Comment by Joel_Mckay
1 day ago
I would recommend having a look at advanced side-channel PCIe bus DMA taps used by game cheats. They use a second computer along with an external HDMI mask-overlay mixer, to dump the target computers internal game-engine state through unencrypted DMA access to the overlay channel. Thus, gives the cheaters x-ray vision and aim-bot features for games protected by kernel level anti-cheat software.
Highly entertaining nuisance users. =3
Does this work with IOMMU?
it would be at a low enough level to reprogram IOMMU unless a hypervisor will prevent it.
if you have a hypervisor you can prevent the other to do the dma freely in memory because u can use iommu and things like amd-vi to separate it good. but if you dont have the hv below it, any devices with dma can do the duty across entire ram.
Unknown, but there were a few obvious bios options I saw that are needed to make the kits performant with some systems.
I still find it absurd people would go that far to cheat at a game. =3
> I still find it absurd people would go that far to cheat at a game. =3
I guess it turns the cheating into its own meta-game!
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