Ransomware Research
Eris Ransomware
Eris is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on July 1, 2019, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- Eris
- First Seen
- July 1, 2019
How Eris Ransomware Works
Targeted Files
https://twitter.com/grujars/status/1164782056468963329
File Encryption Patterns
Eris modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..ERIS
..JUBE2
./\.[A-Z0-9]{5}$/
Ransom Note and Payment Demands
After encrypting files, Eris displays ransom notes demanding payment for file recovery:
@ READ ME TO RECOVER FILES @.txt
Ransom message:
notes/@ READ ME TO RECOVER FILES @.txt
Note locations:
EveryFolder
HELP-JUBE2.txt
/^HELP-[A-Z0-9]{5}\.txt$/
Ransom message:
notes/HELP-OIMVA.txt
Note locations:
EveryFolder
Technical Indicators
Associated Executable Files
The following executable files are associated with Eris ransomware:
radBBAFB.tmp.exe
radBBAFB.tmp.bin
Server.exe
unlockme123[V1.2.3][EMAIL_FIX].exe
Elastio Can Help You
Don't let Eris ransomware take over your data
Elastio provides advanced ransomware protection and recovery solutions to keep your organization safe.
About This Analysis
This Eris 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 Eris.
Last updated: July 30, 2025