John Strand // In this webcast, we walk through different tools to establish and test your Command and Control (C2) detection capabilities. Why does this matter? Almost all organizations we test can’t detect these outgoing channels.
Luke Baggett // Imagine a scenario where a Penetration Tester is trying to set up command and control on an internal network blocking all outbound traffic, except traffic towards a few specific servers the tester has no access to. In this situation, there is still a last-ditch option the tester can use, that being DNS […]
Dakota Nelson* // Part 1: Image Formats What if I told you this adorable puppy was hiding a secret message? In this post, we’ll find out how this dog was convinced to hide a message for us… and how to learn its secrets. Along the way, we’ll learn a lot about how images work and […]
Luke Baggett // If you’re monitoring a network with internet access, it’s almost inevitable that you’re going to see a lot of traffic to and from Google servers. Blending in with Google traffic by using Google as a relay may help an attacker avoid detection. How could an attacker use Google as a relay? One […]
A Guest blog by Matthew Pawelski // A C2, or command-and-control, is used by attackers to control compromised systems. Most of these C2s are in control of large botnets, yet some are simply used by an attacker to have access to a system so they can pivot to another device or to steal credentials and […]
Joff Thyer // Picture a scenario whereby you are involved in an internal network penetration test. Perhaps you have succeeded with a spear phishing campaign and landed on an internal system, or perhaps you have been placed there to begin with. Being the l33t ninja penetration tester that you are, you lead with some low […]
Sally Vandeven // Evading anti-virus scanners has become a bit of a sport around BHIS. When we do C2 testing for our customers we start with a host on the internal network and create a reverse connection out to our C2 server. We then proceed to send various types of data in and out to […]