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Reconstruction of Captured Communication on iOS Platform
Letavay, Viliam ; Kmeť, Martin (referee) ; Pluskal, Jan (advisor)
These days our mobile devices along with social networks are giving us an opportunity to be in touch with our friends and family at any time. Howerver they could be also used for criminal activity. This thesis therefore deals with reconstruction of communication of the iOS applications Google Hangouts, Twitter and Facebook Messenger for use of forensics analysis with the main focus on an abillity to recover their chat communication. Later it also deals with the implementation of Netfox Detective tool extensions, allowing the reconstruction of this communication.
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Analysis and Detection of Multimedia Types in RTP Traffic
Kmeť, Martin ; Ryšavý, Ondřej (referee) ; Matoušek, Petr (advisor)
This thesis deals with the issues of detecting the codec used for the encoding of voice data carried by the RTP protocol without having access to the information carried by signalisation protocols in VoIP applications. Its main goal is to create and implement a fast algorithm for detecting the codec used for voice transfer via the RTP protocol. This algorithm should be fast enough to be used for offline analysis of captured data as well as for real-time online analysis. For research of possibilities were compared two approaches of detection. Detection by the characteristics of the codecs was chosen to solve the problem itself. Within the solution was performed data analysis and implementation of the application followed by testing on data.
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Social Networks Reconstruction of Captured Communication
Dudek, Jindřich ; Kmeť, Martin (referee) ; Pluskal, Jan (advisor)
We live in a modern world surrouded by many forms of information technology. Majority of communication among people is realized through the internet and usage of social networks is everyday matter which leads to reduction of personal communincation and to higher usage of dating sites. However these sites are often a place where potentinal deliquents occure. This thesis deals with reconstruction of captured communication from social networks Lidé.cz and Xchat. Man-in-the-middle attack was used to capture data needed for analysis of communication protocols. Bachelor thesis focuses on identification of communication methods of social networks mentioned above and on analysis of their communication protocols. From these communication protocols are chosen events interesting for forensic analysis. Result of this thesis is an extension which provides support of the communication protocols for application Netfox Detective.
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Facebook Social Network Datamining and Reconstruction of Captured Communication
Bruckner, Tomáš ; Kmeť, Martin (referee) ; Pluskal, Jan (advisor)
This thesis deals with social network Facebook from perspective of computer forensic science with focus on obtaining sensitive information about tracked users. Its main goal is implementation of the tools for reconstruction of captured communication and Facebook data mining. Core of this application has been implemented in framework for processing of captured communication Netfox.Framework, which is being developed by Faculty of Information Technology, Brno University of Technology. Man-in-the-Middle attack has been used for capturing of decipherable communication. Selenium WebDriver has been used as a tool for data mining. Developed solution is able to reconstruct Facebook conversations between users, addition of new statuses and comments, and interception of sent files. Data mining module is able to obtain public information about tracked users, especially places they recently visited, past and upcoming events, public user details, albums and photos, friendlists and mutual friends with other users. As part of the bachelor thesis, data analysis, implementation of the application, validity testing and benchmark analysis have been performed.
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A Tool for Tracking RTP Streams
Kmeť, Martin ; Matoušek, Petr (referee) ; Skokanová, Jana (advisor)
This document describes the development of the algorithm and test application for detection of RTP streams in computer networks. One of the results will be a tool in Python language recognising RTP streams in data filtered from network interface in real time or from the data in pcap format.
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Security Analysis of Smart Home Devices
Grofčík, Peter ; Kmeť, Martin (referee) ; Matoušek, Petr (advisor)
Main purpose of my bachelor thesis is to analyze security of smart home devices and afterwards to test and confirm exposed vulnerabilities on these devices. The first section describes MioSMART kit devices used for analysis including ways, how to access them. The next section describes communication of smart home devices including protocols, that are used for it. In the next chapter, free tools are introduced to identify vulnerabilities in IoT communications. The next section contains description of network attacks that were carried, based on detected vulnerabilities to damage the functionality of smart home devices. Part of this chapter is dedicated to the description of monitoring options for ongoing attacks on smart home devices.
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Reconstruction of Captured Traffic from Communication Tools
Ambrož, Tomáš ; Matoušek, Petr (referee) ; Kmeť, Martin (advisor)
Text and voice communications increase more and more now and sending of multimedia datas with the help of communication applications. There is a need of security services of our state this communication to monitor and analyse for purpose detecting of offence and following use of gained informations from communication in the action in court. Therefore, in my Bachelor's thesis I attempted to analyse and reconstruct of intercepted communication of two very popular communication applications, Viber and WhatsApp. Following extension for application Netfox Framework, which is determinated just for reconstruction of intercepted communication of various communication reports, was implemented on based of my informations about communication reports.
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Automatic Transport Protocol Detection in Captured Communication
Lazárek, Zbyněk ; Kmeť, Martin (referee) ; Pluskal, Jan (advisor)
The aim of this bachelor thesis is to create a library in C#, which will be able to automatically detect transport protocols in a captured network traffic. This library can recognize a transport protocol in tunnel traffic without the knowledge of tunneling protocol. The~thesis describes the unique signatures of TCP / IP protocols on which the automatic detection is based. Furthermore, it is described how the detection works. The conclusion is~subjected to automatic detection tests, which are designed to review its performance and efficiency.
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Security Analysis of Smart Home Devices
Grofčík, Peter ; Kmeť, Martin (referee) ; Matoušek, Petr (advisor)
Main purpose of my bachelor thesis is to analyze security of smart home devices and afterwards to test and confirm exposed vulnerabilities on these devices. The first section describes MioSMART kit devices used for analysis including ways, how to access them. The next section describes communication of smart home devices including protocols, that are used for it. In the next chapter, free tools are introduced to identify vulnerabilities in IoT communications. The next section contains description of network attacks that were carried, based on detected vulnerabilities to damage the functionality of smart home devices. Part of this chapter is dedicated to the description of monitoring options for ongoing attacks on smart home devices.
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Reconstruction of Captured Traffic from Communication Tools
Ambrož, Tomáš ; Matoušek, Petr (referee) ; Kmeť, Martin (advisor)
Text and voice communications increase more and more now and sending of multimedia datas with the help of communication applications. There is a need of security services of our state this communication to monitor and analyse for purpose detecting of offence and following use of gained informations from communication in the action in court. Therefore, in my Bachelor's thesis I attempted to analyse and reconstruct of intercepted communication of two very popular communication applications, Viber and WhatsApp. Following extension for application Netfox Framework, which is determinated just for reconstruction of intercepted communication of various communication reports, was implemented on based of my informations about communication reports.
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