Ransomware Research
ShadowLocked Ransomware
ShadowLocked is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on December 1, 2025, this ransomware has been actively targeting systems worldwide.
Quick facts
- Ransomware Family
- ShadowLocked
- First Seen
- December 1, 2025
How ShadowLocked ransomware works
File modification behavior
ShadowLocked updates file modification timestamps after encryption.
File encryption patterns
ShadowLocked modifies encrypted files using specific patterns to mark them as encrypted:
Extensions added after encryption
- .shadowlocked
Technical indicators
Associated executable files
The following executable files are associated with ShadowLocked ransomware:
- shadow.exe
- bwhb09.exe
- Project1.exe
About this analysis
This ShadowLocked 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 ShadowLocked.
Detection coverage
Elastio detects ShadowLocked inside your data and backups.
The Hunt Engine uses Deep File Inspection to identify ShadowLocked 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.