Zeek Blog
Zeek in Action, Video 6, How to Monitor Wireless Networks
In this episode, Richard looks at the complexities of monitoring your wireless network for defensive purposes using a variety of tools such as, but not limited to, Zeek, Parrot Security, Brim and more.
Zeek in Action, Video 5, What is this New Device?
In this episode, Richard Bejtlich looks at how to use Zeek, Rumble and Humio to learn more about assets you have discovered on your network.
Zeek in Action, Video 4, Where Should I Put My Sensor?
In this episode, Richard Bejtlich explores how to figure out where to put a sensor on your network.
Zeek 4.1 Release Candidate
The Zeek development team is excited to publish a release candidate of our next feature release, Zeek 4.1. This version includes the following highlights: Overhauled SSL/X509 processing to make its logging output more helpful and compact. In particular, x509.log is...
ZeekWeek 2021 – Registration Open!
ZeekWeek 2021 will be held 13-15 October at the AT&T Hotel and Conference Center located in Austin, Texas. Registration Open!
ZeekWeek 2021 – Call For Participation – Speakers and Sponsors
UPDATES: Call for Papers - Deadline Extended to 25 August 2021; Due to the Delta Covid variant we are also allowing for remote presentations. If you aren't comfortable traveling to Austin, but would like to submit a talk, please do so. ZeekWeek 2021 will be held...
Functions, hooks, and events. Oh my!
In this blog post Anthony Kasza explains the subtle differences between function, hook and event types in the Zeek scripting language.
Zeek in Action, Video 3, Comparisons of Data Sources
In this episode, Richard Bejtlich looks at PCAPs from Tcpreplay using Zeek, Brim Security and Wireshark.
Detecting the Facefish Linux Rootkit with Zeek
In this blog post, Keith J. Jones, PhD with Corelight Labs walks readers through detecting the Facefish Linux Rootkit using Zeek.
Zeek Monthly Newsletter – Issue 10 – May 2021
Zeek Monthly Newsletter – Issue 10 – May 2021 – NOW AVAILABLE
Zeek In Action, Video 2, Tracing a Trickbot Infection
In this episode of Zeek in Action, Richard Bejtlich traces a trickbot infection known as CATBOMBER using try.zeek.org.
Zeek Monthly Newsletter – Issue 9 – April 2021
Zeek Monthly Newsletter – Issue 9 – April 2021 – NOW AVAILABLE!
Announcing the Zeek Training Subgroup
Announcing the Zeek Project Training Subgroup – Are you a Zeek user who is passionate about working with the Zeek community to improve one of the most crucial areas of the Zeek Project – the Training material? If so, then this is an opportunity to get involved with various aspects of Zeek Training. – Join today!
Zeek in Enterprise Day
Announcing Zeek in Enterprise Day – Does your organization incorporate Zeek into its commercial offerings? Do you want to let the Zeek Community know about your product? The Zeek in Enterprise Day is just for you!! Sign up and participate today.
Announcing the Zeek Testing Subgroup
Announcing the Zeek Project Testing Subgroup. The goal of the subgroup is to stress-test new versions of Zeek This blog post details the outline and structure of this subgroup.
Zeek’s IPSec Protocol Analyzer
Keith J. Jones, PhD explains how he added his IPsec Spicy Protocol Analyzer to Zeek. Want to know how he did it? The check out this post.
Welcome to Zeek in Action, Video 1, Suspected Malware Compromise
Richard Bejtlich shares Video 1, Suspected Malware Compromise in this episode of Zeek in Action – in this video, Richard exams network traffic using Zeek and related applications.
Spicy 1.0 — Robust Parsers for Protocols & File Formats
We are happy to announce the release of Spicy 1.0, an open source parser generator that makes it much easier for Zeek—and other applications—to support new protocols and file formats. We had made an initial, experimental version of Spicy available a little while ago....
ZPC-3 Winners Announced
We are thrilled to announce the winners of the third Zeek Package Contest, which was sponsored by Corelight. The contest was open to all Zeek packages compatible with Zeek 3.0 and above. Below is a list of the winners and links to the packages that were...
A Zeek OpenVPN Protocol Analyzer in Spicy
This blog will not repeat the basics of OpenVPN, but instead it will briefly walk through the Spicy version of the same protocol analyzer we built in Binpac. You will see that the Spicy version of the protocol analyzer will be much more intuitive and compact
Zeek in Action: Introduction and How to Set Up a Windows Workstation Using Brim Security
Welcome to Zeek in Action, a new series of videos for Zeek users and fans. The purpose of the series is to show how analysts can interpret data in Zeek and related formats to solve various networking challenges. The focus will mainly be on security use cases, but we...
A Zeek OpenVPN Protocol Analyzer
By Keith J. Jones, Corelight Sr. Security Researcher Introduction and Background Many modern VPN providers use the OpenVPN protocol in their clients and servers. Threat actors are also known to use OpenVPN. Zeek is unable to natively detect and parse the OpenVPN...
Package management updates in Zeek 4
Our latest Zeek release includes a number of improvements around zkg, Zeek’s package manager. They aim to make zkg more accessible and familiar to users of other package managers. In this blog post I’d like to walk you through these changes.
Zeek 4.0 LTS Release
(This is an updated version of an earlier posting announcing a 4.0 release candidate.) We are very excited to make Zeek 4.0 available. This is an LTS release with support for the coming year. Some highlights coming with this version: Plugin API support for adding...
Zeek Monthly Newsletter – Issue 8 – February 2021
Welcome to the first Zeek Newsletter of 2021! Issue 8 – February 2021. This issue contains Zeek 4.0 RC, Link to new Zeek Documentation, ZeekWeek 2021, upcoming events, Zeek related jobs and more.
Save the Date – ZeekWeek 2021 Hybrid Event
ZeekWeek 2021 (formerly BroCon) will be held 13-15 October at the AT&T Executive Education and Conference Center in Austin, Texas – provided it is safe to meet in person.
Just Released – New and Improved Zeek Documentation
The Zeek Project is thrilled to announce the release of new and substantially improved Zeek documentation, which we refer to as “The Book of Zeek.” This version includes content for Zeek 4.0, and numerous additional updates.
Zeek 4.0 Release Candidate
Update: The final 4.0.0 release is now available We are very excited to publish a release candidate of Zeek 4.0. today. We expect the final version to follow in early January, which will then become the new Zeek LTS release with support for the coming year. (To help...
Virtual ZeekWeek 2020: Summary, Slides and Video
Virtual ZeekWeek 2020: Summary, Slides and Video – The global community of Zeek users and developers gathered virtually last month, October 13-15, for the annual ZeekWeek (formerly BroCon) event.
ZeekWeek 2020 Capture the Flag Summary
As part of the most recent ZeekWeek event a capture the flag (CTF) competition was available for attendees to play. The competition included 12 challenges, of varying difficulties, which involved tasks surrounding Zeek scripting and traffic analysis. After a...
RSS - Posts