A ransomware vaccine, called "Raccine," was released as an open source tool by Nextron Systems on 3 October 2020. Raccine prevents ransomware from attacking vssadmin.exe, a Windows utility that manages shadow copies of a Windows system's data. Threat actors can take advantage of vssadmin.exe to delete shadow volumes in Windows so that ransomware victims cannot restore their data from local backups.
"We see ransomware delete all shadow copies using vssadmin pretty often," post in the GitHub tex