Ransomware Research
GreatKiRa Ransomware
GreatKiRa is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on July 1, 2023, this ransomware has been actively targeting systems worldwide. Security researchers also track this malware under the aliases: KiRa.
Quick Facts
- Ransomware Family
- GreatKiRa
- First Seen
- July 1, 2023
- Known Aliases
- KiRa
How GreatKiRa Ransomware Works
File Encryption Patterns
GreatKiRa modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
./\.[a-z0-9]{4}\b/Ransom Note and Payment Demands
After encrypting files, GreatKiRa displays ransom notes demanding payment for file recovery:
read it!!.txtRansom message:
notes/read it!!.txt
Note locations:
EveryFolderRansom message:
notes/7cye0tfz2.jpg
Note locations:
DesktopTechnical Indicators
Associated Executable Files
The following executable files are associated with GreatKiRa ransomware:
1897.exe_--------------------.exe010101.exe
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About This Analysis
This GreatKiRa 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 GreatKiRa.
Last updated: July 30, 2025