Function at 0x404b62
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 - 0x3d4], 0
push edi
mov dword [ebp - 0x2d4], 0
mov dword [ebp - 0x2d0], 0
mov dword [ebp - 0x3e8], 0x11c
mov dword [esp], esi
call ebx
push edx
test eax, eax
jne 0x404bee
mov dword [esp], esi
mov dword [ebp - 0x3e8], 0x114
call ebx
xor eax, eax
cmp word [ebp - 0x3d4], 0x53
mov byte [ebp - 0x2ce], 4
push esi
jne 0x404be7
mov ax, word [ebp - 0x3ba]
sub eax, 0x30
mov word [ebp - 0x2d4], ax
mov ecx, dword [ebp - 0x3e4]
cmp ecx, 9
ja 0x404c03
and dword [ebp - 0x3dc], 0xffff
mov eax, dword [ebp - 0x3dc]
shl ecx, 8
mov dword [0x416058], eax
movzx eax, byte [ebp - 0x2d4]
shl eax, 8
mov edx, eax
movzx eax, byte [ebp - 0x2ce]
or eax, edx
movzx edx, byte [ebp - 0x3e0]
movzx eax, ax
or edx, ecx
shl edx, 0x10
or eax, edx
mov dword [0x41605c], eax
shr eax, 0x10
cmp ax, 0x600
je 0x404c60
mov dword [esp], 0
call fcn.00409327
push ebx
test eax, eax
je 0x404c60
mov dword [esp], 0xc00
call eax
push ecx
mov ebx, str.UXTHEME
mov dword [esp], ebx
call fcn.00409297
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 0x404c65
mov dword [esp], 0xc
call fcn.00409327
push ebx
mov dword [esp], 0xa
call fcn.00409327
push esi
mov dword [0x43dda4], eax
mov dword [esp], 8
call fcn.00409327
push edi
test eax, eax
je 0x404cc6
mov dword [esp], 0x1e
call eax
push ecx
test eax, eax
je 0x404cc6
or byte [0x41605c], 0x80
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], 0x43ddc0
call fcn.00408c9c
push eax
push eax
call dword [sym.imp.KERNEL32.dll_GetCommandLineW]
mov edi, dword [0x40da14]
lea ecx, [edi + 0x28000]
mov dword [esp + 4], eax
mov dword [esp], ecx
mov dword [ebp - 0x400], ecx
call fcn.00408c9c
push eax
push eax
mov dword [esp], 0
call dword [sym.imp.KERNEL32.dll_GetModuleHandleW]
mov dword [0x43dda8], eax
push edx
movzx eax, word [edi + 0x28000]
lea edx, [edi + 0x28002]
cmp ax, 0x22
je 0x404d7e
mov edx, dword [ebp - 0x400]
mov eax, 0x20
mov dword [esp], edx
mov dword [esp + 4], eax
call fcn.0040852d
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 0x404e5b
movzx edx, word [eax]
cmp dx, 0x20
jne 0x404db6
add eax, 2
jmp 0x404da8
cmp dx, 0x22
jne 0x404dc1
add eax, 2
jmp 0x404dc6
mov edx, 0x20
cmp word [eax], 0x2f
jne 0x404e3b
cmp word [eax + 2], 0x53
lea ebx, [eax + 2]
jne 0x404de8
test word [eax + 4], 0xffdf
jne 0x404de8
mov dword [0x416040], 1
cmp dword [eax + 6], 0x430052
jne 0x404e08
cmp dword [eax + 2], 0x43004e
jne 0x404e08
test word [eax + 0xa], 0xffdf
mov ecx, 4
cmove esi, ecx
cmp dword [eax + 2], 0x3d0044
jne 0x404e39
cmp dword [eax - 2], 0x2f0020
jne 0x404e39
mov word [eax - 2], 0
add eax, 6
mov dword [esp + 4], eax
lea eax, [edi + 0x2a000]
mov dword [esp], eax
call fcn.00408c9c
push ecx
push ecx
jmp 0x404e5b
mov eax, ebx
mov dword [esp + 4], edx
mov dword [esp], eax
call fcn.0040852d
push edx
push edx
cmp word [eax], 0x22
jne 0x404d9e
add eax, 2
jmp 0x404d9e
mov eax, dword [sym.imp.KERNEL32.dll_GetTempPathW]
lea ebx, [edi + 0x32000]
mov dword [esp], 0x1000
mov dword [esp + 4], ebx
mov dword [ebp - 0x3fc], eax
call eax
push eax
push eax
call fcn.00404ac0
test eax, eax
je 0x404eb2
lea eax, [edi + 0x30000]
mov dword [esp], eax
call dword [sym.imp.KERNEL32.dll_DeleteFileW]
push ecx
mov dword [esp], esi
call fcn.0040479d
mov dword [ebp - 0x3fc], eax
push esi
xor esi, esi
test eax, eax
jne 0x405206
jmp 0x404f53
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 edx
push edx
call fcn.00404ac0
test eax, eax
jne 0x404e84
mov dword [esp + 4], ebx
mov eax, dword [ebp - 0x3fc]
mov dword [esp], 0xffc
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.00404ac0
test eax, eax
jne 0x404e84
mov dword [ebp - 0x3fc], str.Error_writing_temporary_file._Make_sure_your_temp_folder_is_valid.
