Function at 0x40316f
Capabilities:
Accept command line arguments
Copy file
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 0x423b20
mov dword [0x4243d0], eax
call sub.KERNEL32.dll_lstrcpyA
mov esi, 0x42b400
mov edi, 0x400
push esi
push edi
call dword [sym.imp.KERNEL32.dll_GetTempPathA]
call fcn.0040313b
mov ebp, dword [sym.imp.KERNEL32.dll_lstrcatA]
test eax, eax
jne 0x4031ec
push 0x3fb
push esi
call dword [sym.imp.KERNEL32.dll_GetWindowsDirectoryA]
push str.Temp
push esi
call ebp
call fcn.0040313b
test eax, eax
je 0x403333
mov esi, 0x42a000
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]
push 0
call dword [sym.imp.KERNEL32.dll_GetModuleHandleA]
cmp byte [0x42a000], 0x22
mov dword [0x424320], eax
jne 0x403227
mov byte [esp + 0x14], 0x22
mov esi, 0x42a001
push dword [esp + 0x14]
push esi
call fcn.00405486
push eax
call dword [sym.imp.USER32.dll_CharNextA]
mov edi, eax
mov dword [esp + 0x1c], edi
jmp 0x4032a3
cmp cl, 0x20
jne 0x40324b
inc eax
cmp byte [eax], 0x20
je 0x403245
cmp byte [eax], 0x22
mov byte [esp + 0x14], 0x20
jne 0x40325b
inc eax
mov byte [esp + 0x14], 0x22
cmp byte [eax], 0x2f
jne 0x403293
inc eax
cmp byte [eax], 0x53
jne 0x403274
mov cl, byte [eax + 1]
or cl, 0x20
cmp cl, 0x20
jne 0x403274
or ebx, 2
cmp dword [eax], 0x4352434e
jne 0x40328a
mov cl, byte [eax + 4]
or cl, 0x20
cmp cl, 0x20
jne 0x40328a
or ebx, 4
cmp dword [eax - 2], 0x3d442f20
je 0x4032ab
push dword [esp + 0x14]
push eax
call fcn.00405486
cmp byte [eax], 0x22
jne 0x4032a3
inc eax
mov cl, byte [eax]
test cl, cl
jne 0x403240
jmp 0x4032bd
and byte [eax - 2], 0
add eax, 2
push eax
push 0x42a400
call sub.KERNEL32.dll_lstrcpyA
push ebx
call fcn.00402c57
xor ebx, ebx
cmp eax, ebx
mov dword [esp + 0x10], eax
jne 0x403333
cmp dword [0x424334], ebx
je 0x403323
push ebx
push edi
call fcn.00405486
mov esi, eax
jmp 0x4032e9
cmp dword [esi], 0x3d3f5f20
je 0x4032ed
dec esi
cmp esi, edi
jae 0x4032e0
cmp esi, edi
mov dword [esp + 0x10], str.Error_launching_installer
jb 0x40335f
and byte [esi], 0
add esi, 4
push esi
call fcn.0040553b
test eax, eax
je 0x403333
push esi
push 0x42a400
call sub.KERNEL32.dll_lstrcpyA
push esi
push 0x42a800
call sub.KERNEL32.dll_lstrcpyA
mov dword [esp + 0x10], ebx
or dword [0x4243cc], 0xffffffff
call fcn.00403534
mov dword [esp + 0x18], eax
call fcn.0040350f
call dword [sym.imp.ole32.dll_OleUninitialize]
cmp dword [esp + 0x10], 0
je 0x403452
push 0x200010
push dword [esp + 0x14]
call fcn.00405265
push 2
call dword [sym.imp.KERNEL32.dll_ExitProcess]
mov dword [esp + 0x14], ebx
mov edi, 0x41f4f1
mov esi, 0x41f4f0
mov ebx, 0x41f0f0
push 0x42b400
push edi
mov byte [0x41f4f0], 0x22
call sub.KERNEL32.dll_lstrcpyA
push str.ANSISu_.exe
push esi
call ebp
push edi
call dword [sym.imp.KERNEL32.dll_DeleteFileA]
cmp dword [esp + 0x10], 0
je 0x403438
push 0x400
push ebx
push dword [0x424320]
call dword [sym.imp.KERNEL32.dll_GetModuleFileNameA]
lea eax, [eax + 0x41f0e5]
push 0x409199
push eax
call dword [sym.imp.KERNEL32.dll_lstrcmpiA]
test eax, eax
je 0x403333
push 0
push edi
push ebx
call dword [sym.imp.KERNEL32.dll_CopyFileA]
test eax, eax
je 0x403438
push 0
push edi
call fcn.00405691
cmp byte [0x42a400], 0
je 0x4033f6
push 0x42a400
push ebx
call sub.KERNEL32.dll_lstrcpyA
jmp 0x4033fc
push ebx
call fcn.004054a2
push 0x409218
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.0040545a
push 0x42b400
push esi
call fcn.004051ed
test eax, eax
je 0x403438
push eax
call dword [sym.imp.KERNEL32.dll_CloseHandle]
and dword [esp + 0x10], 0
inc byte [str.ANSISu_.exe]
inc dword [esp + 0x14]
cmp dword [esp + 0x14], 0x1a
jl 0x403372
jmp 0x403333
cmp dword [0x4243b4], 0
je 0x4034f7
push str.ADVAPI32.dll
call dword [sym.imp.KERNEL32.dll_GetModuleHandleA]
mov edi, eax
test edi, edi
je 0x4034e2
mov esi, dword [sym.imp.KERNEL32.dll_GetProcAddress]
push str.OpenProcessToken
push edi
call esi
push str.LookupPrivilegeValueA
push edi
mov ebp, eax
call esi
push str.AdjustTokenPrivileges
push edi
mov ebx, eax
call esi
test ebp, ebp
mov edi, eax
je 0x4034e2
test ebx, ebx
je 0x4034e2
test edi, edi
je 0x4034e2
lea eax, [esp + 0x1c]
push eax
push 0x28
call dword [sym.imp.KERNEL32.dll_GetCurrentProcess]
push eax
call ebp
test eax, eax
je 0x4034e2
lea eax, [esp + 0x24]
xor esi, esi
push eax
push str.SeShutdownPrivilege
push esi
call ebx
push esi
push esi
lea eax, [esp + 0x28]
push esi
push eax
push esi
push dword [esp + 0x30]
mov dword [esp + 0x38], 1
mov dword [esp + 0x44], 2
call edi
push 0
push 2
call dword [sym.imp.USER32.dll_ExitWindowsEx]
test eax, eax
jne 0x4034f7
push 9
call fcn.0040141b
mov eax, dword [0x4243cc]
cmp eax, 0xffffffff
je 0x403505
mov dword [esp + 0x18], eax
push dword [esp + 0x18]
call dword [sym.imp.KERNEL32.dll_ExitProcess]