Function at 0x4037e3
Capabilities:
Accept command line arguments
Copy file
Create directory
Delete file
Get common file path
Get file system object information
Shutdown system
Terminate process

Disassembly:
sub esp, 0x180
push ebx
push ebp
push esi
mov esi, str.Error_writing_temporary_file._Make_sure_your_temp_folder_is_valid.
xor ebx, ebx
push edi
mov dword [esp + 0x18], ebx
mov dword [esp + 0x10], ebx
mov byte [esp + 0x14], 0x20
call dword [sym.imp.COMCTL32.dll_InitCommonControls]
push ebx
call dword [sym.imp.ole32.dll_OleInitialize]
mov dword [0x44bbb0], eax
push ebx
lea eax, [esp + 0x34]
push 0x160
push eax
push ebx
push 0x42f4a0
call dword [sym.imp.SHELL32.dll_SHGetFileInfoA]
push str.NSIS_Error
push 0x447b00
call fcn.004062da
mov ebp, 0x47e000
mov edi, 0x2000
push ebp
push edi
call dword [sym.imp.KERNEL32.dll_GetTempPathA]
call fcn.004037af
or eax, eax
jne 0x403878
push 0x1ffb
push ebp
call dword [sym.imp.KERNEL32.dll_GetWindowsDirectoryA]
push str.Temp
push ebp
call fcn.004062f8
call fcn.004037af
test eax, eax
je 0x4039c3
mov ebx, 0x474000
push ebx
call dword [sym.imp.KERNEL32.dll_DeleteFileA]
push edi
call dword [sym.imp.KERNEL32.dll_GetCommandLineA]
push eax
push ebx
call dword [sym.imp.KERNEL32.dll_lstrcpynA]
xor edi, edi
push edi
call dword [sym.imp.KERNEL32.dll_GetModuleHandleA]
cmp byte [0x474000], 0x22
mov dword [0x44bb00], eax
mov eax, ebx
jne 0x4038b6
mov byte [esp + 0x14], 0x22
mov eax, 0x474001
push dword [esp + 0x14]
push eax
call fcn.00405e0a
push eax
call dword [sym.imp.USER32.dll_CharNextA]
mov dword [esp + 0x1c], eax
mov cl, byte [eax]
test cl, cl
je 0x40394c
cmp cl, 0x20
jne 0x4038dc
inc eax
cmp byte [eax], 0x20
je 0x4038d6
cmp byte [eax], 0x22
mov byte [esp + 0x14], 0x20
jne 0x4038ec
inc eax
mov byte [esp + 0x14], 0x22
cmp byte [eax], 0x2f
jne 0x403928
inc eax
cmp byte [eax], 0x53
jne 0x403907
mov cl, byte [eax + 1]
or cl, 0x20
cmp cl, 0x20
jne 0x403907
or dword [esp + 0x10], 2
cmp dword [eax], 0x4352434e
jne 0x40391f
mov cl, byte [eax + 4]
or cl, 0x20
cmp cl, 0x20
jne 0x40391f
or dword [esp + 0x10], 4
cmp dword [eax - 2], 0x3d442f20
je 0x40393a
push dword [esp + 0x14]
push eax
call fcn.00405e0a
cmp byte [eax], 0x22
jne 0x4038cb
inc eax
jmp 0x4038cb
and byte [eax - 2], 0
add eax, 2
push eax
push 0x476000
call fcn.004062da
push dword [esp + 0x10]
call fcn.004032e1
mov esi, eax
cmp esi, edi
jne 0x4039c3
cmp dword [0x44bb14], edi
je 0x4039ac
push edi
push ebx
call fcn.00405e0a
mov edi, eax
cmp edi, ebx
jb 0x40397b
cmp dword [edi], 0x3d3f5f20
je 0x40397b
dec edi
jmp 0x40396c
mov esi, str.Error_launching_installer
cmp edi, ebx
jb 0x4039e9
and byte [edi], 0
add edi, 4
push edi
call fcn.00405ec1
