CONTACT US
forrester wave report 2023

Forrester rates Corelight a strong performer

GET THE REPORT

ad-nav-crowdstrike

Corelight now powers CrowdStrike solutions and services

READ MORE

ad-images-nav_0013_IDS

Alerts, meet evidence.

LEARN MORE ABOUT OUR IDS SOLUTION

ad-images-nav_white-paper

5 Ways Corelight Data Helps Investigators Win

READ WHITE PAPER

glossary-icon

10 Considerations for Implementing an XDR Strategy

READ NOW

ad-images-nav_0006_Blog

Don't trust. Verify with evidence

READ BLOG

ad-nav-NDR-for-dummies

NDR for Dummies

GET THE WHITE PAPER

video

The Power of Open-Source Tools for Network Detection and Response

WATCH THE WEBCAST

ad-nav-ESG

The Evolving Role of NDR

DOWNLOAD THE REPORT

ad-images-nav_0006_Blog

Detecting 5 Current APTs without heavy lifting

READ BLOG

g2-medal-best-support-ndr-winter-2024

Network Detection and Response

SUPPORT OVERVIEW

 

Linux

Tracking down a glibc regression

We’d just upgraded our glibc package from 2.32 to 2.33, when we noticed some peculiar behavior. Glibc 2.32 had a number of minor security issues and needed to be patched or upgraded. Instead of back-porting the patches to 2.32 we decided to upgrade... Read more »

Detect C2 ‘RedXOR’ with state-based functionality

Recently a very interesting Linux-based command-and-control (C2) malware was described by the research team at Intezer. As usual there is a set of simple network-based IOCs in the form of domains and IPs that organizations can search against their... Read more »

Who’s your fridge talking to at night?

I love origin stories – the tales of grand plans, unforeseen circumstances, and necessity that creates something new. These strange times have resulted in something new from Corelight, and I’d like to share how it came to be. Read more »

Small, fast and easy. Pick any three.

Zeek has been the darling of security defenders looking to get deep visibility into network traffic. Over the last two decades, Zeek has become a household name – widely used by enterprise organizations, educational institutions and government... Read more »

Mixed VLAN tags and BPF syntax

This post contains a warning and a solution for anyone using BPF syntax when filtering traffic for network security monitoring. Read more »

Don’t delay – Corelight today!

Introduction Recently I heard that a company interested in Corelight was considering delaying their evaluation because of questions about SIEM technology. They currently have two SIEMs and are evaluating a third, possibly to replace the first two.... Read more »

Profiling Whonix

Introduction This week I read a story announcing that the latest edition of Whonix had been released. I had heard of Whonix, but had never tried it. I knew it was a Linux distribution that tried to make it as easy and safe as possible to anonymize... Read more »