Restoring Dyld Memory Loading

Up until recently, we've enjoyed in-memory loading of Mach-O bundles courtesy of dyld and its NSCreateObjectFileImageFromMemory/NSLinkModule API methods. And while these methods still exist today, there is a key difference.. memory modules are now persisted to disk. So in this post we'll take a look at just what was changed in dyld, and see what we can do to restore this functionality... hopefully keeping our warez in memory for a little longer.... Read More »

g_CiOptions in a Virtualized World

With the leaking of code signing certificates and exploits for vulnerable drivers becoming common occurrences, adversaries are adopting the kernel as their new playground. And with Microsoft making technologies like Virtualization Based Security (VBS) and Hypervisor Code Integrity (HVCI) available, I wanted to take some time to understand just how vulnerable endpoints are when faced with an attacker set on escaping to Ring-0.... Read More »

NTLMquic

In this post, we'll dig into just how SMB over QUIC works, answer some of the immediate questions around which attacks are feasible, and show how we can repurpose some existing tooling to capture NTLM handshakes.... Read More »