Corelight Bright Ideas Blog

Zeek

World’s first 100G Zeek sensor

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 »

Introducing RDP Inferences

Corelight recently released a new package, focused on RDP inferences, as part of our Encrypted Traffic Collection. This package runs on Corelight Sensors and provides network traffic analysis (NTA) inferences on live RDP traffic.  Read more »

C2 detections, RDP insights and NDR at 100G

Today I am excited to announce Corelight’s v21 release, which delivers dozens of powerful C2 detections, extends analyst visibility around RDP connections, and helps organizations scale network detection and response workloads in high throughput... Read more »

Introducing the C2 Collection and RDP inferences

We’re excited to announce that the Command and Control (C2) Collection is now available with today’s launch of version 21 of the Corelight software. One of the most important ways that defenders can quickly identify and contain a security incident... Read more »

Pingback: ICMP Tunneling Malware

Recently, Trustwave reported on a new malware family which they discovered during a breach investigation. The backdoor, dubbed Pingback, executes on Windows systems and communicates with its controller via ICMP messages. ICMP (Internet Control... Read more »

CrowdStrike + Corelight partner to reach new heights

Through our newly announced partnership with CrowdStrike, Corelight customers will be able to incorporate CrowdStrike’s best-in-class threat intelligence into Corelight Sensors to generate actionable alerts and network evidence. In addition, by... 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 »

Extending NDR visibility in AWS IaaS

Comprehensive visibility is challenging in a cloud environment. While these environments are rich sources of telemetry and logs, it is challenging for security teams to ensure that logging is configured (and stays configured) on every service, to... Read more »

Getting the most out of your NIDS

Network Intrusion Detection Systems (NIDS) are widely deployed by the most sophisticated blue teams in the world. For well-funded organizations, there is little question about the value of NIDS, but adoption is not uniform across the entire... Read more »

Detecting SUNBURST/Solarigate activity in retrospect with Zeek

The threat actors who created SUNBURST went to extraordinary lengths to hide Command-and-Control (C2) traffic by mimicking the nature of communication patterns used by legitimate software within the SolarWinds package. Read more »

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