The Cobalt Strike Trial’s Evil Bit
RFC 3514 proposes an IPv4 flag to allow traffic to flag itself as malicious or not. This RFC’s authors reason that if malicious programs opt
Cobalt Strike 3.0 – Advanced Threat Tactics
Cobalt Strike’s mission is to help security professionals emulate “advanced threat tactics” during their engagements. I’ve executed on this since the product’s 2012 release. Cobalt
The Aggressor Project (Preview)
If you’ve run into me at a conference during the 2015 calendar year, there’s a strong chance you’ve heard about or saw the Aggressor project.
User-defined Storage-based Covert Communication
One of my favorite Cobalt Strike technologies is Malleable C2. This is a domain specific language for user-defined storage-based covert communication. That’s just a fancy
Scripting Beacons and Deploying Persistence
One common Cobalt Strike feature request is an API to script the Beacon payload. Doing this right is a big project and it requires some
How I tunnel Meterpreter through Beacon
I write so many blog posts about Beacon, I should just give up and call this the Beacon blog. Beacon is Cobalt Strike’s post-exploitation agent
Interactive Cortana Programming
Cortana is the scripting engine built into Armitage and Cobalt Strike. It’s based on my Sleep scripting language. Most scripting languages have a REPL (Read,
How VPN Pivoting Works (with Source Code)
A VPN pivot is a virtual network interface that gives you layer-2 access to your target’s network. Rapid7’s Metasploit Pro was the first pen testing product
Why can’t I psexec with EXE::Custom?
Seasoned Metasploit Framework users know that it’s a bad idea to let the framework generate an executable for you. The framework’s encoders are not a
Evolution of a Modern Hacking Payload
One of the most important features in Cobalt Strike is its Beacon payload. This is my capability to model advanced attackers. In this post, I’d