Function at 0x404aa2
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
push ebx
lea esi, [ebp - 0x3e8]
sub esp, 0x42c
mov dword [esp], 0x8001
call dword [sym.imp.KERNEL32.dll_SetErrorMode]
mov ebx, dword [sym.imp.KERNEL32.dll_GetVersionExW]
push eax
xor eax, eax
mov dword [ebp - 0x3d4], eax
mov dword [ebp - 0x2d4], eax
mov dword [ebp - 0x2d0], eax
mov dword [ebp - 0x3e8], 0x11c
mov dword [esp], esi
call ebx
push edx
test eax, eax
jne 0x404b27
mov dword [ebp - 0x3e8], 0x114
mov dword [esp], esi
call ebx
xor eax, eax
push edi
cmp word [ebp - 0x3d4], 0x53
mov byte [ebp - 0x2ce], 4
jne 0x404b20
mov ax, word [ebp - 0x3ba]
sub eax, 0x30
movzx eax, ax
mov word [ebp - 0x2d4], ax
mov edx, dword [ebp - 0x3e4]
cmp edx, 9
ja 0x404b3c
and dword [ebp - 0x3dc], 0xffff
mov eax, dword [ebp - 0x3dc]
shl edx, 8
movzx ecx, byte [ebp - 0x2d4]
mov dword [0x40e058], eax
movzx eax, byte [ebp - 0x2ce]
shl ecx, 8
or eax, ecx
movzx ecx, byte [ebp - 0x3e0]
or edx, ecx
shl edx, 0x10
or eax, edx
mov dword [0x40e05c], eax
shr eax, 0x10
cmp eax, 0x600
je 0x404b93
xor ebx, ebx
mov dword [esp], ebx
call fcn.0040911b
push esi
test eax, eax
je 0x404b93
mov dword [esp], 0xc00
call eax
push ecx
mov ebx, str.UXTHEME
cmp byte [ebx], 0
je 0x404bb6
mov dword [esp], ebx
call fcn.0040908d
push eax
mov dword [esp], ebx
call dword [sym.imp.KERNEL32.dll_lstrlenA]
lea ebx, [ebx + eax + 1]
push edx
jmp 0x404b98
mov dword [esp], 0xc
call fcn.0040911b
push ebx
mov dword [esp], 0xa
call fcn.0040911b
push esi
mov dword [esp], 8
mov dword [0x435d84], eax
call fcn.0040911b
push edi
test eax, eax
je 0x404bfb
mov dword [esp], 0x1e
call eax
push ecx
test eax, eax
je 0x404bfb
or byte [0x40e05c], 0x80
call dword [sym.imp.COMCTL32.dll_InitCommonControls]
xor ecx, ecx
xor esi, esi
mov dword [esp], ecx
xor edi, edi
call dword [sym.imp.ole32.dll_OleInitialize]
mov dword [section..bss], eax
lea eax, [ebp - 0x2cc]
push ebx
mov dword [esp + 0x10], esi
mov dword [esp + 0xc], 0x2b4
mov dword [esp + 8], eax
mov dword [esp + 4], edi
mov dword [esp], 0x40d0ba
call dword [sym.imp.SHELL32.dll_SHGetFileInfoW]
sub esp, 0x14
mov dword [esp + 4], str.NSIS_Error
mov dword [esp], 0x435da0
call fcn.00408aac
push eax
push eax
call dword [sym.imp.KERNEL32.dll_GetCommandLineW]
mov esi, dword [0x40da14]
lea ecx, [esi + 0x28000]
mov dword [ebp - 0x3fc], ecx
mov dword [esp], ecx
mov dword [esp + 4], eax
call fcn.00408aac
push eax
push eax
xor eax, eax
mov dword [esp], eax
call dword [sym.imp.KERNEL32.dll_GetModuleHandleW]
push edx
lea edx, [esi + 0x28002]
mov dword [0x435d88], eax
movzx eax, word [esi + 0x28000]
cmp eax, 0x22
je 0x404caa
mov edx, dword [ebp - 0x3fc]
mov eax, 0x20
mov dword [esp], edx
mov dword [esp + 4], eax
call fcn.0040839f
push ebx
push ebx
mov dword [esp], eax
call dword [sym.imp.USER32.dll_CharNextW]
xor edx, edx
push edi
mov dword [ebp - 0x404], eax
mov dword [ebp - 0x400], edx
cmp word [eax], 0
je 0x404da1
movzx edx, word [eax]
cmp edx, 0x20
jne 0x404ce7
add eax, 2
jmp 0x404cda
cmp edx, 0x22
jne 0x404cf1
add eax, 2
jmp 0x404cf6
mov edx, 0x20
cmp word [eax], 0x2f
jne 0x404d81
cmp word [eax + 2], 0x53
lea ebx, [eax + 2]
jne 0x404d20
mov cx, word [eax + 4]
and ecx, 0xffdf
jne 0x404d20
mov dword [0x40e040], 1
cmp dword [eax + 6], 0x430052
jne 0x404d4e
