Open Source

If there’s one thing I love more than delivering great products, it’s delivering great food. The holidays are my time to channel my inner celebrity chef: I’ll burn a few cookies, over-spice a roast, and then miraculously pull it all together for a... Read more »

Malicious files continue to be a significant threat to organizations; SonicWall reported more than six billion malware attacks in 2023. To help organizations prepare for and stay ahead of these threats, we’re introducing an integration with YARA... Read more »

The Verizon 2024 Data Breach Investigations Report found that system intrusion is the leading attack pattern for the third consecutive year, accounting for 36% of breaches. System intrusion largely consists of a threat actor using hacking techniques... Read more »

Editor's note: This post was originally published on the Zeek.org blog on Nov. 28, 2022. Reposted here in full with permission as a courtesy. Read more »

Today marks the start of ZeekWeek, the annual conference for information technologists who rely on the Zeek® network for security monitoring. Read more »

This month, Microsoft announced a vulnerability in NFS. The exploit lies in how an attacker can force a victim NFS server to request an address from the attacker’s fake NFS server. The address returned will overflow memory on the victim NFS server... Read more »

Editor's note: This is the third in a series of Corelight blog posts focusing on evidence-based security strategy. Catch up on all of the posts here. American novelist F. Scott Fitzgerald famously wrote that “the test of a first-rate intelligence is... Read more »

One of the major causes of alert fatigue for SOCs is a class of alerts that fall in between false positives and useful detections: when an actual attack has been launched, and the detection is working correctly, but the host on the receiving end is... Read more »

As we finished rolling out Corelight’s v21 software release, which saw the delivery of the world’s first 100G, 1U Zeek sensor, I was reminded of when I’d first read the “100G Intrusion Detection” paper written in 2015 at Berkeley Lab. The paper... Read more »