lea ebx, [edi + 0x64000]
mov dword [esp], 0x2000
mov dword [esp + 4], ebx
mov dword [ebp - 0x3fc], eax
call eax
push eax
push eax
call fcn.004049c4
test eax, eax
je 0x404da1
lea eax, [edi + 0x60000]
mov dword [esp], eax
call dword [sym.imp.KERNEL32.dll_DeleteFileW]
push ecx
mov dword [esp], esi
call fcn.004046b4
mov dword [ebp - 0x3fc], eax
push esi
xor esi, esi
test eax, eax
jne 0x4050fb
jmp 0x404e42
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 edx
push edx
call fcn.004049c4
test eax, eax
jne 0x404d73
mov dword [esp + 4], ebx
mov eax, dword [ebp - 0x3fc]
mov dword [esp], 0x1ffc
call eax
push eax
push eax
mov dword [esp + 4], 0x40d0de
mov dword [esp], ebx
call sub.KERNEL32.dll_lstrcatW
mov edx, dword [sym.imp.KERNEL32.dll_SetEnvironmentVariableW]
push eax
push eax
mov dword [ebp - 0x3fc], edx
mov dword [esp + 4], ebx
mov dword [esp], str.TEMP
call edx
mov edx, dword [ebp - 0x3fc]
push eax
push eax
mov dword [esp + 4], ebx
mov dword [esp], 0x40d0f0
call edx
push eax
push eax
call fcn.004049c4
test eax, eax
jne 0x404d73
mov dword [ebp - 0x3fc], str.Error_writing_temporary_file._Make_sure_your_temp_folder_is_valid.
jmp 0x4050f9
cmp dword [0x42e124], 0
je 0x4050d9
mov eax, dword [ebp - 0x400]
xor ecx, ecx
mov dword [esp + 4], ecx
mov dword [esp], eax
call fcn.0040825f
push esi
push esi
mov ecx, dword [ebp - 0x400]
cmp eax, ecx
jb 0x404ed6
cmp dword [eax + 4], 0x3d003f
je 0x404e7d
sub eax, 2
jmp 0x404e65
cmp dword [eax], 0x5f0020
jne 0x404e78
lea ebx, [eax + 8]
mov word [eax], 0
mov dword [esp], ebx
call fcn.00408e4f
push edx
test eax, eax
jne 0x404ea9
mov dword [ebp - 0x3fc], str.Error_launching_installer
jmp 0x4050f9
lea eax, [edi + 0x54000]
mov dword [esp + 4], ebx
mov dword [esp], eax
call fcn.00408981
lea eax, [edi + 0x58000]
push esi
push esi
mov dword [esp + 4], ebx
mov dword [esp], eax
call fcn.00408981
push edi
push edi
jmp 0x4050d9
call fcn.00408fdd
mov dword [esp], ebx
lea esi, [edi + 0x14000]
mov dword [ebp - 0x410], eax
call sub.KERNEL32.dll_lstrlenW
mov dword [ebp - 0x400], eax
lea eax, [edi + 0x18000]
push edx
mov dword [ebp - 0x408], eax
mov eax, dword [ebp - 0x404]
mov dword [esp], edi
mov dword [esp + 4], eax
call fcn.00408981
push ecx
push ecx
cmp word [edi + 0x54000], 0
jne 0x404f3a
lea eax, [edi + 0x5c000]
mov dword [esp + 4], eax
lea eax, [edi + 0x54000]
mov dword [esp], eax
call fcn.00408981
push eax
push eax
mov word [ebp - 0x404], 1
mov eax, dword [ebp - 0x400]
lea eax, [edi + eax*2 + 0x64000]
mov dword [ebp - 0x40c], eax
movzx eax, word [ebp - 0x404]
xor edx, edx
mov dword [ebp - 0x400], edx
mov dword [ebp - 0x414], eax
mov eax, dword [ebp - 0x414]
mov dword [esp + 4], str.nsu_X.tmp
mov dword [esp + 8], eax
mov eax, dword [ebp - 0x40c]
mov dword [esp], eax
call dword [sym.imp.USER32.dll_wsprintfW]
mov eax, dword [0x42e130]
mov eax, dword [eax + 0x120]
mov dword [esp], esi
mov dword [esp + 4], eax
call fcn.00409003
cmp dword [ebp - 0x410], 0
push ecx
push ecx
mov dword [esp], ebx
je 0x404fb8
call fcn.004080a8
jmp 0x404fbd
call fcn.00408108
push edx
test eax, eax
je 0x405016
mov dword [esp], esi
