Function at 0x403762
Capabilities:
Accept command line arguments
Copy file
Create directory
Delete file
Get common file path
Shutdown system
Terminate process

Disassembly:
sub esp, 0x20
push ebx
push ebp
push esi
xor ebx, ebx
push edi
mov dword [esp + 0x18], ebx
mov dword [esp + 0x10], str.Error_writing_temporary_file._Make_sure_your_temp_folder_is_valid.
mov byte [esp + 0x14], 0x20
call dword [sym.imp.COMCTL32.dll_InitCommonControls]
push ebx
call dword [sym.imp.ole32.dll_OleInitialize]
push str.NSIS_Error
push 0x447a40
mov dword [0x44baf0], eax
call fcn.0040613a
mov esi, 0x47e000
mov edi, 0x2000
push esi
push edi
call dword [sym.imp.KERNEL32.dll_GetTempPathA]
call fcn.0040372e
mov ebp, dword [sym.imp.KERNEL32.dll_lstrcatA]
test eax, eax
jne 0x4037df
push 0x1ffb
push esi
call dword [sym.imp.KERNEL32.dll_GetWindowsDirectoryA]
push str.Temp
push esi
call ebp
call fcn.0040372e
test eax, eax
je 0x40392b
mov esi, 0x474000
push esi
call dword [sym.imp.KERNEL32.dll_DeleteFileA]
push edi
call dword [sym.imp.KERNEL32.dll_GetCommandLineA]
push eax
push esi
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 [0x44ba40], eax
mov eax, esi
jne 0x40381d
mov byte [esp + 0x14], 0x22
mov eax, 0x474001
push dword [esp + 0x14]
push eax
call fcn.00405c62
push eax
call dword [sym.imp.USER32.dll_CharNextA]
mov dword [esp + 0x1c], eax
mov cl, byte [eax]
test cl, cl
je 0x4038af
cmp cl, 0x20
jne 0x403843
inc eax
cmp byte [eax], 0x20
je 0x40383d
cmp byte [eax], 0x22
mov byte [esp + 0x14], 0x20
jne 0x403853
inc eax
mov byte [esp + 0x14], 0x22
cmp byte [eax], 0x2f
jne 0x40388b
inc eax
cmp byte [eax], 0x53
jne 0x40386c
mov cl, byte [eax + 1]
or cl, 0x20
cmp cl, 0x20
jne 0x40386c
or ebx, 2
cmp dword [eax], 0x4352434e
jne 0x403882
mov cl, byte [eax + 4]
or cl, 0x20
cmp cl, 0x20
jne 0x403882
or ebx, 4
cmp dword [eax - 2], 0x3d442f20
je 0x40389d
push dword [esp + 0x14]
push eax
call fcn.00405c62
cmp byte [eax], 0x22
jne 0x403832
inc eax
jmp 0x403832
and byte [eax - 2], 0
add eax, 2
push eax
push 0x476000
call fcn.0040613a
push ebx
call fcn.0040308e
cmp eax, edi
mov dword [esp + 0x10], eax
jne 0x40392b
cmp dword [0x44ba54], edi
je 0x403914
push edi
push esi
call fcn.00405c62
mov edi, eax
cmp edi, esi
jb 0x4038dd
cmp dword [edi], 0x3d3f5f20
je 0x4038dd
dec edi
jmp 0x4038ce
cmp edi, esi
mov dword [esp + 0x10], str.Error_launching_installer
jb 0x403957
and byte [edi], 0
add edi, 4
push edi
call fcn.00405d19
test eax, eax
je 0x40392b
push edi
push 0x476000
call fcn.0040613a
push edi
push 0x478000
call fcn.0040613a
and dword [esp + 0x10], 0
or dword [0x44baec], 0xffffffff
call fcn.00403b78
push 1
mov dword [esp + 0x1c], eax
call fcn.00406440
call fcn.00403b19
call dword [sym.imp.ole32.dll_OleUninitialize]
cmp dword [esp + 0x10], 0
je 0x403a5c
push 0x200010
push dword [esp + 0x14]
call fcn.004059d9
push 2
call dword [sym.imp.KERNEL32.dll_ExitProcess]
and dword [esp + 0x14], 0
mov edi, 0x42b3dd
mov esi, 0x42b3dc
mov ebx, 0x4293dc
push 0x47e000
push edi
mov byte [0x42b3dc], 0x22
call fcn.0040613a
push str.nsu.tmp_
push esi
call ebp
push 0
push edi
call dword [sym.imp.KERNEL32.dll_CreateDirectoryA]
push str.Au_.exe
push esi
call ebp
push edi
call dword [sym.imp.KERNEL32.dll_DeleteFileA]
cmp dword [esp + 0x10], 0
je 0x403a42
push 0x2000
push ebx
push dword [0x44ba40]
call dword [sym.imp.KERNEL32.dll_GetModuleFileNameA]
lea eax, [eax + 0x4293d6]
push 0x40a76d
push eax
call dword [sym.imp.KERNEL32.dll_lstrcmpiA]
test eax, eax
je 0x40392b
push 0
push edi
push ebx
call dword [sym.imp.KERNEL32.dll_CopyFileA]
test eax, eax
je 0x403a42
push 0
push edi
call fcn.00405e76
cmp byte [0x476000], 0
je 0x403a00
push 0x476000
push ebx
call fcn.0040613a
jmp 0x403a06
push ebx
call fcn.00405c7e
push 0x40a7e4
push esi
call ebp
push dword [esp + 0x1c]
push esi
call ebp
push str.___
push esi
call ebp
push ebx
push esi
call ebp
push esi
call fcn.00405c36
push 0x476000
push esi
call fcn.00405952
test eax, eax
je 0x403a42
push eax
call dword [sym.imp.KERNEL32.dll_CloseHandle]
and dword [esp + 0x10], 0
inc byte [str.Au_.exe]
inc dword [esp + 0x14]
cmp dword [esp + 0x14], 0x1a
jl 0x40396b
jmp 0x40392b
cmp dword [0x44bad4], 0
je 0x403b01
push str.ADVAPI32.dll
call dword [sym.imp.KERNEL32.dll_GetModuleHandleA]
mov edi, eax
test edi, edi
je 0x403aec
mov esi, dword [sym.imp.KERNEL32.dll_GetProcAddress]
push str.OpenProcessToken
push edi
call esi
push str.LookupPrivilegeValueA
push edi
mov ebx, eax
call esi
push str.AdjustTokenPrivileges
push edi
mov ebp, eax
call esi
test ebx, ebx
mov esi, eax
je 0x403aec
test ebp, ebp
je 0x403aec
test esi, esi
je 0x403aec
lea eax, [esp + 0x1c]
push eax
push 0x28
call dword [sym.imp.KERNEL32.dll_GetCurrentProcess]
push eax
call ebx
test eax, eax
je 0x403aec
lea eax, [esp + 0x24]
xor edi, edi
push eax
push str.SeShutdownPrivilege
push edi
call ebp
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 esi
push 0
push 2
call dword [sym.imp.USER32.dll_ExitWindowsEx]
test eax, eax
jne 0x403b01
push 9
call fcn.00401440
mov eax, dword [0x44baec]
cmp eax, 0xffffffff
je 0x403b0f
mov dword [esp + 0x18], eax
push dword [esp + 0x18]
call dword [sym.imp.KERNEL32.dll_ExitProcess]