Cobalt Strike DoS Vulnerability (CVE-2021-36798)
SentinelOne discovered a denial of service (DoS) vulnerability in Cobalt Strike. The bug (aka Hotcobalt) can cause a denial of service on a teamserver by using
CredBandit (In memory BOF MiniDump) – Tool review – Part 1
One of the things I find fascinating about being on the Cobalt Strike team is the community. It is amazing to see how people overcome
SSL certificate verification failure
UPDATE: This has now been fixed. I’ve amended this post to reflect that. If you ran the Cobalt Strike update program today, you may have
Simple DNS Redirectors for Cobalt Strike
This post, from Ernesto Alvarez Capandeguy of Core Security’s CoreLabs Research Team, describes techniques used for creating UDP redirectors for protecting Cobalt Strike team servers.
Cobalt Strike 4.3 – Command and CONTROL
Cobalt Strike 4.3 is now available. The bulk of the release involves updates to DNS processing but there are some other, smaller changes in there
Learn Pipe Fitting for all of your Offense Projects
Named pipes are a method of inter-process communication in Windows. They’re used primarily for local processes to communicate with eachother. They can also facilitate communication
Pushing back on userland hooks with Cobalt Strike
When I think about defense in the current era, I think of it as a game of instrumentation and telemetry. A well-instrumented endpoint provides a
Agent Deployed: Core Impact and Cobalt Strike Interoperability
Core Impact 20.3 has shipped this week. With this release, we’re revealing patterns for interoperability between Core Impact and Cobalt Strike. In this post, I’ll
A Red Teamer Plays with JARM
I spent a little time looking into Saleforce’s JARM tool released in November. JARM is an active tool to probe the TLS/SSL stack of a listening
Cobalt Strike 4.2 – Everything but the kitchen sink
Cobalt Strike 4.2 is now available. This release overhauls our user exploitation features, adds more memory flexibility options to Beacon, adds more behavior flexibility to