ALPHV/BlackCat ransomware gang starts publishing victims’ data on the clear web

ALPHV/BlackCat ransomware group began publishing victims’ data on the clear web to increase the pressure on them and force them to pay the ransom.

ALPHV/BlackCat ransomware group has adopted a new strategy to force victims into paying the ransom, the gang began publishing victims’ data on the clear web to increase the pressure. Publishing data online will make data indexable by search engines, increasing the potential impact on the victims due to the public availability of the stolen data.

The ALPHA/BlackCat gang has been active since at least December 2021 when malware researchers from Recorded Future and MalwareHunterTeam discovered their operation. The ALPHA/BlackCat is the first professional ransomware strain that was written in the Rust programming language.

BlackCat can target Windows, Linux, and VMWare ESXi systems, but at this time the number of victims is limited. The popular malware researcher Michael Gillespie said that the BlackCat ransomware is “very sophisticated.

Recorded Future experts speculate that the author of the BlackCat ransomware, known as ALPHV, was previously involved with the REvil ransomware operations.

ALPHV has been advertising the BlackCat Ransomware-as-a-Service (RaaS) on the cybercrime forums XSS and Exploit since early December. Like other ransomware groups, the gang also implements a double-extortion model, threatening to leak the stolen data if the victims don’t pay.

In the past, many victims of past ransomware attacks were not concerned about the publication of their data on a leak site in the Tor network believing that dark nets are not easy to access to the masses.

The ransomware gangs set up a website on the clear web for each victims and publish the stolen data on it.

It’s unclear if ALPHV plans to pursue this approach with every victim, but other recent victims of the crime group include a school district and a U.S. city. Most likely, this is a test run to see if it improves results.

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Pierluigi Paganini

(SecurityAffairs – hacking, ransomware)

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Pierluigi Paganini

Pierluigi Paganini is member of the ENISA (European Union Agency for Network and Information Security) Threat Landscape Stakeholder Group and Cyber G7 Group, he is also a Security Evangelist, Security Analyst and Freelance Writer. Editor-in-Chief at "Cyber Defense Magazine", Pierluigi is a cyber security expert with over 20 years experience in the field, he is Certified Ethical Hacker at EC Council in London. The passion for writing and a strong belief that security is founded on sharing and awareness led Pierluigi to find the security blog "Security Affairs" recently named a Top National Security Resource for US. Pierluigi is a member of the "The Hacker News" team and he is a writer for some major publications in the field such as Cyber War Zone, ICTTF, Infosec Island, Infosec Institute, The Hacker News Magazine and for many other Security magazines. Author of the Books "The Deep Dark Web" and “Digital Virtual Currency and Bitcoin”.