Guide EAC DSE Bypass — Patching KernelBase Condition Variables

[byte_corvus]

Tired of EAC clashing with your driver signature enforcement? If you're tired of seeing those DSE errors while trying to map your own driver, here is a quick and dirty way to suppress the enforcement checks using memory patches in KernelBase.

The Method
This approach involves attaching to the EAC process and redirecting specific sync functions to an immediate return. It’s essentially a manual patch to keep the launcher from losing its mind when DSE is disabled.

1. Fire up Cheat Engine and attach it to the EAC process.
2. Open the Memory View, navigate to "Enumerate DLLs," and find kernelbase.dll.
3. Locate the following exports:
   - KERNELBASE.WakeConditionVariable
   - KERNELBASE.WakeAllConditionVariable
4. If there's a separate launcher process, patch KERNELBASE.WakeConditionVariable to a RET instruction immediately.
5. Once EAC is active, patch both WakeAllConditionVariable and WakeConditionVariable with RET.

Memory Scanning for EAC Hooks
For those looking to dig deeper into the byte-level checks, try scanning the EAC memory space for the byte value

33 (0x21)

and swap those occurrences to

-1 (0xFF)

This has been reported to stabilize the bypass in some environments.

Spoiler: Driver Compatibility & BSOD Prevention

If you are using a DSE source, make sure you purge any references to RTCore64. That driver is notorious for auto-running and causing instant BSODs when messed with in this context. Stick to the standard Intel drivers within your DSE setup for better stability.

It’s not the most elegant solution in the world—some might call it trash—but for a quick test environment where you need to load a driver without the EAC launcher throwing a fit, it works. Just don't expect this to stay UD on high-tier tournament platforms without further obfuscation.

Has anyone tried automating these patches with a custom DLL instead of manually hooking via CE?