While banking trojans have been around for a very long time now, we have never seen a mobile malware family attack the applications of Belgian financial institutions. Until today... Earlier this week, the Italy-based Cleafy published an article about a new android malware family which they dubbed TeaBot. The sample we will take a look … Continue reading New mobile malware family now also targets Belgian financial apps
This blogpost will be a bit different, as it's going to tell a bit of a story... In this blogpost I want to achieve 2 objectives: address a question I keep hearing and seeing pop up in my DM every now and then, "how do I become a red teamer/ how do I become a … Continue reading I Solemnly Swear I Am Up To No Good. Introducing the Marauders Map
This blog post will cover the Cobalt Strike DLL stager's anatomy, design choices and highlight ways to reduce both log footprint and time-to-shellcode.
This blogpost explains all the steps I took while analyzing the Cabassous/FluBot malware. I wrote this while analyzing the sample and I've written down both successful and failed attempts at moving forward, as well as my thoughts/options along the way. As a result, this blogpost is not a writeup of the Cabassous/FluBot malware, but rather … Continue reading How to analyze mobile malware: a Cabassous/FluBot Case study
Many applications require the user to authenticate inside the application before they can access any content. Depending on the sensitivity of the information contained within, applications usually have two approaches: The user authenticates once, then stays authenticated until they manually log out;The user does not stay logged in for too long and has to re-authenticate … Continue reading A closer look at the security of React Native biometric libraries
This blog post is the last part of a series, if you are interested in the security or privacy of smart home devices, be sure to check out the other parts as well! TL;DR: In our previous blog posts we concluded that there is quite a long way to go for both security and privacy … Continue reading Smart Home Devices: assets or liabilities? – Part 3: Looking at the future
Ever needed a notifier when a new beacon checks in? Don't want to keep checking your Cobalt-Strike server every 5 minutes in the hopes of a new callback? We got you covered! Introducing the notification-service aggressor script available athttps://github.com/NVISOsecurity/blogposts/tree/master/cobalt-strike-notifier If the above image resonates with you, you'll know that the point between sending out your … Continue reading Tap tap… is this thing on? Creating a notification-service for Cobalt-Strike
For many years, industrial automation and control systems (IACS) relied on the fact that they were usually isolated in physically secured areas, running on proprietary hardware and software. When open technologies, standard operating systems and protocols started pushing their way into IACS replacing proprietary solutions, the former “security through obscurity” approach did no longer work. … Continue reading Securing IACS based on ISA/IEC 62443 – Part 1: The Big Picture
Cyber security has long since become a strategic priority for organizations across the globe and in all sectors. Therefore, training and hiring young potential in information security has become a crucial goal. To raise awareness of cyber security threats and help train a generation of security aware security experts, we at NVISO organize Capture the Flag (CTF) Cyber Security Events in two countries, Belgium and Germany and reach a broad audience. Each … Continue reading Cyber Security Contests – A look behind the scenes about how to expand the community
TL;DR - Part two of this trilogy of blog posts will tackle the next big topic when it comes to smart home devices: privacy. Are these devices doubling as the ultimate data collection tool, and are we unwittingly providing the manufacturers with all of our private data? Find out in this blog post! This blog … Continue reading Smart Home Devices: assets or liabilities? – Part 2: Privacy
