Ransomware Research
Symbiom Ransomware
Symbiom is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on July 1, 2017, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- Symbiom
- First Seen
- July 1, 2017
How Symbiom Ransomware Works
File Encryption Patterns
Symbiom modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..symbiom_ransomware_lockedRansom Note and Payment Demands
After encrypting files, Symbiom displays ransom notes demanding payment for file recovery:
README_Ransomware_Symbiom.txtRansom message:
notes/README_Ransomware_Symbiom.txt
Note locations:
DesktopTechnical Indicators
Associated Executable Files
The following executable files are associated with Symbiom ransomware:
Symbiom.exeOverWatch_Hack.exe
Elastio Can Help You
Don't let Symbiom ransomware take over your data
Elastio provides advanced ransomware protection and recovery solutions to keep your organization safe.
About This Analysis
This Symbiom 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 Symbiom.
Last updated: July 30, 2025