Cobalt Strike 4.10 is now available. This release introduces BeaconGate, the Postex Kit, and Sleepmask-VS. In addition, we have overhauled the Sleepmask API, refreshed the Jobs UI, added new BOF APIs, added support for hot swapping C2 hosts, and more. This has been a longer release cycle than in previous releases to allow us to […]
Cornerstone: Releases
Out of Band Update: Cobalt Strike 4.9.1
Cobalt Strike 4.9.1 is now available. This is an out of band update to fix an issue that was discovered in the 4.9 release that we felt would negatively impact customers as they start to roll out the release and for which there is no straightforward workaround. We also took the opportunity to address a […]
Cobalt Strike 4.9: Take Me To Your Loader
Cobalt Strike 4.9 is now available. This release sees an overhaul to Cobalt Strike’s post exploitation capabilities to support user defined reflective loaders (UDRLs), the ability to export Beacon without a reflective loader which adds official support for prepend-style UDRLs, support for callbacks in a number of built-in functions, a new in-Beacon data store and […]
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 had originally planned to get this release out late in 2022 but progress was stymied due to the 4.7.1 and 4.7.2 patch releases that we had to put out to […]
Red Team Bundle Quote (CTA)
Equip your experienced red teamers with this testing bundle that features Cobalt Strike, an adversary simulation tool ideal for post-exploitation efforts, and OST, an expertly developed and assembled set of offensive security tools intended to assist in remaining undetected. Though both solutions are effective independently, OST and Cobalt Strike can empower red teamers even further […]
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 Swing but which can be exploited in Cobalt Strike. Remote Code Execution Vulnerability I’d like to start by giving credit to Rio Sherri (0x09AL) and Ruben Boonen (FuzzySec) from the […]
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 to be impacting users, and for which there was no workaround. We also took the opportunity to address a vulnerability that was reported shortly after the 4.7 release, along with […]
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 how Beacon sleeps and a number of other changes that have been requested by our users. We’ve also given the user interface a bit of a refresh (including support for […]
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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 that were reported to be impacting users and for which there was no workaround. This does not affect the 4.7 release, which is still on track to ship this summer. […]
Cobalt Strike 4.6: The Line In The Sand
Cobalt Strike 4.6 is now available. As I mentioned in the recent Roadmap Update blog post, this isn’t a regular release, as it mostly focuses on security updates. There are also a couple of useful updates for users. A major release is planned for this summer, so this release lays the groundwork for the changes […]