Russian Hacker Sentenced to 2 Years for TA551 Botnet-Driven Ransomware Attacks
Mar 25, 2026
Cybercrime / Ransomware
The U.S. Department of Justice (DoJ) said a Russian national has been sentenced to two years in prison for managing a botnet that was used to launch ransomware attacks against U.S. companies. Ilya Angelov, 40, of Tolyatti, Russia, was also fined $100,000. Angelov, who went by the online aliases "milan" and "okart," is said to have co-managed a Russia-based cybercriminal group known as TA551 (aka ATK236, G0127, Gold Cabin, Hive0106, Mario Kart, Monster Libra, Shathak, and UNC2420 ) between 2017 and 2021. "Angelov's group built a network of compromised computers (a 'botnet') through distribution of malware-infected files attached to spam emails," the DoJ said. "Angelov and his co-manager then monetized this botnet by selling access to individual compromised computers ('bots')." According to the sentencing memorandum , the threat group developed programs to distribute spam email and refined malware to bypass security tools...