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This bachelor thesis adresses the topic of malware, a malicious software on the internet. Theoretical part is divided into several chapters, describing malware, its risks and prevention. In the first chapter, reader learns the definition of malware, its distribution and the history until presence. Content of another chapter will include anticipation of development and impact on society. At the end of the teoretical part, risks and threats, prevention and protection will be described. Anti-malware programs will be also described. Part of the practical part is the analysis of the actual malware behaviour applied to the PC. It deals with the construction, functionality and lifecycle of malware. Goal of this bachelor thesis is to familiarize readers with the ambush that arise during carelessness and inadequate protection during the use of the internet. At the same time, reader will learn in the practical part about how malware works and how to proceed with its removal.

My bacherols thesis on the topic Analysis of the current condition of cybernetic criminality in EU focuses in its theoretical part on the definition of the term cybercrime. This term is very comprehensive, therefore the vast majority of the paper consists of the variety of forms of cybercrime. There are talking specificaly about attacks againts personal computers and software systems, attacks, that lead up to misuse of computers, datas and other information, breaking the copyright and last, but not least using the computers againts the law. An integral part of the thesis is the current legislation, investigation of a cyber offense and the defense againts cybercrime. And interesting chapter are the trends from the years 2010 to 2016, where I mention the most interesting real-life cases of cybercrime. The main aim of the practical part of the thesis is unification of recommendations and rules concerning the defense againts cybercrime based on my obtained information and experience.

This bachelor thesis deals the world malware and what this word means. The theoretical part describes the particular division of malware, its history and development from the 70s to the present. Other chapters include targets of hackers, why malware exists and what is the motivation of its authors. Conclusion of the theoretical part describes other threats which are on the Internet. The practical part includes two explorations. The first is dedicated to antivirus, it represents the most frequently used programs, their functionality and user interface. Test of infected file demonstrates the functionality and level of security. Final summary assists users in selecting the appropriate antivirus for their computer. The second is realized as a questionnaire which determines the awareness of the general public about the danger of malware and defence against it. The conclusion evaluate results of explorations of the practical part, it compares targets of this bachelor thesis and monitors their achievement or provides information about extension of explorations.

This bachelor thesis adresses present day topic of broad interest, the topic of malware. This term stands for malicous software as viruses, worms, trojans, spyware etc. Simply put a software with intent to do harm to the users of computers or mobile devices, to their steal information or gain access to their private computer systems. This thesis is divided into several chapters. First few of them are theoretical. First one describes malware in general. It defines what malware is and divides it into categories. Second chapter introduces a discipline of malware analysis. A discipline where malware, its components and behaviour is analysed in laboratory environment. This chapter contains general description of malware analysis, categories in which is this analysis divided, and rules of said analysis. Third chapter goes even further into malware analysis. It describes and identifies its indiviual techniques and tools. Last chapter is focused on practical usage of malware analysis. Theoretical knowledge of malware analysis, specifically knowledge of tools and techniques described in previous chapters is demonstrated on real, live example of malware. Thanks to demonstration of tools and techniques; funcionality, structure and life cycle of mentioned piece of malware is also being analyzed. Goal of this thesis is to bring reader closer to the topic of malware, with emphasis on area of malware analysis. This contains an explanation what an malware analysis is, what is its purpose. Next goal is to develop a summary of malware analysis basic tools and techniques. Thesis contribution is application of knowledge of techniques and tools on real malware analysis. With the help of malware analysis, this thesis demonstrates its individual tools and techniques on live example of malware. Other contributions are deriving from analysis itself. Funcionality, structure and life cycle of analysed piece of malware is also being explained.

This bachelor's thesis addresses the issue of a threat in the area of computers and internet networks, malware. It defines what malware is, its various types and the history in terms of occurrence and actions. It also provides the reader with insight into malware's functionality and how it threatens users. Furthermore, the thesis contains examples of some current well-known threats. A dossier on antivirus and antispyware software is also included. It is essentially a summary of their functions, properties, benchmark results and a list of countermeasures it equips the user with. The last section of the theoretical part of the thesis is a prediction of the future regarding the evolution of these threats and how will they affect the user. A considerable part of this work is a survey providing a summary of the current level of malware knowledge among people. I intend to determine if people are aware of these threats, their ability to defend themselves against them and also whether they already encountered this issue and if so, how did they handle it. This thesis should increase awareness about malware to make people understand what it is capable of in the environment of an unsecured computer. Ultimately, I am going to present the results of the survey and evaluate the depths of knowledge about malware among people.

This bachelor's thesis is focused on security of operating system iOS from Apple. The thesis is divided into six chapters. The first chapter describes iOS and Apple company. The second chapter deals with iOS security architecture in terms of security model and security mechanisms. The third chapter deals with the security of iOS applications and options of their testing. The fourth chapter describes software attacks against iOS in the form of malware and exploitation. The fifth chapter describes the system interferences and methods for their detection. The sixth chapter deals with comparison of iOS security and Android and Windows Phone platform security. In this chapter is introduced the security of competitive platforms in terms of security model, system security, application security and interferences. This comparison includes the table with evaluation of security. Objective of this thesis is to introduce ways of security in one of the most widely used mobile platform. Moreover the aim is to compare iOS security with security of two competitive platforms. The result is an analysis of iOS security and it's comparison with Android and Windows Phone security.

This bachelor thesis deals with the problem of malware, the problem is a viruses, worms, trojan horses and other computer "vermin". This is a topic that cannot be overlook and which, in today's society, that takes full advantage of internet capabilities, is important. At the beginning of the work is shown the evolution of malware from its beginning until today, together with the forecasted development for the future. There are also shown and described various known types of malware and segments that are most vulnerable malware. At the end of the first part of this work is told how to defend against malware, whether in the field of prevention, protection, or direct the removal of malware itself in case of "infected". In the second, already practically oriented part of the work is done comparing the selected products to protect against malware by me selected and defined criteria and their weights in order to select the best product. At the end of this part the survey is performed to determine what is the awareness about this issue among people. Then it is evaluated and its components will be further described and commented. The contribution of this bachelor thesis is to clarify the issue, describe appropriate protection against malware (along with selecting a suitable product) and determine the level of awareness of this issue among the people.