Cobalt Strike and YARA: Can I Have Your Signature?
Over the past few years, there has been a massive proliferation of YARA signatures for Beacon. We know from conversations with our customers that this
Stopping Cybercriminals From Abusing Security Tools
Microsoft’s Digital Crimes Unit (DCU), cybersecurity software company Fortra™ and Health Information Sharing and Analysis Center (Health-ISAC) are taking technical and legal action to disrupt
Revisiting the User-Defined Reflective Loader Part 1: Simplifying Development
This blog post accompanies a new addition to the Arsenal Kit – The User-Defined Reflective Loader Visual Studio (UDRL-VS). Over the past few months, we
Behind the Mask: Spoofing Call Stacks Dynamically with Timers
This blog introduces a PoC technique for spoofing call stacks using timers. Prior to our implant sleeping, we can queue up timers to overwrite its
Celebrating 10 Years of Cobalt Strike
Can you believe it? Cobalt Strike is 10 years old! Think back to the summer of 2012. The Olympics were taking place in London. CERN
Arsenal Kit Update: Thread Stack Spoofing
As I mentioned in the recent Roadmap Update blog post, we are in the process of expanding the Cobalt Strike development team and ramping up
There’s Another New Deputy in Town
Things are moving in the Cobalt Strike world…And they are moving… FAST. When I started my position with the Cobalt Strike team, I got to
Building Upon a Strong Foundation
In the weeks ahead, Cobalt Strike 4.6 will go live and will be a minor foundational release before we move into our new development model.
Joe’s Transition
My career is taking me in a new and exciting direction, and I am stepping down from my role on the Cobalt Strike team. I’ve
Incorporating New Tools into Core Impact
Core Impact has further enhanced the pen testing process with the introduction of two new modules. The first module enables the use of .NET assemblies,