0209, 2021

DeepSec 2021 Talk: Real-Time Deep Packet Inspection Intrusion Detection System for Software Defined 5G Networks – Dr. Razvan Bocu

Sanna/ September 2, 2021/ Conference

The world of the Internet of Things apparently becomes fundamental for the envisioned always connected human society. The 5G data networks are expected to dramatically improve the existing 4G networks’ real world importance, which makes them particularly necessary for the next generation networks of IoT devices. This talk reports the authors experience, which was acquired during the implementation of the Vodafone Romania 5G networked services. Consequently, this blogpost about our talk describes a machine learning-based real time intrusion detection system, which has been effectively tested in the context of a 5G data network. The system is based on the creation of software defined networks, and it uses artificial intelligence based models for the deep inspection of the transferred data packets. It is able to detect unknown intrusions through the usage of machine learning-based software

3108, 2021

DeepSec 2021 Talk: Web Cache Tunneling – Justin Ohneiser

Sanna/ August 31, 2021/ Conference

By using cache poisoning to store arbitrary data, we can use public web caches as open ephemeral storage to facilitate anonymous and evasive communication between network clients. We asked Justin a few more questions about his talk. Please tell us the top facts about your talk. Public web caches, when improperly configured, can be used as open ephemeral storage. Combined with a synchronization technique, this ephemeral storage can be used to tunnel arbitrary data between network clients. Tunneling data in this manner requires no listening service, as all endpoints behave as clients to the web cache server, allowing trivial use of anonymizing protocols. The conditions for this technique are present on several extremely popular websites, and the use of this technique by malware could make network detection nearly impossible. How did you come up

2708, 2021

DeepSec 2021 Talk: Those Among Us – The Insider Threat facing Organizations – Robert Sell

Sanna/ August 27, 2021/ Conference

Organizations spend a considerable amount of time and money protecting themselves from external threats while practically ignoring the significant threats from within. Cybercrime has an estimated cost of $2 trillion in 2019 with an average cost per data breach of $3.9 million. This global cost is expected to grow to $6 trillion annually by 2021. In 2018, 34% of those data breaches involved internal factors and this trend continues to grow. This hard on the outside but soft in the middle approach by Information Security departments leaves organizations susceptible to a variety of insider threats that could be avoided. In this talk, I will present the extent of the issue, the types of insider threats to expect and how organizations can mitigate these risks. We asked Robert a few more questions about his talk.

2608, 2021

DeepSec 2021 Talk: How to Choose your Best API Protection Tool? Comparison of AI Based API Protection Solutions – Vitaly Davidoff

Sanna/ August 26, 2021/ Conference

As the world becomes more and more connected, Application Security becomes an important concern. Especially regarding the Internet of Things (IoT), Application Programming Interface (API), and Microservices spaces. In addition, the proper access management needs to be seriously addressed to ensure company assets are securely distributed and deployed. There are many tools on the market providing AI based API protection and anomaly detection but what really works? How to choose the best solution? During my talk, I will share results from the research of reviewing different architecture approaches and AI solutions introduced by different favorite tools on the market, from WAF to workload protection systems. We asked Vitaly a few more questions about his talk. 1) Please tell us the top facts about your talk. This talk is a first try to dive deep

2508, 2021

DeepSec 2021 Talk: Hunting for LoLs (a ML Living of the Land Classifier) – Tiberiu Boros, Andrei Cotaie

Sanna/ August 25, 2021/ Conference

Living of the Land is not a brand-new concept. The knowledge and resources have been out there for several years now. Still, LoL is one of the preferred approaches when we are speaking about highly skilled attackers or security professionals. There are two main reasons for this: Experts tend not to reinvent the wheel Attackers like to keep a low profile/footprint (no random binaries/scripts on the disk) This talk focuses on detecting attacker activity/Living of the Land commands using Machine Learning, for both Linux and Windows systems. Most of the AV vendors do not treat the command itself (from a syntax and vocabulary perspective) as an attack vector. And most of the log-based alerts are static, have a limited specter and are hard to update. Furthermore, classic LoL detection mechanisms are noisy and somewhat

