We wanted to call out some great adjacent research from the team at Sophoslabs Uncut that was released on December 21, 2021. Research groups frequently analyze similar (or in this case, identical) campaigns through their own unique lens. This is fantastic for the security community, as the campaign gets more eyes and different perspectives applied towards the same problem.
Elastic Security engineers have documented a less tedious way to find network beaconing from Cobalt Strike. In their full analysis (), Elastic Security team researchers Andrew Pease, Derek Ditch, and Daniel Stepanic walk users through the Elastic fleet policy, how to collect the beacon, beacon configuration, how to analyze its activity, and how you can set it up in your organization’s environment.
Elastic Security has verified a new destructive malware targeting Ukraine: Operation Bleeding Bear. Over the weekend, Microsoft released details about this multi-stage and destructive malware campaign that the Ukrainian National Cyber Security Coordination Center has been referring to as Operation Bleeding Bear.
The early stages of an intrusion usually include initial access, execution, persistence, and command-and-control (C2) beaconing. When structured threats use zero-days, these first two stages are often not detected. It can often be challenging and time-consuming to identify persistence mechanisms left by an advanced adversary as we saw in the 2020 SUNBURST supply chain compromise. Could we then have detected SUNBURST in the initial hours or days by finding its C2 beacon?
Following the discovery of Log4Shell, a vulnerability in Log4J2, Elastic released a blog post describing how users of our platform can leverage Elastic Security to help defend their networks. We also released an advisory detailing how Elastic products and users are impacted.
With our recent 7.16 Elastic Security product release, we improved our existing Linux malware feature by adding memory protection. In this blog, brought to you by Elastic’s Engineering Security Team, we lean into this recent advancement to show how we are protecting the world’s data from attack.
