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
In-Memory Evasion
Many analysts and automated solutions take advantage of various memory detections to find injected DLLs in memory. Memory detections look at the properties (and content)
Cobalt Strike 3.10 – Хакер vs. 肉雞
Cobalt Strike 3.10 is now available. This release adds Unicode support to the Beacon payload, introduces a built-in report based on MITRE’s ATT&CK matrix, and performs endodontics on
Modern Defenses and YOU!
Part 9 of Advanced Threat Tactics covers a lot of my thoughts on evasion. The ideas in that lecture are still relevant, the defenses discussed
Cobalt Strike 3.9 – Livin’ in a Stager’s Paradise
Cobalt Strike 3.9 is now available. This release brings several additions to Malleable C2 with an emphasis on staging flexibility. Malleable HTTP/S Staging Stagers are
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
High-reputation Redirectors and Domain Fronting
Working on Cobalt Strike, I get some insight into what folks are trying to do with it. Recently, the use of domain fronting for redirectors