Intro Now that BOFs are commonplace for Windows agents, some people have talked about wanting a non-Windows only version. In this blog post, we’ve got something for you: the same thing but for Linux/Mac. The process of building in memory loaders are the same, no matter the file format type. In this case, we’ll just…
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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…
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Introduction Let’s say an ‘Administrator’ lands on a target network host and wants to look around and ‘administer’ the system without uploading any new tools… How can I do that without burning any of my Script Kiddie tools? WMI or Windows Management Instrumentation or Windows Managed Infrastructure is an interface for managed components that provides…
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All businesses operate on the principle that a certain level of trust is necessary between the business itself and the IT components that comprise its supporting infrastructure. These components include hardware and software, as well as the vendors who provide services to the infrastructure. Securing a business supply chain is a big challenge, not only…
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The Problem On August 05, 2021, a member of the Conti ransomware group leaked some of the group’s internal playbooks and technical documentation. Irrespective of any details surrounding the leak or its contents, the event itself prompted a more widespread examination of how teams’ maintain their operational playbooks and documentation. A tweet by Mubix came…
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One topic that has always been of interest to me is how users actually use their computers. While TrustedSec does have the ability to understand a system when we encounter it, there are still mysteries around normal user behavior. Understanding user behavior becomes even more important when attempting to defeat next generation of EDRs that…
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Introduction Using and abusing the BITS service is a lot of fun. I can’t believe Windows just gives away this hacker tool for free. But wait, wait, are you telling me that there’s more? Does it come with a free blender? What else can this service do for me? In the last installment, we covered…
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Introduction Well, I finally popped a box, but the EDR keeps sucking up all my tools. There must be a way to do some basic things on the box without getting caught. How can I poke around and do some stuff without possibly burning all my tools? After all the hard work of getting onto…
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Intro Have you heard of the new Beacon Object File (BOF) hotness? Have you ever thought that you should be able to run those outside of Cobalt Strike? Well, if that’s the case, you came to the right place. In this post, we’ll go through the basic steps of understanding and building an in-memory loader…
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In the age of threat hunting, automated mass scanning, and the occasionally curious SOC, properly securing your command and control (C2) infrastructure is key to any engagement. While many setups today include a CDN Domain Front with a custom Nginx or Apache ruleset sprinkled on top, I wanted to share my recipe for success. Fully…
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