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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!!.txt
Ransom message:
notes/read it!!.txt
Note locations:
EveryFolder
Ransom message:
notes/7cye0tfz2.jpg
Note locations:
Desktop
Technical Indicators
Associated Executable Files
The following executable files are associated with GreatKiRa ransomware:
1897.exe
_--------------------.exe
010101.exe
Elastio Can Help You
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Elastio provides advanced ransomware protection and recovery solutions to keep your organization safe.
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