Crypto ransomware – a type of malware which encrypts its victim’s files and demands a ransom in exchange for decryption – is one of the most dangerous types of malware today. According to Kaspersky Lab telemetry, in 2016 more than 1,445,000 users (including businesses) around the globe were attacked by this type of malware. In order to better understand the nature of these attacks, Kaspersky Lab researchers conducted an overview of the Russian-speaking underground community. One of the major conclusions is that the increase in crypto ransomware attacks observed in recent years is the result of a very flexible and user-friendly underground ecosystem, allowing criminals to launch crypto ransomware attack campaigns with almost any level of computer skills and financial resources.
Kaspersky Lab researchers identified three levels of criminal involvement in the ransomware business:
- The creation and update of new ransomware families
- The development and support of affiliate programs distributing ransomware
- The participation in affiliate programs as a partner
The first type of involvement requires a participant to have advanced code-writing skills. The cybercriminals who create new ransomware strains are the most privileged members of the ransomware underground world, as they are the ones who create the key element of the whole ecosystem.
On the second level of the hierarchy, there are the developers of the affiliate programs. These are the criminal communities which – with the help of different additional tools, like exploit kits and malicious spam – deliver the ransomware issued by the malware creators.
The partners of affiliate programs are on the lowest level of the whole system. Utilising different techniques they help the owners of affiliate programs to distribute the malware in exchange for a share of the ransom received by owners of the program. Only intent, a readiness to conduct illegal actions, and couple of bitcoins are required for participants of affiliate programs to enter this business.
According to Kaspersky Lab estimations, the overall daily revenue of an affiliate program may reach tens or even hundreds of thousand dollars, of which around 60 per cent stays in the criminals’ pockets as net profit.
Moreover, during their research into the underground ecosystem and multiple incident response operations, Kaspersky Lab researchers were able to identify several large groups of Russian-speaking criminals specialising in crypto ransomware development and distribution. These groups may unite tens of different partners, each with their own affiliate program, and the list of their targets includes not only ordinary Internet users, but also small and medium-sized companies and even enterprises. Initially targeting Russian and CIS users and entities, these groups are now shifting their attention to companies located in other parts of the world.
“It is hard to say why so many ransomware families have a Russian-speaking origin, but what is more important is that we’re now observing their development from small groups with limited capabilities to large criminal enterprises that have resources and the intent to attack more than just Russian targets. We’ve seen something similar with financial malware groups, like Lurk. They also started with massive attacks on online banking users, and then evolved into sophisticated groups capable of robbing large organisations, like banks. Sun Tzu said: If you know the enemy and know yourself, you need not fear the result of a hundred battles. That’s why we’ve created this overview: ransomware gangs are turning into very powerful enemies, and for the public and the security community, it is really important we learn as much about them as possible,” says Anton Ivanov, security researcher at Kaspersky Lab, and the author of the overview.
Read more about how Russian-speaking underground ransomware ecosystem works on Securelist.co.uk