This month, Microsoft announced two vulnerabilities in portmap, which is part of ONC RPC, on Windows systems. This blog will discuss Zeek detection packages for CVE-2022-24491 and CVE-2022-24497 developed by Corelight Labs. Read more »

Editor’s note: This is the second in a series of posts we have planned over the next several weeks where we explore topics such as network monitoring in Kubernetes, using sidecars to sniff and tunnel traffic, show a real-world example of detecting... Read more »

Now available: A free and easy way to learn about Humio and Corelight. Read more »

Editor’s note: This is the first in a series of posts we have planned over the next several weeks. We will explore topics such as network monitoring in Kubernetes, using sidecars to sniff and tunnel traffic, show a real-world example of detecting... Read more »

What matters most in a criminal trial? Evidence. Everything depends on the quality and depth of facts deployed to build a case for innocence or guilt. Without compelling evidence, no jury can draw accurate conclusions. Here at Corelight, we are in a... Read more »

New VPN Insights package shines the light on a growing blindspot VPN tunnels are like shipping containers in that they are widely used (especially as the pandemic has moved more of the workforce to remote work), and they can be used to carry traffic... 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 »

The idea behind the SIEM (and now XDR!) technologies was to provide a single engine at the heart of the SOC, aggregating data, enabling analytics and powering workflow automation. The SIEM would act as one place to train analysts and integrate a... Read more »

Given that active cyber warfare has broken out alongside Russia’s active invasion of Ukraine - from Russian wiper malware to Anonymous hacking Russian state TV - CISA’s recent “Shields Up” memo is a timely insight into some of the TTPs defenders of... Read more »

The migration to cloud provides faster time to deployment and elasticity, but often at some cost and complexity to infrastructure control and visibility.  A concrete example we can use is a deployment of web servers with rational security group... Read more »