Zararlı Yazılımların Karekterislik Analizi: Cryptowall Fidye Yazılım Analizi

Öz

CryptoWall’lar tasarımı, amaçları ve verdiği zararlar açısından Ransomware’lar içerisinde ilk sıralarda yer almaktadır. Siber suçlular ülkeler arası siber terörizmden sıradan bir internet kullanıcından fidye istemeye kadar geniş bir uygulama alanında CryptoWall’ları kullanmaktadır. Alınan tüm tedbirlere rağmen CryptoWall’ları ile etkin bir mücadele hala geliştirilememiştir. Bu durum siber suçluların iştahını kabartmakta ve her geçen gün yeni sürümler ile CryptoWall’lar güncellenerek piyasaya sürülmekte, çözülmesi daha zor bir problem haline gelmektedir. Mevcut araştırma çalışmaları CryptoWall’ların genel özellikleri ve sonuçlarını tarışmaktadır. CryptoWall’lar nasıl çalışır? CryptoWall tespiti ve teknik analizi nasıl yapılır? Bu soruların cevapları hakkında detaylı çalışmalar yapılması bu problemin çözümesine katkı sağlayacaktır. Bu çalışma, siber suçluların CryptoWall saldırısıyla hedef aldığı gerçek bir kurbanın bilgisayarında CryptoWall’un tespiti ve analizi detaylı incelemesi üzerinedir. Çalışma, CryptoWall saldırısının hedef sisteme nasıl sızdığını, karekteristik hareketlerinin analiz aşamalarının göstermesi ve CryptoWall zararlı yazılımının üretici firmasının tespit edilmesini içermesinden dolayı önemlidir.

Anahtar Kelimeler

• Siber Suçlar,Zararlı Yazılım Analizi,CryptoWalls

Characteristic Behavioral Analysis of Malware: A Case study of Cryptowall Ransomware

Öz

CryptoWalls ranks first among the Ransomware in terms of its design, objectives, and damages. Cybercriminals use CryptoWalls in a wide range of applications, from cross-country cyberterrorism to demanding ransom from an ordinary Internet user. Despite all the measures taken, an effective protection against CryptoWalls has still not been developed. This motivates cyber criminals, and new versions of updated CryptoWalls are released every day, becoming a more difficult problem to be solved. Current research studies discuss the general characteristics and consequences of CryptoWalls. How do CryptoWalls work? How the CryptoWall detection and technical analysis are done? Detailed studies on the answers to these questions will contribute to solving this problem. This study discusses detailed analysis of CryptoWall detection on a real victim's computer, targeted by the CryptoWall attack of cybercriminals. The study is of importance since it addresses how the CryptoWall attack infiltrates the target system, shows the analysis steps of its characteristic actions, and identifies the originating company of the CryptoWall malware.

Anahtar Kelimeler

• Cybercriminal,Malware Analysis,CryptoWalls

Kaynakça

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