Function at 0x403985
Capabilities:
Accept command line arguments
Copy file
Create directory
Delete file
Get common file path
Get file system object information
Shutdown system
Terminate process

Disassembly:
sub esp, 0x180
push ebx
push ebp
push esi
xor esi, esi
push edi
mov dword [esp + 0x18], esi
mov ebx, str.Error_writing_temporary_file._Make_sure_your_temp_folder_is_valid.
mov dword [esp + 0x10], esi
mov byte [esp + 0x14], 0x20
call dword [sym.imp.COMCTL32.dll_InitCommonControls]
push esi
call dword [sym.imp.ole32.dll_OleInitialize]
mov dword [0x44bbf0], eax
push esi
lea eax, [esp + 0x34]
push 0x160
push eax
push esi
push 0x42f4cc
call dword [sym.imp.SHELL32.dll_SHGetFileInfoA]
push str.NSIS_Error
push 0x447b40
call fcn.00406494
mov ebp, 0x47e000
mov edi, 0x2000
push ebp
push edi
call dword [sym.imp.KERNEL32.dll_GetTempPathA]
call fcn.00403951
test eax, eax
jne 0x403a1a
push 0x1ffb
push ebp
call dword [sym.imp.KERNEL32.dll_GetWindowsDirectoryA]
push str.Temp
push ebp
call fcn.004064b2
call fcn.00403951
test eax, eax
je 0x403b65
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 [0x44bb40], eax
mov eax, esi
jne 0x403a58
mov byte [esp + 0x14], 0x22
mov eax, 0x474001
push dword [esp + 0x14]
push eax
call fcn.00405fc4
push eax
call dword [sym.imp.USER32.dll_CharNextA]
mov dword [esp + 0x1c], eax
mov cl, byte [eax]
test cl, cl
je 0x403aee
cmp cl, 0x20
jne 0x403a7e
inc eax
cmp byte [eax], 0x20
je 0x403a78
cmp byte [eax], 0x22
mov byte [esp + 0x14], 0x20
jne 0x403a8e
inc eax
mov byte [esp + 0x14], 0x22
cmp byte [eax], 0x2f
jne 0x403aca
inc eax
cmp byte [eax], 0x53
jne 0x403aa9
mov cl, byte [eax + 1]
or cl, 0x20
cmp cl, 0x20
jne 0x403aa9
or dword [esp + 0x10], 2
cmp dword [eax], 0x4352434e
jne 0x403ac1
mov cl, byte [eax + 4]
or cl, 0x20
cmp cl, 0x20
jne 0x403ac1
or dword [esp + 0x10], 4
cmp dword [eax - 2], 0x3d442f20
je 0x403adc
push dword [esp + 0x14]
push eax
call fcn.00405fc4
cmp byte [eax], 0x22
jne 0x403a6d
inc eax
jmp 0x403a6d
and byte [eax - 2], 0
add eax, 2
push eax
push 0x476000
call fcn.00406494
push dword [esp + 0x10]
call fcn.00403308
mov ebx, eax
cmp ebx, edi
jne 0x403b65
cmp dword [0x44bb54], edi
je 0x403b4e
push edi
push esi
call fcn.00405fc4
mov edi, eax
cmp edi, esi
jb 0x403b1d
cmp dword [edi], 0x3d3f5f20
je 0x403b1d
dec edi
jmp 0x403b0e
cmp edi, esi
mov ebx, str.Error_launching_installer
jb 0x403b8b
and byte [edi], 0
add edi, 4
push edi
call fcn.0040607b
test eax, eax
je 0x403b65
push edi
push 0x476000
call fcn.00406494
push edi
push 0x478000
call fcn.00406494
xor ebx, ebx
or dword [0x44bbec], 0xffffffff
call fcn.00403dae
push 1
mov dword [esp + 0x1c], eax
call fcn.0040679d
call fcn.00403d50
call dword [sym.imp.ole32.dll_OleUninitialize]
test ebx, ebx
je 0x403c9d
push 0x200010
push ebx
call fcn.00405d4b
push 2
call dword [sym.imp.KERNEL32.dll_ExitProcess]
push str.nsu.tmp_
push ebp
call fcn.004064b2
push 0
push ebp
call dword [sym.imp.KERNEL32.dll_CreateDirectoryA]
and dword [esp + 0x10], 0
mov esi, 0x4294cc
mov edi, 0x42d4cc
push ebp
push esi
mov word [0x4294cc], 0x22
call fcn.004064b2
push str.Au_.exe
push esi
call fcn.004064b2
push 0x4294cd
call dword [sym.imp.KERNEL32.dll_DeleteFileA]
test ebx, ebx
je 0x403c83
push 0x2000
push edi
push dword [0x44bb40]
call dword [sym.imp.KERNEL32.dll_GetModuleFileNameA]
lea eax, [eax + 0x42d4c6]
push 0x40a7ad
push eax
call dword [sym.imp.KERNEL32.dll_lstrcmpiA]
test eax, eax
je 0x403b65
push 0
push 0x4294cd
push edi
call dword [sym.imp.KERNEL32.dll_CopyFileA]
test eax, eax
je 0x403c83
push 0
push 0x4294cd
call fcn.004061dd
cmp byte [0x476000], 0
je 0x403c3c
push 0x476000
push edi
call fcn.00406494
jmp 0x403c42
push edi
call fcn.00405fe0
push 0x40a824
push esi
call fcn.004064b2
push dword [esp + 0x1c]
push esi
call fcn.004064b2
push 0x40a81c
push esi
call fcn.004064b2
push edi
push esi
call fcn.004064b2
push esi
call fcn.00405f99
push ebp
push esi
call fcn.00405cc4
test eax, eax
je 0x403c83
push eax
call dword [sym.imp.KERNEL32.dll_CloseHandle]
xor ebx, ebx
inc byte [str.Au_.exe]
inc dword [esp + 0x10]
cmp dword [esp + 0x10], 0x1a
jl 0x403bae
jmp 0x403b65
cmp dword [0x44bbd4], 0
je 0x403d38
mov esi, str.ADVAPI32.dll
push str.OpenProcessToken
push esi
call fcn.00406976
push str.LookupPrivilegeValueA
push esi
mov ebp, eax
call fcn.00406976
push str.AdjustTokenPrivileges
push esi
mov edi, eax
call fcn.00406976
xor esi, esi
mov ebx, eax
cmp ebp, esi
je 0x403d24
cmp edi, esi
je 0x403d24
cmp ebx, esi
je 0x403d24
lea eax, [esp + 0x1c]
push eax
push 0x28
call dword [sym.imp.KERNEL32.dll_GetCurrentProcess]
push eax
call ebp
test eax, eax
je 0x403d24
lea eax, [esp + 0x24]
push eax
push str.SeShutdownPrivilege
push esi
call edi
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 ebx
push esi
push 2
call dword [sym.imp.USER32.dll_ExitWindowsEx]
test eax, eax
jne 0x403d38
push 9
call fcn.00401518
mov eax, dword [0x44bbec]
cmp eax, 0xffffffff
je 0x403d46
mov dword [esp + 0x18], eax
push dword [esp + 0x18]
call dword [sym.imp.KERNEL32.dll_ExitProcess]