This post looks at the recent trend of pulling Azure tokens from Office process memory and tries to identify just how these tokens were loaded, how Office handles a Microsoft Account (MSA), and how we can recover cached credentials from the Token Broker Cache.... Read More »
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 »
In this post we are going to look at one such technique that I thought was cool while playing around with the Windows Object Manager, and which should allow us to load an arbitrary DLL of our creation into a Windows process during initial execution, something that I've been calling "Object Overloading" for reasons which will hopefully become apparent in this post.... Read More »
Recently I've been looking at the .NET CLR internals and wanted to understand what further techniques may be available for executing unmanaged code from the managed runtime. This post contains a snipped of some of the weird techniques that I found.... Read More »
While working on some tooling recently I revisited the topic of .NET unmanaged exports and wanted to know just why this works in the way that it does. After all, by now we've all seen the COM calls required to spin up the CLR, so what makes unmanaged exports so special?... Read More »