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Anyone else running into this after hitting the latest Vanguard update? I was playing around with my bootkit setup to bypass IOMMU and got hit with an immediate BSOD.
Seems like the devs are pushing harder on integrity checks at the boot level. I've been digging through the recent changes to the way they handle memory mapping and it looks like my previous hook for the driver communication is getting flagged the second I attempt to initialize.
For those of you trying to keep your main accounts clean, hold off on any complex boot-level stuff until we figure out the new telemetry trigger. I am currently trying to trace the stack to see if it is a standard integrity check or if they are doing something weirder with the hypervisor state.
I am half-tempted to pull the whole project back to a clean state and start from scratch, but I figured I would check here first. Has anyone else managed to bypass this without a total system wipe or a new HWID spoof?
Drop your experiences or any offsets you might have found if you managed to trace this. If anyone has a cleaner way to handle the callback without triggering the kernel monitor, let me know.
Code:
SYSTEM_SERVICE_EXCEPTION (vgk.sys)Seems like the devs are pushing harder on integrity checks at the boot level. I've been digging through the recent changes to the way they handle memory mapping and it looks like my previous hook for the driver communication is getting flagged the second I attempt to initialize.
For those of you trying to keep your main accounts clean, hold off on any complex boot-level stuff until we figure out the new telemetry trigger. I am currently trying to trace the stack to see if it is a standard integrity check or if they are doing something weirder with the hypervisor state.
- Check your traces: If you are using a custom loader, strip it down to the basics and see if the crash persists without the IOMMU manipulation.
- Kernel-mode: Has anyone confirmed if they updated the base address randomization for vgk.sys?
- Hardware side: Could be a collision with the way certain KMBox setups talk to the system now that they are checking for specific HID response times.
I am half-tempted to pull the whole project back to a clean state and start from scratch, but I figured I would check here first. Has anyone else managed to bypass this without a total system wipe or a new HWID spoof?
Drop your experiences or any offsets you might have found if you managed to trace this. If anyone has a cleaner way to handle the callback without triggering the kernel monitor, let me know.
