Ransomware Research
TimeCrypt Ransomware
TimeCrypt is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on September 1, 2021, this ransomware has been actively targeting systems worldwide. Security researchers also track this malware under the aliases: Kcry.
Quick Facts
- Ransomware Family
- TimeCrypt
- First Seen
- September 1, 2021
- Known Aliases
- Kcry
How TimeCrypt Ransomware Works
File Encryption Patterns
TimeCrypt modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..kcryRansom Note and Payment Demands
After encrypting files, TimeCrypt displays ransom notes demanding payment for file recovery:
kcry-info.txtRansom message:
notes/kcry-info.txt
Note locations:
StartUpTechnical Indicators
Associated Executable Files
The following executable files are associated with TimeCrypt ransomware:
TimeCrypt.exeprogram.exesoftware.exefile.exelatest.exe
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About This Analysis
This TimeCrypt 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 TimeCrypt.
Last updated: July 30, 2025