Tools like PhotoRec or Recuva can sometimes find "deleted" original versions of files that were swapped for encrypted ones.
Moving forward, the best defense is the : keep three copies of your data, on two different media types, with one copy kept entirely offline. U2K ransomware [.u2k file virus] removal.
If the virus didn’t delete your Shadow Copy backups, this tool can revert files to their previous state. Tools like PhotoRec or Recuva can sometimes find
To prevent the ransomware from spreading to cloud storage or networked drives: on two different media types