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By Yohai Einav, Hongliang Liu Background It's been 18 months since Mirai entered our lives, and, unfortunately, we expect it to have a perennial presence in our cyber-world for years to come. If we look at the big picture, all indicators suggest that the Mirai problem (and its descendants) is just going to increase, with the growing number of IoT devices in the world and the improvement in IoT hardware
By Yohai Einav, Amir Asiaee, Ali Fakiri-Tabrizi and Alexey Sarychev Originally Posted on January 4, 2018 Earlier this month we took our show on the road, presenting some of our team's work at the Botconf conference in beautiful Montpellier, France. We could talk here for hours about the food, wine, culture, etc., but it would probably be more plausible for our readers to learn about the current developments in the
By Hongliang Liu and Yuriy Yuzifovich Originally posted on December 29, 2017 Today's post is all about DGA's (Domain Generation Algorithms): what they are, why they came into existence, what are some use cases where they are used, and, most importantly - how to detect and block them. As we will demonstrate here, the most effective defense against DGAs is a combination of traditional methods with modern machine intelligence.
HTTP2 is the second major version of the HTTP protocol. It changes the way HTTP is transferred "on the wire" by introducing a full binary protocol, made up of TCP connections, streams and frames, rather than simply being a plain-text protocol. Such a fundamental change between HTTP/1.x to HTTP/2, meant that client side and server side implementations had to incorporate completely new code to support new HTTP2 features - this
We see a lot of DNS amplification attacks, so we're rarely impressed by them. Today was different.
Today a new phishing attack began making the rounds in email boxes around the world, taking the form of an email with a link to a Google Doc that the sender has shared with the recipient. The email looks innocent enough, as shown in the image below - I myself received one shortly after the attack was launched - and many people likely clicked the link out of curiosity to
Summary On Monday, February 27, 2017, security researcher Omer Gil published a blog post laying out a data exfiltration method called a "Web Cache Deception Attack." The attack leverages web caching functionality to potentially expose sensitive information or allow for account takeover (ATO) attacks. Caching is often used to reduce load and time-to-delivery for a web server receiving requests for content, but this attack shows ways in which, given certain