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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

Blog

So, you won a regional and you’re headed to National CCDC

The 2015 National CCDC season started with 100+ teams across 10 regions. Now, there are 10 teams left and they’re headed to the National CCDC

Blog

Cobalt Strike 2.4 – A Pittance for Post-Exploitation

Cobalt Strike 2.4 is now available. If you use Beacon for post-exploitation, you’ll find a lot to like in this release. Here’s the highlights: Post-Exploitation Jobs

Blog

Reverse Port Forward through a SOCKS Proxy

I had a friend come to me with an interesting problem. He had to get a server to make an outbound connection and evade some

Blog

Training Recommendations for Threat Emulation and Red Teaming

A few weeks ago, I had someone write and ask which training courses I would recommend to help setup a successful Red Team program. If

Blog

The First Five Minutes

March and April are CCDC season. This is the time of the year when teams of college students get to compete against each other as

Blog

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

Blog

My Favorite PowerShell Post-Exploitation Tools

PowerShell became a key part of my red team toolkit in 2014. Cobalt Strike 2.1 added PowerShell support to the Beacon payload and this has made

Blog

Another Night, Another Actor

Earlier last year, I had a frantic call from a customer. They needed to make a small change to Beacon’s communication pattern and quickly. This

Blog

DNS Communication is a Gimmick

I added DNS Communication to Cobalt Strike in June 2013 and refined it further in July 2013. On sales calls and at conferences I get

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