Thursday, July 25, 2024
HomeCyber CrimeNew Chaos and Nokoyawa Ransomware Variants Found

New Chaos and Nokoyawa Ransomware Variants Found


Developers of ransomware are always working to increase their malware’s effectiveness. Yashma and Nokoyawa, two new ransomware strains, have just been detected in the wild.

The Ransomware Yashma

BlackBerry researchers have discovered and detailed a new form of Chaos ransomware known as Yashma alias Chaos 4.0.

Two new features in Yashma are the ability to halt execution based on a victim’s location and the ability to stop separate operating processes tied to antivirus and backup software.

The Chaos ransomware function Object() { [native code] } was first discovered on underground forums in June 2021, and its sixth iteration was published less than a year later.

This edition, like all prior variants, is a file destroyer, according to researchers, with no intention of giving file recovery instructions or a decryption tool.


The Ransomware Nokoyawa

The new Nokoyawa ransomware is comparable to the Karma ransomware in terms of programming, and it is improving by recycling code from publicly available sources.

The majority of the new code was plagiarised from publicly available sources, such as the Babuk ransomware code that was disclosed in September 2021.

The ransom message and the method through which victims communicate with the perpetrators have both changed significantly in the current iterations. The victim must now contact the attackers via a TOR browser and a.onion URL.

Furthermore, there are additional capabilities that increase the quantity of files that this virus may encrypt.

Notes at the end

The creators of ransomware are continually attempting to improve their virus. The recent closure of the Conti ransomware does not appear to have deterred criminals from putting more effort into improving their malware. Software creators are becoming more comfortable with utilising publicly accessible code to quickly add new features to their malware. This is a significant problem for the cybersecurity sector, and it necessitates ongoing innovation and initiatives.

IEMLabs is an ISO 27001:2013 and ISO 9001:2015 certified company, we are also a proud member of EC Council, NASSCOM, Data Security Council of India (DSCI), Indian Chamber of Commerce (ICC), U.S. Chamber of Commerce, and Confederation of Indian Industry (CII). The company was established in 2016 with a vision in mind to provide Cyber Security to the digital world and make them Hack Proof. The question is why are we suddenly talking about Cyber Security and all this stuff? With the development of technology, more and more companies are shifting their business to Digital World which is resulting in the increase in Cyber Crimes.


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