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'I had my fun' says hacker who used Call of Duty anti-cheat exploit to ban 'thousands upon thousands' of innocent players (www.pcgamer.com)

submitted 1 week ago by [email protected] to c/[email protected]

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[–] [email protected] 7 points 6 days ago (1 children)

First of all, I‘m not a fan of kernel level anti cheats either. I think your point shows the never ending cat and mouse game that game developers have to deal with. Implement what you described, catch a few cheaters. Now cheats developers add pseudo random deviations within the hitbox to their aim hack. From what I understood, the kernel level anti cheats aimed to abstract and attack at the single point that all cheats have in common. I am not up to date but I believe that single point is code, that is being injected into the game process, or another program messing with the allocated memory of the game process. At least that would make sense to me as to why such an intrusive implementation of anti cheat is necessary.

Anyway, in my opinion the gains do not justify it.

[–] [email protected] 5 points 6 days ago (1 children)

To your first point pseudorandom variations don't actually change the method of detection or it's effectiveness. Heuristic pattern matching as described will work until the movement and shots are no longer accurate enough or fast enough to matter.

To your second point, all anticheats do that. Kernel level anticheat looks at the running memory of all other programs. That's the difference. It can detect and scan anything that is open on your machine. Got a Firefox tab open with your bank details? Kernel level anti cheat knows it. Running obs and streaming? Hope obs has active encryption for your stream key in memory, because the anti cheat can grab it otherwise.

If it just looked at the memory of the affected game literally no one would have a problem with it, that's all anticheats.

Kernel level anticheat means you trust the entirety of your computer and everything running on it to at least the game publisher, if not an additional anticheat company.

[–] [email protected] 5 points 5 days ago

Interestingly enough valve has tried your method of catching cheaters your way by pattern matching with a neutral network in csgo. Sadly they never got to the confidence level where they made it automatically ban people because they didn't want to catch really good players in the crossfire. Instead they send them to overwatch, a system where sufficiently good players could judge the case and determine if the person is cheating.

But also there's many different types of cheats and that will only gets you so far. Information plays a big role in cs so wall hacks can go undetected if the player masks then which they do since they know they're probably watched. There's also subtle aim bot for that reason that doesn't snap your aim to your enemy precisely but corrects your manual aim by just correcting it a tiny bit.

As the other user described, it is an arms race and so far the cheaters keep finding ways to trick the algorithm after each ban wave. I still admire valve for not going kernel level with their anti cheat and trying the complicated and interesting route instead. However i think that is because valve tried kernel level when it was still resisted by gamers so they got big backlash at the time and went back to regular anti cheat.

I think what worked best for me was trust factor, which rates the trustworthiness of your steam account and since i have a legit account I've not played against cheaters since they implemented it and until i stopped playing. It sucks for new players with new steam accounts tho as they get matched with a lot of cheaters.