Varik's Blog https://varik.dev/blog Varik's blog en-us varikmatevosyan@gmail.com (Varik Matevosyan) varikmatevosyan@gmail.com (Varik Matevosyan) Thu, 15 Oct 2026 00:00:00 GMT https://varik.dev/blog/xnu/xnusp-xnu-learning-lab xnusp: Learning the Modern XNU Kernel by Building a Kernel Introspection CLI https://varik.dev/blog/xnu/xnusp-xnu-learning-lab A hands-on exercise series for the iOS kernel: with tfp0 on a vphone VM, build one CLI that derives the KASLR slide, finds kernproc, dumps both syscall tables and walks the SPTM-protected page tables, all against a fully stripped kernelcache. Thu, 15 Oct 2026 00:00:00 GMT varikmatevosyan@gmail.com (Varik Matevosyan) iOSXNUKernelSPTMPACvphonePage Tables