Function at 0x403758
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 0x7c6280
mov dword [0x7ca330], eax
call fcn.00406130
mov esi, 0x7fd000
mov edi, 0x2000
push esi
push edi
call dword [sym.imp.KERNEL32.dll_GetTempPathA]
call fcn.00403724
mov ebp, dword [sym.imp.KERNEL32.dll_lstrcatA]
test eax, eax
jne 0x4037d5
push 0x1ffb
push esi
call dword [sym.imp.KERNEL32.dll_GetWindowsDirectoryA]
push str.Temp
push esi
call ebp
call fcn.00403724
test eax, eax
je 0x403921
mov esi, 0x7f3000
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 [0x7f3000], 0x22
mov dword [0x7ca280], eax
mov eax, esi
jne 0x403813
mov byte [esp + 0x14], 0x22
mov eax, 0x7f3001
push dword [esp + 0x14]
push eax
call fcn.00405c58
push eax
call dword [sym.imp.USER32.dll_CharNextA]
mov dword [esp + 0x1c], eax
mov cl, byte [eax]
test cl, cl
je 0x4038a5
cmp cl, 0x20
jne 0x403839
inc eax
cmp byte [eax], 0x20
je 0x403833
cmp byte [eax], 0x22
mov byte [esp + 0x14], 0x20
jne 0x403849
inc eax
mov byte [esp + 0x14], 0x22
cmp byte [eax], 0x2f
jne 0x403881
inc eax
cmp byte [eax], 0x53
jne 0x403862
mov cl, byte [eax + 1]
or cl, 0x20
cmp cl, 0x20
jne 0x403862
or ebx, 2
cmp dword [eax], 0x4352434e
jne 0x403878
mov cl, byte [eax + 4]
or cl, 0x20
cmp cl, 0x20
jne 0x403878
or ebx, 4
cmp dword [eax - 2], 0x3d442f20
je 0x403893
push dword [esp + 0x14]
push eax
call fcn.00405c58
cmp byte [eax], 0x22
jne 0x403828
inc eax
jmp 0x403828
and byte [eax - 2], 0
add eax, 2
push eax
push 0x7f5000
call fcn.00406130
push ebx
call fcn.0040308e
cmp eax, edi
mov dword [esp + 0x10], eax
jne 0x403921
cmp dword [0x7ca294], edi
je 0x40390a
push edi
push esi
call fcn.00405c58
mov edi, eax
cmp edi, esi
jb 0x4038d3
cmp dword [edi], 0x3d3f5f20
je 0x4038d3
dec edi
jmp 0x4038c4
cmp edi, esi
mov dword [esp + 0x10], str.Error_launching_installer
jb 0x40394d
and byte [edi], 0
add edi, 4
push edi
call fcn.00405d0f
test eax, eax
je 0x403921
push edi
push 0x7f5000
call fcn.00406130
push edi
push 0x7f7000
call fcn.00406130
and dword [esp + 0x10], 0
or dword [0x7ca32c], 0xffffffff
call fcn.00403b6e
push 1
mov dword [esp + 0x1c], eax
call fcn.00406436
call fcn.00403b0f
call dword [sym.imp.ole32.dll_OleUninitialize]
cmp dword [esp + 0x10], 0
je 0x403a52
push 0x200010
push dword [esp + 0x14]
call fcn.004059cf
push 2
call dword [sym.imp.KERNEL32.dll_ExitProcess]
and dword [esp + 0x14], 0
mov edi, 0x7a9c19
mov esi, 0x7a9c18
mov ebx, 0x7a7c18
push 0x7fd000
push edi
mov byte [0x7a9c18], 0x22
call fcn.00406130
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 0x403a38
push 0x2000
push ebx
push dword [0x7ca280]
call dword [sym.imp.KERNEL32.dll_GetModuleFileNameA]
lea eax, [eax + 0x7a7c12]
push 0x40a76d
push eax
call dword [sym.imp.KERNEL32.dll_lstrcmpiA]
test eax, eax
je 0x403921
push 0
push edi
push ebx
call dword [sym.imp.KERNEL32.dll_CopyFileA]
test eax, eax
je 0x403a38
push 0
push edi
call fcn.00405e6c
cmp byte [0x7f5000], 0
je 0x4039f6
push 0x7f5000
push ebx
call fcn.00406130
jmp 0x4039fc
push ebx
call fcn.00405c74
push 0x40a7e4
push esi
call ebp
push dword [esp + 0x1c]
push esi
call ebp
push 0x40a7dc
push esi
call ebp
push ebx
push esi
call ebp
push esi
call fcn.00405c2c
push 0x7f5000
push esi
call fcn.00405948
test eax, eax
je 0x403a38
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 0x403961
jmp 0x403921
cmp dword [0x7ca314], 0
je 0x403af7
push str.ADVAPI32.dll
call dword [sym.imp.KERNEL32.dll_GetModuleHandleA]
mov edi, eax
test edi, edi
je 0x403ae2
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 0x403ae2
test ebp, ebp
je 0x403ae2
test esi, esi
je 0x403ae2
lea eax, [esp + 0x1c]
push eax
push 0x28
call dword [sym.imp.KERNEL32.dll_GetCurrentProcess]
push eax
call ebx
test eax, eax
je 0x403ae2
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 0x403af7
push 9
call fcn.00401440
mov eax, dword [0x7ca32c]
cmp eax, 0xffffffff
je 0x403b05
mov dword [esp + 0x18], eax
push dword [esp + 0x18]
call dword [sym.imp.KERNEL32.dll_ExitProcess]