jmp 0x405204
cmp dword [0x420144], 0
je 0x4051e4
mov eax, dword [ebp - 0x400]
mov dword [esp + 4], 0
mov dword [esp], eax
call fcn.0040852d
push ecx
push ecx
cmp dword [ebp - 0x400], eax
ja 0x404fe7
cmp dword [eax + 4], 0x3d003f
je 0x404f8e
sub eax, 2
jmp 0x404f78
cmp dword [eax], 0x5f0020
jne 0x404f89
lea ebx, [eax + 8]
mov word [eax], 0
mov dword [esp], ebx
call fcn.004091e3
push edx
test eax, eax
jne 0x404fba
mov dword [ebp - 0x3fc], str.Error_launching_installer
jmp 0x405204
lea eax, [edi + 0x2a000]
mov dword [esp + 4], ebx
mov dword [esp], eax
call fcn.00408c9c
lea eax, [edi + 0x2c000]
push esi
push esi
mov dword [esp + 4], ebx
mov dword [esp], eax
call fcn.00408c9c
push edi
push edi
jmp 0x4051e4
call fcn.00409373
mov dword [esp], ebx
lea esi, [edi + 0xa000]
mov dword [ebp - 0x410], eax
call sub.KERNEL32.dll_lstrlenW
mov dword [ebp - 0x400], eax
lea eax, [edi + 0xc000]
push edx
mov dword [ebp - 0x408], eax
mov eax, dword [ebp - 0x404]
mov dword [esp], edi
mov dword [esp + 4], eax
call fcn.00408c9c
push ecx
push ecx
cmp word [edi + 0x2a000], 0
jne 0x40504b
lea eax, [edi + 0x2e000]
mov dword [esp + 4], eax
lea eax, [edi + 0x2a000]
mov dword [esp], eax
call fcn.00408c9c
push eax
push eax
mov word [ebp - 0x404], 1
mov eax, dword [ebp - 0x400]
lea eax, [edi + eax*2 + 0x32000]
mov dword [ebp - 0x40c], eax
mov dword [ebp - 0x400], 0
movzx eax, word [ebp - 0x404]
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 [0x420150]
mov eax, dword [eax + 0x120]
mov dword [esp], esi
mov dword [esp + 4], eax
call fcn.00409399
cmp dword [ebp - 0x410], 0
push ecx
push ecx
mov dword [esp], ebx
je 0x4050bf
call fcn.0040835c
jmp 0x4050c4
call fcn.004083c0
push edx
test eax, eax
je 0x40511d
mov dword [esp], esi
call dword [sym.imp.KERNEL32.dll_GetFileAttributesW]
bt eax, 0xa
push ecx
jb 0x4051d2
mov dword [esp], esi
call dword [sym.imp.KERNEL32.dll_DeleteFileW]
push edx
test eax, eax
je 0x4051d2
mov dword [esp + 4], 1
mov dword [esp], ebx
call fcn.00409962
cmp dword [ebp - 0x400], 0
push eax
push eax
jne 0x4051d2
mov dword [ebp - 0x400], 1
jmp 0x405071
mov dword [esp], ebx
call dword [sym.imp.KERNEL32.dll_SetCurrentDirectoryW]
push ecx
mov dword [esp + 4], 0
mov dword [esp], ebx
call fcn.0040991d
push eax
push eax
lea eax, [edi + 0x36000]
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 0x404fab
mov dword [esp + 4], 0
mov dword [esp], esi
call fcn.0040991d
push eax
push eax
mov eax, dword [0x420150]
mov eax, dword [eax + 0x124]
mov dword [esp + 4], eax
mov eax, dword [ebp - 0x408]
mov dword [esp], eax
call fcn.00409399
push eax
push eax
mov eax, dword [ebp - 0x408]
mov dword [esp], eax
call fcn.004083ee
push edx
test eax, eax
je 0x4051af
mov dword [esp], eax
call dword [sym.imp.KERNEL32.dll_CloseHandle]
push ecx
jmp 0x405204
cmp dword [ebp - 0x400], 0
jne 0x404fab
mov dword [esp], esi
call fcn.004091ab
push edx
test eax, eax
je 0x40510e
jmp 0x404fab
inc word [ebp - 0x404]
jne 0x405067
jmp 0x404fab
mov dword [0x41604c], 0xffffffff
call fcn.00406cdc
mov dword [esp], 1
mov esi, eax
call fcn.00408e41
push edi
jmp 0x405206
xor esi, esi
call fcn.00404b1b
call dword [sym.imp.ole32.dll_OleUninitialize]
cmp dword [ebp - 0x3fc], 0
mov ebx, dword [sym.imp.KERNEL32.dll_ExitProcess]
je 0x405244
mov eax, dword [ebp - 0x3fc]
mov dword [esp + 4], 0x200010
mov dword [esp], eax
call fcn.004084c1
push esi
push esi
mov dword [esp], 2
jmp 0x405364
cmp dword [0x416034], 0
je 0x405356
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 0x4052eb
lea eax, [ebp - 0x2c8]
mov dword [esp + 4], str.SeShutdownPrivilege
lea edi, [ebp - 0x2cc]
mov dword [esp + 8], eax
mov dword [esp], 0
call dword [sym.imp.ADVAPI32.dll_LookupPrivilegeValueW]
mov eax, dword [ebp - 0x3ec]
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], edi
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.00409327
push ecx
test eax, eax
jne 0x405319
mov dword [esp + 4], 0x80040002
mov dword [esp], 2
call dword [sym.imp.USER32.dll_ExitWindowsEx]
push edx
push edx
test eax, eax
je 0x405349
jmp 0x405356
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 0x4052fc
mov dword [esp], 9
call fcn.0040430b
push eax
mov eax, dword [0x41604c]
cmp eax, 0xffffffff
cmovne esi, eax
mov dword [esp], esi
call ebx
nop
nop