Function at 0x403995
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, 0x17c
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 byte [esp + 0x10], 0x20
call dword [sym.imp.COMCTL32.dll_InitCommonControls]
push esi
call dword [sym.imp.ole32.dll_OleInitialize]
mov dword [0x7d1410], eax
push esi
lea eax, [esp + 0x30]
push 0x160
push eax
push esi
push 0x7add00
call dword [sym.imp.SHELL32.dll_SHGetFileInfoA]
push str.NSIS_Error
push 0x7cd360
call fcn.004064b7
mov ebp, 0x804000
push ebp
push 0x2000
call dword [sym.imp.KERNEL32.dll_GetTempPathA]
call fcn.00403961
test eax, eax
jne 0x403a25
push 0x1ffb
push ebp
call dword [sym.imp.KERNEL32.dll_GetWindowsDirectoryA]
push str.Temp
push ebp
call fcn.004064da
call fcn.00403961
test eax, eax
je 0x403b66
mov edi, 0x7fa000
push edi
call dword [sym.imp.KERNEL32.dll_DeleteFileA]
call dword [sym.imp.KERNEL32.dll_GetCommandLineA]
push eax
push edi
call fcn.004064b7
push 0
call dword [sym.imp.KERNEL32.dll_GetModuleHandleA]
cmp byte [0x7fa000], 0x22
mov dword [0x7d1360], eax
mov eax, edi
jne 0x403a60
mov byte [esp + 0x10], 0x22
mov eax, 0x7fa001
push dword [esp + 0x10]
push eax
call fcn.00405fe5
push eax
call dword [sym.imp.USER32.dll_CharNextA]
mov dword [esp + 0x14], eax
mov cl, byte [eax]
test cl, cl
je 0x403af2
cmp cl, 0x20
jne 0x403a86
inc eax
cmp byte [eax], 0x20
je 0x403a80
cmp byte [eax], 0x22
mov byte [esp + 0x10], 0x20
jne 0x403a96
inc eax
mov byte [esp + 0x10], 0x22
cmp byte [eax], 0x2f
jne 0x403ace
inc eax
cmp byte [eax], 0x53
jne 0x403aaf
mov cl, byte [eax + 1]
or cl, 0x20
cmp cl, 0x20
jne 0x403aaf
or esi, 2
cmp dword [eax], 0x4352434e
jne 0x403ac5
mov cl, byte [eax + 4]
or cl, 0x20
cmp cl, 0x20
jne 0x403ac5
or esi, 4
cmp dword [eax - 2], 0x3d442f20
je 0x403ae0
push dword [esp + 0x10]
push eax
call fcn.00405fe5
cmp byte [eax], 0x22
jne 0x403a75
inc eax
jmp 0x403a75
and byte [eax - 2], 0
add eax, 2
push eax
push 0x7fc000
call fcn.004064b7
push esi
call fcn.00403315
mov ebx, eax
test ebx, ebx
jne 0x403b66
cmp dword [0x7d1374], eax
je 0x403b4f
push eax
push edi
call fcn.00405fe5
mov esi, eax
cmp esi, edi
jb 0x403b1e
cmp dword [esi], 0x3d3f5f20
je 0x403b1e
dec esi
jmp 0x403b0f
cmp esi, edi
mov ebx, str.Error_launching_installer
jb 0x403b8c
and byte [esi], 0
add esi, 4
push esi
call fcn.0040609c
test eax, eax
je 0x403b66
push esi
push 0x7fc000
call fcn.004064b7
push esi
push 0x7fe000
call fcn.004064b7
xor ebx, ebx
or dword [0x7d140c], 0xffffffff
call fcn.00403daf
push 1
mov dword [esp + 0x1c], eax
call fcn.004067c4
call fcn.00403d51
call dword [sym.imp.ole32.dll_OleUninitialize]
test ebx, ebx
je 0x403c9e
push 0x200010
push ebx
call fcn.00405d56
push 2
call dword [sym.imp.KERNEL32.dll_ExitProcess]
push str.nsu.tmp_
push ebp
call fcn.004064da
push 0
push ebp
call dword [sym.imp.KERNEL32.dll_CreateDirectoryA]
and dword [esp + 0x10], 0
mov esi, 0x7a7d00
mov edi, 0x7abd00
push ebp
push esi
mov word [0x7a7d00], 0x22
call fcn.004064da
push str.Au_.exe
push esi
call fcn.004064da
push 0x7a7d01
call dword [sym.imp.KERNEL32.dll_DeleteFileA]
test ebx, ebx
je 0x403c84
push 0x2000
push edi
push dword [0x7d1360]
call dword [sym.imp.KERNEL32.dll_GetModuleFileNameA]
lea eax, [eax + 0x7abcfa]
push 0x40a7ad
push eax
call dword [sym.imp.KERNEL32.dll_lstrcmpiA]
test eax, eax
je 0x403b66
push 0
push 0x7a7d01
push edi
call dword [sym.imp.KERNEL32.dll_CopyFileA]
test eax, eax
je 0x403c84
push 0
push 0x7a7d01
call fcn.004061fe
cmp byte [0x7fc000], 0
je 0x403c3d
push 0x7fc000
push edi
call fcn.004064b7
jmp 0x403c43
push edi
call fcn.00406001
push 0x40a824
push esi
call fcn.004064da
push dword [esp + 0x14]
push esi
call fcn.004064da
push str.___
push esi
call fcn.004064da
push edi
push esi
call fcn.004064da
push esi
call fcn.00405fba
push ebp
push esi
call fcn.00405ccf
test eax, eax
je 0x403c84
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 0x403baf
jmp 0x403b66
cmp dword [0x7d13f4], 0
je 0x403d39
mov esi, str.ADVAPI32.dll
push str.OpenProcessToken
push esi
call fcn.0040699d
push str.LookupPrivilegeValueA
push esi
mov ebp, eax
call fcn.0040699d
push str.AdjustTokenPrivileges
push esi
mov edi, eax
call fcn.0040699d
xor esi, esi
mov ebx, eax
cmp ebp, esi
je 0x403d25
cmp edi, esi
je 0x403d25
cmp ebx, esi
je 0x403d25
lea eax, [esp + 0x14]
push eax
push 0x28
call dword [sym.imp.KERNEL32.dll_GetCurrentProcess]
push eax
call ebp
test eax, eax
je 0x403d25
lea eax, [esp + 0x20]
push eax
push str.SeShutdownPrivilege
push esi
call edi
push esi
push esi
lea eax, [esp + 0x24]
push esi
push eax
push esi
push dword [esp + 0x28]
mov dword [esp + 0x34], 1
mov dword [esp + 0x40], 2
call ebx
push esi
push 2
call dword [sym.imp.USER32.dll_ExitWindowsEx]
test eax, eax
jne 0x403d39
push 9
call fcn.00401518
mov eax, dword [0x7d140c]
cmp eax, 0xffffffff
je 0x403d47
mov dword [esp + 0x18], eax
push dword [esp + 0x18]
call dword [sym.imp.KERNEL32.dll_ExitProcess]