Beware of Slow Downloads
I often receive emails that ask about slow file downloads with the Beacon payload. Here are the symptoms: When I get these emails, I usually
OPSEC Considerations for Beacon Commands
Update January 9, 2020 – This topic is now part of the Cobalt Strike documentation. Head over to the Beacon Command Behavior page for the
Cobalt Strike 3.8 – Who’s Your Daddy?
Cobalt Strike 3.8 is now available. This release adds features to spawn processes with an alternate parent process. This release also gives the operator control
Java Startup Bug in Java 1.8u131
If you recently updated your penetration testing environment, it’s possible you were greeted with a special surprise. Cobalt Strike and its team server will no
Cobalt Strike 3.7 – Cat, Meet Mouse
The 8th release of the Cobalt Strike 3.0 series is now available. The release extends Malleable C2 to influence how Beacon lives in memory, adds code-signing for executables, and gives
Cobalt Strike 3.6 – A Path for Privilege Escalation
Cobalt Strike 3.6 is now available. This release adds an API to use third-party privilege escalation exploits with Beacon and extends Malleable C2 to allow
Cobalt Strike 3.5.1 – Important Security Update
Cobalt Strike 3.5.1 is now available. This release addresses a remote code execution vulnerability in Cobalt Strike. This vulnerability was discovered after a report of
Cobalt Strike RCE. Active Exploitation Reported.
Summary There is a remote code execution vulnerability in the Cobalt Strike team server. A hot fix that breaks this particular exploit chain is available.
Cobalt Strike 3.5 – UNIX Post Exploitation
Cobalt Strike 3.5 is now available. This release adds an SSH client with a Beacon-like interface. This client allows you to conduct post-exploitation actions against
Why is rundll32.exe connecting to the internet?
Previously, I wrote a blog post to answer the question: why is notepad.exe connecting to the internet? This post was written in response to a generation