Mike Felch // The Hunt for Initial Access With the default disablement of VBA macros originating from the internet, Microsoft may be pitching a curveball to threat actors and red teams that will inevitably make initial access a bit more difficult to achieve. Over the last year, I have invested some research time in pursuing […]
Brian Fehrman // Many of you have likely heard of Domain Fronting. Domain Fronting is a technique that can allow your C2 traffic to blend in with a target’s traffic by making it appear that it is calling out to the domain owned by your target. This is a great technique for red teamers to […]
Timecode links take you to YouTube: 4:11 – Infrastructure & Background8:28 – Overview & Breakdown of Attack Methodology and Plans11:35 – Start of Attack (Gaining Access), Password Spraying Toolkit15:24 – Mailsniper, Retrieve Global Access List21:58 – Lateral Movement, OWA, VPN, SSH27:05 – Scanning/Enumeration, Nmap SSH Brute Force, “Find Open”, Movement, Gaining Access34:07 – Gaining Access, […]
Do your PowerShell scripts keep getting caught? Tired of dealing with EDRs & Windows Defender every time you need to pop a box? In this one-hour podcast, originally recorded as a live webcast, we introduce a somewhat new Red Team approach that we call BYOI (Bring Your Own Interpreter). Download slides: https://www.activecountermeasures.com/presentations/ Turns out, by […]
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Carrie Roberts //* (Updated 2/12/2020) ADVISORY: The techniques and tools referenced within this blog post may be outdated and do not apply to current situations. However, there is still potential for this blog entry to be used as an opportunity to learn and to possibly update or integrate into modern tools and techniques. Note: Windows […]
Darin Roberts // In previous blogs, I have shown how to get various C2 sessions. In this blog, I will be showing how to do C2 over ICMP. First, what is ICMP? ICMP is Internet Control Message Protocol. It allows internet-connected devices to send error messages back to the source IP address when problems in […]
Craig Vincent// This all started with a conversation I was having with a few other BHIS testers. At the time, I was testing a web application that used WebSockets. The app was giving me headaches, and I was venting my frustration. Penetration testers, red teams, and baddies are always looking for new ways to sneak […]
Darin Roberts// If you have been in the security field for any length of time at all you have heard the term C2. You might have heard it also called C&C or Command and Control. I will refer to it as C2 as here at BHIS, that is what we do. Some of you might […]
Lee Kagan* // Expanding upon the previous post in this series, I decided to rewrite C2K (find it here) to change its behavior and options for the user. In this post we will walk through the changes to C2K as well as re-deploy a demo C2 infrastructure with all the new features. It is worth […]
