196 citations · 692 across the 51 of their papers we have counts for
43 papers · 1 filter
A Revised Taxonomy of Steganography Embedding Patterns
Steffen Wendzel, Luca Caviglione, Wojciech Mazurczyk +8
Steganography embraces several hiding techniques which spawn across multiple domains. However, the related terminology is not unified among the different domains, such as digital m…
Countering Adaptive Network Covert Communication with Dynamic Wardens
Wojciech Mazurczyk, Steffen Wendzel, Mehdi Chourib +1
Network covert channels are hidden communication channels in computer networks. They influence several factors of the cybersecurity economy. For instance, by improving the stealthi…
The New Threats of Information Hiding: the Road Ahead
K. Cabaj, L. Caviglione, W. Mazurczyk +3
Compared to cryptography, steganography is a less discussed domain. However, there is a recent trend of exploiting various information hiding techniques to empower malware, for ins…
Software-Defined Networking-based Crypto Ransomware Detection Using HTTP Traffic Characteristics
Krzysztof Cabaj, Marcin Gregorczyk, Wojciech Mazurczyk
Ransomware is currently the key threat for individual as well as corporate Internet users. Especially dangerous is crypto ransomware that encrypts important user data and it is onl…
YouSkyde: Information Hiding for Skype Video Traffic
Wojciech Mazurczyk, Maciej Karas, Krzysztof Szczypiorski +1
In this paper a new information hiding method for Skype videoconference calls - YouSkyde - is introduced. A Skype traffic analysis revealed that introducing intentional losses into…
Using Software-Defined Networking for Ransomware Mitigation: the Case of CryptoWall
Krzysztof Cabaj, Wojciech Mazurczyk
Currently, different forms of ransomware are increasingly threatening Internet users. Modern ransomware encrypts important user data and it is only possible to recover it once a ra…
Unified Description for Network Information Hiding Methods
Steffen Wendzel, Wojciech Mazurczyk, Sebastian Zander
Until now hiding methods in network steganography have been described in arbitrary ways, making them difficult to compare. For instance, some publications describe classical channe…
Towards a Systematic View on Cybersecurity Ecology
Wojciech Mazurczyk, Szymon Drobniak, Sean Moore
Current network security systems are progressively showing their limitations. One credible estimate is that only about 45% of new threats are detected. Therefore it is vital to fin…
Information Hiding as a Challenge for Malware Detection
Wojciech Mazurczyk, Luca Caviglione
Information hiding techniques are increasingly utilized by the current malware to hide its existence and communication attempts. In this paper we highlight this new trend by review…
Understanding Information Hiding in iOS
Luca Caviglione, Wojciech Mazurczyk
The Apple operating system (iOS) has so far proved resistant to information-hiding techniques, which help attackers covertly communicate. However, Siri - a native iOS service that…
Security - a perpetual war: lessons from nature
Wojciech Mazurczyk, Elżbieta Rzeszutko
For ages people have sought inspiration in nature. Biomimicry has been the propelling power of such inventions, like Velcro tape or "cat's eyes" - retroreflective road marking. At…
Insights from Nature for Cybersecurity
Elzbieta Rzeszutko, Wojciech Mazurczyk
The alarming rise in the quantity of malware in the last few years poses a serious challenge to the security community and requires urgent response. However, current countermeasure…
Hidden and Uncontrolled - On the Emergence of Network Steganographic Threats
Steffen Wendzel, Wojciech Mazurczyk, Luca Caviglione +1
Network steganography is the art of hiding secret information within innocent network transmissions. Recent findings indicate that novel malware is increasingly using network stega…
Improving Hard Disk Contention-based Covert Channel in Cloud Computing Environment
Bartosz Lipinski, Wojciech Mazurczyk, Krzysztof Szczypiorski
Steganographic methods allow the covert exchange of secret data between parties aware of the procedure. The cloud computing environment is a new and hot target for steganographers,…
SkyDe: a Skype-based Steganographic Method
Wojciech Mazurczyk, Maciej Karas, Krzysztof Szczypiorski
This paper introduces SkyDe (Skype Hide), a new steganographic method that utilizes Skype encrypted packets with silence to provide the means for clandestine communication. It is p…
Steganalysis of Transcoding Steganography
Artur Janicki, Wojciech Mazurczyk, Krzysztof Szczypiorski
TranSteg (Trancoding Steganography) is a fairly new IP telephony steganographic method that functions by compressing overt (voice) data to make space for the steganogram by means o…
Towards Steganography Detection Through Network Traffic Visualisation
Wojciech Mazurczyk, Krzysztof Szczypiorski, Bartosz Jankowski
The paper presents initial step toward new network anomaly detection method that is based on traffic visualisation. The key design principle of the proposed approach is the lack of…
Principles and Overview of Network Steganography
Jozef Lubacz, Wojciech Mazurczyk, Krzysztof Szczypiorski
The paper presents basic principles of network steganography, which is a comparatively new research subject in the area of information hiding, followed by a concise overview and cl…
VoIP Steganography and Its Detection - A Survey
Wojciech Mazurczyk
Steganography is an ancient art that encompasses various techniques of information hiding, the aim of which is to secret information into a carrier message. Steganographic methods…
Influence of Speech Codecs Selection on Transcoding Steganography
Artur Janicki, Wojciech Mazurczyk, Krzysztof Szczypiorski
The typical approach to steganography is to compress the covert data in order to limit its size, which is reasonable in the context of a limited steganographic bandwidth. TranSteg…
Using Transcoding for Hidden Communication in IP Telephony
Wojciech Mazurczyk, Pawel Szaga, Krzysztof Szczypiorski
The paper presents a new steganographic method for IP telephony called TranSteg (Transcoding Steganography). Typically, in steganographic communication it is advised for covert dat…
Is Cloud Computing Steganography-proof?
Wojciech Mazurczyk, Krzysztof Szczypiorski
The paper focuses on characterisation of information hiding possibilities in Cloud Computing. After general introduction to cloud computing and its security we move to brief descri…
Lost Audio Packets Steganography: The First Practical Evaluation
Wojciech Mazurczyk
This paper presents first experimental results for an IP telephony-based steganographic method called LACK (Lost Audio PaCKets steganography). This method utilizes the fact that in…
How Hidden Can Be Even More Hidden?
Wojciech Fraczek, Wojciech Mazurczyk, Krzysztof Szczypiorski
The paper presents Deep Hiding Techniques (DHTs) that define general techniques that can be applied to every network steganography method to improve its undetectability and make st…