I asked Helix and confirm that Anti hacker suite can solve my problem so I purchased this software and configured on my server. After I went through the whole configuration process and start running. It caught 3 injections exploit right away which was amazed. I closely monitored all my sites for two days and I got all my websites safe.
It is not just protecting your Joomla websites. It protects other PHP systems too.
It is a true salvation for my server, my websites, my clients and my business. Now I can sleep well every night and no more clients calling me in the midnight. I gave 10 stars!