Ransomware Research
SayLess Ransomware
SayLess is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on October 1, 2021, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- SayLess
- First Seen
- October 1, 2021
How SayLess Ransomware Works
Targeted Files
Encrypts User folders only
File Encryption Patterns
SayLess modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..saylessrsnmRansom Note and Payment Demands
After encrypting files, SayLess displays ransom notes demanding payment for file recovery:
SAYLESS-RANSOMWARE.saylessrsnm.txtRansom message:
notes/SAYLESS-RANSOMWARE.saylessrsnm.txt
Note locations:
DesktopTechnical Indicators
Associated Executable Files
The following executable files are associated with SayLess ransomware:
SayLessRnm Window.exe
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About This Analysis
This SayLess ransomware analysis is part of Elastio's comprehensive ransomware detection database. Elastio provides advanced ransomware protection and recovery solutions, helping organizations defend against and recover from ransomware attacks like SayLess.
Last updated: July 30, 2025