Ransomware Research
Seiv Ransomware
Seiv is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on January 1, 2023, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- Seiv
- First Seen
- January 1, 2023
How Seiv Ransomware Works
File Encryption Patterns
Seiv modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..seivRansom Note and Payment Demands
After encrypting files, Seiv displays ransom notes demanding payment for file recovery:
READ_ME.SEIV.txtRansom message:
notes/READ_ME.SEIV.txt
Note locations:
DesktopRansom message:
notes/seiv.bmp
Note locations:
DesktopTechnical Indicators
Associated Executable Files
The following executable files are associated with Seiv ransomware:
ENcrypt0r.exe
Elastio Can Help You
Don't let Seiv ransomware take over your data
Elastio provides advanced ransomware protection and recovery solutions to keep your organization safe.
About This Analysis
This Seiv 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 Seiv.
Last updated: July 30, 2025