1811, 2020

ROOTs 2020: A survey on practical adversarial examples for malware classifiers – Daniel Park

Sanna/ November 18, 2020/ ROOTS

Machine learning based models have proven to be effective in a variety of problem spaces, especially in malware detection and classification. However, with the discovery of deep learning models’ vulnerability to adversarial perturbations, a new attack has been developed against these models. The first attacks based on adversarial example research focused on generating feature vectors, but more recent research shows it is possible to generate evasive malware samples. In this talk, I will discuss several attacks that have been developed against machine learning based malware classifiers that leverage adversarial perturbations to develop an adversarial malware example. Adversarial malware examples differ from adversarial examples in the natural image domain in that they must retain the original malicious program logic in addition to evading detection or classification. Adversarial machine learning has become increasingly popular and is

1811, 2020

ROOTs 2020: Exploiting Interfaces of Secure Encrypted Virtual Machines – Martin Radev

Sanna/ November 18, 2020/ ROOTS

Cloud computing is a convenient model for processing data remotely. However, users must trust their cloud provider with the confidentiality and integrity of the stored and processed data. To increase the protection of virtual machines, AMD introduced SEV, a hardware feature which aims to protect code and data in a virtual machine. This allows to store and process sensitive data in cloud environments without the need to trust the cloud provider or the underlying software. However, the virtual machine still depends on the hypervisor for performing certain activities, such as the emulation of special CPU instructions, or the emulation of devices. Yet, most code that runs in virtual machines was not written with an attacker model which considers the hypervisor as malicious. In this work, we introduce a new class of attacks in which

1811, 2020

DeepSec 2020 Talk: Old Pareto had a Chart: How to achieve 80% of Threat Modelling Benefits with 20% of the Efforts – Irene Michlin

Sanna/ November 18, 2020/ Conference

The earlier in the lifecycle you pay attention to security, the better are the outcomes. Threat modelling is one of the best techniques for improving the security of your software. It is a structured method for identifying weaknesses on design level. However, it is often perceived by the organisations as too expensive to introduce, or too slow to fit modern lifecycles, be it Agile, Lean, or DevOps. This talk will show how to fit threat modelling in fast-paced software development, without requiring every developer to become an expert. The outcomes should be immediately applicable, hopefully empowering you to try it at work the day after the conference. We asked Irene a few more questions about his talk. Please tell us the top 5 facts about your talk. Based on my experience introducing threat modeling

1311, 2020

DeepSec Keynote: DevSecBioLawOps and the current State of Information Security

René Pfeiffer/ November 13, 2020/ Conference

Technology is evolving. This is especially true for computer science and the related information technology branch. When everything is outdated after a couple of months, the wind of change turns into a storm. It also affects the way we work, processes which enable us to get work done, and changes perspectives how we see the world, code, and its applications. Dev, DevOps, and DevSecOps is a good example how these changes look like at the top of the iceberg. Subjectively information security is always a few steps behind the bleeding edge. The word „bleeding“ is a good indication of why this is the case. However, security professionals cannot turn back time and ignore the way the world works. New technology will always get pushed into all areas of our lives until its creators realise

0211, 2020

DeepSec 2020 Talk: TaintSpot: Practical Taint Analysis and Exploit Generation for Java – Dr. – Ing. Mohammadreza Ashouri

Sanna/ November 2, 2020/ Conference

“In this talk I will introduce a scalable and practical security analysis and automatic exploit generation approach, which is called TaintSpot. It works based on an optimized hybrid taint analysis technique that combines static and dynamic vulnerability analysis. TaintSpot generates concrete exploits based on concolic testing for programs written for the Java Virtual Machine (JVM) ecosystem.TaintSpot is specially designed for operating on large-scale proprietary executable binaries with multiple external dependencies. TaintSpot is under development system; for now, it targets JVM binaries, but I plan to extend it to android applications.” We asked Mohammadreza a few more questions about his talk. Please tell us the top 5 facts about your talk. Static and dynamic taint analysis have various advantages and disadvantages; I consider consolidating the best of these techniques to improve the effectiveness and scalability