call dword [sym.imp.KERNEL32.dll_GetFileAttributesW]
bt eax, 0xa
push ecx
jb 0x4050c7
mov dword [esp], esi
call dword [sym.imp.KERNEL32.dll_DeleteFileW]
push edx
test eax, eax
je 0x4050c7
mov dword [esp + 4], 1
mov dword [esp], ebx
call fcn.00409594
cmp dword [ebp - 0x400], 0
push eax
push eax
jne 0x4050c7
mov dword [ebp - 0x400], 1
jmp 0x404f6b
mov dword [esp], ebx
call dword [sym.imp.KERNEL32.dll_SetCurrentDirectoryW]
xor eax, eax
push ecx
mov dword [esp + 4], eax
mov dword [esp], ebx
call fcn.0040954f
push eax
push eax
lea eax, [edi + 0x6c000]
mov dword [esp + 8], 1
mov dword [esp + 4], esi
mov dword [esp], eax
call dword [sym.imp.KERNEL32.dll_CopyFileW]
sub esp, 0xc
test eax, eax
je 0x404e9a
xor eax, eax
mov dword [esp], esi
mov dword [esp + 4], eax
call fcn.0040954f
push eax
push eax
mov eax, dword [0x42e130]
mov eax, dword [eax + 0x124]
mov dword [esp + 4], eax
mov eax, dword [ebp - 0x408]
mov dword [esp], eax
call fcn.00409003
push eax
push eax
mov eax, dword [ebp - 0x408]
mov dword [esp], eax
call fcn.00408134
push edx
test eax, eax
je 0x4050a4
mov dword [esp], eax
call dword [sym.imp.KERNEL32.dll_CloseHandle]
push ebx
jmp 0x4050f9
cmp dword [ebp - 0x400], 0
jne 0x404e9a
mov dword [esp], esi
call fcn.00408e17
push ecx
test eax, eax
je 0x405007
jmp 0x404e9a
inc word [ebp - 0x404]
jne 0x404f56
jmp 0x404e9a
mov dword [0x41a04c], 0xffffffff
call fcn.00406b0a
mov dword [esp], 1
mov esi, eax
call fcn.00408b1a
push eax
jmp 0x4050fb
xor esi, esi
call fcn.00404a1f
call dword [sym.imp.ole32.dll_OleUninitialize]
cmp dword [ebp - 0x3fc], 0
mov ebx, dword [sym.imp.KERNEL32.dll_ExitProcess]
je 0x405139
mov eax, dword [ebp - 0x3fc]
mov dword [esp + 4], 0x200010
mov dword [esp], eax
call fcn.004081f3
push eax
push eax
mov dword [esp], 2
jmp 0x405241
cmp dword [0x41a034], 0
je 0x405233
call dword [sym.imp.KERNEL32.dll_GetCurrentProcess]
lea edx, [ebp - 0x3ec]
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 0x4051d2
lea eax, [ebp - 0x2c8]
mov dword [esp + 4], str.SeShutdownPrivilege
lea edi, [ebp - 0x2cc]
mov dword [esp + 8], eax
xor eax, eax
mov dword [esp], eax
call dword [sym.imp.ADVAPI32.dll_LookupPrivilegeValueW]
xor eax, eax
mov dword [ebp - 0x2cc], 1
mov dword [ebp - 0x2c0], 2
sub esp, 0xc
mov dword [esp + 0x14], eax
mov dword [esp + 0x10], eax
mov dword [esp + 0xc], eax
xor eax, eax
mov dword [esp + 4], eax
mov eax, dword [ebp - 0x3ec]
mov dword [esp + 8], edi
mov dword [esp], eax
call dword [sym.imp.ADVAPI32.dll_AdjustTokenPrivileges]
sub esp, 0x18
mov dword [esp], 4
call fcn.00408f91
push edi
test eax, eax
jne 0x405200
mov dword [esp + 4], 0x80040002
mov dword [esp], 2
call dword [sym.imp.USER32.dll_ExitWindowsEx]
push ecx
push ecx
test eax, eax
je 0x405226
jmp 0x405233
xor edx, edx
mov dword [esp + 0x10], 0x80040002
mov dword [esp + 0xc], 0x25
mov dword [esp + 8], edx
mov dword [esp + 4], edx
mov dword [esp], edx
call eax
sub esp, 0x14
test eax, eax
jne 0x4051e3
mov dword [esp], 9
call fcn.0040425b
push eax
mov eax, dword [0x41a04c]
cmp eax, 0xffffffff
cmove eax, esi
mov dword [esp], eax
call ebx
nop