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…
Read
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…
Read
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…
Read
Introduction I’ve finally moved up in the world and am pwning companies instead of n00bs, but all the workstations are locked down. What is this Group Policy thing? Why is it harshing my mellow? So, you’ve finally moved up into the big leagues. You’re no longer wasting your time hacking your friends, parents, or that…
Read
During an Internal Penetration Test or Adversarial Attack Simulation (Red Team), TrustedSec will deploy a rogue, Linux-based networking device onto a client’s network. These devices will sometimes obtain an IP address via DHCP and establish an outbound connection wherein we can perform our testing. Every client network is different, but we have noticed that a…
Read
We’ve all been there: you’ve completed your initial recon, sent in your emails to gather those leaked HTTP headers, spent an age configuring your malleable profile to be just right, set up your CDNs, and spun up your redirectors. Then it’s time, you send in your email aaaaaand…nothing. You can see from your DNS diagnostic…
Read
Over the last several days, TrustedSec has received queries on the best ways to contain, eradicate, and remediate the SolarWinds backdoor (aka #solarigate aka Sunburst). The TrustedSec Incident Response team has put together a playbook of recommended actions to provide some level of assurance that your organization is no longer affected by the backdoor. This…
Read
Or, “I’m Sorry, You Said You’re from Where Again?” In a prior webinar on creating weaponized Cross-Site Scripting (XSS) payloads, I mentioned that XSS payloads (written in JavaScript) could not change the HTTP Referer header. Malicious requests made through an XSS payload will often have an unexpected Referer header that does not generally make sense…
Read
Introduction Macros seem like the new hotness amongst hackers, but I thought macros were just simple scripts that some accountant in finance used to simplify their spreadsheets. How can I use and abuse these things to Hack the Planet and rule the world? How can something designed in the 90s still be relevant? In previous…
Read
With the release of Cobalt Strike 4.1, a new feature has been added that allows code to be run in a more OPSEC friendly manner. This is implemented through what has been termed Beacon Object Files (BOFs). In this post, I will outline some of the less obvious restrictions of BOFs and share my workflow…
Read