Latvian national is charged with 19 counts of a 47-count indictment. She allegedly wrote code used by the Trickbot malware to control, deploy, and manage payments of Ransomware. The Trickbot gang is known for distributing Ryuk and Conti ransomware onto the compromised network of valuable corporate targets. Trickbot is a modular banking trojan that has been continuously upgraded with new modules and features since then. Microsoft and several partners announced that they took down some Trickbot C2s in October.
Source: https://www.bleepingcomputer.com/news/security/us-charges-latvian-for-helping-develop-the-trickbot-malware/