In the last few days there have been various reports, both nationally and internationally, of a ransomware campaign called NetWalker, also known as Mailto or Koko, which appears to target healthcare centers, taking advantage of the current state of alarm declared as a result of the COVID-19 pandemic.
The ransomware attacks have experienced a great evolution from its beginnings, being able to identify a great amount of different families at the present time, many of them are highly sophisticated, with high propagation and persistence. In this blog we explain what is Sodinokibi and how it works.