FloCon 2018 has ended
Tucson, AZ – January 8-11, 2018


Watch this space for details on the technical program for FloCon 2018. In the meantime, see the FloCon website at www.cert.org/flocon.
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Thursday, January 11 • 9:30am - 10:00am
EternalBlue and You: Detecting & Trending SMB Vulnerabilities and Exploitation Activity

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The Server Message Block (SMB) protocol had a big year in 2017. While a fairly ubiquitous networking protocol with a long history of vulnerabilities and best-practice guidance, it came to the forefront of headlines when the Shadow Brokers group released ExternalBlue, an exploit that takes advantage of a vulnerability in Microsoft’s SMBv1 server implementation. EternalBlue gained notoriety during the record-breaking WannaCry ransomware attack and later its use in the Petya/NotPetya ransomware attacks. Are we vulnerable to such attacks? Are we being targeted and do we have any current infections? What can we do to ensure our infrastructure is protected from these threats? These are all questions that immediately come to mind for IT managers and network defenders. The NCCIC/US-CERT Technical Analysis Branch leveraged the National Cybersecurity Protection System (NCPS), better known as EINSTEIN, to answer these questions for U.S. Federal Government entities.

This presentation will begin with an overview of EternalBlue and the prominent campaigns in which it was used. Next we will present the analysis methodology that we employed, leveraging netflow to profile SMB traffic and identify potentially vulnerable SMB servers. We will also discuss content-based network traffic analysis and how we detected and trended this threat activity. Finally, we will discuss ways to protect yourself from future SMB exploits and lessons-learned.

avatar for Kevin Breeden

Kevin Breeden

Network Security Analyst, Northrop Grumman
Kevin Breeden is a network security analyst currently supporting the United States Computer Emergency Readiness Team (US-CERT) Network Analysis branch. Kevin's primary responsibilities are network traffic analysis through various proactive and reactive analysis techniques centered... Read More →

Thursday January 11, 2018 9:30am - 10:00am MST
Presidio III, IV, V

Attendees (4)