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
Cobalt Strike 2023 Roadmap and Strategy Update
I blogged about the Cobalt Strike roadmap in March last year and while the fundamental tenets of our approach to R&D remain unaltered, a lot
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
Cobalt Strike 4.8: (System) Call Me Maybe
Cobalt Strike 4.8 is now available. This release sees support for system calls, options to specify payload guardrails, a new token store, and more. 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
Out Of Band Update: Cobalt Strike 4.7.2
Cobalt Strike 4.7.2 is now available. This is an out of band update to fix a remote code execution vulnerability that is rooted in Java
Out Of Band Update: Cobalt Strike 4.7.1
Cobalt Strike 4.7.1 is now available. This is an out of band update to fix an issue discovered in the 4.7 release that was reported
Cobalt Strike 4.7: The 10th Anniversary Edition
Cobalt Strike 4.7 is now available. This release sees support for SOCKS5, new options to provide flexibility around how BOFs live in memory, updates to
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
Out Of Band Update: Cobalt Strike 4.6.1
Cobalt Strike 4.6.1 is now available. This is an out of band update to fix a few issues that were discovered in the 4.6 release