3010, 2020

DeepSec2020 Talk: What’s Up Doc? – Self Learning Sandboxes to Defeat Modern Malwares Using RSA: Rapid Static Analysis – Shyam Sundar Ramaswami

Sanna/ October 30, 2020/ Conference

“Catch me if you can!” is the right phrase to describe today’s malware genre. Malwares have become more stealthy, deadly and authors have become more wiser too. What if sandboxes started performing rapid static analysis on malware files and passed on the metadata to spin a sandbox environment based on malware attributes and the malware does not evade? Well, the talk deals with about how to do RSA (Rapid Static Analysis, i coined it), pass on the attributes and how we defeat modern malwares by dynamically spinning sandboxes. RSA embedded in “H.E.L.E.N” and “Dummy” and how we extracted the real IOC from Ryuk forms the rest of the talk and story! The talk also covers how these key “attributes” that are extracted are used for ML, how we build bipartite graphs, build instruction based

2910, 2020

DeepSec 2020 Talk: “I Told You So!” – Musings About A Blameless Security Culture – Tim Berghoff, Hauke Gierow

Sanna/ October 29, 2020/ Conference

The concept of a blameless culture is familiar to agile software development teams the world over. Going blameless has lots of merits, yet in many organizations and management teams true blamelessness is far from being the norm. This is especially true for the security sector, where the thinking is perhaps even more linear than elsewhere in an organization. This way of thinking is not necessarily bad, but not always helpful. On the other hand, sugarcoating any shortcoming will not help things along either. In truth, the security industry is still facing a lot of work when it comes to dealing with people. This talk will address and explore some of the fundamental problems of corporate security culture and why it keeps companies from moving forward. We asked Tim and Hauke a few more questions

2810, 2020

DeepSec 2020 Talk: No IT Security Without Free Software – Max Mehl

Sanna/ October 28, 2020/ Conference

IT security is one of the most challenging global issues of recent years. But apart from the establishment of countless “cyber security” authorities, politics doesn’t seem to come up with something substantial. However, Free Software can be the solution to many pressing security problems. In this session, we will look at pros and cons and use concrete examples to illustrate why security and openness are not contradictory. For security professionals, the growing complexity of today’s digital world is no big surprise. But decision-makers are often overwhelmed by these new challenges and the uncertainties they entail. As a result, many fall for cheap selling arguments for black-boxed solutions and lose sight of a general strategy. We don’t know the exact security threats in five or ten years, but it is obvious that nobody can face

2710, 2020

DeepSec2020 Talk: Pivoting – As an Attack Weapon – Filipi Pires

Sanna/ October 27, 2020/ Conference

Demonstrating an exploit in a container environment (three dockers) across three different networks, I will demonstrate different pivot, vulnerability exploit, and privilege escalation techniques on all machines using Alpine linux, Gogs app, and other Linux platforms using Pentest methodologies such as recon, enumeration, exploitation, post exploitation. By the end of this presentation everyone will be able to see different ways that exist in working with a single form of pivot and how to overcome different obstacles in different networks within this “new” environment called Docker. We asked Filipi a few more questions about his talk. Please tell us the top 5 facts about your talk. During this presentation, we are looking at some important facts such as: Observability in different environment, vulnerability exploit, use of privilege escalation techniques, some misconfigurations or maybe no good

2310, 2020

DeepSec 2020 Talk: The Great Hotel Hack: Adventures In Attacking The Hospitality Industry – Etizaz Mohsin

Sanna/ October 23, 2020/ Conference

Have you ever wondered if your presence might be exposed to an unknown entity even when you are promised full security and discretion at a hotel? Well, it would be scary to know that the hospitality industry is a prime target nowadays for cyber threats as hotels offer many opportunities for hackers and other cybercriminals to target them and therefore resulting in data breaches. Not just important credit card details are a prime reason, but also an overload of guest data, including emails, passport details, home addresses and more. Marriot International where 500 million guests’ private information was compromised is one of the best examples. Besides data compromise, surgical strikes have been conducted by threat actors against targeting guests at luxury hotels in Asia and the United States. The advanced persistent threat campaign called

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