Let me give you an example. At a previous job as a devops, of my predecessors frequently used these "techniques, minus the encrypted database but I sure he would have done it if he knew how. So there was some buggy internal app they needed some new features added to and the person who wrote it thought he was clever and obfuscated the code. It took me a whopping 30 minutes churn through his 'clever' obfuscation scheme and the randomized variable were just a nuisance. Honestly his best obfuscation technique was his horrible code that made no sense.
Even OP's advice about running services on non-standard ports isn't sound. Who doesn't run a service scan? Even sites like Shodan do service discovery for you. I'm going to find whatever port your running ssh on if your running it.
Even OP's advice about running services on non-standard ports isn't sound. Who doesn't run a service scan? Even sites like Shodan do service discovery for you. I'm going to find whatever port your running ssh on if your running it.