Okay, so the theory is that these minipatches are actually bot scans. While there is no visible detection code in the client, it is very possible that, when "downloading a new .dat file," they can be sending bytecode which is then codecaved into running a quick detection sweep. The first one I saw, 2 days ago, is when I made the prediction. seems pretty accurate. Also, The dat file size seemed to stay the same, only its checksum changed.
I'm not 100% sure on this but I've kept the old installer, so I will be reinstalling raw 9.44 and stepping through code as the update occurs so I can see exactly what's going on. My bet is, if this is what they're doing, its also how Neo users have been banned. Luckily, though, thanks to my recent update, this will be much harder to do. Detecting XenoBot.dll inside of Tibia will take nothing short of a
rootkit, which XenoBot already has
(the word malicious is used loosely on Wikipedia to decribe rootkits, but they also give this detail "[useful for] Conceal cheating in online games from software like Warden." Don't go around thinking I'm calling XenoBot a virus, lol)
If there is a type of stealth client-sided detection associated with these updates, I will have it reversed, analysed, trumped, and counter-acted within the week.