On May 2, 2024, Arctic Wolf Labs began monitoring deployment of a new ransomware variant referred to as Fog. The ransomware activity was observed in several Arctic Wolf Incident Response cases, each exhibiting similar elements. All victim organizations were located in the United States, 80% of which were in the education sector and 20% in the recreation sector.
We are sharing details of this emerging variant to help organizations defend against this threat. Please note that we may add further detail to this article as we uncover additional information in our ongoing investigation.