Security | Threat Detection | Cyberattacks | DevSecOps | Compliance

How metadata wrestled control of FINRA's colossal data archiving requirements

The financial industry is known for its rigorous and sometimes quirky data retention requirements that can challenge even the most seasoned security expert. For example, FINRA Rule 4511 requires members to "preserve for a period of at least six years those FINRA books and records for which there is no specified period under the FINRA rules or applicable Exchange Act rules." Keeping six years of records: That's no small feat. But it's certainly doable.

For Science! - Threat hunting with SCinet at SC24

In November 2024, I participated in SCinet with the Network Security team at SC24. My job was supporting Corelight sensors and threat hunting using the data the sensors produced. This engagement allowed for a very constructive comparison between the networking challenges at SC and Black Hat USA, where I had the honor of working in the Network Operations Center (NOC) a few months earlier. At SC, I felt immersed in the cutting-edge world of research computing with people showcasing the fastest everything.

Running DeepSeek AI privately using open-source software

Zeek is a powerful open-source network analysis tool that allows users to monitor traffic and detect malicious activities. Users can write packages to detect cybersecurity events, like this GitHub repo that detects C2 from AgentTesla (a well-known malware family). Automating summarization and documentation using AI is often helpful when analyzing Zeek packages.

Corelight delivers data aggregation to reduce SIEM ingest by 50-80% compared to legacy network security monitoring tools

According to Forrester Research, “How do we reduce our SIEM ingest costs?” is one of the top inquiries they receive from clients. Many security organizations rely on SIEMs for their detection, investigation, and response workflows, ingesting critical security information and events to detect and respond to threats.

Understand and detect MITRE Caldera with Zeek

MITRE’s Caldera is a cybersecurity platform developed to simulate adversarial tactics, techniques, and procedures (TTPs). Built upon the MITRE ATT&CK framework, Caldera is an open-source tool designed to help cybersecurity professionals and organizations assess their defenses, uncover vulnerabilities, and enhance their overall security posture. By emulating real-world cyber threats, Caldera enables blue teams to test detection and response mechanisms under realistic conditions.

Adventures in monitoring a hostile network: Black Hat Europe 2024

Working in the network operating center (NOC) at Black Hat Europe, we’re never quite sure what we’re going to see. The anxiousness I feel there is similar to what I’d experience when I was blue-teaming for a corporate network. I could prepare all I wanted, read all the blogs about the current threat trends people and companies were tracking on the Internet, and review all the red team and vulnerability scanner reports to identify likely targets.

Cooking up a year of faster, smarter, and tastier security

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 meal that leaves everyone asking for seconds (or at least not asking for the takeout menu).

Corelight delivers static file analysis with YARA integration

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 that offers a deeper level of inspection for files across enterprise networks while helping security teams consolidate their toolset in the process.

How YARA rules can complement NDR for malware detection

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 and malware to infiltrate the victim organization. Following a successful intrusion, the attacker continues on a multi-stage process: The longer an attacker remains undetected, the greater their opportunity to find a target and extract data.