Function at 0x40366d
Capabilities:
Accept command line arguments
Copy file
Create directory
Delete file
Get common file path
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 [0x408030]
push 0x8001
call dword [sym.imp.KERNEL32.dll_SetErrorMode]
push ebx
call dword [0x408288]
push 8
mov dword [0x7c7138], eax
call fcn.00405e6e
push ebx
push 0x160
mov dword [0x7c7020], eax
lea eax, [esp + 0x38]
push eax
push ebx
push 0x408a3b
call dword [0x408158]
push str.NSIS_Error
push 0x7c3020
call fcn.00405bd9
call dword [sym.imp.KERNEL32.dll_GetCommandLineA]
push eax
mov edi, 0x7f0000
push edi
call fcn.00405bd9
push ebx
call dword [sym.imp.KERNEL32.dll_GetModuleHandleA]
cmp byte [0x7f0000], 0x22
mov dword [0x7c7028], eax
mov eax, edi
jne 0x40370e
mov byte [esp + 0x14], 0x22
mov eax, 0x7f0001
push dword [esp + 0x14]
push eax
call fcn.0040596e
push eax
call dword [0x408228]
mov dword [esp + 0x1c], eax
jmp 0x403788
cmp cl, 0x20
jne 0x403730
inc eax
cmp byte [eax], 0x20
je 0x40372a
cmp byte [eax], 0x22
mov byte [esp + 0x14], 0x20
jne 0x403740
inc eax
mov byte [esp + 0x14], 0x22
cmp byte [eax], 0x2f
jne 0x403778
inc eax
cmp byte [eax], 0x53
jne 0x403759
mov cl, byte [eax + 1]
or cl, 0x20
cmp cl, 0x20
jne 0x403759
or esi, 2
cmp dword [eax], 0x4352434e
jne 0x40376f
mov cl, byte [eax + 4]
or cl, 0x20
cmp cl, 0x20
jne 0x40376f
or esi, 4
cmp dword [eax - 2], 0x3d442f20
je 0x403790
push dword [esp + 0x14]
push eax
call fcn.0040596e
cmp byte [eax], 0x22
jne 0x403788
inc eax
mov cl, byte [eax]
cmp cl, bl
jne 0x403725
jmp 0x4037a1
mov dword [eax - 2], ebx
add eax, 2
push eax
push 0x7f2000
call fcn.00405bd9
mov ebp, 0x7fa000
push ebp
push 0x2000
call dword [sym.imp.KERNEL32.dll_GetTempPathA]
call fcn.0040360f
test eax, eax
jne 0x4037df
push 0x1ffb
push ebp
call dword [sym.imp.KERNEL32.dll_GetWindowsDirectoryA]
push str.Temp
push ebp
call sub.KERNEL32.dll_lstrcatA
call fcn.0040360f
test eax, eax
je 0x403864
push 0x7f8000
call dword [sym.imp.KERNEL32.dll_DeleteFileA]
push esi
call fcn.004033c9
mov dword [esp + 0x10], eax
cmp eax, ebx
jne 0x403864
cmp dword [0x7c70a4], ebx
je 0x40384d
push ebx
push edi
call fcn.0040596e
mov esi, eax
jmp 0x403814
cmp dword [esi], 0x3d3f5f20
je 0x403818
dec esi
cmp esi, edi
jae 0x40380b
mov dword [esp + 0x10], str.Error_launching_installer
cmp esi, edi
jb 0x40388f
mov byte [esi], bl
add esi, 4
push esi
call fcn.00405f2c
test eax, eax
je 0x403864
push esi
push 0x7f2000
call fcn.00405bd9
push esi
push 0x7f4000
call fcn.00405bd9
mov dword [esp + 0x10], ebx
or dword [0x7c712c], 0xffffffff
call fcn.004055be
push 1
mov dword [esp + 0x1c], eax
call fcn.00405c95
call fcn.00403643
call dword [0x40828c]
cmp dword [esp + 0x10], ebx
je 0x40395e
push 0x200010
push dword [esp + 0x14]
call fcn.00405908
push 2
call dword [sym.imp.KERNEL32.dll_ExitProcess]
push str.nsu.tmp
push ebp
call sub.KERNEL32.dll_lstrcatA
mov esi, 0x7f6000
push esi
push ebp
call dword [sym.imp.KERNEL32.dll_lstrcmpiA]
test eax, eax
je 0x403864
push ebx
push ebp
call dword [sym.imp.KERNEL32.dll_CreateDirectoryA]
push ebp
call dword [sym.imp.KERNEL32.dll_SetCurrentDirectoryA]
cmp byte [0x7f2000], bl
jne 0x4038cd
push esi
push 0x7f2000
call fcn.00405bd9
push dword [esp + 0x1c]
push section..ndata
call fcn.00405bd9
push 0x41
pop eax
push 0x1a
mov word [0x7ca000], ax
pop edi
mov esi, 0x7a71d8
mov eax, dword [0x7c702c]
push dword [eax + 0x148]
push esi
call fcn.00406004
push esi
call dword [sym.imp.KERNEL32.dll_DeleteFileA]
cmp dword [esp + 0x10], ebx
je 0x403949
push 1
push esi
push 0x7fe000
call dword [sym.imp.KERNEL32.dll_CopyFileA]
test eax, eax
je 0x403949
push ebx
push esi
call fcn.0040625e
mov eax, dword [0x7c702c]
push dword [eax + 0x14c]
push esi
call fcn.00406004
push esi
call fcn.004058a7
cmp eax, ebx
je 0x403949
push eax
call dword [sym.imp.KERNEL32.dll_CloseHandle]
mov dword [esp + 0x10], ebx
inc byte [0x7ca000]
dec edi
jne 0x4038ec
push ebx
push ebp
call fcn.0040625e
jmp 0x403864
cmp dword [0x7c7114], ebx
je 0x4039e1
push 3
call fcn.00405e6e
push 4
mov ebp, eax
call fcn.00405e6e
push 5
mov esi, eax
call fcn.00405e6e
mov edi, eax
cmp ebp, ebx
je 0x4039cd
cmp esi, ebx
je 0x4039cd
cmp edi, ebx
je 0x4039cd
lea eax, [esp + 0x1c]
push eax
push 0x28
call dword [sym.imp.KERNEL32.dll_GetCurrentProcess]
push eax
call ebp
test eax, eax
je 0x4039cd
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 [0x408230]
test eax, eax
jne 0x4039e1
push 9
call fcn.00401398
mov eax, dword [0x7c712c]
cmp eax, 0xffffffff
je 0x4039ef
mov dword [esp + 0x18], eax
push dword [esp + 0x18]
jmp 0x403889