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National Repository of Grey Literature 12 records found  previous11 - 12  jump to record: Search took 0.00 seconds. 
Extension of Behavioral Analysis of Network Traffic Focusing on Attack Detection
 Teknős, Martin ; Zbořil, František (referee) ; Homoliak, Ivan (advisor)
This thesis is focused on network behavior analysis (NBA) designed to detect network attacks. The goal of the thesis is to increase detection accuracy of obfuscated network attacks. Methods and techniques used to detect network attacks and network traffic classification were presented first. Intrusion detection systems (IDS) in terms of their functionality and possible attacks on them are described next. This work also describes principles of selected attacks against IDS. Further, obfuscation methods which can be used to overcome NBA are suggested. The tool for automatic exploitation, attack obfuscation and collection of this network communication was designed and implemented. This tool was used for execution of network attacks. A dataset for experiments was obtained from collected network communications. Finally, achieved results emphasized requirement of training NBA models by obfuscated malicious network traffic.
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Reverse engineering of platforms Java and Android
 Žák, Josef ; Pecinovský, Rudolf (advisor) ; Oraný, Vladimír (referee)
This thesis deals with reverse engineering of Android and Java. It contains a description of existing tools and techniques, including techniques of defense. The first part is focused on available research about the topic. The next part discusses usage of reverse engineering in software development. The next chapters describe Android operating system and concept of a virtual machine on both platforms. Both kinds of architectures are compared (register-based vs stack-based machine). Core of the work is focused on static analysis (content of APK file, disassembling, decompilation). Available decompilers of class and dex files are compared. Testing is made with various versions of Java. The final chapter contains techniques and tools of defense against reverse engineering including a description of pros and cons. Two popular obfuscators are tested (Proguard, DashO).
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National Repository of Grey Literature : 12 records found   previous11 - 12  jump to record:
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