Cobalt Strike Infrastructure Downtime – March 2024
The Cobalt Strike download infrastructure will be down for a short while on Wednesday 13th March for routine maintenance. Work will begin around 15:00 GMT
Introducing the Mutator Kit: Creating Object File Monstrosities with Sleep Mask and LLVM
This is a joint blog written by William Burgess (@joehowwolf) and Henri Nurmi (@HenriNurmi). In our ‘Cobalt Strike and YARA: Can I Have Your Signature?’
Cobalt Strike Infrastructure Maintenance – January 2024
We will be making a small change to the Cobalt Strike infrastructure next week. This will not result in any downtime but will affect updates
Cobalt Strike and Outflank Security Tooling: Friends in Evasive Places
This is a joint blog written by the Cobalt Strike and Outflank teams. It is also available on the Outflank site. Over the past few months
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
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
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
Cobalt Strike 4.5: Fork&Run – you’re “history”
Cobalt Strike 4.5 is now available. This release sees new options for process injection, updates to the sleep mask and UDRL kits, evasion improvements and
Cobalt Strike infrastructure changes
We will be making some changes to the Cobalt Strike infrastructure in late November/early December. We are not anticipating any downtime but we wanted to