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
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
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
Writing Beacon Object Files: Flexible, Stealthy, and Compatible
Our colleagues over at Core Security have been doing great things with Cobalt Strike, making use of it in their own engagements. They wrote up
User Defined Reflective Loader (UDRL) Update in Cobalt Strike 4.5
The User Defined Reflective Loader (UDRL) was first introduced in Cobalt Strike 4.4. to allow the creation and use of a custom reflective loader. This
Sleep Mask Update in Cobalt Strike 4.5
The Sleep Mask Kit was first introduced in Cobalt Strike 4.4 to allow users to modify how the sleep mask function looks in memory in order to defeat static signatures that identified Beacon. This
Process Injection Update in Cobalt Strike 4.5
Process injection is a core component to Cobalt Strike post exploitation. Until now, the option was to use a built-in injection technique using fork&run. This