Boriselcin

Mikhail Pavlovich Matveev, also known as Boriselcin, is a threat actor that has been implicated in significant cybercrime activities. Beginning at least as early as 2020, Matveev has been allegedly involved in deploying three ransomware variants: LockBit, Babuk, and Hive. These attacks targeted various entities including law enforcement agencies, hospitals, schools, and other government organizations. The U.S. Department of Justice (DOJ) indictment suggests that Matveev transmitted ransom demands related to each of these ransomware variants. In May 2023, the DOJ announced the indictment of Matveev for his alleged involvement in the deployment of these ransomware variants against victims both within the United States and abroad. Matveev, who used multiple aliases such as Wazawaka, m1x, Boriselcin, and Uhodiransomwar, is believed to be behind numerous substantial attacks on companies and critical infrastructure. Notably, he was identified as "Boriselcin", a brash personality who was the public persona of Babuk, a ransomware affiliate program that emerged on New Year's Eve 2020. Matveev, a 30-year-old Russian national, is considered by the FBI as one of the most wanted hackers. He is accused of working with three different ransomware gangs that extorted hundreds of millions of dollars from a range of institutions. Known for his bold online presence, Matveev operated under several monikers on cybercrime forums, including "Boriselcin". His activities have led to significant disruptions and financial losses, highlighting the ongoing threat posed by sophisticated cybercriminals.