SANS Institute

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A Year After Mirai: Insecure Devices are still a Huge Problem

In-brief: A year after Mirai, as many as 100,000 devices, globally, may be running some version of the Mirai malware, while countless others are vulnerable to being enlisted in a Mirai-like attack. Worse: these systems may not be patched for “years,” according to the SANS Internet Storm Center. 

A Right to Repair the Internet of Things? Spear Phishing Detection and Nonstop Attacks on DVRs

In-brief: In the latest Security Ledger podcast we talk about pending right to repair laws and their impact on the Internet of Things. Also:  Facebook’s Internet Defense Prize went to a better method for spear phishing detection. We talk to a member of the winning team. And, Johannes Ullrich of The Internet Storm Center joins us to talk about a study he did to measure the frequency of attacks on a common IoT device: digital video recorders.

You’re Invited: A Conversation on Password Security and Targeted Attacks

A note to Security Ledger readers that I’ll be facilitating a really interesting conversation this afternoon on password (in)security and how weak user authentication can undermine even the best laid security plans. The SANS Webinar, Security for the People: End User Authentication Security on the Internet” kicks off at 3:00 PM Eastern today (12:00 PM Pacific). You can register to join us using this link.   My guest is DUO Security researcher Mark Stanislav, a frequent Security Ledger contributor and one of the smartest guys out there when it comes to passwords, authentication and securing the Internet of Things. There’s plenty to talk about: weak authentication schemes are the root cause of any number of prominent breaches – from the recent attacks the Apple iCloud accounts of A-list celebrities, to the breach at retailer Target (reportedly the result of a phishing attack on an HVAC contractor that Target used.) Mark and I […]

Report: Symantec on Threats to Virtual Environments

The folks over at SANS Internet Storm Center are pointing to a new study by Symantec that warns of threats posed by malicious code to virtual environments and warns that threats such as that the network traffic within virtual containers may not be monitored by services such as IDS or DLP. The paper covers how malware behaves in virtual environments. Specifically, the report examines W32.Crisis, a malicious program that is known to target virtual environments. The Crisis malware doesn’t exploit any specific vulnerability, SANS notes. Rather: it takes advantage of how the virtual machines are stored in the host system to manipulate that environment for malicious purposes while escaping detection. via InfoSec Handlers Diary Blog – Threats to virtual environments.

Podcast: Is Defense-In-Depth The Only Real Heartbleed Fix?

Like everyone else, we wrote extensively in the last month about the serious security vulnerability in OpenSSL dubbed “Heartbleed,” which affected many of the world’s leading web sites and services, including Facebook and Google. The large-type headlines about Heartbleed have passed. But that doesn’t mean that the danger has. As we have noted,  we are entering a phase that might be considered Heartbleed’s ‘long tail.’ Most of the well-trafficked websites that were vulnerable to Heartbleed have gotten around to fixing the vulnerability. But public-facing web servers are only the beginning of the story for OpenSSL. Chasing down the vulnerability’s long tail in third-party applications and on internal web sites and applications is a much larger task. As I’ve noted: open source components make their way into all manner of applications and bespoke products these days, often without any effort to assess the security of the borrowed code. For companies that need to protect critical IT […]