SSL certificate verification failure
UPDATE: This has now been fixed. I’ve amended this post to reflect that. If you ran the Cobalt Strike update program today, you may have
Simple DNS Redirectors for Cobalt Strike
This post, from Ernesto Alvarez Capandeguy of Core Security’s CoreLabs Research Team, describes techniques used for creating UDP redirectors for protecting Cobalt Strike team servers.
Raphael’s Transition
Friday was my last day at HelpSystems. I spent the day on the #Aggressor channel on Slack, put some final touches on a 12 month
Cobalt Strike 4.3 – Command and CONTROL
Cobalt Strike 4.3 is now available. The bulk of the release involves updates to DNS processing but there are some other, smaller changes in there
verify.cobaltstrike.com outage summary
Cobalt Strike’s update process was degraded due to a data center outage that affected https://verify.cobaltstrike.com. The verify server is back up and the functionality of
Cobalt Strike 4.2 – Everything but the kitchen sink
Cobalt Strike 4.2 is now available. This release overhauls our user exploitation features, adds more memory flexibility options to Beacon, adds more behavior flexibility to
Beacon Object File ADVENTURES: Some Zerologon, SMBGhost, and Situational Awareness
Cobalt Strike can use PowerShell, .NET, and Reflective DLLs for its post-exploitation features. This is the weaponization problem set. How to take things, developed outside
Cobalt Strike 4.1 – The Mark of Injection
Cobalt Strike 4.1 is now available. This release introduces a new way to build post-ex tools that work with Beacon, pushes back on a generic
SSL certificate verification for failed
TL;DR a certificate for part of the Cobalt Strike update infrastructure changed. Download the 20200511 distribution package to avoid certificate verification errors. If you recently
Cobalt Strike joins Core Impact at HelpSystems, LLC (now Fortra)
I founded Strategic Cyber LLC in 2012 to advocate a vision of threat-representative security testing. Over time, Cobalt Strike became the de facto commercial standard for red