The paper presents the analysis of the CryptoWall ransomware network behaviour. In this approach a HoneyPot technology as well as the automatic run-time malware analytical system called Maltester were used. We present the practical results of the analyses, technologies and tools used, and the gained experience with dynamic analysis of ransomware software in a dedicated environment. Most of the data was collected with the use of the HoneyPot infrastructure created and deployed in the network of the Institute of Computer Science WUT.Streszczenie. Praca przedstawia analizę zachowania sieciowego złośliwego oprogramowania CryptoWall typu ransomware. W badaniach wykorzystano technologię HoneyPot oraz system automatycznej analizy działania złośliwego oprogramowania w czasie jego wykonywania o nazwie Maltester. Zaprezentowano zarówno uzyskane wyniki analiz, wykorzystane technologie i narzędzia jak i doświadczenia zebrane podczas analizy oprogramowania typu ransomware w autorskim środowisku analitycznym. Większość danych zebrana została z wykorzystaniem infrastruktury HoneyPot stworzonej i wdrożonej w sieci Instytutu Informatyki Politechniki Warszawskiej. (Dynamiczna analiza aktywności sieciowej oprogramowania CryptoWall typu ransomware).
Abstract-Malware evaluation is a key factor in security. It supposed to be safe and accurate. The contemporary malware is very sophisticated. Usually it uses complex distributed infrastructure an investigation of which is a very challenging task. In the paper, the development of the testbeds toward malware and its infrastructure evaluation is presented. Based on the real-life experience with the subsequent CryptoWall generations analysis, the MESS evaluation system is introduced. A rich set of analytical results is discussed. A new methods of visualization for malware artefacts analysis are given.
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