test eax, eax
je 0x4039c3
push edi
push 0x476000
call fcn.004062da
push edi
push 0x478000
call fcn.004062da
xor esi, esi
or dword [0x44bbac], 0xffffffff
call fcn.00403bf4
push 1
mov dword [esp + 0x1c], eax
call fcn.004065e3
call fcn.00403bae
call dword [sym.imp.ole32.dll_OleUninitialize]
test esi, esi
je 0x403afb
push 0x200010
push esi
call fcn.00405b91
push 2
call dword [sym.imp.KERNEL32.dll_ExitProcess]
push str.nsu.tmp_
push ebp
call fcn.004062f8
push 0
push ebp
call dword [sym.imp.KERNEL32.dll_CreateDirectoryA]
mov edi, 0x42d4a0
mov ebx, 0x4294a0
and dword [esp + 0x10], 0
push ebp
push ebx
mov word [0x4294a0], 0x22
call fcn.004062f8
push str.Au_.exe
push ebx
call fcn.004062f8
push 0x4294a1
call dword [sym.imp.KERNEL32.dll_DeleteFileA]
or esi, esi
je 0x403ae1
push 0x2000
push edi
push dword [0x44bb00]
call dword [sym.imp.KERNEL32.dll_GetModuleFileNameA]
lea eax, [eax + 0x42d49a]
push 0x40a74d
push eax
call dword [sym.imp.KERNEL32.dll_lstrcmpiA]
test eax, eax
je 0x4039c3
push 0
push 0x4294a1
push edi
call dword [sym.imp.KERNEL32.dll_CopyFileA]
or eax, eax
je 0x403ae1
push 0
push 0x4294a1
call fcn.00406023
cmp byte [0x476000], 0
je 0x403a9a
push 0x476000
push edi
call fcn.004062da
jmp 0x403aa0
push edi
call fcn.00405e26
push 0x40a7c4
push ebx
call fcn.004062f8
push dword [esp + 0x1c]
push ebx
call fcn.004062f8
push str.___
push ebx
call fcn.004062f8
push edi
push ebx
call fcn.004062f8
push ebx
call fcn.00405ddf
push ebp
push ebx
call fcn.00405b0a
test eax, eax
je 0x403ae1
push eax
call dword [sym.imp.KERNEL32.dll_CloseHandle]
xor esi, esi
inc byte [str.Au_.exe]
inc dword [esp + 0x10]
cmp dword [esp + 0x10], 0x1a
jl 0x403a0c
jmp 0x4039c3
cmp dword [0x44bb94], 0
je 0x403b96
push str.OpenProcessToken
mov edi, str.ADVAPI32.dll
push edi
call fcn.004067bc
push str.LookupPrivilegeValueA
mov esi, eax
push edi
call fcn.004067bc
mov ebx, eax
push str.AdjustTokenPrivileges
push edi
call fcn.004067bc
mov ebp, eax
xor edi, edi
cmp esi, edi
je 0x403b82
cmp ebx, edi
je 0x403b82
cmp ebp, edi
je 0x403b82
lea eax, [esp + 0x1c]
push eax
push 0x28
call dword [sym.imp.KERNEL32.dll_GetCurrentProcess]
push eax
call esi
test eax, eax
je 0x403b82
lea eax, [esp + 0x24]
push eax
push str.SeShutdownPrivilege
push edi
call ebx
push edi
push edi
lea eax, [esp + 0x28]
push edi
push eax
push edi
push dword [esp + 0x30]
mov dword [esp + 0x38], 1
mov dword [esp + 0x44], 2
call ebp
push edi
push 2
call dword [sym.imp.USER32.dll_ExitWindowsEx]
test eax, eax
jne 0x403b96
push 9
call fcn.00401518
mov eax, dword [0x44bbac]
cmp eax, 0xffffffff
je 0x403ba4
mov dword [esp + 0x18], eax
push dword [esp + 0x18]
call dword [sym.imp.KERNEL32.dll_ExitProcess]