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Alerts, meet evidence.

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Thinking like a Threat Actor: Hunting the Ghost in the Machine

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The Evolving Role of NDR

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Detecting 5 Current APTs without heavy lifting

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Archives for May 2022

Detecting CVE-2022-23270 in PPTP

This month, Microsoft announced a vulnerability in PPTP, a part of the VPN remote access services on Windows systems that runs on port 1723/tcp. Through Microsoft’s MAPP program, Corelight Labs reviewed a proof of concept exploit for this... Read more »

Detecting CVE-2022-26937 with Zeek

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 »

Corelight Investigator accelerates threat hunting

This morning we announced Corelight Investigator, an open NDR platform that enables security teams with the next-level evidence they need to disrupt attacks and accelerate threat hunting through an easy-to-use, quick-to-deploy SaaS solution.  Read more »

Finding CVE-2022-22954 with Zeek

CISA released a warning to federal agencies on May 18 that APT actors are actively exploiting recent vulnerabilities found in VMware, including CVE-2022-22954. Your first thought may have been to want new signatures, indicators, and/or behavioral... Read more »

What makes evidence uniquely valuable?

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... Read more »

Another day, another DCE/RPC RCE

CVE-2022-26809 was patched in Microsoft’s previous Patch Tuesday (April 12) and it’s a doozy: remote code execution on affected versions of DCE/RPC hosts. The vulnerability attracted a lot of attention in the security community, both because of its... Read more »

Monitoring AWS networks at scale

Corelight is pleased to announce our integration with AWS’s Traffic Mirroring to Gateway Load Balancer (GWLB) Endpoint as a Target. This integration simplifies the monitoring of network traffic and generating Corelight data in massively scaled-out... Read more »

Spotting Log4j traffic in Kubernetes environments

Editor’s note: This is the latest 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 »

Network evidence for defensible disclosure

Editor's note: This is the second in a series of Corelight blog posts focusing on evidence-based security strategy. Catch up on all of the posts here. Read more »

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