cmp dword [eax + 2], 0x43004e
jne 0x404d4e
mov cx, word [eax + 0xa]
and ecx, 0xffdf
mov ecx, 4
cmovne ecx, dword [ebp - 0x400]
mov dword [ebp - 0x400], ecx
cmp dword [eax + 2], 0x3d0044
jne 0x404d7f
cmp dword [eax - 2], 0x2f0020
jne 0x404d7f
mov word [eax - 2], 0
add eax, 6
mov dword [esp + 4], eax
lea eax, [esi + 0x2a000]
mov dword [esp], eax
call fcn.00408aac
push ecx
push ecx
jmp 0x404da1
mov eax, ebx
mov dword [esp + 4], edx
mov dword [esp], eax
call fcn.0040839f
push edx
push edx
cmp word [eax], 0x22
jne 0x404cd0
add eax, 2
jmp 0x404cd0
mov dword [esp], 0x1000
lea ebx, [esi + 0x32000]
mov edi, dword [sym.imp.KERNEL32.dll_GetTempPathW]
mov dword [esp + 4], ebx
call edi
push eax
push eax
call fcn.00404a00
test eax, eax
jne 0x404e5a
mov dword [esp + 4], 0xffb
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.00404a00
test eax, eax
jne 0x404e5a
mov dword [esp + 4], ebx
mov dword [esp], 0xffc
call edi
push ecx
push ecx
mov dword [esp + 4], 0x40d0de
mov dword [esp], ebx
call sub.KERNEL32.dll_lstrcatW
push edi
push edi
mov edi, dword [sym.imp.KERNEL32.dll_SetEnvironmentVariableW]
mov dword [esp + 4], ebx
mov dword [esp], str.TEMP
call edi
push eax
push eax
mov dword [esp + 4], ebx
mov dword [esp], 0x40d0f0
call edi
push eax
push eax
call fcn.00404a00
test eax, eax
jne 0x404e5a
call fcn.00404a5b
mov edi, str.Error_writing_temporary_file._Make_sure_your_temp_folder_is_valid.
call dword [sym.imp.ole32.dll_OleUninitialize]
jmp 0x40515c
lea eax, [esi + 0x30000]
mov dword [esp], eax
call dword [sym.imp.KERNEL32.dll_DeleteFileW]
push eax
mov eax, dword [ebp - 0x400]
mov dword [esp], eax
call fcn.004046ef
test eax, eax
mov edi, eax
push edx
jne 0x40513f
cmp dword [0x418124], 0
je 0x405114
xor ecx, ecx
mov dword [esp + 4], ecx
mov eax, dword [ebp - 0x3fc]
mov dword [esp], eax
call fcn.0040839f
push edi
push edi
mov ecx, dword [ebp - 0x3fc]
cmp eax, ecx
jb 0x404f0c
cmp dword [eax + 4], 0x3d003f
je 0x404ebe
sub eax, 2
jmp 0x404ea6
cmp dword [eax], 0x5f0020
jne 0x404eb9
mov word [eax], 0
lea ebx, [eax + 8]
mov dword [esp], ebx
call fcn.00408fdb
push edx
test eax, eax
je 0x40514c
mov dword [esp + 4], ebx
lea eax, [esi + 0x2a000]
mov dword [esp], eax
call fcn.00408aac
lea eax, [esi + 0x2c000]
push edi
push edi
mov dword [esp + 4], ebx
mov dword [esp], eax
call fcn.00408aac
push eax
push eax
jmp 0x405114
call fcn.00409167
lea edi, [esi + 0xa000]
mov dword [ebp - 0x40c], eax
mov dword [esp], ebx
call sub.KERNEL32.dll_lstrlenW
push edx
mov dword [ebp - 0x3fc], eax
lea eax, [esi + 0xc000]
mov dword [ebp - 0x408], eax
mov eax, dword [ebp - 0x404]
mov dword [esp], esi
mov dword [esp + 4], eax
call fcn.00408aac
push ecx
push ecx
cmp word [esi + 0x2a000], 0
jne 0x404f70
lea eax, [esi + 0x2e000]
mov dword [esp + 4], eax
lea eax, [esi + 0x2a000]
mov dword [esp], eax
call fcn.00408aac
push eax
push eax
mov eax, dword [ebp - 0x3fc]
mov dword [ebp - 0x400], 1
lea eax, [esi + eax*2 + 0x32000]
mov dword [ebp - 0x404], eax
xor eax, eax
mov dword [ebp - 0x3fc], eax
mov eax, dword [ebp - 0x400]
mov dword [esp + 4], str.nsu_X.tmp
mov dword [esp + 8], eax
mov eax, dword [ebp - 0x404]
mov dword [esp], eax
call dword [sym.imp.USER32.dll_wsprintfW]
mov eax, dword [0x418130]
mov eax, dword [eax + 0x120]
