Ransomware Research
Poteston Ransomware
Poteston is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on June 1, 2021, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- Poteston
- First Seen
- June 1, 2021
How Poteston Ransomware Works
Targeted Files
Sample protected with ConfuserEx+Babel+MatObfuscation
File Encryption Patterns
Poteston modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..PotestonRansom Note and Payment Demands
After encrypting files, Poteston displays ransom notes demanding payment for file recovery:
readme.txtRansom message:
notes/readme.txt
Note locations:
RootDirectoryUserFoldersTechnical Indicators
Associated Executable Files
The following executable files are associated with Poteston ransomware:
SaraJay.exeWindows Session Manager.exesvchost.exeexecutable.exefile.exeprogram.exe
Elastio Can Help You
Don't let Poteston ransomware take over your data
Elastio provides advanced ransomware protection and recovery solutions to keep your organization safe.
About This Analysis
This Poteston 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 Poteston.
Last updated: July 30, 2025