Function at 0x403248
Capabilities:
Accept command line arguments
Copy file
Create directory
Delete file
Get common file path
Get file system object information
Set current directory
Shutdown system
Terminate process

Disassembly:
sub esp, 0x180
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.
xor esi, esi
mov byte [esp + 0x14], 0x20
call dword [sym.imp.COMCTL32.dll_InitCommonControls]
push 0x8001
call dword [sym.imp.KERNEL32.dll_SetErrorMode]
push ebx
call dword [sym.imp.ole32.dll_OleInitialize]
push 8
mov dword [0x43d9b8], eax
call fcn.00405789
push ebx
push 0x160
mov dword [0x43d8c0], eax
lea eax, [esp + 0x38]
push eax
push ebx
push 0x4073db
call dword [sym.imp.SHELL32.dll_SHGetFileInfoA]
push str.NSIS_Error
push 0x43b8c0
call fcn.004056a6
call dword [sym.imp.KERNEL32.dll_GetCommandLineA]
push eax
mov edi, 0x452000
push edi
call fcn.004056a6
push ebx
call dword [sym.imp.KERNEL32.dll_GetModuleHandleA]
cmp byte [0x452000], 0x22
mov dword [0x43d8c8], eax
mov eax, edi
jne 0x4032e9
mov byte [esp + 0x14], 0x22
mov eax, 0x452001
push dword [esp + 0x14]
push eax
call fcn.0040543b
push eax
call dword [sym.imp.USER32.dll_CharNextA]
mov dword [esp + 0x1c], eax
jmp 0x403363
cmp cl, 0x20
jne 0x40330b
inc eax
cmp byte [eax], 0x20
je 0x403305
cmp byte [eax], 0x22
mov byte [esp + 0x14], 0x20
jne 0x40331b
inc eax
mov byte [esp + 0x14], 0x22
cmp byte [eax], 0x2f
jne 0x403353
inc eax
cmp byte [eax], 0x53
jne 0x403334
mov cl, byte [eax + 1]
or cl, 0x20
cmp cl, 0x20
jne 0x403334
or esi, 2
cmp dword [eax], 0x4352434e
jne 0x40334a
mov cl, byte [eax + 4]
or cl, 0x20
cmp cl, 0x20
jne 0x40334a
or esi, 4
cmp dword [eax - 2], 0x3d442f20
je 0x40336b
push dword [esp + 0x14]
push eax
call fcn.0040543b
cmp byte [eax], 0x22
jne 0x403363
inc eax
mov cl, byte [eax]
cmp cl, bl
jne 0x403300
jmp 0x40337c
mov dword [eax - 2], ebx
add eax, 2
push eax
push 0x453000
call fcn.004056a6
mov ebp, 0x457000
push ebp
push 0x1000
call dword [sym.imp.KERNEL32.dll_GetTempPathA]
call fcn.004031ea
test eax, eax
jne 0x4033b6
push 0xffb
push ebp
call dword [sym.imp.KERNEL32.dll_GetWindowsDirectoryA]
push str.Temp
push ebp
call sub.KERNEL32.dll_lstrcatA
call fcn.004031ea
test eax, eax
je 0x403434
push 0x456000
call dword [sym.imp.KERNEL32.dll_DeleteFileA]
push esi
call fcn.00402fa5
mov dword [esp + 0x10], eax
cmp eax, ebx
jne 0x403434
cmp dword [0x43d924], ebx
je 0x403424
push ebx
push edi
call fcn.0040543b
mov esi, eax
jmp 0x4033eb
cmp dword [esi], 0x3d3f5f20
je 0x4033ef
dec esi
cmp esi, edi
jae 0x4033e2
mov dword [esp + 0x10], str.Error_launching_installer
cmp esi, edi
jb 0x40345f
mov byte [esi], bl
add esi, 4
push esi
call fcn.00405847
test eax, eax
je 0x403434
push esi
push 0x453000
call fcn.004056a6
push esi
push 0x454000
call fcn.004056a6
mov dword [esp + 0x10], ebx
or dword [0x43d9ac], 0xffffffff
call fcn.004050ab
mov dword [esp + 0x18], eax
call fcn.0040321e
call dword [sym.imp.ole32.dll_OleUninitialize]
cmp dword [esp + 0x10], ebx
je 0x40352e
push 0x200010
push dword [esp + 0x14]
call fcn.004053d5
push 2
call dword [sym.imp.KERNEL32.dll_ExitProcess]
push str.nsu.tmp
push ebp
call sub.KERNEL32.dll_lstrcatA
mov esi, 0x455000
push esi
push ebp
call dword [sym.imp.KERNEL32.dll_lstrcmpiA]
test eax, eax
je 0x403434
push ebx
push ebp
call dword [sym.imp.KERNEL32.dll_CreateDirectoryA]
push ebp
call dword [sym.imp.KERNEL32.dll_SetCurrentDirectoryA]
cmp byte [0x453000], bl
jne 0x40349d
push esi
push 0x453000
call fcn.004056a6
push dword [esp + 0x1c]
push section..ndata
call fcn.004056a6
push 0x41
pop eax
push 0x1a
mov word [0x43f000], ax
pop edi
mov esi, 0x42c4f8
mov eax, dword [0x43d8cc]
push dword [eax + 0x120]
push esi
call fcn.0040591f
push esi
call dword [sym.imp.KERNEL32.dll_DeleteFileA]
cmp dword [esp + 0x10], ebx
je 0x403519
push 1
push esi
push 0x459000
call dword [sym.imp.KERNEL32.dll_CopyFileA]
test eax, eax
je 0x403519
push ebx
push esi
call fcn.00405b79
mov eax, dword [0x43d8cc]
push dword [eax + 0x124]
push esi
call fcn.0040591f
push esi
call fcn.00405374
cmp eax, ebx
je 0x403519
push eax
call dword [sym.imp.KERNEL32.dll_CloseHandle]
mov dword [esp + 0x10], ebx
inc byte [0x43f000]
dec edi
jne 0x4034bc
push ebx
push ebp
call fcn.00405b79
jmp 0x403434
cmp dword [0x43d994], ebx
je 0x4035b1
push 3
call fcn.00405789
push 4
mov ebp, eax
call fcn.00405789
push 5
mov esi, eax
call fcn.00405789
mov edi, eax
cmp ebp, ebx
je 0x40359d
cmp esi, ebx
je 0x40359d
cmp edi, ebx
je 0x40359d
lea eax, [esp + 0x1c]
push eax
push 0x28
call dword [sym.imp.KERNEL32.dll_GetCurrentProcess]
push eax
call ebp
test eax, eax
je 0x40359d
lea eax, [esp + 0x24]
push eax
push str.SeShutdownPrivilege
push ebx
call esi
push ebx
push ebx
push ebx
lea eax, [esp + 0x2c]
push eax
push ebx
push dword [esp + 0x30]
mov dword [esp + 0x38], 1
mov dword [esp + 0x44], 2
call edi
push ebx
push 2
call dword [sym.imp.USER32.dll_ExitWindowsEx]
test eax, eax
jne 0x4035b1
push 9
call fcn.0040141a
mov eax, dword [0x43d9ac]
cmp eax, 0xffffffff
je 0x4035bf
mov dword [esp + 0x18], eax
push dword [esp + 0x18]
jmp 0x403459