fileEXPLAIN.txt
notes/EXPLAIN.txt
Ransomware Research
Spring Ransomware
Spring is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on January 1, 2025, this ransomware has been actively targeting systems worldwide.
Quick facts
- Ransomware Family
- Spring
- First Seen
- January 1, 2025
How Spring ransomware works
File modification behavior
How Spring alters file modification timestamps is not known.
File encryption patterns
Spring modifies encrypted files using specific patterns to mark them as encrypted:
Extensions added after encryption
- .spring
- .FIND_EXPLAIN.TXT.spring
Ransom note and payment demands
After encrypting files, Spring displays ransom notes demanding payment for file recovery:
About this analysis
This Spring ransomware analysis is part of Elastio's comprehensive ransomware detection database. Elastio provides advanced ransomware protection and recovery, helping organizations defend against and recover from ransomware attacks like Spring.
Detection coverage
Elastio detects Spring inside your data and backups.
The Hunt Engine uses Deep File Inspection to identify Spring across live data, replicated data, and backups. If this family is in your environment, Elastio finds it before encryption completes. Run a hunt against your recovery points to confirm.