Medusa File Encryption Extension
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About the rule
Rule Type
Standard
Rule Description
Detects files renamed with the .medusa extension, indicating Medusa ransomware is actively encrypting data on the affected host.
Severity
Trouble
Rule Requirement
Criteria
Action1:
actionname = "File Created or Modified" AND (OBJECTNAME endswith ".medusa" OR FILENAME endswith ".medusa")
select Action1.HOSTNAME,Action1.MESSAGE,Action1.USERNAME,Action1.DOMAIN,Action1.OBJECTNAME,Action1.FILENAME,Action1.PROCESSNAME,Action1.FILETYPE,Action1.ACCESSLIST
Detection
Execution Mode
realtime
Log Sources
Windows
