/qa/ - Question & Answer

i recently did some reversing on eac to emulate it and after breaking down their sub contextualized memory synchronization layers i found that their cr3 pivot swaps at 0xfffff8023a5de7f0 were completely vulnerable to page walk misalignment desyncs allowing for full thread deserialization within a self referencing enclave buffer this meant that by hyper extending the idt remap via a segmented ept hook at 0xfffff80764bb1290 i could seamlessly mirror syscall return states into an orphaned pml4 table effectively circumventing their heuristic based dispatcher validation eac s syscall gating handler sgh at 0x7ff67892f1d0 completely fails when you invoke a context aware tlb cache stall forcing their ntqueryvirtualmemoryinvocation layer into a false positive loop rendering their entire integrity verification stuck in a deferred stack traversal exception by artificially injecting a context switching null descriptor into their dr7 register offsets i was able to overload their event queue stack making eac believe it was still running while actually being fully desynchronized from the windows object manager to permanently halt eac service execution i hooked their obfuscated watchdog timer routine eac watchdog proc at 0xfffff80a37d45e90 and inverted its call stack through a synthetic race condition which forced their thread context to misalign its service dispatch table this caused their kernel resident page scanner to unmap itself leaving the entire anti cheat infrastructure frozen in a self referential memory loop by force injecting a recursive ntsuccess 0xc0000420 handler into their apc queue the entire system collapses into a segmented pte reallocation deadlock ensuring eac never recovers at this point the entire anti cheat exists in a suspended quantum state where their thread scheduler no longer acknowledges execution but continues reporting uptime to the watchdog service eac is finished