mov dword [esp], edi
mov dword [esp + 4], eax
call fcn.0040918e
push ecx
push ecx
cmp dword [ebp - 0x40c], 0
mov dword [esp], ebx
je 0x404fe2
call fcn.004081e8
jmp 0x404fe7
call fcn.00408248
test eax, eax
push edx
je 0x405040
mov dword [esp], edi
call dword [sym.imp.KERNEL32.dll_GetFileAttributesW]
push ecx
bt eax, 0xa
jb 0x4050fa
mov dword [esp], edi
call dword [sym.imp.KERNEL32.dll_DeleteFileW]
push edx
test eax, eax
je 0x4050fa
mov dword [esp + 4], 1
mov dword [esp], ebx
call fcn.00409710
push eax
push eax
cmp dword [ebp - 0x3fc], 0
jne 0x4050fa
mov dword [ebp - 0x3fc], 1
jmp 0x404f95
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.004096cb
push eax
push eax
lea eax, [esi + 0x36000]
mov dword [esp + 8], 1
mov dword [esp + 4], edi
mov dword [esp], eax
call dword [sym.imp.KERNEL32.dll_CopyFileW]
sub esp, 0xc
test eax, eax
je 0x40514c
mov dword [esp], edi
xor eax, eax
mov dword [esp + 4], eax
call fcn.004096cb
push eax
push eax
mov eax, dword [0x418130]
mov eax, dword [eax + 0x124]
mov dword [esp + 4], eax
mov eax, dword [ebp - 0x408]
mov dword [esp], eax
call fcn.0040918e
push eax
push eax
mov eax, dword [ebp - 0x408]
mov dword [esp], eax
call fcn.00408274
push edx
test eax, eax
je 0x4050de
mov dword [esp], eax
xor ebx, ebx
call dword [sym.imp.KERNEL32.dll_CloseHandle]
push ecx
call fcn.00404a5b
call dword [sym.imp.ole32.dll_OleUninitialize]
jmp 0x40517a
cmp dword [ebp - 0x3fc], 0
jne 0x40514c
mov dword [esp], edi
call fcn.00408fa3
push edx
test eax, eax
je 0x405031
jmp 0x40514c
mov eax, dword [ebp - 0x400]
inc eax
and eax, 0xffff
mov dword [ebp - 0x400], eax
jne 0x404f8d
jmp 0x40514c
mov dword [0x40e04c], 0xffffffff
call fcn.00406b9d
mov dword [esp], 1
mov ebx, eax
call fcn.00408c41
push eax
call fcn.00404a5b
call dword [sym.imp.ole32.dll_OleUninitialize]
jmp 0x40517a
call fcn.00404a5b
call dword [sym.imp.ole32.dll_OleUninitialize]
jmp 0x40515c
call fcn.00404a5b
mov edi, str.Error_launching_installer
call dword [sym.imp.ole32.dll_OleUninitialize]
mov dword [esp + 4], 0x200010
mov dword [esp], edi
call fcn.00408333
push eax
push eax
mov dword [esp], 2
jmp 0x405282
cmp dword [0x40e034], 0
je 0x405274
call dword [sym.imp.KERNEL32.dll_GetCurrentProcess]
lea edx, [ebp - 0x3ec]
mov dword [esp + 8], edx
mov dword [esp + 4], 0x28
mov dword [esp], eax
call dword [sym.imp.ADVAPI32.dll_OpenProcessToken]
sub esp, 0xc
test eax, eax
je 0x405213
mov dword [esp + 4], str.SeShutdownPrivilege
lea eax, [ebp - 0x2c8]
xor edi, edi
mov dword [esp + 8], eax
lea esi, [ebp - 0x2cc]
mov dword [esp], edi
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 + 8], esi
mov dword [esp + 4], eax
mov eax, dword [ebp - 0x3ec]
mov dword [esp], eax
call dword [sym.imp.ADVAPI32.dll_AdjustTokenPrivileges]
sub esp, 0x18
mov dword [esp], 4
call fcn.0040911b
push esi
test eax, eax
jne 0x405241
mov dword [esp + 4], 0x80040002
mov dword [esp], 2
call dword [sym.imp.USER32.dll_ExitWindowsEx]
push ecx
test eax, eax
push ecx
je 0x405267
jmp 0x405274
mov dword [esp + 0x10], 0x80040002
xor edx, edx
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 0x405224
mov dword [esp], 9
call fcn.0040426a
push eax
mov eax, dword [0x40e04c]
cmp eax, 0xffffffff
cmovne ebx, eax
mov dword [esp], ebx
call dword [sym.imp.KERNEL32.dll_ExitProcess]